CCHS 9th Literature/Comp , CCHS GA-Foundations of Algebra , CCHS Health and Personal Fitness ( 1 full credit) , CCHS Introduction to Business and Technology, 6/21 (FIRST)

What is the principal amount invested, P, in the compound interest equation B(t)=117(1+0.032512)12t? Enter your answer as a dollar amount, like this: $42.00.

$117.00

Use substitution to solve the system of equations {42x=42y−1253x=5y−8 The system has exactly one solution. What is the solution to the system? Enter your answer as an ordered pair, like this: (42, 53)

(-1, 5)

Audrey opened a boutique in her neighborhood. Her profit, in dollars, over a period of seven years is given by the function below what is the average rate of change over the interval [3,7]

$ 7,575 cents per year

The graph shows the cost, C, of sending m text messages. What is the cost per message?

$0.15 per message

Rick's Truck Rentals provides a one-day rental charge represented by the function below, where x represents the number of miles driven. R(x)= $0.60x +$20 What is the average rate of change over the interval [180, 240]?

$0.60 per mile

the graph represents the value of an investment account x years from the date of the initial investment. Estimate the average rate of change over the interval [15, 25].

$1,800 per year

Peter made an initial deposit into a savings account that accrues interest annually. The table represents the amount of money in his savings account in x years x 2 7 12 17 22 g(x) $3,244.80 $3,947.80 $4,803.10 $5,843.70 $7,109.76 What is the approximate average rate of change over the interval [2, 17]?

$173.26 per year

The function below represents the balance of a savings account, which is compounded continuously at an annual interest rate, t years after an initial deposit of $2,000. A(t) = $2,000e0.08t What is the approximate average rate of change over the interval [5, 10]?

$293.49 per year

Adelaide has a credit card with a company that charges $2.50 for every day a payment is late. If she paid $548.56 for a bill that is 3 days late, how much was the bill without the late fee?

$541.06

Astrid has a data plan through her cell phone company where she pays $44 a month for 5,000 kilobytes (KB) of data and $0.025 for each additional KB over 5,000. To the nearest cent, how much would Astrid need to pay for her data plan if she used 5,673 KB of data?

$60.82

The graph above shows the amount Tina earns, w, before taxes after working h hours. How much does Tina make per hour?

$8.00

The function below represents the balance of a savings account, which is compounded continuously at an annual interest rate, t years after an initial deposit of $9,000. A(t) = $9,000e0.06t What is the approximate average rate of change over the interval [5, 10]?

$850.07 per year

The Saanvi family wants to move to a new town. How can they best determine whether a certain part of the town has gangs? Assess current criminal reports in the area.Check the names of people who live in the area.Rank schools that may affect having a good education.Identify areas that may encourage alcohol abuse.

- Assess current criminal reports in the area.

Why is the main reason to move the person in need of help to a dry area when using an AED? Water might ground the AED. Water can interfere with the AED's reading. Electricity can travel through water. Electricity will not flow through a wet body.

- Electricity can travel through water.

Greg was playing tennis with his friend Tony. Tony suddenly clutched his chest and fell to the ground. Tony was shallowly breathing. After calling 911, Greg performed chest compressions on Tony and waited for the paramedics to arrive. The paramedics were surprised to see Greg performing chest compressions on his friend. Why were the paramedics most likely surprised? Only trained people like paramedics can do chest compressions. Greg's friend was breathing and did not need chest compressions. Tony needed to be at the hospital before having chest compressions administered. Greg should have waited for the paramedics to arrive before doing chest compressions.

- Greg's friend was breathing and did not need chest compressions.

Jonah saw a man unconscious sprawled on the grass near a walkway. He called out but the man did not answer. The man was not breathing so Jonah called 911. While he waited for help to arrive, he made a fist, put it on the man's chest, and placed his other hand over his fist and did compressions. What should Jonah have done differently? He should have done compressions before calling 911. He should have done rescue breathing instead of hand compressions. He should have used the heel of his hand instead of a fist. He should have used two fingers while doing compressions.

- He should have used the heel of his hand instead of a fist.

Jessica is helping a friend dislodge a piece of meat from her throat. She delivers five blows on her friend's back with her fist and then gives him five abdominal thrusts. Is Jessica doing the procedure correctly? No, she should use the heel of her hand for the blows. No, she should use the side of her hand for the blows. No, she should use her elbows to deliver the blows. No, she should use a tennis ball to deliver the blows.

- No, she should use the heel of her hand for the blows.

Raymond made a list of the steps to take when using an AED on adults. 1. Dry the person. 2. Remove any excessive hair. 3. Place pads on the person as shown on the AED. 4. Push the "shock" button when necessary. 5. Press the "analyze" button. 6. Stay clear of the person when the AED says "clear." What does Raymond need to change to correct his list? Place the pads on the person first before drying. Press "analyze" first, and then "shock" when necessary. Add "do compressions" between steps 2 and 3. Add "do rescue breathing" between 1 and 2.

- Press "analyze" first, and then "shock" when necessary.

Calla sees her 10 year old sister choking. She does the five-and-five approach. What did Calla do? She did five chest compressions and then five rescue breaths. She did five rescue breaths and then five chest compressions. She did five blows on the back and then five abdominal thrusts. She did five abdominal thrusts and then five blows on the back.

- She did five blows on the back and then five abdominal thrusts.

Jason pressures Emmanuel to be a gang member. Which choice is the best way Emmanuelle can respond? Tell Jason he is not interested in joining. Ignore Jason and brush off what he says. Lighten the mood by changing the subject. Keep quiet and continue listening to Jason.

- Tell Jason he is not interested in joining.

Nayla has positioned a choking victim correctly so she can do the Heimlich maneuver. She places one hand flat on the abdominal area of the victim, and then places her other hand flat on top of the first hand. What is wrong with the position of Nayla's hands? The first hand should be shaped into a fist, and the second hand should be flat. The first hand should be shaped into a fist, and the second hand should be sideways. The first hand should be shaped into a fist, and the second hand should grasp the fist. The first hand should be shaped into a fist, and the second hand should also be a fist.

- The first hand should be shaped into a fist, and the second hand should grasp the fist.

A study examined the relationship between the criminal offenses and the number of years in a gang. A graph titled Self-Reporting of Male Criminal Activity shows years of gang membership on the horizontal axis and number of offenses on the vertical axis. There are 15 offenses in 1 year, 35 offenses in 2 years, and 50 offenses in 3 years. How does this graph explain the risk associated with gang involvement? The longer someone is in a gang the more crimes committed. The longer someone is in a gang, the harder it is to leave the group. Individuals in a gang for one year have a hard time leaving the group. Individuals in a gang for one year have a large risk of committing a crime.

- The longer someone is in a gang the more crimes committed.

An AED restores the heart's normal rhythm by delivering antibiotics into the system.a salt solution into the system.an electric shock into the system.vitamins into the system.

- an electric shock into the system.

Which step of first aid for bleeding slows the flow of blood? removing debris applying pressure cleaning the wound using a clean bandage

- applying pressure

Which gang activity leads to legal consequences? dropping out of college assaulting people with or without deadly force missing less than half an entire school year disobeying caregivers and hanging out past curfew

- assaulting people with or without deadly force

Which is a personal risk factor for wanting to join a gang? receiving poor grades in school having a family member in a gang hearing others discuss being in a gang feeling isolated from the popular in-crowd

- feeling isolated from the popular in-crowd

An AED is a portable device that checks a person's heart rhythm. blood pressure. cholesterol. temperature.

