Basic Mathematics for College Students

1.order 3.inner, outer 5. a.square, multiplication,
subtraction b.multiplication, cube, subtraction, addition
c.subtraction, multiplication, addition d.square,
multiplication 7.parentheses, brackets, absolute value
symbols, fraction bar 9.4, 20,20, 28 11.8,1,5,
 14 13. 10 15. 62 17. 15 19. 12 21. 12
23. 80 25. 72 27. 200 29. 4 31. 28 33. 17

35. 71 37. 21 39. 50 41. 6 43. 12 45. a. 12
    b. 5 47. a. 60 b. 14 49. 2 51. 3 53. 770
    55.5,000 57. 7 59. 1 61. 17 63. 21 65. 19
    67. 7 69. 12 71. 14 73. 11 75. 2 77. 5
    79. 3 81. 5 83. 166 85. 0 87. 14 89. 112


36. 22 93. 8 95. 3 97.400 points 99. 19
    101.$8 million 103.It’s better to refer to the last four
    years, because there was an average budget surplus of
    $16 billion. 105. a.90 ft below sea level (90) b.$600
    lost (600) c.400 ft 111. a. 3 b. 4 113.no

1.{...,5,4,3,2,1,0,1,2,3,4,5,...} 2. a.$1,200
b.10 sec 3.33 ft

4. a.

b.

5. a. b. 6. a.false b.true 7. a. 5 b. 43 c. 0


6. a. 8 b. 8 c. 0 9. a. 12 b. 12 c. 0


7. a.negative b.the opposite c.negative d.minus


8. 
   


9. a.1998, $60 billion b.2000, $230 billion c.2004,
   $420 billion 13. 10 14. 9 15. 32 16. 73 17. 0


10. 0 19. 8 20. 3 21. 10 22. 8 23. 4 24. 20
    25. 76 26. 31 27. 374 28.3,128 29. a. 11
    b. 4 30. a.yes b.yes c.no d.no 31. a.100 ft
    b.66 ft 32.136°F 33.opposite 34. a. 9 (1)
    b. 6 (10) 35. 3 36. 21 37. 4 38. 6
    39. 112 40. 8 41. 37 42. 30 43. 16 44. 24
    45. 4 46. 22 47. 6 48. 8 49. 62 50. 103


11. 75 52. a. 77 b. 77 53.225 ft 54.180°, 140°
    55.44 points 56.$80 57. 14 58. 376 59. 322


12. 25 61. 25 62. 204 63.68,000,000
    64.30,000,000 65. 36 66. 36 67. 120 68. 100


13. 450 70. 48 71.260, 390 72.540 ft 73. 125
    74. 32 75.4,096 76. 256 77.negative 78.In the
    first expression, the base is 9. In the second expression, the
    base is 9.81, 81 79.3, 5, 15 80.The answer is
    incorrect: 18(8)
     152 81. 5 82. 2 83. 8 84. 8

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− 4 − 3 − 2 − 1 01 234

Chapter 2 Review (page 192)

Study Set Section 2.6 (page 188) 85.^10 86.^1 87.^50 88.^400 89.^23 90.^17

91. 0 92.undefined 93. 32 94. 5 95.2 min
    96.4,729 ft 97. 22 98. 4 99. 40 100. 8 101. 41


92. 0 103. 13 104. 32 105. 12 106. 16 107. 4
    108. 34 109. 1 110. 4 111. 5 112. 55
    113.2,300 114. 2


93. a.integers b.inequality c.absolute value
    d.opposites e.base, exponent 2. a. b. c.


94. a.true b.true c.false d.false e.true 4.Poly


95. 
    


96. a. 3 b. 145 c. 1 d. 32 e. 3 7. a. 13
    b. 1 c. 191 d. 15 e.  150 8. a. 70 b. 292
    c. 48 d. 54 e.26,000,000 9.5(4)  20 10. a. 8
    b. 8 c. 9 d. 34 e.  80 11. a. 12 b. 18 c. 4
    d. 80 12. a.commutative property of addition
    b.commutative property of multiplication c.adding


97. a.undefined b. 5 c. 0 d. 1 14. a. 16 b. 16


98. 1 16. 27 17. 34 18. 88 19. 6 20. 48
    21. 24 22. 58 23.72°F 24.$203 lost (203)
    25.154 ft 26.350 ft 27. 15 28.$60 million


99. a.7 millions b. 3 c.7,326,500 d.7,330,000
    2.CRF Cable


100. 
     


101. 360 5.1,854 6.24,388 7.3,806 8.4,684 9.37,777
     10.1,432 11.no 12.65 wooden chairs 13.11,745
     14.5,528,166 15.21,700,000 16.864 tennis balls
     17.104 ft, 595 ft^2 18.25, 144, 10,000 19.87 R 5 20. 13


102. 467 22. 28 23.yes 24.10 times, 20 ounces
     25.60 rolls 26.1, 2, 3, 6, 9, 18 27. a.prime number, odd
     number b.composite number, even number c.neither,
     even number d.neither, odd number 28. 23  32  7


103. 114 30. 175 31. 24 32. 30 33. 6 34. 27 35. 38


104. 10 37. 2 38.41 mph


105. a.

b.

40. 3 41. 21 42.$79 43.273° Celsius

44.$55,000 45. 37 46. 70 47. 3 48. 4

49. 129 50. 1 51. 23 52. 0 53. 4 54. 3
    55.100 ft 56.$4,000,000

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− 3 − 2 − 1 01 23

Number of operable

U.S. nuclear power plants

80

70

60

50

40

30

20

10

90

1978

Source: allcountries.org and The World Almanac and Book of Facts, 2009

100

110

120

1983 1988 1993 1998 2003 2008

Bar graph

Chapters 1–2 Cumulative Review (page 203)

− 5 − 4 − 3 − 2 − 1 01 234 5

Chapter 2 Test (page 201)

Appendix V Answers to Selected Exercises A-37

Position Player Score to par

1 Helen Alfredsson  12

2 Yani Tseng  9

3 Laura Diaz  8

4 Karen Stupples  7

5 Young Kim  6

6 Shanshan Feng  5