By Margaret L. Lial
Is there whatever extra attractive than an “A” in Algebra? to not the Lial crew! Marge Lial, John Hornsby, and Terry McGinnis write their textbooks and accompanying assets with one target in brain: giving scholars the entire instruments they should be successful. With this revision, the Lial staff has extra sophisticated the presentation and routines during the textual content. they give a number of fascinating new assets for college students that may offer additional support whilst wanted, whatever the studying surroundings (classroom, lab, hybrid, on-line, etc)–new research talents actions within the textual content, an elevated video software to be had in MyMathLab and at the Video assets on DVD, and extra!
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Extra info for Intermediate Algebra (11th Edition)
Example text
S. , while a positive balance means that exports exceeded imports. (a) Which country had the greatest discrepancy between exports and imports? (b) Which country had the least discrepancy between exports and imports? 1 Basic Concepts 13 Sea level refers to the surface of the ocean. The depth of a body of water such as an ocean or sea can be expressed as a negative number, representing average depth in feet below sea level. By contrast, the altitude of a mountain can be expressed as a positive number, indicating its height in feet above sea level.
100. (a) Calculate the BACs in Exercises 98 and 99 if each person weighs 25 lb more and the rest of the variables stay the same. How does increased weight affect a person’s BAC? (b) Predict how decreased weight would affect the BAC of each person in Exercises 98 and 99. Calculate the BACs if each person weighs 25 lb less and the rest of the variables stay the same. 101. 909x - 3791. ) Approximate the amount spent in each year. Round answers to the nearest tenth. (a) 1996 (b) 2002 (c) 2008 (d) How has the amount Americans have spent on their pets changed from 1996 to 2008?
142 3 24 a- b 8 9 71. 142 60. - 201 - 42 64. 3 1- 352 5 68. - 2 77 a- b 11 4 72. 12 Divide where possible. See Example 7. 73. - 14 2 74. - 39 13 75. - 24 -4 76. - 45 -9 77. 100 - 25 78. 150 - 30 79. 0 -8 80. 0 - 14 81. 5 0 82. 13 0 10 12 83. , a- b 17 5 87. 2 22 33 84. , a- b 23 5 88. 2 12 13 85. 4 3 89. 01 7 6 86. 1 30 90. 06 22 CHAPTER 1 Review of the Real Number System Exercises 91–116 provide more practice on operations with fractions and decimals. Perform the indicated operations. 91. 1 7 - a- b 6 9 92.