ASVAB Math Knowledge Practice Test 376898 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.54
Score	0%	71%

Review

Simplify (7a)(6ab) - (4a²)(2b).

62% Answer Correctly

	78ab²
	50ab²
	34a²b
	50a²b

Solution

To multiply monomials, multiply the coefficients (the numbers that come before the variables) of each term, add the exponents of like variables, and multiply the different variables together.

(7a)(6ab) - (4a²)(2b)
(7 x 6)(a x a x b) - (4 x 2)(a² x b)
(42)(a¹⁺¹ x b) - (8)(a²b)
42a²b - 8a²b
34a²b

If AD = 15 and BD = 7, AB = ?

76% Answer Correctly

	16
	4
	7
	8

Solution

The entire length of this line is represented by AD which is AB + BD:

AD = AB + BD

Solving for AB:

AB = AD - BD
AB = 15 - 7
AB = 8

If the base of this triangle is 3 and the height is 2, what is the area?

58% Answer Correctly

	12\(\frac{1}{2}\)
	3
	56
	24

Solution

The area of a triangle is equal to ½ base x height:

a = ½bh
a = ½ x 3 x 2 = \( \frac{6}{2} \) = 3

A right angle measures:

90% Answer Correctly

	90°
	180°
	360°
	45°

Solution

A right angle measures 90 degrees and is the intersection of two perpendicular lines. In diagrams, a right angle is indicated by a small box completing a square with the perpendicular lines.

If a = -7 and y = 1, what is the value of 2a(a - y)?

68% Answer Correctly

	100
	-200
	112
	560

Solution

To solve this equation, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)

2a(a - y)
2(-7)(-7 - 1)
2(-7)(-8)
(-14)(-8)
112