NAME DATE PERIOD Lesson 7 Homework Practice

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Lesson 7 Homework Practice

The Real Number System

Name all sets of numbers to which each real number belongs. Write natural, whole, integer, rational, or irrational.

1. 15 natural, whole, integer, rational

4. -13 rational

2. -41 integer, rational 5. 0.212121. . . rational

3. -14 rational 6. 8 irrational

7. 45 irrational 10. 2.31 rational

8. -396

natural, whole, integer, rational

11. 45.6 rational

9. - -278 integer, rational 12. 0.090090009. . . irrational

Determine whether each statement is always, sometimes, or never true. 13. A decimal number is an irrational number. sometimes

14. An integer is a whole number. sometimes

15. A whole number is an integer. always

16. A negative integer is a whole number. never

Replace each with < , >, or = to make a true sentence.

17. 3.2 9.5 >

18. 1 -12 3 <

20. 7.84 2.8 =

21. 1 -34 3.0625 =

Order each set of numbers from least to greatest. 23. 49, 6.-9-1, 7 -18, -125 6.-91-, 49, 7 -18, - 125

24. 4 -13, 43, -132, 4.13 - 132, 4.13, 4 -13, 43 25. -2, -1.5, -1 -180, -6 - 6, -2, -1 - 180, -1.5

Solve each equation. Round to the nearest tenth, if necessary.

26. h2 = 361 19, -19

27. k2 = 10.24 3.2, -3.2

19. 17 4.1 > 22. 3.67 12 >

28. c2 = 111 10.5, -10.5

29. 729 = t3 9

30. 0.089 = u2 0.3, -0.3 31. w3 = -0.027 -0.3

32. Ray planted a square garden that covers an area of 200 ft2. How many feet of fencing does he need to surround the garden? Round to the nearest tenth. 56.6 ft

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Math Accelerated ? Chapter 4 Powers and Roots

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