Introductory Algebra for College Students (7th Edition)
7th Edition
ISBN: 9780134178059
Author: Robert F. Blitzer
Publisher: PEARSON
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Textbook Question
Chapter 7.6, Problem 42ES
In Exercises 1—46, solve each rational equation.
42.
Expert Solution & Answer
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Exercises 38–40 will help you prepare for the material covered in
the first section of the next chapter.
In Exercises 38-39, simplify each algebraic expression.
38. (-9x³ + 7x? - 5x + 3) + (13x + 2r? – &x – 6)
39. (7x3 – 8x? + 9x – 6) – (2x – 6x? – 3x + 9)
40. The figures show the graphs of two functions.
y
y
201
10-
....
-20-
flx) = x³
glx) = -0.3x + 4x + 2
In Exercises 105–107, solve each equation using a graphing utility.
Graph each side separately in the same viewing rectangle. The
solutions are the x-coordinates of the intersection points.
105. |x + 1||
106. 13(x + 4)| = 12
107. 12x – 3| = 19 – 4x|
In Exercises 106–108, factor and simplify each algebraic expression.
106. 16x
+ 32r4
107. (x² – 4)(x² + 3) - (r? – 4)°(x² + 3)2
108. 12x+ 6x
Chapter 7 Solutions
Introductory Algebra for College Students (7th Edition)
Ch. 7.1 - Fill in each blank so that the resulting statement...Ch. 7.1 - Prob. 2CAVCCh. 7.1 - Prob. 3CAVCCh. 7.1 - Prob. 4CAVCCh. 7.1 - Prob. 5CAVCCh. 7.1 - Fill in each blank so that the resulting statement...Ch. 7.1 - Prob. 7CAVCCh. 7.1 - Prob. 8CAVCCh. 7.1 - Prob. 9CAVCCh. 7.1 - Prob. 1ES
Ch. 7.1 - Prob. 2ESCh. 7.1 - Prob. 3ESCh. 7.1 - Prob. 4ESCh. 7.1 - Prob. 5ESCh. 7.1 - Prob. 6ESCh. 7.1 - Prob. 7ESCh. 7.1 - In Exercises 1 - 20, find all numbers for which...Ch. 7.1 - Prob. 9ESCh. 7.1 - Prob. 10ESCh. 7.1 - Prob. 11ESCh. 7.1 - Prob. 12ESCh. 7.1 - Prob. 13ESCh. 7.1 - Prob. 14ESCh. 7.1 - Prob. 15ESCh. 7.1 - Prob. 16ESCh. 7.1 - Prob. 17ESCh. 7.1 - In Exercises 1 - 20, find all numbers for which...Ch. 7.1 - Prob. 19ESCh. 7.1 - Prob. 20ESCh. 7.1 - Prob. 21ESCh. 7.1 - Prob. 22ESCh. 7.1 - Prob. 23ESCh. 7.1 - Prob. 24ESCh. 7.1 - Prob. 25ESCh. 7.1 - Prob. 26ESCh. 7.1 - Prob. 27ESCh. 7.1 - Prob. 28ESCh. 7.1 - Prob. 29ESCh. 7.1 - Prob. 30ESCh. 7.1 - Prob. 31ESCh. 7.1 - Prob. 32ESCh. 7.1 - Prob. 33ESCh. 7.1 - Prob. 34ESCh. 7.1 - Prob. 35ESCh. 7.1 - Prob. 36ESCh. 7.1 - Prob. 37ESCh. 7.1 - Prob. 38ESCh. 7.1 - Prob. 39ESCh. 7.1 - Prob. 40ESCh. 7.1 - Prob. 41ESCh. 7.1 - Prob. 42ESCh. 7.1 - Prob. 43ESCh. 7.1 - Prob. 44ESCh. 7.1 - Prob. 45ESCh. 7.1 - Prob. 46ESCh. 7.1 - Prob. 47ESCh. 7.1 - Prob. 48ESCh. 7.1 - Prob. 49ESCh. 7.1 - Prob. 50ESCh. 7.1 - Prob. 51ESCh. 7.1 - Prob. 52ESCh. 7.1 - Prob. 53ESCh. 7.1 - Prob. 54ESCh. 7.1 - Prob. 55ESCh. 7.1 - Prob. 56ESCh. 7.1 - Prob. 57ESCh. 7.1 - Prob. 58ESCh. 