- heart rhythm.

Nicolas has been in a gang for many years. Which health problem is he at risk of developing? excess weight gain post-traumatic stress disorder sleep apnea type 2 diabetes

- post-traumatic stress disorder

Which characteristic describes one way a gang is identified? the ages of people who belong to a group the type of homes that people in a group own symbols that group members use to identify who they are the type of criminal activity that group members engage in

- symbols that group members use to identify who they are

The graph represents the value of a car after x years from the date of purchase. Estimate the average rate of change over the interval [2, 8].

-$1,000 per year

A water-storage tank is being emptied for cleaning. The amount of water left in the tank, in liters, is represented by the function below, where x represents the time elapsed, in minutes. W(x)= -12x + 60 What is the average rate of change over the interval [2, 4]?

-12 liters per minute

Patrick made tortilla soup in his slow cooker and has turned the heat off to allow the soup to cool slightly before consuming. The temperature, in degrees Fahrenheit, of the soup x minutes after the heat was turned off is represented by the function below. T(x) = 11 + 159e-0.021x What is the approximate average rate of change over the interval [10, 20]?

-2.44 degrees per minute

Using the graph above, determine at which of the following values of x is the rate of change of the function close to -4.

-3

Scientists are examining a substance that has a half-life of 10 years. The table represents the amount, in grams, of the substance after x half-life cycles. x 2 3 4 5 6 g(x) 750 375 187.5 93.75 46.875 What is the average rate of change over the interval [4, 6]? (Round to the nearest hundredth if necessary.)

-70.31 grams per half-life cycle

This graph shows the different gang-related activities reported in small and large communities.A graph titled Report of Gang Related Criminal Activity shows activities on the horizontal axis and percentage of people reporting on the vertical axis. 15% reported aggravated assault. 10% reported burglary. 23% reported drug sales. 47% reported graffiti. 8% reported larceny/theft. 6% reported motor vehicle theft. 5% reported robbery. According to the graph, which gang-related activity is LEAST reported in a large community? graffiti robbery drug sales aggravated assault

-robbery

Using the graph above, determine at which of the following values of x is the rate of change of the function close to 1.

0

An amusement park issued a coupon to increase the number of visitors to the park each week. The function below represents the number of visitors at the amusement park x weeks after the issuance of the coupon. V(x) = 600(1.5)x What is the approximate average rate of change over the interval [2, 6]?

1,371 visitors per week

While riding in a car, Rachel saw 14 red cars pass by in one minute. At this rate, how many red cars will she see in 2 hours?

1,680

The graph represents the coyote population in a town x years from the date of their initial discovery. Estimate the average rate of change over the interval [35, 70].

11 coyotes per year

The graph shows the altitude, a, of a plane, in feet, after t minutes. What is the rate of ascent of the airplane?

125 feet per minute

In Ben's apartment complex, residents are fined $15 per day each day the rent is late. Last month, Ben wrote the apartment complex a check for $1,040 when his monthly rent is only $845. How many days late was Ben's rent?

13

A software company developed a mobile application to help students stay organized. The table represents the number of downloads of the application x days after its release date. x 20 40 60 80 100 120 g(x) 3,534 6,654 9,774 12,894 16,014 19,134 What is the average rate of change over the interval [60, 120]?

156 downloads per day

Landry has made 1,267 cups of coffee with her coffeemaker, and she has changed the reusable filter 6 times. She needs to change the filter again and wants to know how many cups of coffee she can make using the new filter. If the coffeemaker came with one filter already in it, how many cups of coffee did Landry make per coffee filter?

181

Michael got a job peeling potatoes. In the first two hours of his shift, he peeled 48 potatoes. How many potatoes can he peel in eight hours?

192

Consider the function f(x)=x3+12, and its inverse, f−1(x)=2x−13. Use f−1(x) to solve the equation 4.5=x3+12. What is the correct solution?

2

What is the slope of the function?

2

Cesar needs cups of flour to make a cake that will serve 16 people. If Cesar wants to make enough cake to serve 32 people, how many cups of flour will he need?

2 1/2

The graph shows the population, p, of a town after t years have elapsed. What is the annual rate of growth in the town?

2,500 people per year

Michael got a job peeling potatoes. In the first two hours of his shift, he peeled 52 potatoes. How many potatoes can he peel in eight hours?

208

The graph shows the distance a car can travel, d, on g gallons of gasoline. How many miles per gallon does the car get?

25 miles per gallon

Michael got a job peeling potatoes. In the first two hours of his shift, he peeled 60 potatoes. How many potatoes can he peel in nine hours?

270

A factory manufactures handbags. The number of handbags it manufactures per hour on a certain day is given by the table below. Time (hours) x Number of Handbags f(x) 0 0 1 25 2 50 3 75 4 100 5 125 6 150 7 150 8 190 9 230 10 270 What is the average rate of change over the interval [6, 10]?

30 handbags per hour

The graph represents the number of subscribers for a mobile company x months from the start of operations. Estimate the average rate of change over the interval [5, 10].

340 subscribers per month

The number of views of a viral video is increasing at an exponential rate. The table represents the number of views of the video after x hours. x 3 5 7 9 11 g(x) 27 243 2,187 19,683 177,147 What is the average rate of change over the interval [5, 9]?

4,860 views per hour

Josh is going on a road trip to the countryside. The table represents the distance, in miles, Josh has traveled after x hours. x 2 5 8 11 14 17 g(x) 102 255 408 561 714 867 What is the average rate of change over the interval [8, 17]?

51 mph

To get to work, Truman waited 14 minutes for the bus, then traveled 22.4 miles on the bus at a speed of 32 miles per hour. How much time passed from the time Truman left for work to the time he arrived at work?

56 min

Josh is going on a road trip to the country side. The table represents the distance, in miles, Josh has traveled after x hours. x 2 5 8 11 14 17 g(x) 118 295 472 649 826 1,003 What is the average rate of change over the interval [8, 17]?

59 mph

During the holiday season, Duke and Iris work at a gift-wrapping station. Duke can wrap 49 gifts per hour, and Iris can wrap 38 gifts per hour. If they work together, how long will it take them to wrap 435 gifts?

5h

He remembers that the slope of the line through the ordered pairs in the table was 4. What is the missing y-value in the table?

7

Which treatments would most likely be recommended for type 2 diabetes? A. Proper diet B. Radiation C. Transplant D. Calcium supplements

A. Proper diet

Which disease has symptoms including fragile bones and a stooped posture? A. osteoporosis B. celiac disease C. type 2 diabetes D. sickle cell disease

A. osteoporosis

Which disease may be caused by an unhealthy lifestyle? A. osteoporosis B. sickle cell disease C. Huntington's disease D. lupus

A. osteoporosis

Which treatment would most likely be used for cardiovascular disease? A. pacemaker B. radiation C. blood transfusions D. bone marrow transplants

A. pacemaker

In a laboratory, Emma poured a chemical down the drain. While doing so, she experienced severe skin irritation. Which statement most likely explains why she did not report the incident? A.) She feared that people would discover why she got an injury. B.) She feared that health professionals would not be able to help her. C.) She feared that talking might lessen the severity of the situation. D.) She feared that people would also find out that her eyes were irritated.

A.) She feared that people would discover why she got an injury.

