ASVAB Math Knowledge Practice Test 186765 Results

	Your Results	Global Average
Questions	5	5
Correct	0	3.15
Score	0%	63%

Review

If a = 2, b = 6, c = 3, and d = 2, what is the perimeter of this quadrilateral?

88% Answer Correctly

	15
	18
	13
	26

Solution

Perimeter is equal to the sum of the four sides:

p = a + b + c + d
p = 2 + 6 + 3 + 2
p = 13

The endpoints of this line segment are at (-2, -5) and (2, 3). What is the slope of this line?

46% Answer Correctly

	2\(\frac{1}{2}\)
	-2
	1
	2

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, -5) and (2, 3) so the slope becomes:

m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(3.0) - (-5.0)}{(2) - (-2)} \) = \( \frac{8}{4} \)
m = 2

A trapezoid is a quadrilateral with one set of __________ sides.

70% Answer Correctly

	equal angle
	parallel
	right angle
	equal length

Solution

A trapezoid is a quadrilateral with one set of parallel sides.

Which of the following is not required to define the slope-intercept equation for a line?

42% Answer Correctly

	y-intercept
	slope
	x-intercept
	\({\Delta y \over \Delta x}\)

Solution

A line on the coordinate grid can be defined by a slope-intercept equation: y = mx + b. For a given value of x, the value of y can be determined given the slope (m) and y-intercept (b) of the line. The slope of a line is change in y over change in x, \({\Delta y \over \Delta x}\), and the y-intercept is the y-coordinate where the line crosses the vertical y-axis.

Which of the following statements about math operations is incorrect?

71% Answer Correctly

	all of these statements are correct
	you can add monomials that have the same variable and the same exponent
	you can multiply monomials that have different variables and different exponents
	you can subtract monomials that have the same variable and the same exponent

Solution

You can only add or subtract monomials that have the same variable and the same exponent. For example, 2a + 4a = 6a and 4a² - a² = 3a² but 2a + 4b and 7a - 3b cannot be combined. However, you can multiply and divide monomials with unlike terms. For example, 2a x 6b = 12ab.