7.1 - Prob. 59ESCh. 7.1 - Prob. 60ESCh. 7.1 - Prob. 61ESCh. 7.1 - Prob. 62ESCh. 7.1 - Prob. 63ESCh. 7.1 - Prob. 64ESCh. 7.1 - Prob. 65ESCh. 7.1 - Prob. 66ESCh. 7.1 - Prob. 67ESCh. 7.1 - Prob. 68ESCh. 7.1 - Prob. 69ESCh. 7.1 - Prob. 70ESCh. 7.1 - Prob. 71ESCh. 7.1 - Prob. 72ESCh. 7.1 - Prob. 73ESCh. 7.1 - Prob. 74ESCh. 7.1 - Prob. 75ESCh. 7.1 - Prob. 76ESCh. 7.1 - Prob. 77ESCh. 7.1 - Prob. 78ESCh. 7.1 - Prob. 79ESCh. 7.1 - Prob. 80ESCh. 7.1 - Prob. 81ESCh. 7.1 - Prob. 82ESCh. 7.1 - Prob. 83ESCh. 7.1 - Prob. 84ESCh. 7.1 - Prob. 85ESCh. 7.1 - Prob. 86ESCh. 7.1 - Prob. 87ESCh. 7.1 - Prob. 88ESCh. 7.1 - Prob. 89ESCh. 7.1 - A company that manufactures small canoes has costs...Ch. 7.1 - Prob. 91ESCh. 7.1 - Prob. 92ESCh. 7.1 - Prob. 93ESCh. 7.1 - Prob. 94ESCh. 7.1 - Prob. 95ESCh. 7.1 - Prob. 96ESCh. 7.1 - Prob. 97ESCh. 7.1 - Prob. 98ESCh. 7.1 - Prob. 99ESCh. 7.1 - Prob. 100ESCh. 7.1 - Prob. 101ESCh. 7.1 - Prob. 102ESCh. 7.1 - Prob. 103ESCh. 7.1 - Prob. 104ESCh. 7.1 - Prob. 105ESCh. 7.1 - Prob. 106ESCh. 7.1 - Prob. 107ESCh. 7.1 - Prob. 108ESCh. 7.1 - Prob. 109ESCh. 7.1 - Prob. 110ESCh. 7.1 - Prob. 111ESCh. 7.1 - Prob. 112ESCh. 7.1 - Prob. 113ESCh. 7.1 - Prob. 114ESCh. 7.1 - Prob. 115ESCh. 7.1 - Prob. 116ESCh. 7.1 - Prob. 117ESCh. 7.1 - Prob. 118ESCh. 7.2 - Prob. 1CAVCCh. 7.2 - Prob. 2CAVCCh. 7.2 - Prob. 3CAVCCh. 7.2 - Prob. 4CAVCCh. 7.2 - Prob. 1ESCh. 7.2 - Prob. 2ESCh. 7.2 - Prob. 3ESCh. 7.2 - Prob. 4ESCh. 7.2 - Prob. 5ESCh. 7.2 - Prob. 6ESCh. 7.2 - Prob. 7ESCh. 7.2 - Prob. 8ESCh. 7.2 - Prob. 9ESCh. 7.2 - Prob. 10ESCh. 7.2 - Prob. 11ESCh. 7.2 - Prob. 12ESCh. 7.2 - Prob. 13ESCh. 7.2 - Prob. 14ESCh. 7.2 - Prob. 15ESCh. 7.2 - Prob. 16ESCh. 7.2 - Prob. 17ESCh. 7.2 - Prob. 18ESCh. 7.2 - Prob. 19ESCh. 7.2 - Prob. 20ESCh. 7.2 - Prob. 21ESCh. 7.2 - Prob. 22ESCh. 7.2 - Prob. 23ESCh. 7.2 - Prob. 24ESCh. 7.2 - Prob. 25ESCh. 7.2 - Prob. 26ESCh. 7.2 - Prob. 27ESCh. 7.2 - Prob. 28ESCh. 7.2 - Prob. 29ESCh. 7.2 - Prob. 30ESCh. 7.2 - Prob. 31ESCh. 7.2 - Prob. 32ESCh. 7.2 - Prob. 33ESCh. 7.2 - Prob. 34ESCh. 7.2 - Prob. 35ESCh. 7.2 - Prob. 36ESCh. 7.2 - Prob. 37ESCh. 7.2 - Prob. 38ESCh. 7.2 - Prob. 39ESCh. 7.2 - Prob. 40ESCh. 7.2 - Prob. 41ESCh. 7.2 - Prob. 42ESCh. 7.2 - Prob. 43ESCh. 7.2 - Prob. 44ESCh. 7.2 - Prob. 45ESCh. 7.2 - Prob. 46ESCh. 7.2 - Prob. 47ESCh. 7.2 - Prob. 48ESCh. 7.2 - Prob. 49ESCh. 7.2 - Prob. 50ESCh. 7.2 - Prob. 51ESCh. 7.2 - Prob. 52ESCh. 7.2 - Prob. 53ESCh. 7.2 - Prob. 54ESCh. 7.2 - Prob. 55ESCh. 7.2 - Prob. 56ESCh. 7.2 - Prob. 57ESCh. 7.2 - Prob. 58ESCh. 7.2 - Prob. 59ESCh. 7.2 - Prob. 60ESCh. 7.2 - Prob. 61ESCh. 7.2 - Prob. 62ESCh. 7.2 - Prob. 63ESCh. 7.2 - Prob. 64ESCh. 7.2 - Prob. 65ESCh. 7.2 - Prob. 66ESCh. 7.2 - Prob. 67ESCh. 7.2 - Prob. 