Quinn is reading about safety equipment. In which situation will he find this knowledge most useful? A.) when operating power tools B.) while taking the dog for a walk C.)when walking to a friend's house D.) while doing his homework on a computer

A.) when operating power tools

Megan is going on a long distance road trip. She drives for 19 miles before being able to travel at a constant speed using cruise control. The equation used to find her total distance traveled is shown below. y=70x + 19 If y is the total number of miles driven, and x is the number of hours driven after reaching 19 miles, which statement best describes the rate of change in the distance traveled?

For every hour, she will drive 70 miles.

Use the invertible function f(x)=x+3−2 to answer the questions. Part A: What is f−1(x)? Part B: What is the domain of f−1? Select one answer for Part A and one answer for Part B.

A: f−1(x)=x2+4x+1, B: −2≤x<∞

Which lifestyle choice may contribute to the development of noncommunicable diseases? A. taking the stairs B. eating fast food C. exercising regularly D. eating fruits and vegetables

B. eating fast foods

Which factor contributes to the development of osteoporosis? A. genetics B. lack of calcium C. naturally occurring exposure D. ingestion of gluten products

B. lack of calcium

What is the slope of the line on the graph below?

B.)

Which expression can be used to determine the slope of the linear function graphed below?

B.)

Consider the function f(x)=−x+2+5 for −2≤x<∞. The inverse of this function is f−1(x)=x2−10x+27. A: What is the domain of f−1? B: Why must the domain of f−1 be restricted? Select one answer for Part A, and select all correct answers for Part B.

B: Both functions f(x) and f−1(x) must be one-to-one, and f−1(x) is not one-to-one unless the domain is restricted., A: −∞<x≤5, B: The domain of f−1(x) must be restricted so that it matches the range of f(x).

Four students drew graphs of a linear function. Which student drew a line with a slope of 3?

Benito

New York created bicycle lanes to promote safety. What was the result of this new legislation?

Bicycle riding in the city doubled.

Which practice can help prevent many diseases? A. eating foods rich in gluten B. getting blood transfusions C. avoiding tobacco products D. taking calcium supplements

C. avoiding tobacco products

Which treatment is used to manage the symptoms of celiac disease? A. fat-free diet B. sugar-free diet C. gluten-free diet D. protein-free diet

C. gluten-free diet

Ava wrote the expression to determine the slope of a line. Which table might represent Ava's line?

C.)

Which statement best explains Marisol's error?

C.)

For which locations does the Occupational Safety and Health Administration (OSHA) enforce safety? A.)kitchens in private homes B.) backyard farms C.) community malls D.) personal art studios

C.) community malls

Which is a symptom that is common in people with Huntington's disease? A. Pain B. Nausea C. Delayed growth D. Involuntary movement

D. Involuntary movement

Sanji stops exercising and gains several pounds. Which disease is she at risk of developing? A. celiac disease B. sickle cell disease C. Huntington's disease D. cardiovascular disease

D. cardiovascular disease

Which is a symptom that is common in people with sickle cell disease? A. mood disturbances B. fragile bones C. stooped posture D. frequent infections

D. frequent infections

Which is a factor that influences the onset of type 2 diabetes? A. ingestion of gluten B. presence of microbes C. alcohol intake D. insulin resistance

D. insulin resistance

Lara does a flip into the pool and injures herself. Which is a possible long-term consequence of the injury? A.) a red mark from the splash B.) a bruise at the site of injury C.) an immediate need for treatment D.) a permanent disability or paralysis

D.) a permanent disability or paralysis

A pizza buffet has prepared 22 pizzas to place on the line at the beginning of lunch at 11:00 a.m. The equation used to describe the total number of pizzas that have been placed out on the buffet line is shown below. y= 18x + 22 If x represents every 6 minutes after 11:00 a.m, which statement best describes the rate of change in the number of pizzas set out on the buffet?

Every 12 minutes, 36 more pizzas were set out on the buffet.

A fighter jet reaches the maximum point of elevation for its flight path 50 miles after take-off. The equation used to determine the total number of miles the jet will travel is shown below. y= 18 1/3x + 50 If y represents the total number of miles traveled, and x represents the number of minutes the jet flies at maximum elevation, which statement best describes the rate of change?

For every 1 minute flying at maximum elevation, the fighter jet will travel an additional 18 1/3 miles.

A fighter jet reaches the maximum point of elevation for its flight path 70 miles after take-off. The equation used to determine the total number of miles the jet will travel is shown below. If y represents the total number of miles traveled, and x represents the number of minutes the jet flies at maximum elevation, which statement best describes the rate of change?

For every 1 minute flying at maximum elevation, the fighter jet will travel an additional 7 1/2 miles.

Which activity is the most effective way to prepare for an emergency?

taking a multiple day CPR class

Tara is training for a marathon. She is able to run 6 miles before settling into a constant pace. The equation to find her distance after her pace is set is shown below. y= 5/27x +6 If y is the total miles run, and x is the number of minutes after she reaches 6 miles, which statement best describes the rate of change in the distance run?

For every minute, she will run of a mile.

The number of graduating seniors at two local high schools is shown in the graphs, where x represents the number of years since 2005. The number of students graduating from Fannon High School is represented by f(x), and the number of students graduating from Guthrie High School is represented by g(x). Compare the average increase of the number of graduating seniors per year for both schools.

From 2005 to 2010, the average increase of the number of graduating seniors per year is greater for fannon High School than for guthrie High School by 50 students per year.

How are stress and physical health related? High stress levels increase physical fitness. The body is not able to function under high stress. The body needs high stress to assist with healing. High stress levels can damage the body's well-being.

High stress levels can damage the body's well-being.

Which statement describes Jalen's error?

Jalen computed the ratio of change in x to change in y.

Jorge does not experience a strong stress response to public speaking, but Dan does. Which factor most likely causes this difference? Jorge has a mental illness. Jorge is smarter and nicer than Dan. Jorge's parents put a lot of pressure on him. Jorge's past experiences with public speaking have been positive.

Jorge's past experiences with public speaking have been positive.

Which statement best explains who earns the most money per item sold?

Marsha earns the most money per item sold because her line increases at a faster rate than Dreya's.

How can someone distinguish between positive and negative stressors in his or her life? Only negative stressors create strong and prolonged anxiety. Only negative stressors cause a change in behavior and outlook. Only positive stressors influence the body and the mind. Only positive stressors result in higher heartbeat and breathing rates.

Only negative stressors create strong and prolonged anxiety.

Use the invertible function f(x)=7−x5+3 to answer the question. Which option shows the correct steps to find f−1?

Step 1 f(x)=7−x5+3 Step 2 y=7−x5+3 Step 3 x=7−y5+3 Step 4 x−3=7−y5 Step 5 (x−3)5=7−y Step 6 y=7−(x−3)5 Step 7 f−1(x)=7−(x−3)5

Which answer choice gives the solution set of the system of inequalities −5<x and y≥2?

The set of all ordered pairs whose x-coordinate is in the interval (−5,∞) and whose y-coordinate is in [2,∞).

The relationship between money earned and hours worked is linear. Joe computes the slope between (4, 30) and (12, 90), then computes the slope between (4, 30) and (10, 75). How do the two slopes compare?

The slope between (4, 30) and (12, 90) and between (4, 30) and (10, 75) is the same.

Which comparison of the slopes of the two lines is accurate?

The slope of Car 1's graph is 5 greater than the slope of Car 2's graph.

Examine the system of equations {x+2y+z=34x−y+9z=1−3x+5y=7 Which observation about the system of equations is accurate?

The system is potentially solvable because there is an equal number of equations and unknowns.

Which list places the companies in order from the steepest slope to the least steep slope?

