ASVAB Math Knowledge Practice Test 579266 Results

Your Results Global Average
Questions 5 5
Correct 0 3.46
Score 0% 69%

Review

1

What is 9a - 8a?

79% Answer Correctly
a2
1a
72a
17a2
Solution

To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.

9a - 8a = 1a

2

The dimensions of this trapezoid are a = 4, b = 7, c = 5, d = 4, and h = 2. What is the area?

50% Answer Correctly
11
13
16
18
Solution

The area of a trapezoid is one-half the sum of the lengths of the parallel sides multiplied by the height:

a = ½(b + d)(h)
a = ½(7 + 4)(2)
a = ½(11)(2)
a = ½(22) = \( \frac{22}{2} \)
a = 11

3

The dimensions of this cube are height (h) = 6, length (l) = 5, and width (w) = 4. What is the surface area?

51% Answer Correctly
112
142
148
228
Solution

The surface area of a cube is (2 x length x width) + (2 x width x height) + (2 x length x height):

sa = 2lw + 2wh + 2lh
sa = (2 x 5 x 4) + (2 x 4 x 6) + (2 x 5 x 6)
sa = (40) + (48) + (60)
sa = 148

4

Which of the following is not a part of PEMDAS, the acronym for math order of operations?

88% Answer Correctly

division

pairs

addition

exponents
Solution

When solving an equation with two variables, 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.)

5

Breaking apart a quadratic expression into a pair of binomials is called:

74% Answer Correctly

squaring

deconstructing

factoring

normalizing
Solution

To factor a quadratic expression, apply the FOIL (First, Outside, Inside, Last) method in reverse.