ANSWER: 6-4 nth Roots
Use a calculator to approximate each value to
three decimal places.
22. ANSWER: 10. ANSWER: 2.903
24. Simplify.
ANSWER: 12. ANSWER: 26. ANSWER: 14. ANSWER: 28. ANSWER: 16. ANSWER: 30. ANSWER: 18. ANSWER: 32. 20. ANSWER: ANSWER: eSolutions Manual - Powered by Cognero
22. 34. ANSWER: Page 1
ANSWER: ANSWER: 5.518
6-4 nth Roots
34. 44. ANSWER: ANSWER: 20.733
36. SHIPPING An online book store wants to increase
the size of the boxes it uses to ship orders. The new
volume N is equal to the old volume V times the scale
factor F cubed, or
. What is the scale
factor if the old volume was 0.8 cubic feet and the
new volume is 21.6 cubic feet?
46. GEOMETRY The radius r of a sphere with volume
V can be found using the formula
.
ANSWER: 3
Use a calculator to approximate each value to
three decimal places.
3
a. Determine the radius for volumes of 1000 cm ,
3
3
8000 cm , and 64,000 cm .
38. b. How does the volume of the sphere change if the
radius is doubled? Explain.
ANSWER: 9.592
ANSWER: a. (1000, 6.2), (8000, 12.4), (64,000, 24.8)
40. b. Sample answer: As r doubles, the volume
ANSWER: increases by a factor of 2 or 8.
3
0.656
Simplify.
42. 48. ANSWER: ANSWER: 5.518
50. 44. ANSWER: ANSWER: 20.733
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46. GEOMETRY The radius r of a sphere with volume
52. Page 2
ANSWER: 6-4 nth Roots
50. ANSWER: 52. ANSWER: 54. ANSWER: –(y – z)
3
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