W, Z, U, Y

Which phrase best describes the Occupational Safety and Health Administration (OSHA)? a federal agency that promotes workplace safety a local agency that conducts onsite safety training a local agency that inspects workplace hazards a federal agency that monitors workplace behavior

a federal agency that promotes workplace safety

Lara does a flip into the pool and injures herself. Which is a possible long-term consequence of the injury?

a permanent disability or paralysis

Which risk factor can be controlled to prevent an injury?

actions of negligence

How can a person best reduce the risk of injuries on the road? by always wearing a seat belt when driving by obeying speed limits only on highways by following family advice about booster seat installation by riding with people who only occasionally drive while intoxicated

by always wearing a seat belt when driving

How can a business owner best reduce the risk of injuries in the workplace?

by monitoring employee behavior

How can a teenager best avoid risky behaviors that lead to injury?

by refusing to drink alcohol

How can a teenager best avoid risky behaviors that lead to injury? by refusing to drink alcohol by speeding only when running late for school by fighting only when provoked to do so by attending parties where alcohol is present

by refusing to drink alcohol

Which physical effect is associated with acute stress?dizziness depression stomach ulcers type 2 diabetes

dizziness

Observe the three exponential functions below, each one expressed as a graph, table, or equation. Put the functions, with their corresponding intervals, in order from least to greatest according to their average rates of change over those intervals.

f(x) interval [2,3]; h(x) interval [2,3]; g(x) interval[2,4]; h(x) interval [3,4]

Which characteristic is typical of eustress? affects social relationships has emotional/mental effects causes illness focuses energy

focuses energy

× + − ÷

for each, sum, difference, shared equally

The graph shows the effects of gang violence on small and large communities. A graph titled Report of Gang Related Criminal Activity shows activities on the horizontal axis and percentage of people reporting on the vertical axis. 15% reported aggravated assault. 10% reported burglary. 23% reported drug sales. 47% reported graffiti. 8% reported larceny/theft. 6% reported motor vehicle theft. 5% reported robbery. According to the graph, which gang-related activity occurs the MOST in a large community? graffiti robbery vandalism drug sales

graffiti

Which physical effect of stress can have fatal consequences? skin diseases heart disease reproductive problems joint and muscle damage

heart disease

Which situation is an example of a stressor that typically causes distress? taking a new course going on a first date living in a crowded space learning to play an instrument

living in a crowded space

Raphael does not know how to safely use a circular saw. Which is long-term consequence that could result? A.) losing several fingers if he incorrectly uses the saw B.) missing a day from work if he cuts himself when using the saw C.)feeling pain if he gets sawdust in his eye during the cutting process D.) experiencing discomfort if he bruises his hand while handling the saw

losing several fingers if he incorrectly uses the saw

Which psychological condition may result from stress? increased blood pressure schizophrenia unusual irritability post-traumatic stress disorder

post-traumatic stress disorder

Which technique is an example of healthy stress management? sleeping most of the day limiting physical activity practicing relaxation techniques drinking caffeinated beverages

practicing relaxation techniques

As a result of gang violence, the government spends millions of dollars on new housing. rehabilitation. struggling businesses. schools with poor ratings.

rehabilitation

Lena helps a child who is choking on his food. Which reliable method prepared her for helping with this injury?

safety training classes for babysitting

Bruno is responding to an injury. After checking for responsiveness and checking the surrounding area, what should he do next, according to the "three Cs"? Wait for help to arrive. Speak with a 911 dispatcher. Ask a nearby person for help. Administer CPR to the injured person.

speak to 911 dispatcher

Moira owns a small clothing store. She buys clothing items from a distributor and then sells them to her customers for a marked-up price. She determines the mark-up amount based on the distributor price. Which quantity represents the dependent variable in this context?

the mark-up amount

Which is a long-term consequence of an injury?

the need for physical therapy and rehabilitation

Which is a long-term consequence of an injury? a few missed days from work or school the need for physical therapy and rehabilitation some temporary discomfort at the injury site a visit to the emergency room right after the injury

the need for physical therapy and rehabilitation

Why do governments create laws to reduce injury risks?

to ensure the safety of drivers and pedestrians on roadways

The chart shows the results of a study on stress reduction techniques. A student wants to give his anxious friend advice on reducing stress. Based on the chart, what stress reduction technique should he recommend? exercising daily talking with friends transcendental meditation concentration or contemplation

transcendental meditation

Cadence is counting the number of beats in two songs, "Minuet" and "Duo." "Minuet" is w minutes long and has x beats per minute. "Duo" is y minutes long and has z beats per minute. "Duo" has at least as many beats as "Minuet." Which inequality correctly compares the total number of beats in "Minuet" to the total number of beats in "Duo"?

wx≤yz

Gil has x shirts, x pairs of pants, and x pairs of shoes. Gil then goes shopping and buys 3 shirts and 2 pairs of shoes. If an outfit consists of 1 shirt, 1 pair of pants, and 1 pair of shoes, which inequality correctly compares the number of possible outfits Gil owned before and after shopping?

x3<x3+5x2+6x

Consider the function f(x)=2sin⁡⁡(x2)−1 on [0,π2). Use a graphing tool to approximate the zero(s) to the nearest thousandth. Use π≅3.14 if needed.

x=13π

Use the function f(x)=4x2−3x+1 to answer the question. Which option(s) represent a restricted domain that makes f invertible? There may be more than one correct answer. Select all that apply.

−∞<x≤−38, 38≤x<∞, −∞<x<0, −38<x<38, 38<x<∞

A scientist is measuring the reactivity rate of a chemical as he increases its temperature. The scientist records R, the reaction rate per second, and t, the temperature in degrees Celsius. The scientist focuses his measurements on temperatures between −40 and 40 degrees Celsius, and he finds that the reaction rate can be determined by the function R(t)=1.01t−35.2−0.03. Part A: Which quantity is the independent variable? Part B: Which quantity is the dependent variable? Part C: Which graph is scaled appropriately for this situation? Select one answer for Part A, one answer for Part B, and one answer for Part C.

A: The independent variable is the temperature., B: The dependent variable is the reaction rate per second.

Use the following system of equations to fill in the blanks. {2a+5b=−b2a+1+2∗5b=−2b The system potentially has _blank 1_ solution(s) because _blank 2_. Select the word or phrase that fills in each blank in the previous sentence to make it a true statement.

blank 1: at least one, blank 2: there are the same amount of equations as unknowns

Use the exponential function f(t)=1.02t to answer the questions. A: What is the equation of the horizontal asymptote in this function? B: Does this function represent exponential growth or decay? Remember that an exponential function is growing if it is increasing, and decaying if it is decreasing. C: What is the initial value of the function, f(0)? Select one answer for question A, one answer for question B, and one answer for question C.

C: f(0)=1, B: exponential growth (increasing), A: y=0

Which scale would be appropriate for the x- and y-axes?

Count each axis by units of about 0.25 because they represent the weight of the candy, and the total weight is less than or equal to 7.3.

Which expression(s) is (are) equivalent to 7⋅54t? There may be more than one correct answer. Select all that apply.

7⋅6t⋅32t, 7⋅6t⋅9t, 7⋅(2⋅33)t, 7⋅2t⋅33t

Morad and Elias are car mechanics. Morad can complete a certain task in x hours. Elias can complete the same task in y hours. Which equation correctly describes their combined hourly rate of work?

