Unit Test — Unit test Answers

25 verified answers
1
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Which property is used in the problem below?

Question illustration
A
the associative property
B
the commutative property
C
the distributive property
D
the additive identity property
2
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Which property is shown in the problem below?

Question illustration
A
the associative property
B
the commutative property
C
the distributive property
D
the division property
3

Which operation means “split evenly”?

A
addition
B
subtraction
C
multiplication
D
division
4

Which algebraic expression represents the phrase “fourteen increased by a number”?

A
14 + y
B
14y
C
StartFraction 14 over y EndFraction
Option C
D
14 minus y
Option D
5

The greatest common factor of each term in the expression is 4x. Which choice shows the expression written as a product?

Question illustration
A
4 x (5 x minus 4 x y)
Option A
B
4 x (5 minus 4 y)
Option B
C
4 x (5 minus 16 x y)
Option C
D
4 x (5 x minus 16 x y)
Option D
8

What is the difference ?

Question illustration
A
x minus 4
Option A
B
x minus 2
Option B
C
x + 2
Option C
D
x + 4
Option D
10

Which expression is equivalent to (18x + 9k) + (2x + 6k)?

A
16 x + 3 k
Option A
B
20 x + 15 k
Option B
C
20 x + 16 k
Option C
D
36 x + 54 k
Option D
11

What will be the result of substituting 2 for x in both expressions below?

Question illustration
A
Both expressions equal 5 when substituting 2 for x because the expressions are equivalent.
B
Both expressions equal 6 when substituting 2 for x because the expressions are equivalent.
C
One expression equals 5 when substituting 2 for x, and the other equals 2 because the expressions are not equivalent.
D
One expression equals 6 when substituting 2 for x, and the other equals 2 because the expressions are not equivalent.
12

Which shows all the like terms in the expression?

Question illustration
A
–3 and 1; 4x and –3
B
–3 and 1; 4x and 7x
C
4x and 1; 7x and –3
D
4x and –3; 1 and 7x
14

Which phrase describes the algebraic expression 6x?

A
the quotient of 6 and a number
B
the difference of 6 and a number
C
the product of 6 and a number
D
the sum of 6 and a number
15

Justin is evaluating the expression , when is 7.9. What was Justin’s error?

Question illustration
A
Justin should have multiplied 12.5 and 7.9 first.
B
Justin should have added 12.5 and 7.9 first.
C
Justin should have multiplied 3.8 and 7.9 first.
D
Justin should have added 3.8 and 7.9 first.
16

Which phrase describes the algebraic expression ?

Question illustration
A
the product of 5 and 2 more than a number
B
the quotient of 5 and 2
C
5 times the difference of a number and 2
D
2 less than 5 times a number
18

Which statements about the factors of the terms in the expression are true? Select three options.

Question illustration
A
The factors common to 12x and 18xy are 1, 2, 3, 6, x, and y.
B
The factors common to 12x and 18xy are 1, 2, 3, 6, and x.
C
The factors common to 12x and 24y are 1, 2, 3, 4, 6, and 12.
D
The GCF of the expression is 6xy.
E
The GCF of the expression is 6.
19

What is simplified?

Question illustration
A
mc010-2.jpg
Option A
B
mc010-3.jpg
Option B
C
mc010-4.jpg
Option C
D
mc010-5.jpg
Option D
20

What is the sum ?

Question illustration
A
Three-fifths x + StartFraction 1 over 8 EndFraction
Option A
B
Three-fifths x + StartFraction 3 over 8 EndFraction
Option B
C
Three-fifths x + StartFraction 5 over 8 EndFraction
Option C
D
Three-fifths x + StartFraction 7 over 8 EndFraction
Option D

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