Math 2 ignitia

|−61| the distance from zero to −61 −(−61) the opposite of −61

Choose all of the expressions that are equal to 61. |−61| the distance from zero to −61 the opposite of 61 −(−61) the opposite of −61 −|−61| −|61|

the opposite of nine −|9| −|−9|

Choose all of the expressions that are equal to −9. the opposite of nine −|9| |−9| −|−9| −(−9) the distance from zero to nine

49

Evaluate the expression: -(-49) 50 49 -49 -48

-18

Evaluate the following expression: -2|9|. 18 -11 -18 11

9/20

Find an equivalent fraction for the decimal number. 0.45 4 5/10 4 1/2 9/20 5/10

3/5

Find an equivalent fraction for the decimal number. Be sure that your answer is in lowest terms before typing in your answer. 0.6 is ____________

16 3/10

Find an equivalent mixed number for the decimal number. 16.3 16 3/100 16 3/10 1 163/100 1 63/100

2 16/25

Find an equivalent mixed number for the decimal number. 2.64 2 32/100 2 16/25 2 64/50 2 37/50

7

How many units away is 1 from -6 on a number line? 7 -5 5 -7

a formula

I = prt is an example of _____. an expression a constant a variable a formula

mn

If m = 8 and n = 4, all of the following represent the same value except _____. 1/2 m n/1 m-n mn

the opposite of 15

If you move from zero to 15 on the number line, you are representing all of the following except _____. the opposite of −15 the opposite of 15 the absolute value of 15 the distance between zero and 15

a variable

K is an example of _____. a constant an equation a formula a variable

a variable

Seven is not an example of _____. an expression a term a variable a constant__.

12 in. 2

The area of a triangle is found using the following formula: A=1/2 bh If b = 3 in. and h = 8 in., what is the area of the triangle? 12 in. 2 48 in. 2 24 in. 2 5.5 in. 2

50

The formula commonly used to find simple interest is i = prt. What is the simple interest if p = 1000, r = 0.05, and t = 1? 500 1050 1001.05 50

0.125

Use long division to convert the rational number 1/8 to its equivalent decimal form. 0.125 1.25 2.5 0.25

If r = 3 and t = 5, then d = 8.

Using the formula d = r t, which of the following statements is not true? If r = 5 and t = 3, then d = 15. If r = 3 and t = 5, then d = 8. If r = 3 and t = 4, then d = 12. If r = 4 and t = 2, then d = 8.

|-37| = 37

Which of the following expressions is correct? |-37| = 37 -|37| = 37 |-37| = -37 -|-37| = 37

-|12| = 12

Which of the following expressions is incorrect? |-12| = 12 |12| = 12 -|-12| = -12 -|12| = 12

−(−45)

Which of the following is equal to the opposite of −45? −|45| −(−45) −|−45| −45

pie

Which of the following numbers is irrational? Select all that apply. 8/9 pie 2.3 repeating 1.5

7.6 22/7 1.01 repeating

Which of the following numbers is rational? Select all that apply. 7.6 22/7 pie 1.01 repeating

the opposite of 9

Which of the following statements does not represent the same value as the others? the absolute value of negative 9 the absolute value of 9 the distance between 0 and −9 the opposite of 9

repeating decimal

a decimal whose digits to the right of the decimal point repeating indefinitely

vinculum

a horizontal bar used in mathematical notation; in fractions, it is the bar that separates the numerator from the denominator; in repeating decimals, it indicates a group of repeating numbers

Variable

a letter or symbol used to represent an unknown number

term

a number or a variable, or the product of a number and variable(s)

rational number

a number that can be written as a ratio in fraction form

irrational number

a number that, when in decimal form, does not terminate or repeat

constant

a number; a term containing no variables

ellipsis

a set of three dots at the end of a number used to indicate that the number will infinitely continue in the same pattern

formula

an equation that uses variables to state a rule

>

greater than

≥

greater than or equal to

<

less than

≤

less than or equal to

≠

not equal to

expression

one term or multiple terms connected by an addition or subtraction sign

absolute value

the distance from zero on the number line

distance

the number of units between two numbers or points, regardless of direction

opposite numbers

two numbers that are the same distance from zero on the number line but in opposite directions

an expression

6 + x is an example of _____. a formula an expression a constant a variable

0.6 repeating 2/3 0.66 repeating

6/9 Find an equivalent fraction for the decimal number. Be sure that your answer is in lowest terms before typing in your answer. 6/9 0.6 repeating 2/3 0.'66'7 0.66 repeating

terminating decimal

A decimal that ends

4 + y

All of the following are equivalent except _____. (4)( y) 4 + y 4 · y 4 y

|−93| = −93

All of the following are true statements except _____. |−93| = 93 |93| = 93 |−93| = −93 −|93| = −93

− N

All of the following expressions are equal to N except _____. − N | N| −(− N) |− N|

point D

Answer this question based on the number line shown. The distance from a point to point C is 1, and the distance from that same point to point B is 4. The point must be _____. point A between D and A point D between C and A

irrational numbers

Any number with a non-repeating and non-terminating decimal is ___________ number.