68ESCh. 7.2 - Prob. 69ESCh. 7.2 - Prob. 70ESCh. 7.2 - Prob. 71ESCh. 7.2 - Prob. 72ESCh. 7.2 - Prob. 73ESCh. 7.2 - Prob. 74ESCh. 7.2 - Prob. 75ESCh. 7.2 - Prob. 76ESCh. 7.2 - Prob. 77ESCh. 7.2 - Prob. 78ESCh. 7.2 - Prob. 79ESCh. 7.2 - Prob. 80ESCh. 7.2 - Prob. 81ESCh. 7.2 - Prob. 82ESCh. 7.2 - Prob. 83ESCh. 7.2 - Prob. 84ESCh. 7.2 - Prob. 85ESCh. 7.2 - Prob. 86ESCh. 7.2 - Prob. 87ESCh. 7.2 - Prob. 88ESCh. 7.2 - Prob. 89ESCh. 7.2 - Prob. 90ESCh. 7.2 - Prob. 91ESCh. 7.2 - Prob. 92ESCh. 7.2 - Prob. 93ESCh. 7.2 - Prob. 94ESCh. 7.2 - Prob. 95ESCh. 7.2 - Prob. 96ESCh. 7.2 - Prob. 97ESCh. 7.2 - Prob. 98ESCh. 7.2 - Prob. 99ESCh. 7.2 - Prob. 100ESCh. 7.3 - Prob. 1CAVCCh. 7.3 - Prob. 2CAVCCh. 7.3 - Prob. 3CAVCCh. 7.3 - Prob. 4CAVCCh. 7.3 - Prob. 5CAVCCh. 7.3 - Prob. 6CAVCCh. 7.3 - Prob. 1ESCh. 7.3 - Prob. 2ESCh. 7.3 - Prob. 3ESCh. 7.3 - Prob. 4ESCh. 7.3 - Prob. 5ESCh. 7.3 - Prob. 6ESCh. 7.3 - Prob. 7ESCh. 7.3 - Prob. 8ESCh. 7.3 - Prob. 9ESCh. 7.3 - Prob. 10ESCh. 7.3 - Prob. 11ESCh. 7.3 - Prob. 12ESCh. 7.3 - Prob. 13ESCh. 7.3 - Prob. 14ESCh. 7.3 - Prob. 15ESCh. 7.3 - Prob. 16ESCh. 7.3 - Prob. 17ESCh. 7.3 - Prob. 18ESCh. 7.3 - Prob. 19ESCh. 7.3 - Prob. 20ESCh. 7.3 - Prob. 21ESCh. 7.3 - Prob. 22ESCh. 7.3 - Prob. 23ESCh. 7.3 - Prob. 24ESCh. 7.3 - Prob. 25ESCh. 7.3 - Prob. 26ESCh. 7.3 - Prob. 27ESCh. 7.3 - Prob. 28ESCh. 7.3 - Prob. 29ESCh. 7.3 - Prob. 30ESCh. 7.3 - Prob. 31ESCh. 7.3 - Prob. 32ESCh. 7.3 - Prob. 33ESCh. 7.3 - Prob. 34ESCh. 7.3 - Prob. 35ESCh. 7.3 - Prob. 36ESCh. 7.3 - Prob. 37ESCh. 7.3 - Prob. 38ESCh. 7.3 - Prob. 39ESCh. 7.3 - Prob. 40ESCh. 7.3 - Prob. 41ESCh. 7.3 - Prob. 42ESCh. 7.3 - Prob. 43ESCh. 7.3 - Prob. 44ESCh. 7.3 - Prob. 45ESCh. 7.3 - Prob. 46ESCh. 7.3 - Prob. 47ESCh. 7.3 - Prob. 48ESCh. 7.3 - Prob. 49ESCh. 7.3 - Prob. 50ESCh. 7.3 - Prob. 51ESCh. 7.3 - Prob. 52ESCh. 7.3 - Prob. 53ESCh. 7.3 - Prob. 54ESCh. 7.3 - Prob. 55ESCh. 7.3 - Prob. 56ESCh. 7.3 - Prob. 57ESCh. 7.3 - Prob. 58ESCh. 7.3 - Prob. 59ESCh. 7.3 - Prob. 60ESCh. 7.3 - Prob. 61ESCh. 7.3 - Prob. 62ESCh. 7.3 - Prob. 63ESCh. 7.3 - Prob. 64ESCh. 7.3 - In Exercises 65-72, perform the indicated...Ch. 7.3 - Prob. 66ESCh. 7.3 - Prob. 67ESCh. 7.3 - In Exercises 65—72, perform the indicated...Ch. 7.3 - Prob. 69ESCh. 7.3 - Prob. 70ESCh. 7.3 - In Exercises 65—72, perform the indicated...Ch. 7.3 - Prob. 72ESCh. 7.3 - Prob. 73ESCh. 7.3 - Prob. 74ESCh. 7.3 - Prob. 75ESCh. 7.3 - Prob. 76ESCh. 7.3 - Explain how to add rational expressions when...Ch. 7.3 - Prob. 78ESCh. 7.3 - Prob. 79ESCh. 7.3 - Prob. 80ESCh. 7.3 - Prob. 81ESCh. 7.3 - Prob. 82ESCh. 7.3 - Prob. 83ESCh. 7.3 - Prob. 84ESCh. 7.3 - Prob. 85ESCh. 7.3 - Prob. 86ESCh. 7.3 - Prob. 87ESCh. 7.3 - Prob. 88ESCh. 7.3 - Prob. 89ESCh. 7.3 - Prob. 90ESCh. 7.3 - Prob. 91ESCh. 7.3 - Prob. 92ESCh. 7.3 - Prob. 93ESCh. 7.3 - Prob. 94ESCh. 7.3 - In Exercises 91—95, find the missing expression....Ch. 7.3 - Prob. 96ESCh. 7.3 - Prob. 97ESCh. 7.3 - Prob. 98ESCh. 7.3 - Prob. 99ESCh. 7.3 - Prob. 100ESCh. 7.3 - Prob. 101ESCh. 7.3 - Prob. 102ESCh. 7.3 - Prob. 103ESCh. 7.3 - Prob. 104ESCh. 7.4 - Prob. 1CAVCCh. 