1x+1y=x+yxy

The system of equations {44x=416y+84y+5x+3=2xy−17 has exactly one solution. Use substitution to find the solution. What is the solution? Enter your answer as an ordered pair, like this: (42, 53)

(-10, -3)

The system of equations {z−2x−2y=−72y+8x−z=−113y+9z+2x=3 has exactly one solution. Use substitution to find the solution. What is the solution? Enter your answer as an ordered pair, like this: (42, 53)

(-3, 6, -1)

The system of equations {3x+9y3=−2113y3+4x=−1 has exactly one solution. Use substitution to find the solution. What is the solution? Enter your answer as an ordered pair, like this: (42, 53)

(-88, 3)

Consider the inequality x3+4x2−5x<0. Select all intervals for which the statement is true.

(0,1), (−∞,−5)

Which expressions are equivalent to x7? There may be more than one correct answer. Select all that apply.

(x21)1/3, x3⋅x4, x15x8

Which sets represent the solutions to the compound inequality x>−8 and x≤5? There is more than one correct answer. Select all that apply.

(−8,5], (−∞,5]∩(−8,∞)

Which set represents the solutions to the compound inequality x<−3 or x≥7?

(−∞,−3)∪[7,∞)

Which solution set describes the solutions to the inequality −3x2+1≤−107?

(−∞,−6]∪[6,∞)

What number, rounded to the nearest hundred thousandth (five decimal places), is represented by e?

2.71828

Brynn and Castor are counting their pocket change. Brynn's change is worth more than Castor's. Castor has q quarters and p pennies. Brynn has d dimes, q quarters, and n nickels. Which inequality correctly compares the value of Brynn's pocket change to the value of Castor's pocket change?

0.25q+.01p<.025q+.1d+.05n

Glenda plans to paint her bedroom, and she is mixing paint to create the right color. She starts with a white base paint and pours in some blue paint. Right now, her mixing bucket contains 5 quarts of paint, with a concentration of 20% blue paint. Glenda wants to increase the blue paint concentration to at least 30%, but less than 35%. Which inequality should Glenda use to find the number of quarts of blue paint she should add?

0.30≤1+x5+x<0.35

Use the half-life function Q(t)=235,000⋅((18)h)(th) to answer the question. What is the half-life, h, if (18)ℎ=12? Use this tool for calculating h to find your answer. Enter your answer as a decimal rounded to the nearest hundredth, like this: 42.53

0.33

Elaina throws a paper airplane across her bedroom. The height of the plane is modeled by the function h(t), where h is the height of the airplane in feet, and t is the time in seconds since she threw the plane. The function h(t) is shown in the graph. An even-degree polynomial whose ends are pointing downward and which passes through the points (negative 0.01, 0), (0.54, 6.93), (1.79, 1.69), (2.52, 2.95), and (2.98, 0). The x-axis is labeled as Time (in seconds), and the y-axis is labeled as Height (in feet). © 2017 FlipSwitch. Created using GeoGebra. After approximately how many seconds does the plane reach its maximum height?

0.5 seconds

Consider the function f(x)=tan⁡⁡x with a domain of 0<x<π2, where x is in radians. What is the range of f−1(x)?

0<f−1(x)<π2

Lorena is comparing the winning percentages of two baseball teams. The Scorpions have won 20 out of 35 games. The Iguanas have won 10 out of 34 games. There are x games remaining until the playoffs. Which rational equation correctly describes the event in which the Iguanas win y of the remaining games and reach the same winning percentage as the Scorpions? Assume that the Scorpions do not win another game.

10+y34+x=2035+x

Which of the following expressions is/are equivalent to 3⋅36x? There may be more than one correct answer. Select all that apply.

12x⋅3x+1, 22x⋅32x+1, 3⋅62x

Momoko owns a small business complex that consists of two square buildings that are attached on one side, as shown here. Two squares located back-to-back with the area measurements described in the question. © 2017 FlipSwitch. Created using GeoGebra. The area of the larger building is 10y square feet. The area of the smaller building is 5x square feet. Momoko decides to install a path that runs a length of 140 feet along the perimeter of the complex. Which radical equation correctly describes the length of the path in terms of x and y?

140=410y+25x

Ruben wants to plant a rectangular vegetable garden. He will use a patch of land that is 3 times as long as it is wide. Ruben also decides to leave a 3-inch border along the perimeter of the garden, where nothing will be planted. This leaves Ruben with a total planting area of 180 square inches. Which equation correctly describes the available planting area for the vegetable garden?

180=3x2+24x+36

Which option is closest to the value of e?

2.71828

The following graph shows the height, h, of a model rocket as time, t, passes in seconds. A graph of a parabola opening downward and passing through the points (0, 12), (1, 20.04), (2.55, 24.76), (4, 20.64), (5, 13), and (6.1, 0). © 2017 FlipSwitch. Created using GeoGebra. What is the maximum height reached by the rocket? After how many seconds does the rocket reach that height? The rocket reaches a maximum height of about _[blank 1]_ feet after _[blank 2]_ seconds.

24.76, 2.55

Which option is equivalent to 2x⋅37+y=25⋅3y?

2x−5⋅37=1

Use the properties of exponents to rewrite the expression x2⋅y5x−1⋅y4 in the form xa⋅yb. What are the values of a and b? Enter your answer as numbers in the order of a, b, placing a comma between the numbers, like this: 4, 2

3, 1

A car dealership can maximize its daily profit from sales, P, according to the function P(s)=−150s2+9000s+5000, where s is the number of salespeople working that day. How many salespeople should be kept on hand in order to maximize daily profit? The dealership should keep _[blank]_ people on hand in order to maximize daily profit. Enter your answer as the number that correctly fills in the blank in the previous sentence, like this: 42

30

Jorge is testing an antenna's signal strength as it is exposed to cycles of interference. The antenna's signal strength during the test can be modeled by the function S(t)=sin⁡⁡t, where t is time in seconds. For what value of t in the domain 0≤t≤2π is the signal the weakest?

3π/2

Rada is buying a variety of candy from the store. She fills a bag with x pounds of chocolate candy priced at $4.99 per pound. She fills another bag with y pounds of fruit-flavored candy priced at $5.99 per pound. When she checks out, she is charged $39.43 for 7.3 pounds of candy. A: Which equation represents the amount of money Rada is spending on candy? B: Which equation represents the total weight of candy that Rada is buying? Select one answer for Question A and one answer for Question B.

4.99x+5.99y=39.43, x+y=7.3

Niko is constructing two solid boxes, each of which is a rectangular prism. The first box is 3 times longer than it is wide, and its height is 5 inches shorter than its width. The second box has a width that is 10 inches narrower than its length, and its height is 4 times longer than its width. The first box can fit 1500 cubic inches of material inside of it, and twice as much material can fit in the second box. Which equation correctly describes the total amount of material that will fit inside both boxes, in terms of x and y?

4500=3x3−15x2+4y3−80y2+400y

A bird watcher spots a sparrow in a tree. The sparrow sits in a nest that is 10.5 feet above the bird watcher's eye level, at a 35° angle of elevation from the birdwatcher. The bird watcher then notices a hawk in the same tree, 7.4 feet above the sparrow, at a certain angle of elevation. The bird watcher stands 15 feet from the base of the tree. What is the angle of elevation from the bird watcher to the hawk? Round your answer to the closest degree.

50°

A rescue team is deployed via helicopter to rescue a struggling swimmer. The helicopter locates the swimmer, who is several feet from a tethered buoy. The helicopter hovers 400 feet over the buoy as its team prepares to rescue the swimmer. Initially, the swimmer sees the helicopter at an angle of elevation of x degrees. The swimmer then swims 5 feet closer to the buoy, and now sees the helicopter at an angle of y degrees. Which trigonometric equation correctly models the distance the swimmer swam toward the buoy in terms of x and y?

