NAME DATE PERIOD 6-4 Skills Practice

NAME

DATE

PERIOD

6-4 Skills Practice

nth Roots

Use a calculator to approximate each value to three decimal places.

1. 230 15.166

2. 38 6.164

3. -152 -12.329

4. 5.6 2.366

5. 3 88 4.448

6. 3 -222 -6.055

7. - 4 0.34 -0.764

8. 5 500 3.466

Simplify.

9. ?81 ?9 11. (-5)2 5 13. 0.36 0.6 15. 3 -8 -2 17. 3 0.064 0.4 19. 4 81 3 21. 3 125c3 5c 23. 3 -27a6 -3a2 25. - 100p4t2 -10p 2t 27. (-3c)4 9c2

10. 144 12 12. -52 not a real number

14. - -49 - -23

16. - 3 27 -3 18. 5 32 2 20. y2 y 22. 64x6 8 x3 24. m8p4 m4p2 26. 4 16w4v8 2w v 2 28. (a + b)2 a + b

Copyright ? Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

Lesson 6-4

Chapter 6

27

Glencoe Algebra 2

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