College Algebra, 4th Edition

Building Skills

1. 9. $0.\overline{3}$ repeating

2. 10. $0.\overline{6}$ repeating

3. 11. $-0.8$ terminating

4. 12. $-0.25$ terminating

5. 13. $0.\overline{27}$ repeating

6. 14. $0.\overline{3}$ repeating

7. 15. $3.1\overline{6}$ repeating

8. 16. $2.7\overline{3}$ repeating

9. 17. ${\displaystyle \frac{15}{4}}$

10. 18. $-{\displaystyle \frac{47}{20}}$

11. 19. $-{\displaystyle \frac{16}{3}}$

12. 20. ${\displaystyle \frac{29}{3}}$

13. 21. ${\displaystyle \frac{211}{99}}$

14. 22. ${\displaystyle \frac{320}{99}}$

15. 23. ${\displaystyle \frac{2239}{495}}$

16. 24. ${\displaystyle \frac{14,093}{9900}}$

17. 25. Rational

18. 26. Rational

19. 27. Rational

20. 28. Rational

21. 29. Rational

22. 30. Rational

23. 31. Irrational

24. 32. Irrational

25. 33. 2 and 11

26. 34. 0, 2, and 11

27. 35. $-19,-{\displaystyle \frac{12}{3}}(\text{or}-4),0,2,$ and 11

28. 36. $-19,-{\displaystyle \frac{12}{3}},0,2,{\displaystyle \frac{17}{4}},11$

29. 37. $-\sqrt{3}$ and $\sqrt{10}$

30. 38. All numbers in the set A are real numbers

31. 39. base 10, exponent 3, 1000

32. 40. base 5, exponent 4, 625

33. 41. base ${\displaystyle \frac{2}{3}},$ exponent 3, ${\displaystyle \frac{8}{27}}$

34. 42. base ${\displaystyle \frac{5}{2}},$ exponent 4, ${\displaystyle \frac{625}{16}}$

35. 43. base $-2,$ exponent 3, $-8$

36. 44. base $-{\displaystyle \frac{1}{2}},$ exponent 4, ${\displaystyle \frac{1}{16}}$

37. 45. base 3, exponent 4, 162

38. 46. base ${\displaystyle \frac{1}{3}}$, exponent 3, ${\displaystyle \frac{5}{\mathrm{27\; ...}}}$