5=400tan⁡x−400tan⁡y

Which of the following expressions is/are equivalent to 5⋅45t? There may be more than one correct answer. Select all that apply.

5t+1⋅32t, 5t⋅(3t)2⋅5, 5t+1⋅9t

All of the following expressions are equivalent to 5⋅15t. However, only one expression has been rewritten by using exponent property #4, (bc)x=bxcx. Which one is it?

5⋅30t2t

The pH level in a public swimming pool must stay between 7.2 and 8 in order to be safe for swimmers. As part of a routine inspection, the pH of one city pool was monitored for three days. The results of the test are shown in the graph. An even-degree polynomial opening up and passing through the points (0.5, 11), (1.19, 6.15), (2.28, 7.6), (2.77, 7.44), and (3.5, 11). The x-axis is labeled as Time (in days) and the y-axis is labeled as pH level. © 2017 FlipSwitch. Created using GeoGebra. What was the approximate minimum pH recorded during the test?

6.2

Which description describes the potential graph of a system of linear equations with no solution?

A graph of two parallel lines that never intersect.

Tadashi is a landscape architect, and he is designing a pool for a client's backyard. The pool will be twice as long as it is wide, and it will have a 3-foot walkway surrounding it on all sides. Which equation represents the total area that the pool surface and walkway will take up in the backyard?

A(w)=(w+6)(2w+6)

Use the compound interest equation B(t)=500(1.001)12t to answer the questions. A: Which option correctly shows the equation rewritten in the form B(t)=P(1+rn)nt? B: What is the interest rate, r, written as a percentage? Select one answer for question A and one answer for question B.

A: B(t)=500(1+.01212)12t, B: 1.2%

The trajectory of an object is represented by the equation f(x)=−x2+4x+15, where x represents seconds from when it's thrown and f(x) represents the height of the object in feet. Part A: Will the object reach a height of 20 feet? Why or why not? Part B: After how many seconds will the object reach the ground? Select one answer for Part A and one answer for Part B. Make sure your selection for Part A answers both parts of the question correctly.

A: It is not possible for the object to reach 20 feet. The y-coordinate of the maximum is 19, which describes the maximum height of the object. Because 19<20, the object will not reach the height of 20 feet., B: The object will reach the ground in approximately 6.36 seconds.

Lynton runs a rental shop for dirt bikes. He currently charges $60 per bike rental, and he averages 25 rentals per day. Lynton has been experimenting with his rental price, and he knows that for every 5 dollars he raises the rental price, he loses 3 customers per day. Lynton wants to change his rental price in order to maximize his income. Lynton's profit can be estimated with the equation P(x)=(60+5x)(25−3x). Use the profit formula to answer Part A and Part B. Part A: Which answer choice correctly explains approximately how much Lynton should charge per bike rental to maximize his profit? Part B: How much will Lynton earn per day if he maximizes his profit? Select one answer for Part A and one answer for Part B.

A: Lynton should charge approximately $51 per rental. To determine this, Lynton can use P(x) to locate the x-coordinate of the maximum (max), which is −1.83. This indicates that Lynton should decrease his price by 1.83 times 5 dollars, which is about 9 dollars. Thus, Lynton should charge about $51 per rental to maximize profit., B: $1,550.42

Use the following scenario to answer Part A, Part B, and Part C. Janice is keeping track of the height of a bougainvillea bush over time. She tracks its growth for 4 years, at which point the bush has grown 30 feet tall. Janice finds that the height of the bush, h, can be determined using the function h(t)=15t, where t is the time in years since the bush was planted. Part A: What is the independent variable? Part B: What is the dependent variable? Part C: Which graph is scaled appropriately for this situation?

A: The independent variable is the time in years since the bush was planted., B: The dependent variable is the height in feet of the bougainvillea bush.

Use the system {−9x5−5xy3=27−2y4+7x2=3 and its graph to answer the questions. A graph of the system given in the problem. The graph of the function negative 9 x to the 5th, minus 5x y to the third equals 27 is represented by two curves. The first goes down to negative infinity as x approaches negative infinity and goes up to infinity as x approaches zero. The second curve goes down to negative infinity as x approaches zero from the right, comes up to approximately negative two when x is 1, and goes back down to negative infinity as x approaches infinity. The other equation in the system, negative 2 y to the fourth, plus 7 x squared equals 3, is also represented by two curves that appear as parabolas flattened at the vertices. One is open to the left with a vertex at approximately (negative 0.7, 0). The other is open to the right with a vertex at approximately (0.7, 0). © 2017 FlipSwitch. Created using GeoGebra. Part A: What is (are) the solution(s) of the system? Part B: The graph of the system of equations shows only a portion of the graph of the system. Are there other real solutions for this system that are not pictured? Why or why not? Select all correct answers for Part A, and select one answer that correctly answers both questions in Part B.

A: The ordered pair (−1.43,−1.54) is an approximate solution to the system. A: The ordered pair (−1.11,1.29) is an approximate solution to the system. B: No. Due to the end behavior of each equation, it isn't likely that there are any other real solutions for the system.

Use the system {−8xy+73x−2=355y3+x4=14 and its following graph to answer the questions. A graph of the system given in the problem. © 2017 FlipSwitch. Created using GeoGebra. Part A: What is (are) the solution(s) of the system? Part B: Which statement(s) about the system is (are) true? There may be more than one correct answer for both Part A and Part B. Select all correct answers for Part A and Part B.

A: The point (1.41,1.26) is an approximate solution to the system., B: The system consists of continuous equations whose graphs intersect once. , B: The end behavior of each equation suggests that the equation will not intersect outside of the displayed region of the graph.

Clark is shopping for a water fountain for his garden. He wants one that won't damage a light fixture that hangs 10 feet above where he will place the fountain. The Deluxe Fountain features a spigot that shoots a stream of water several feet into the air. The path of the water can be modeled by the function f(x)=−3x2+4x+9. Part A: Will the water from the Deluxe Fountain reach the light fixture? Part B: Which option correctly describes how to find the answer for Part A? Choose one answer for Part A and one answer for Part B.

A: Yes, the water from the Deluxe Fountain will reach the light fixture., B: Find the y-value of the maximum of the path of the water. First, solve for the x-coordinate of the maximum, and then evaluate the function for that value of x. The y-coordinate of the maximum is 10.33. If the water sprays 10.33 feet in the air, it will hit the light fixture.

Which statements about linear programming are true? There is more than one correct answer. Select all correct answers.

Linear programming is a special type of optimization., Linear programming is a method to achieve the best outcome of a situation., Constraints are a component of linear programming problems.

Dr. Valenzuela wants to find the half-life of a radioactive substance. She tried to rewrite the function Q(t)=75⋅53−t in the form Q(t)=Q0(12)th, where t is measured in years, but she got stuck. Her work is shown here. Step 1 Q(t)=75⋅53−t Step 2 Q(t)=75⋅53⋅5−t Step 3 Q(t)=9375⋅(15)t Step 4 Q(t)=9375⋅(15)h(th) Step 5 Q(t)=9375⋅((15)h)(th) A: If (15)h=12, what is h to the nearest hundredth? Use this tool for calculating h to help you. B: Which option correctly shows the function rewritten in the form (t)=Q0(12)th? Select one answer for question A and one answer for question B.

