Page 146 - Basic College Mathematics with Early Integers

S E C T I O N 2.2 I INTRODUCTION TO INTEGERS 123

Insert 6, 7, or = between each pair of numbers to make a true statement. See Examples 3 through 6.

67. -3 -5 68. -17 -6 69. ƒ -9 ƒ ƒ -14 ƒ 70. ƒ -8 ƒ ƒ -4 ƒ
71. ƒ -33 ƒ -(-33) 72. - ƒ 17 ƒ -(-17) 73. - ƒ -10 ƒ -(-10) 74. ƒ -24 ƒ -(-24)
75. 0 -9 76. -45 0 77. ƒ 0 ƒ ƒ -9 ƒ 78. ƒ -45 ƒ ƒ 0 ƒ

79. - ƒ -2 ƒ - ƒ -10 ƒ 80. - ƒ -8 ƒ - ƒ -4 ƒ 81. -(-12) -(-18) 82. -22 -(-38)

Objectives Mixed Practice Fill in the chart. See Examples 4 through 7.

Absolute Value Opposite of Absolute Value Opposite of
Number of Number Number Number of Number Number
83. 25 84. -13

85. -84 86. 2

Objective The bar graph shows the elevations of selected lakes. Use this graph for Exercises 87 through 90.
See Example 8. (Source: U.S. Geological Survey)

Elevations of Selected Lakes 87. Which lake shown has the lowest elevation?
700
600 600 512 88. Which lake has an elevation at sea level?
Feet Above or Below Sea Level 400 245 144 89. Which lake shown has the highest elevation?
500

300
200
100
0
0
52
100
92
90. Which lake shown has the second lowest
200
Superior, Ontario, Caspian Maracaibo, Great Eyre, Vanern, elevation?
North North Sea, South Bear, Australia Europe
America America Asia- America North
Europe America
The following bar graph represents the boiling temperature, the temperature at which a substance changes from liquid to
gas at standard atmospheric pressure. Use this graph to answer Exercises 91 through 94.
“Boiling” Temperature of Various Elements 91. Which element has a positive boiling temperature
1000 closest to that of water?
883
900
Boiling Temperature in Degrees Celsius 600 0 100 184 280 92. Which element has the lowest boiling temperature?
800
700
500
400
300
93. Which element has a boiling temperature closest to
200
?
-200°C
100
100
200
300 269 253 186 34 94. Which element has an average boiling temperature
400 closest to +300°C ?
Helium Hydrogen Oxygen Chlorine Water Iodine Phosphorus Sodium

Elements