Basic Technical Mathematics, 11th Edition

Practice and Applications

1. 7. $32\hspace{0.17em}°\hspace{0.17em}$

2. 9. $32\hspace{0.17em}°\hspace{0.17em}$

3. 11. 37

4. 13. 700

5. 15. 0.630

6. 17. 36.5

7. 19. 25.5 mm

8. 21. ${\mathrm{0.0118 ft}}^2$

9. 23. 235 mm

10. 25. ${\mathrm{3320 in.}}^2$

11. 27. ${\mathrm{6190 cm}}^3$

12. 29. ${\mathrm{160,000 ft}}^3$

13. 31. ${\mathrm{55,700 cm}}^3$

14. 33. ${\mathrm{1.62 m}}^2$

15. 35. ${\mathrm{101 in.}}^2$

16. 37. $25\hspace{0.17em}°\hspace{0.17em}$

17. 39. $65\hspace{0.17em}°\hspace{0.17em}$

18. 41. $53\hspace{0.17em}°\hspace{0.17em}$

19. 43. 2.4

20. 45. $p\hspace{0.17em}=\hspace{0.17em}\pi a\hspace{0.17em}+\hspace{0.17em}b\hspace{0.17em}+\hspace{0.17em}\sqrt{4a^2\hspace{0.17em}+\hspace{0.17em}{b}^2}$

21. 47. $A\hspace{0.17em}=\hspace{0.17em}ab\hspace{0.17em}+\hspace{0.17em}{\displaystyle \frac{1}{2}}\pi a^2$

22. 49. yes

23. 51. $n^2\hspace{0.17em};\hspace{0.17em}A\hspace{0.17em}=\hspace{0.17em}\pi {(nr)}^2\hspace{0.17em}=\hspace{0.17em}{n}^2(\pi r^2)$

24. 53. ${\displaystyle \frac{a}{d}}\hspace{0.17em}=\hspace{0.17em}{\displaystyle \frac{b}{c}}$

25. 55. $74\hspace{0.17em}°\hspace{0.17em}$

26. 57. 7.8 m

27. 59. $1\stackrel{¯\hspace{0.17em}}{0}\text{ cm}$

28. 61. $1\stackrel{¯\hspace{0.17em}}{0}\text{ m}$

29. 63. 6.0 m

30. 65. 3.73 mi

31. 67. 26,200 mi

32. 69. ${\mathrm{30 ft}}^2$

33. 71. $1.0\hspace{0.17em}\times \hspace{0.17em}{10}^6{\text{m}}^2$

34. 73. ${\mathrm{190 m}}^3$

35. 75. 10 ft

36. 77. 1000 m

37. 79. 159 gal

38. 81. $w\hspace{0.17em}=\hspace{0.17em}132\text{cm}\hspace{0.17em},\hspace{0.17em}h\hspace{0.17em}=\hspace{0.17em}74.5\text{cm}$

39. 83. $r\hspace{0.17em}=\hspace{0.17em}{\displaystyle \frac{3}{2}}h$