A: h≈0.43, B: Q(t)=9375(12)t0.43

The equation p(t)=2et, where t is time in months, represents a rabbit population that grows continuously. A: What is the equation of the horizontal asymptote? B: What number represents the initial number of rabbits, p(0)? Select one answer for question A and one answer for question B.

A: y=0, B: 2

The equation p(t)=12et+7, where t is time in months, represents a continuously growing population of a frog species. A: What is the equation of the horizontal asymptote? B: What number represents the initial number of frogs, p(0)? C: What value of t should be used when the population is checked after 2.5 years? Select one answer for question A, one answer for question B, and one answer for question C.

A: y=7, B: 19, C: 30

Robin, Magdalena, Selina, and Alex each analyze the system {−16(y+1)−8(5x)=308(y+1)+4(5x)=−16. Which analysis is completely correct?

Magdalena concludes that the system has no solution. First, she notices that the first equation can be simplified. She divides that equation by −2 and simplifies to 8(y+1)+4(5x)=−15. She realizes that the left sides of both equations are equivalent, but the solutions on the right sides are different. Since these are linear equations, This observation means that the equations must have nonintersecting graphs, so there is no solution.

Arline wants to find the solution set for the inequality sin⁡⁡x≥0 on interval [0,2π). Which answer choice correct describes the solution process and the correct solution set of the trigonometric inequality?

Arline begins determining the zeros for sin⁡⁡x at the domain from x=0 to x=2π:sin⁡x=0 at x=0, x=π, and x=2π. Then, she determines the sign of sin⁡⁡x for each interval (0,π) and (π,2π) by picking some values for x in the related intervals and finding the related y-values. She determines that sin⁡⁡x>0 from 0 to π, and sin⁡⁡x<0 from π to 2π. She concludes that sin⁡⁡x≥0 on [0,π].

In a particular science experiment, the number of bacteria is represented by the function p(t)=100et+3, where t is time in days. A: What is the equation of the horizontal asymptote? B: What number represents the initial number of bacteria, p(0)? C: What value of t should be used if you check the population after 60 hours? Select one answer for question A, one answer for question B, and one answer for question C.

B: 103, C: 2.5, A: y=3

Devan is preparing baked goods for a bake sale. Each batch of brownies uses 4 eggs and 2 cups of flour. Each batch of cupcakes uses 3 eggs and 3 cups of flour. Devan has 2 dozen eggs and 20 cups of flour on hand. A single batch of brownies or cupcakes produces 12 servings. Part A: How many batches of brownies and cupcakes should Devan make in order to maximize his number of servings of baked goods? Part B: If Devan maximizes the number of servings he can bring, how many servings of baked goods will he have? Choose one answer for Part A and one answer for Part B.

B: 84 servings, A: Devan should bake 2 batches of brownies and 5 batches of cupcakes.

Dr. Norton wants to find the half-life of a medication for his patients. He tried to rewrite the function Q(t)=100⋅44−t in the form Q(t)=Q0(12)th, where t is measured in hours, but he got stuck. His work is shown here. Step 1 Q(t)=100⋅44−t Step 2 Q(t)=100⋅44⋅4−1 Step 3 Q(t)=25600⋅(14)t Step 4 Q(t)=25600⋅(14)h(th) Step 5 Q(t)=25600⋅((14)h)(th) A: If (14)h=12, what is the value of h to the nearest hundredth? Use this tool for calculating h to help you. B: Which option correctly shows Dr. Norton's function in the form Q(t)=Q0(12)th? Select one answer for question A and one answer for question B.

B: Q(t)=25600⋅(12)t0.50, A: h=0.50

Use the exponential expression 948⋅(256)t8+2 to answer the questions. A: Which option correctly shows the expression rewritten in the form A⋅Bt? B: If this equation represents population growth of a type of bacteria, where t is the number of days, how quickly does the bacteria grow? Select one answer for question A and one answer for question B.

B: The number of bacteria doubles every day. A: Step 1 948⋅(256)t8+2 Step 2 948⋅(256)t8⋅2562 Exponent property #1: bx⋅by=bx+y Step 3 965536⋅(256)t8⋅65536 Evaluate powers. Step 4 9⋅(256)18⋅t Simplify. Step 5 9⋅(25618)t Exponent property #7: (bx)y=bxy Step 6 9⋅(2)t Evaluate powers.

Use the inequality 5cos⁡⁡(2x)≤0 on [−π,π] to answer the following questions. Part A: What are the zeros to the nearest hundredth? Part B: What is the solution set for the inequality? Select all correct answers for Part A, and select one answer for Part B. Use π≅3.14 if needed.

B: [−34π,−14π]∪[14π,34π], A: x=−14π, A: x=34π, A: x=−34π, A: x=14π

Four friends are analyzing the system of equations {7y=15x−57=15x−7y Melinda, Vincent, Paige, and Vivica each reach a different conclusion about the system of equations. Which student's conclusion is correct?

Melinda notices that each equation has the same slope but different y-intercept, and she concludes that the system has no solution.

The surface area of a piece of precious metal is 10 square inches. The surface area of the metal over time can be modeled by the function A(e), where A is the surface area of the metal in inches, and e is the time elapsed in years. As time continues, the metal erodes and loses surface area. The graph of the function A(e) is as follows. Graph of function A of e, which starts at point (0,10) and decreases as it moves in the positive direction of the x-axis. © 2017 FlipSwitch. Created using GeoGebra. Use the graph to answer the following questions. Part A: At what point did the metal have the most surface area? Part B: What does the answer to Part A describe regarding the function?

B: the maximum of the function, A: [0,10]

The decibel level of static interference on a radio station is measured from midnight to 8 a.m. The decibel level of static, S, at any given time can be approximated by the function S(t), where t is the number of hours elapsed since midnight. The function S(t) is graphed as follows. Graph of function S of t, which is a cosine function above the x-axis and fluctuates between about 1.3 and 7.2. The x-axis is labeled © 2017 FlipSwitch. Created using GeoGebra. Use the graph to answer the following questions. Part A: What is the fluctuation of interference, in decibel levels, throughout the morning? Part B: What does Part A describe regarding the function?

B: the range of the function, A: [1.2,7.2]

Alexi enjoys extreme sports, so she decides to bungee jump off of a bridge. It's important that the length of the bungee cord is correct: if it's too long, she will plunge into the water before the cord snaps her upwards. Alexi's height from the water before and after her first bounce can be modeled by the function h(t)=22t2−115t+200, where h is Alexi's height, in feet, above the water, and t is the time, in seconds, from the moment she jumps. Part A: Is it safe for Alexi to bungee jump with this particular cord? Part B: The height Alexi reaches just as she bounces upward is the _[blank]_ of the equation. Choose one answer for Part A and one answer for Part B.

B: y-coordinate of the minimum, A: Yes, Alexi will bounce back at a height of 49.7 feet from the water.

Is f(x)=4x2−3 a one-to-one function on the domain (−∞,∞)?

No, f(x)=4x2−3 is not a one-to-one function on (−∞,∞) because there is an output value that has more than one corresponding input value.

Four friends are analyzing the system of equations {4x+5y=20−2x−52y=−10 Tyler, Jordan, Margot, and Naomi each reach a different conclusion about the system of equations. Which student's conclusion is correct?

Jordan notices that the first equation is equal to the second equation multiplied by −2, and he concludes that the system has infinitely many solutions.

Use substitution to solve the system of equations {25y=210x+53x+y=3 Which statements correctly describe the system? There is more than one correct answer. Select all correct answers.-

The graphs of the equations intersect once., The ordered pair (0,1) is a solution of the system.

