AnswersAR-Algebra II BUnit Test

Unit Test — Unit test Answers

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What is the range of the function

Question illustration
A
all real numbers less than –1
B
all real numbers greater than –1
C
all real numbers less than 1
D
all real numbers greater than 1
22
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A radioactive element has a half-life of six days. What is the approximate decay rate of the element after the first day?

A
0.9%
B
1.5%
C
8.3%
D
10.9%
23

What is the true solution to the logarithmic equation below?

Question illustration
A
x = 0
Option A
B
x = two-ninths
Option B
C
x = four-ninths
Option C
D
x = two-thirds
Option D
24

The formula for determining the frequency, f, of a note on a piano is , where h is the number of half-steps from the A above middle C on the keyboard. A note is six half-steps away from the A above middle C. The frequency of the A above middle C is 440 Hz. How much greater is the frequency of the new note compared with the frequency of the A above middle C?

Question illustration
A
29.3%
B
41.4%
C
70.7%
D
182.3%
25

What is the true solution to the equation below?

Question illustration
A
x = 2
Option A
B
x = 4
Option B
C
x = 8
Option C
D
x = 64
Option D

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Unit Test — Unit test Answers — AR-Algebra II B