7.4 - Prob. 2CAVCCh. 7.4 - Prob. 3CAVCCh. 7.4 - Prob. 4CAVCCh. 7.4 - Prob. 5CAVCCh. 7.4 - Prob. 1ESCh. 7.4 - Prob. 2ESCh. 7.4 - Prob. 3ESCh. 7.4 - Prob. 4ESCh. 7.4 - Prob. 5ESCh. 7.4 - Prob. 6ESCh. 7.4 - Prob. 7ESCh. 7.4 - Prob. 8ESCh. 7.4 - Prob. 9ESCh. 7.4 - Prob. 10ESCh. 7.4 - Prob. 11ESCh. 7.4 - Prob. 12ESCh. 7.4 - Prob. 13ESCh. 7.4 - Prob. 14ESCh. 7.4 - In Exercises 1-16, find the least common...Ch. 7.4 - In Exercises 1-16, find the least common...Ch. 7.4 - Prob. 17ESCh. 7.4 - Prob. 18ESCh. 7.4 - Prob. 19ESCh. 7.4 - Prob. 20ESCh. 7.4 - Prob. 21ESCh. 7.4 - Prob. 22ESCh. 7.4 - Prob. 23ESCh. 7.4 - Prob. 24ESCh. 7.4 - Prob. 25ESCh. 7.4 - Prob. 26ESCh. 7.4 - Prob. 27ESCh. 7.4 - Prob. 28ESCh. 7.4 - Prob. 29ESCh. 7.4 - In Exercises 17—82, add or subtract as indicated....Ch. 7.4 - Prob. 31ESCh. 7.4 - Prob. 32ESCh. 7.4 - Prob. 33ESCh. 7.4 - Prob. 34ESCh. 7.4 - Prob. 35ESCh. 7.4 - Prob. 36ESCh. 7.4 - Prob. 37ESCh. 7.4 - Prob. 38ESCh. 7.4 - Prob. 39ESCh. 7.4 - Prob. 40ESCh. 7.4 - Prob. 41ESCh. 7.4 - Prob. 42ESCh. 7.4 - Prob. 43ESCh. 7.4 - Prob. 44ESCh. 7.4 - Prob. 45ESCh. 7.4 - Prob. 46ESCh. 7.4 - Prob. 47ESCh. 7.4 - Prob. 48ESCh. 7.4 - Prob. 49ESCh. 7.4 - Prob. 50ESCh. 7.4 - Prob. 51ESCh. 7.4 - Prob. 52ESCh. 7.4 - In Exercises 17—82, add or subtract as indicated....Ch. 7.4 - In Exercises 17—82, add or subtract as indicated....Ch. 7.4 - In Exercises 17-82, add or subtract as indicated....Ch. 7.4 - In Exercises 17—82, add or subtract as indicated....Ch. 7.4 - Prob. 57ESCh. 7.4 - Prob. 58ESCh. 7.4 - Prob. 59ESCh. 7.4 - Prob. 60ESCh. 7.4 - Prob. 61ESCh. 7.4 - Prob. 62ESCh. 7.4 - Prob. 63ESCh. 7.4 - Prob. 64ESCh. 7.4 - Prob. 65ESCh. 7.4 - Prob. 66ESCh. 7.4 - Prob. 67ESCh. 7.4 - Prob. 68ESCh. 7.4 - Prob. 69ESCh. 7.4 - Prob. 70ESCh. 7.4 - Prob. 71ESCh. 7.4 - Prob. 72ESCh. 7.4 - Prob. 73ESCh. 7.4 - Prob. 74ESCh. 7.4 - Prob. 75ESCh. 7.4 - Prob. 76ESCh. 7.4 - Prob. 77ESCh. 7.4 - Prob. 78ESCh. 7.4 - Prob. 79ESCh. 7.4 - Prob. 80ESCh. 7.4 - Prob. 81ESCh. 7.4 - Prob. 82ESCh. 7.4 - Prob. 83ESCh. 7.4 - Prob. 84ESCh. 7.4 - Prob. 85ESCh. 7.4 - Prob. 86ESCh. 7.4 - Prob. 87ESCh. 7.4 - Prob. 88ESCh. 7.4 - Prob. 89ESCh. 7.4 - Prob. 90ESCh. 7.4 - Prob. 91ESCh. 7.4 - Prob. 92ESCh. 7.4 - Two formulas that approximate the dosage of e drug...Ch. 7.4 - Prob. 94ESCh. 7.4 - Prob. 95ESCh. 7.4 - Prob. 96ESCh. 7.4 - Prob. 97ESCh. 7.4 - Prob. 98ESCh. 7.4 - The graphs illustrate Young’s rule and Cowling’s...Ch. 7.4 - Prob. 100ESCh. 7.4 - In Exercises 101—102, express the perimeter of...Ch. 7.4 - In Exercises 101—102, express the perimeter of...Ch. 7.4 - Prob. 103ESCh. 7.4 - Prob. 104ESCh. 7.4 - Prob. 105ESCh. 7.4 - Prob. 106ESCh. 7.4 - The formulas in Exercises 93—96 relate the dosage...Ch. 7.4 - Make Sense? In Exercises 108—111, determine...Ch. 7.4 - Prob. 109ESCh. 7.4 - Prob. 110ESCh. 7.4 - Prob. 111ESCh. 7.4 - Prob. 112ESCh. 7.4 - Prob. 113ESCh. 7.4 - Prob. 114ESCh. 7.4 - Prob. 115ESCh. 7.4 - In Exercises 116—1l7, perform the indicated...Ch. 7.4 - In Exercises 116—1l7, perform the indicated...Ch. 7.4 - Prob. 118ESCh. 7.4 - Prob. 119ESCh. 7.4 - Prob. 120ESCh. 7.4 - Prob. 121ESCh. 7.4 - Prob. 122ESCh. 7.4 - Exercises 123-125 will help you prepare for the...Ch. 7.4 - Prob. 124ESCh. 7.4 - Prob. 125ESCh. 7.5 - Prob. 1CAVCCh. 7.5 - Prob. 2CAVCCh. 7.5 - Prob. 3CAVCCh. 7.5 - Prob. 4CAVCCh. 7.5 - Prob. 1ESCh. 7.5 - Prob. 2ESCh. 7.5 - In Exercises 1—40, simplify each complex rational...Ch. 7.5 - Prob. 4ESCh. 7.5 - Prob. 5ESCh. 7.5 - Prob. 6ESCh. 7.5 - Prob. 7ESCh. 7.5 - Prob. 8ESCh. 7.5 - Prob. 9ESCh. 7.5 - Prob. 10ESCh. 7.5 - Prob. 11ESCh. 7.5 - Prob. 12ESCh. 7.5 - Prob. 13ESCh. 7.5 - Prob. 14ESCh. 7.5 - Prob. 15ESCh. 7.5 - Prob. 16ESCh. 7.5 - Prob. 17ESCh. 7.5 - Prob. 18ESCh. 7.5 - Prob. 19ESCh. 7.5 - Prob. 20ESCh. 7.5 - Prob. 21ESCh. 7.5 - Prob. 22ESCh. 7.5 - Prob. 23ESCh. 7.5 - Prob. 24ESCh. 7.5 - Prob. 25ESCh. 7.5 - Prob. 26ESCh. 7.5 - Prob. 27ESCh. 7.5 - Prob. 28ESCh. 7.5 - Prob. 29ESCh. 7.5 - Prob. 30ESCh. 7.5 - Prob. 31ESCh. 7.5 - Prob. 32ESCh. 7.5 - Prob. 33ESCh. 7.5 - Prob. 34ESCh. 7.5 - Prob. 35ESCh. 7.5 - Prob. 36ESCh. 7.5 - Prob. 37ESCh. 7.5 - Prob. 38ESCh. 7.5 - Prob. 39ESCh. 7.5 - Prob. 40ESCh. 7.5 - Prob. 41ESCh. 7.5 - Prob. 42ESCh. 7.5 - Prob. 43ESCh. 7.5 - Prob. 44ESCh. 7.5 - Prob. 45ESCh. 7.5 - Prob. 46ESCh. 7.5 - Prob. 47ESCh. 7.5 - Prob. 48ESCh. 7.5 - Prob. 49ESCh. 7.5 - Prob. 50ESCh. 7.5 - Prob. 51ESCh. 7.5 - Prob. 52ESCh. 7.5 - Prob. 53ESCh. 7.5 - Prob. 54ESCh. 7.5 - Prob. 55ESCh. 7.5 - Prob. 56ESCh. 7.5 - Prob. 57ESCh. 7.5 - Prob. 58ESCh. 7.5 - Prob. 59ESCh. 7.5 - Prob. 60ESCh. 7.5 - Prob. 61ESCh. 7.5 - Prob. 62ESCh. 7.5 - Prob. 63ESCh. 7.5 - In one short sentence, five words or less, explain...Ch. 7.5 - In Exercise 65-66, simplify completely. 65....Ch. 7.5 - Prob. 66ESCh. 7.5 - Prob. 67ESCh. 7.5 - Prob. 68ESCh. 7.5 - Prob. 69ESCh. 7.5 - Prob. 70ESCh. 7.5 - Prob. 71ESCh. 7.5 - Prob. 72ESCh. 7.5 - Prob. 73ESCh. 7.5 - Prob. 74ESCh. 7.5 - Prob. 75ESCh. 7.6 - Prob. 1CAVCCh. 7.6 - Prob. 2CAVCCh. 7.6 - Prob. 3CAVCCh. 7.6 - Prob. 4CAVCCh. 7.6 - Prob. 5CAVCCh. 7.6 - Prob. 6CAVCCh. 