ASVAB Arithmetic Reasoning Practice Test 281325 Results

Your Results Global Average
Questions 5 5
Correct 0 2.85
Score 0% 57%

Review

1

What is \( 6 \)\( \sqrt{175} \) + \( 3 \)\( \sqrt{7} \)

35% Answer Correctly
33\( \sqrt{7} \)
9\( \sqrt{1225} \)
18\( \sqrt{1225} \)
18\( \sqrt{7} \)

Solution

To add these radicals together their radicands must be the same:

6\( \sqrt{175} \) + 3\( \sqrt{7} \)
6\( \sqrt{25 \times 7} \) + 3\( \sqrt{7} \)
6\( \sqrt{5^2 \times 7} \) + 3\( \sqrt{7} \)
(6)(5)\( \sqrt{7} \) + 3\( \sqrt{7} \)
30\( \sqrt{7} \) + 3\( \sqrt{7} \)

Now that the radicands are identical, you can add them together:

30\( \sqrt{7} \) + 3\( \sqrt{7} \)
(30 + 3)\( \sqrt{7} \)
33\( \sqrt{7} \)


2

\({b + c \over a} = {b \over a} + {c \over a}\) defines which of the following?

55% Answer Correctly

distributive property for multiplication

distributive property for division

commutative property for division

commutative property for multiplication


Solution

The distributive property for division helps in solving expressions like \({b + c \over a}\). It specifies that the result of dividing a fraction with multiple terms in the numerator and one term in the denominator can be obtained by dividing each term individually and then totaling the results: \({b + c \over a} = {b \over a} + {c \over a}\). For example, \({a^3 + 6a^2 \over a^2} = {a^3 \over a^2} + {6a^2 \over a^2} = a + 6\).


3

What is \( \sqrt{\frac{25}{16}} \)?

70% Answer Correctly
\(\frac{4}{5}\)
2
1\(\frac{1}{4}\)
\(\frac{2}{3}\)

Solution

To take the square root of a fraction, break the fraction into two separate roots then calculate the square root of the numerator and denominator separately:

\( \sqrt{\frac{25}{16}} \)
\( \frac{\sqrt{25}}{\sqrt{16}} \)
\( \frac{\sqrt{5^2}}{\sqrt{4^2}} \)
\( \frac{5}{4} \)
1\(\frac{1}{4}\)


4

Which of the following statements about exponents is false?

47% Answer Correctly

b1 = b

b0 = 1

b1 = 1

all of these are false


Solution

A number with an exponent (be) consists of a base (b) raised to a power (e). The exponent indicates the number of times that the base is multiplied by itself. A base with an exponent of 1 equals the base (b1 = b) and a base with an exponent of 0 equals 1 ( (b0 = 1).


5

What is (y3)4?

80% Answer Correctly
y12
y
y-1
4y3

Solution

To raise a term with an exponent to another exponent, retain the base and multiply the exponents:

(y3)4
y(3 * 4)
y12