Abeka 9th Grade Algebra 1 Test 1
Write this statement algebraically: The circumference C of a circle is equal to the product of π and the diameter d.
C = πd
Write this statement algebraically: The gross profit (GP) of an item equals the selling price (p) minus the cost of 2 dollars for producing the item.
GP = p-2
Write this statement algebraically: The perimeter of a rectangle is twice the sum of its length l and width w.
P = 2(l+w) OR P = 2l + 2w
Which of the following is true for multiplying two signed numbers with opposite signs?
The product is negative.
a number's distance from zero is it's
absolute value
x + (y + z ) = (x + y ) + z
associative property
In the expression 6x² + 5, which of the following correctly identifies the 6?
coefficient
r (s + t ) = (s + t )r
commutative property
(a + b )c = ac + bc
distributive property
3/5(2/2)=3/5
identity property
3x + 0 = 3x
identity property
What type of number is √23?
irrational
Write this statement algebraically: The length l of a rectangle is equal to its area A divided by its width w.
l = A/w
Find the value of A in the formula A = 1/2h (a + b ) when h = 6 in., a = 12 in., and b = 8 in.
see me to check answer
If a = -2, find the value of the expression |2a + 5|.
see me to check answer
If x = -3 and y = 5, find the value of the expression 2x² + 4y − 5.
see me to check answer
Phil drove for 5 hours at 65 miles per hour. How far did he drive if d = rt ?
see me to check answer
Simplify and reduce fractions (if any) to lowest terms: -3²/2³ + 1
see me to check answer
Simplify and reduce fractions (if any) to lowest terms: 3x + 2y + 5x − y
see me to check answer
Simplify and reduce fractions (if any) to lowest terms: 4 + 3² ÷ (-1)(4)(-2) − 1
see me to check answer
Simplify and reduce fractions (if any) to lowest terms: 5/12 + 1/12 − 1/4
see me to check answer
Simplify and reduce fractions (if any) to lowest terms: 8mn + 10 − 2(3mn − 1) + 2mn − 5 + 8
see me to check answer
Simplify and reduce fractions (if any) to lowest terms: a + [a + b − a − (2a − b)]
see me to check answer
quantities combined by only addition or subtraction are called
terms
an unknown value is a
variable
natural numbers and zero are
whole numbers
Write this statement algebraically: The sum of x and 3 is divided by 2
x + 3/2 OR (x + 3) ÷ 2
Which notation best represents the relationship between the two numbers plotted on the number line below? ---------- -1 ----------------------- 5 ------------------------
-1 < 5
What is the opposite of 6?
-6
Write this statement algebraically: Half of g multiplied by t squared is equal to d
1/2gt² = d
How many terms are in the expression 3x + 5a/2y?
2
In the expression [1 + 7 * (2 − 9)] ÷ 3 + 12, which of the following operations is done first?
2 − 9
Write this statement algebraically: A piece of yarn 29 inches long is cut into two parts. If one of the resulting pieces is m inches long, represent the length of the other piece.
29 - m
In the expression 2y − 7z³, which of the following is an exponent?
3