7.6 - Prob. 7CAVCCh. 7.6 - Prob. 8CAVCCh. 7.6 - Prob. 9CAVCCh. 7.6 - Prob. 10CAVCCh. 7.6 - Prob. 1ESCh. 7.6 - Prob. 2ESCh. 7.6 - Prob. 3ESCh. 7.6 - Prob. 4ESCh. 7.6 - Prob. 5ESCh. 7.6 - Prob. 6ESCh. 7.6 - Prob. 7ESCh. 7.6 - Prob. 8ESCh. 7.6 - Prob. 9ESCh. 7.6 - Prob. 10ESCh. 7.6 - Prob. 11ESCh. 7.6 - Prob. 12ESCh. 7.6 - Prob. 13ESCh. 7.6 - Prob. 14ESCh. 7.6 - Prob. 15ESCh. 7.6 - Prob. 16ESCh. 7.6 - Prob. 17ESCh. 7.6 - Prob. 18ESCh. 7.6 - In Exercises 1—46, solve each rational equation....Ch. 7.6 - Prob. 20ESCh. 7.6 - Prob. 21ESCh. 7.6 - Prob. 22ESCh. 7.6 - Prob. 23ESCh. 7.6 - Prob. 24ESCh. 7.6 - Prob. 25ESCh. 7.6 - Prob. 26ESCh. 7.6 - Prob. 27ESCh. 7.6 - Prob. 28ESCh. 7.6 - Prob. 29ESCh. 7.6 - Prob. 30ESCh. 7.6 - Prob. 31ESCh. 7.6 - Prob. 32ESCh. 7.6 - Prob. 33ESCh. 7.6 - Prob. 34ESCh. 7.6 - Prob. 35ESCh. 7.6 - Prob. 36ESCh. 7.6 - Prob. 37ESCh. 7.6 - Prob. 38ESCh. 7.6 - Prob. 39ESCh. 7.6 - Prob. 40ESCh. 7.6 - Prob. 41ESCh. 7.6 - In Exercises 1—46, solve each rational equation....Ch. 7.6 - Prob. 43ESCh. 7.6 - Prob. 44ESCh. 7.6 - Prob. 45ESCh. 7.6 - Prob. 46ESCh. 7.6 - Prob. 47ESCh. 7.6 - Prob. 48ESCh. 7.6 - Prob. 49ESCh. 7.6 - Prob. 50ESCh. 7.6 - Prob. 51ESCh. 7.6 - Prob. 52ESCh. 7.6 - Prob. 53ESCh. 7.6 - Prob. 54ESCh. 7.6 - Prob. 55ESCh. 7.6 - Prob. 56ESCh. 7.6 - Prob. 57ESCh. 7.6 - Prob. 58ESCh. 7.6 - Prob. 59ESCh. 7.6 - Prob. 60ESCh. 7.6 - Prob. 61ESCh. 7.6 - Prob. 62ESCh. 7.6 - Prob. 63ESCh. 7.6 - Prob. 64ESCh. 7.6 - Prob. 65ESCh. 7.6 - Prob. 66ESCh. 7.6 - Prob. 67ESCh. 7.6 - Prob. 68ESCh. 7.6 - Prob. 69ESCh. 7.6 - Prob. 70ESCh. 7.6 - Prob. 71ESCh. 7.6 - Prob. 72ESCh. 7.6 - Prob. 73ESCh. 7.6 - Prob. 74ESCh. 7.6 - Prob. 75ESCh. 7.6 - Prob. 76ESCh. 7.6 - Prob. 77ESCh. 7.6 - Prob. 78ESCh. 7.6 - In Exercises 78-79, solve each rational equation....Ch. 7.6 - Prob. 80ESCh. 7.6 - Prob. 81ESCh. 7.6 - Prob. 82ESCh. 7.6 - Prob. 83ESCh. 7.6 - Prob. 84ESCh. 7.6 - Simplify: (3x2)(4x10) (Section 5.7, Example 3)Ch. 7.6 - Prob. 86ESCh. 7.6 - Prob. 87ESCh. 7.6 - Prob. 88ESCh. 7.6 - Prob. 89ESCh. 7.7 - Prob. 1CAVCCh. 7.7 - Prob. 2CAVCCh. 7.7 - Prob. 3CAVCCh. 7.7 - Prob. 4CAVCCh. 7.7 - Prob. 5CAVCCh. 7.7 - Prob. 1ESCh. 7.7 - Prob. 2ESCh. 7.7 - Prob. 3ESCh. 7.7 - Prob. 4ESCh. 7.7 - Prob. 5ESCh. 7.7 - Prob. 6ESCh. 7.7 - Prob. 7ESCh. 7.7 - Prob. 8ESCh. 7.7 - Prob. 9ESCh. 7.7 - Prob. 10ESCh. 7.7 - Prob. 11ESCh. 7.7 - Prob. 12ESCh. 7.7 - Prob. 13ESCh. 7.7 - Prob. 14ESCh. 7.7 - Prob. 15ESCh. 7.7 - Prob. 16ESCh. 7.7 - Prob. 17ESCh. 7.7 - Prob. 18ESCh. 7.7 - Prob. 19ESCh. 7.7 - Prob. 20ESCh. 7.7 - Prob. 21ESCh. 7.7 - Prob. 22ESCh. 7.7 - Use a proportion to solve each problem in...Ch. 7.7 - Prob. 24ESCh. 7.7 - Prob. 25ESCh. 7.7 - Prob. 26ESCh. 7.7 - Prob. 27ESCh. 