Refer to the previous question. How do you know, without graphing, that the system you chose in the previous question has no solution?

The inequalities represent two lines with the same slope and different y-intercepts, which means the lines do not intersect. The line with the greater y-intercept is shaded above, while the line with the lesser y-intercept is shaded below. This means the shading never overlaps, so the inequalities share no points in common.

Julie is participating in a fundraiser. For every 100 items she sells, she earns one of 10 unique prizes. Which quantity represents the independent variable in this context?

The number of items Julie sells.

Peter runs a catering company. Cheryl books his company to serve her guests at a party. Guests are sent invitations and are asked to respond if they plan to attend Cheryl's party. The number of staff Peter schedules to work the party is determined by the number of guests who reply to confirm their attendance. Which quantity represents the dependent variable in this context?

The number of staff Peter will schedule.

Use the system {2x4−3y3=10−4x3−5xy3=−7 and its graph to answer the questions. A graph of the system given in the problem. © 2017 FlipSwitch. Created using GeoGebra. What is (are) the solution(s) of the system?

The ordered pair (1.42,−0.86) is an approximate solution to the system., The ordered pair (−0.45,−1.49) is an approximate solution to the system., The ordered pair (−1.12,−1.31) is an approximate solution to the system.

Use substitution to solve the system of equations {5y−20x2=−15y2−16x4=−15 Which statements correctly describe the system? There is more than one correct answer. Select all correct answers.

The point (1,1) is a solution of the system., The point (−1,1) is a solution of the system.

A magazine publisher produces magazines about different science topics. Two of the publisher's magazines are Cool Space Stuff and Mesmerizing Marine Biology. The publisher expects a monthly demand of at least 2000 copies of Cool Space Stuff and at least 1400 copies of Mesmerizing Marine Biology. The publisher is able to print no more than 2500 copies of Cool Space Stuff and 3400 copies of Mesmerizing Marine Biology monthly. However, the publisher must print at least 3800 magazines (of either title) every month to meet the terms of his printing contract. If Cool Space Stuff currently produces a $5 profit for each copy sold, and Mesmerizing Marine Biology produces a $1 loss for each copy sold, how many magazines of each title should the publisher print in order to maximize monthly profit?

The publisher should print 2500 copies of Cool Space Stuff and 1400 copies of Mesmerizing Marine Biology each month.

Use a graphing calculator, or another piece of technology, to graph the equations of the system {x+1y−4−9xy−1=410x+3y=1 Which statements correctly describe the system? There is more than one correct answer. Select all correct answers.

The system consists of equations whose graphs never intersect., The system has no real solutions.

Use substitution to solve the system of equations {7c=73d−322c+1=28+6d Which statements correctly describe the system? There is more than one correct answer. Select all correct answers. Note that ordered pairs are in the order (c,d).

The system has no solution., All values of c and d will result in false statements.

Use the following system of equations to answer the question. {2a+1a+3b−2=52a−42−7bb−5=6 Which observation about the system of equations is accurate?

The system is potentially solvable because there is an equal number of equations and unknowns.

If you graph the equations you chose in the previous question, what would the x- and y-axes represent?

The x-axis would represent the number of pounds of chocolate candy, while the y-axis would represent the number of pounds of fruit-flavored candy.

The following graph shows the inequality 7≤x+4. A graph of the given inequality. A closed circle is on a number line at 3. The number line is shaded to the right of the circle.

[3,∞)

Examine the equation ex=(x−3)(y+4)(z−5). Which option correctly isolates y?

y=e2x(x−3)(z−5)−4

Which system of inequalities has no solution?

{y>34x+4 y<34x−5

Which properties of exponents have been used to rewrite the expression 62t as (12t2t)2? There may be more than one correct answer. Select all that apply.

bxcx=(bc)x, (bx)y=bxy

Eliza is at least twice as old as her friend's younger sister, Wendy. Which inequality correctly represents Eliza's age, e, compared with Wendy's age, w?

e≥2w

What does the notation f−1 mean?

f−1 is the inverse of the function f.

Use the following graph of the function f(x)=−3x2+2x+6 to fill in the blanks. The graph of the function f of x as described in the problem. It is a downward-opening parabola. © 2017 FlipSwitch. Created using GeoGebra. Using the ___[blank 1]___, you can tell that the function f(x) ___[blank 2]___ one-to-one because ___[blank 3]___ the graph of the function in ___[blank 4]___. Match each blank to the word or phrase that correctly fills in that blank in the previous sentence.

horizontal line test is not there is a horizontal line that intersects more than one place

Jimmy, Veronica, and Ella are collecting signatures for a petition. Jimmy collects j signatures per hour and Veronica collects v signatures per hour. Ella collects e signatures per hour, which is more than the hourly total for Jimmy and Veronica combined. Which inequality correctly compares the number of signatures collected by Jimmy and Veronica to the number of signatures collected by Ella after x hours?

jx+vx<ex

A local high school wants to enclose their practice field with a fence. The school has purchased 1,000 feet of fencing for the project. Determine the dimensions of the fence that will enclose the largest area. This problem is an example of a(n) _____ problem.

optimization

Minh is building a wooden box to hold all of her dinosaur figurines. She wants the base of the box to be in the shape of a square, and she has a total of 1 square meter of wood to use when making the box. What dimensions of the box will maximize the volume? This problem is an example of a(n) _____ problem. Select the word that correctly fills in the blank in the previous sentence.

optimization

Sonja's Bakery sells cookies for $0.50 each and cupcakes for $1.75 each. Which equation for r correctly describes the revenue Sonja makes if she sells x cookies and y cupcakes?

r=0.50x+1.75y

Le Fromage is an artisanal cheese shop in Paris, Arkansas. They sell Manchego for $2.12 per ounce, and Parmigiano Reggiano for $1.77 per ounce. Which equation for r correctly describes the revenue Le Fromage makes if it sells x ounces of Manchego and y ounces of Parmigiano Reggiano?

r=2.12x+1.77y

raise to the power n take sin⁡x multiply add subtract divide

raise to the power 1/n take arcsin x divide subtract add multiply

Perry has a piggy bank with q quarters, n nickels, d dimes, and p pennies. Which equation for t correctly represents the total value of the change in Perry's piggy bank?

t=0.25q+.05n+.10d+.01p

Robert and Natalie are raking leaves in their backyard. For every 50 pounds of leaves they rake, they create another leaf pile. What is the independent variable in this context?

the amount of leaves in pounds

In which systems of inequalities is the point (2,4) a member of the solution set of the system? There is more than one correct answer. Select all that apply.

{y≥2xy≤−12x+5 A graph of the given system of inequalities. The inequality y is greater than or equal to 2x is shaded in red with a solid line. The inequality y is less than or equal to negative one-half x plus 5 is shaded in blue with a solid line. The area of overlap is shaded in purple. The point (2, 4) appears at the intersection of the two lines. © 2017 FlipSwitch. Created using GeoGebra. {y≥3x−5y<−23x+6 A graph of the given system of inequalities. The inequality y is greater than or equal to 3x minus 5 is shaded in red with a solid line. The inequality y is less than negative two-thirds x plus 6 is shaded in blue with a dotted line. The area of overlap is shaded in purple. The point (2, 4) appears in the area shaded purple. © 2017 FlipSwitch. Created using GeoGebra.

Consider the function f(x)=−x2+6 on the domain [0,∞). Use the range of f(x) to determine the domain of f−1(x). What is the domain of f−1(x)?

−∞<x≤6