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Kaplan

2018 Version

Powers and Roots

Pages 320-321

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Practice 2, Part A

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Practice 2, Part B

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150

1

5

0

Your screen will show 12.24744871 which you will round to 12.2. Your answer is 12.2.

Question #15

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242

2

4

2

Your screen will show 15.55634919 which you will round to 15.6. Your answer is 15.6.

Question #19

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57

5

7

Your screen will show 7.54983445 which you will round to 7.5. Your answer is 7.5.

Question #21

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536

3

6

Your screen will show 23.15167381 which you will round to 23.2. Your answer is 23.2.

Question #22

5

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23. 1120 = 1 because any number raised to the zero power

equals 1.

24. (-2)8 =

(-2)(-2) = 4

(4)(-2) = -8

(-8)(-2) = 16

(16)(-2) = -32

(-32)(-2) = 64

(64)(-2) = -128

(-128)(-2) = 256

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Length

Width

Height

6

6

6

63 (C) is your answer.

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Which of the following expressions has the least value?

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  1. 3-3

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B. 40

1

C. 41

4

D. 2-4

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Correct Answer: (A)