NAME DATE PERIOD Lesson 7 Homework Practice
[Pages:1]NAME ___________________________________________________ DATE _____________________ PERIOD __________
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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