ASVAB Math Knowledge Practice Test 603430 Results

Your Results Global Average
Questions 5 5
Correct 0 3.38
Score 0% 68%

Review

1

Which of the following expressions contains exactly two terms?

82% Answer Correctly

binomial

quadratic

monomial

polynomial


Solution

A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.


2

Solve for x:
x2 - 2x - 15 = 0

58% Answer Correctly
6 or -1
-3 or 5
-2 or -4
5 or -6

Solution

The first step to solve a quadratic equation that's set to zero is to factor the quadratic equation:

x2 - 2x - 15 = 0
(x + 3)(x - 5) = 0

For this expression to be true, the left side of the expression must equal zero. Therefore, either (x + 3) or (x - 5) must equal zero:

If (x + 3) = 0, x must equal -3
If (x - 5) = 0, x must equal 5

So the solution is that x = -3 or 5


3

The endpoints of this line segment are at (-2, -6) and (2, 2). What is the slope of this line?

46% Answer Correctly
2
-1\(\frac{1}{2}\)
-3
-1

Solution

The slope of this line is the change in y divided by the change in x. The endpoints of this line segment are at (-2, -6) and (2, 2) so the slope becomes:

m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(2.0) - (-6.0)}{(2) - (-2)} \) = \( \frac{8}{4} \)
m = 2


4

If the area of this square is 49, what is the length of one of the diagonals?

68% Answer Correctly
4\( \sqrt{2} \)
8\( \sqrt{2} \)
7\( \sqrt{2} \)
3\( \sqrt{2} \)

Solution

To find the diagonal we need to know the length of one of the square's sides. We know the area and the area of a square is the length of one side squared:

a = s2

so the length of one side of the square is:

s = \( \sqrt{a} \) = \( \sqrt{49} \) = 7

The Pythagorean theorem defines the square of the hypotenuse (diagonal) of a triangle with a right angle as the sum of the squares of the other two sides:

c2 = a2 + b2
c2 = 72 + 72
c2 = 98
c = \( \sqrt{98} \) = \( \sqrt{49 x 2} \) = \( \sqrt{49} \) \( \sqrt{2} \)
c = 7\( \sqrt{2} \)


5

The dimensions of this cube are height (h) = 6, length (l) = 8, and width (w) = 1. What is the volume?

83% Answer Correctly
576
70
162
48

Solution

The volume of a cube is height x length x width:

v = h x l x w
v = 6 x 8 x 1
v = 48