ASVAB Math Knowledge Practice Test 974528 Results

Your Results Global Average
Questions 5 5
Correct 0 3.44
Score 0% 69%

Review

1

Simplify 8a x 8b.

86% Answer Correctly
64\( \frac{a}{b} \)
64\( \frac{b}{a} \)
64a2b2
64ab

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.

8a x 8b = (8 x 8) (a x b) = 64ab


2

Solve for c:
-2c + 6 > \( \frac{c}{-1} \)

44% Answer Correctly
c > \(\frac{36}{55}\)
c > \(\frac{3}{5}\)
c > 6
c > 5\(\frac{1}{3}\)

Solution

To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the > sign and the answer on the other.

-2c + 6 > \( \frac{c}{-1} \)
-1 x (-2c + 6) > c
(-1 x -2c) + (-1 x 6) > c
2c - 6 > c
2c - 6 - c > 0
2c - c > 6
c > 6
c > \( \frac{6}{1} \)
c > 6


3

To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?

83% Answer Correctly

First

Odd

Inside

Last


Solution

To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses.


4

Simplify (4a)(7ab) + (5a2)(4b).

65% Answer Correctly
8a2b
8ab2
99ab2
48a2b

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.

(4a)(7ab) + (5a2)(4b)
(4 x 7)(a x a x b) + (5 x 4)(a2 x b)
(28)(a1+1 x b) + (20)(a2b)
28a2b + 20a2b
48a2b


5

If side a = 8, side b = 9, what is the length of the hypotenuse of this right triangle?

64% Answer Correctly
\( \sqrt{145} \)
\( \sqrt{117} \)
\( \sqrt{58} \)
\( \sqrt{113} \)

Solution

According to the Pythagorean theorem, the hypotenuse squared is equal to the sum of the two perpendicular sides squared:

c2 = a2 + b2
c2 = 82 + 92
c2 = 64 + 81
c2 = 145
c = \( \sqrt{145} \)