7.7 - Prob. 28ESCh. 7.7 - Prob. 29ESCh. 7.7 - Prob. 30ESCh. 7.7 - Prob. 31ESCh. 7.7 - Prob. 32ESCh. 7.7 - Prob. 33ESCh. 7.7 - Prob. 34ESCh. 7.7 - Prob. 35ESCh. 7.7 - Prob. 36ESCh. 7.7 - Prob. 37ESCh. 7.7 - Prob. 38ESCh. 7.7 - Prob. 39ESCh. 7.7 - Prob. 40ESCh. 7.7 - Prob. 41ESCh. 7.7 - Prob. 42ESCh. 7.7 - Prob. 43ESCh. 7.7 - Prob. 44ESCh. 7.7 - Prob. 45ESCh. 7.7 - Prob. 46ESCh. 7.7 - Prob. 47ESCh. 7.7 - Prob. 48ESCh. 7.7 - Prob. 49ESCh. 7.7 - Prob. 50ESCh. 7.7 - Prob. 51ESCh. 7.7 - Prob. 52ESCh. 7.7 - Prob. 53ESCh. 7.7 - Prob. 54ESCh. 7.7 - Prob. 55ESCh. 7.7 - Prob. 56ESCh. 7.7 - Prob. 57ESCh. 7.7 - Prob. 58ESCh. 7.8 - Prob. 1CAVCCh. 7.8 - Fill in each blank so that the resulting statement...Ch. 7.8 - Prob. 3CAVCCh. 7.8 - Prob. 4CAVCCh. 7.8 - Prob. 1ESCh. 7.8 - Prob. 2ESCh. 7.8 - Prob. 3ESCh. 7.8 - Prob. 4ESCh. 7.8 - Prob. 5ESCh. 7.8 - Prob. 6ESCh. 7.8 - Prob. 7ESCh. 7.8 - Prob. 8ESCh. 7.8 - Prob. 9ESCh. 7.8 - Prob. 10ESCh. 7.8 - Prob. 11ESCh. 7.8 - Prob. 12ESCh. 7.8 - Prob. 13ESCh. 7.8 - Prob. 14ESCh. 7.8 - Prob. 15ESCh. 7.8 - Prob. 16ESCh. 7.8 - Prob. 17ESCh. 7.8 - Prob. 18ESCh. 7.8 - Prob. 19ESCh. 7.8 - Prob. 20ESCh. 7.8 - Prob. 21ESCh. 7.8 - Prob. 22ESCh. 7.8 - Prob. 23ESCh. 7.8 - Prob. 24ESCh. 7.8 - What does it mean if two quantities vary directly?Ch. 7.8 - Prob. 26ESCh. 7.8 - What does it mean if two quantities vary...Ch. 7.8 - Prob. 28ESCh. 7.8 - Prob. 29ESCh. 7.8 - Prob. 30ESCh. 7.8 - Prob. 31ESCh. 7.8 - Prob. 32ESCh. 7.8 - Prob. 33ESCh. 7.8 - Prob. 34ESCh. 7.8 - Prob. 35ESCh. 7.8 - Prob. 36ESCh. 7.8 - Prob. 37ESCh. 7.8 - Prob. 38ESCh. 7.8 - Prob. 39ESCh. 7.8 - Exercises 38—40 will help you prepare for the...Ch. 7 - Prob. 1MCPCh. 7 - Prob. 2MCPCh. 7 - Prob. 3MCPCh. 7 - Prob. 4MCPCh. 7 - Prob. 5MCPCh. 7 - Prob. 6MCPCh. 7 - Prob. 7MCPCh. 7 - Prob. 8MCPCh. 7 - Prob. 9MCPCh. 7 - Prob. 10MCPCh. 7 - Prob. 11MCPCh. 7 - Prob. 12MCPCh. 7 - Prob. 13MCPCh. 7 - Prob. 14MCPCh. 7 - Prob. 15MCPCh. 7 - Prob. 16MCPCh. 7 - Prob. 17MCPCh. 7 - Prob. 18MCPCh. 7 - Prob. 19MCPCh. 7 - Prob. 20MCPCh. 7 - Prob. 1RECh. 7 - Prob. 2RECh. 7 - Prob. 3RECh. 7 - Prob. 4RECh. 7 - Prob. 5RECh. 7 - Prob. 6RECh. 7 - Prob. 7RECh. 7 - Prob. 8RECh. 7 - Prob. 9RECh. 7 - Prob. 10RECh. 7 - Prob. 11RECh. 7 - Prob. 12RECh. 7 - Prob. 13RECh. 7 - Prob. 14RECh. 7 - Prob. 15RECh. 7 - Prob. 16RECh. 7 - Prob. 17RECh. 7 - Prob. 18RECh. 7 - Prob. 19RECh. 7 - Prob. 20RECh. 7 - Prob. 21RECh. 7 - Prob. 22RECh. 7 - Prob. 23RECh. 7 - Prob. 24RECh. 7 - Prob. 25RECh. 7 - Prob. 26RECh. 7 - Prob. 27RECh. 7 - Prob. 28RECh. 7 - Prob. 29RECh. 7 - Prob. 30RECh. 7 - Prob. 31RECh. 7 - Prob. 32RECh. 7 - Prob. 33RECh. 7 - Prob. 34RECh. 7 - Prob. 35RECh. 7 - Prob. 36RECh. 7 - Prob. 37RECh. 7 - Prob. 38RECh. 7 - Prob. 39RECh. 7 - Prob. 40RECh. 7 - Prob. 41RECh. 7 - Prob. 42RECh. 7 - Prob. 43RECh. 7 - Prob. 44RECh. 7 - Prob. 45RECh. 7 - Prob. 46RECh. 7 - Prob. 47RECh. 7 - Prob. 48RECh. 7 - Prob. 49RECh. 7 - Prob. 50RECh. 7 - Prob. 51RECh. 7 - Prob. 52RECh. 7 - Prob. 53RECh. 7 - Prob. 54RECh. 7 - Prob. 55RECh. 7 - Prob. 56RECh. 7 - Prob. 57RECh. 7 - Prob. 58RECh. 7 - Prob. 59RECh. 7 - Prob. 60RECh. 7 - Prob. 61RECh. 7 - Prob. 62RECh. 7 - The triangles shown in the figure are similar Find...Ch. 7 - Prob. 64RECh. 7 - Prob. 65RECh. 7 - Prob. 66RECh. 7 - Prob. 1TCh. 7 - Prob. 2TCh. 7 - Prob. 3TCh. 7 - Prob. 4TCh. 7 - Prob. 5TCh. 7 - Prob. 6TCh. 7 - Prob. 7TCh. 7 - Prob. 8TCh. 7 - Prob. 9TCh. 7 - Prob. 10TCh. 7 - Prob. 11TCh. 7 - Prob. 12TCh. 7 - Prob. 13TCh. 7 - Prob. 14TCh. 7 - Prob. 15TCh. 7 - Prob. 16TCh. 7 - Prob. 17TCh. 7 - Prob. 18TCh. 7 - Prob. 19TCh. 7 - Prob. 20TCh. 7 - Prob. 21TCh. 7 - Prob. 22TCh. 7 - Prob. 23TCh. 7 - Prob. 24TCh. 7 - Prob. 25TCh. 7 - The amount of current flowing in an electrical...Ch. 7 - Prob. 1CRECh. 7 - Prob. 2CRECh. 7 - Prob. 3CRECh. 7 - Prob. 4CRECh. 7 - Prob. 5CRECh. 7 - Prob. 6CRECh. 7 - Prob. 7CRECh. 7 - Prob. 8CRECh. 7 - Prob. 9CRECh. 7 - Prob. 10CRECh. 7 - Prob. 11CRECh. 7 - Prob. 12CRECh. 7 - Prob. 13CRECh. 7 - Prob. 14CRECh. 7 - Prob. 15CRECh. 7 - Prob. 16CRECh. 7 - Prob. 17CRECh. 7 - Prob. 18CRECh. 7 - You invested $4000, part at 5% and the remainder...Ch. 7 - Prob. 20CRE
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- For Exercises 5–10, a. Simplify the expression. b. Substitute 0 for h in the simplified expression. 2(x + h)? + 3(x + h) · 5. (2x + 3x) 3(x + h - 4(x + h) – (3x - 4x) 6. h 1 1 1 1 (x + h) – 2 7. x - 2 2(x + h) + 5 8. 2x + 5 h (x + h) – x 9. (x + h) 10. - X h harrow_forwardIn Exercises 129–132, determine whether each statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement. 129. 9x? + 15x + 25 = (3x + 5) 130. x - 27 = (x – 3)(x² + 6x + 9) 131. x³ – 64 = (x – 4)3 132. 4x2 – 121 = (2x – 11)arrow_forwardExercises 149–151 will help you prepare for the material covered in the next section. 149. Multiply: (Vx + 4 + 1)2. 150. Solve: 4x2 16x + 16 = 4(x + 4). 151. Solve: 26 – 11x 16 – 8x + x?.arrow_forward
- In Exercises 125-134, solve each equation. 125. 25 - [2 + 5x – 3(x + 2)] = -3(2x – 5) – [5(x – 1) – 3x + 3] 126. 45 - [4 - 2x – 4(x + 7)] = -4(1 + 3x) – [4 – 3(x + 2) – 2(2x – 5)] 127. 7 - 7x = (3x + 2)(x - 1) 128. 10x - 1 = (2r + 1) 129. |x + 2x – 36| = 12 130. |x + 6x + 1| = 8 1 + 1 5 131. 3x + 2 x + 2 x? - 4 1 132. X - 2 X - 3 x - 5x + 6 133. Vx + 8 - Vx 4 = 2 134. Vx + 5 – Vx - 3 = 2 + 1.arrow_forwardExercises 105–107 will help you prepare for the material covered in the next section. 105. Let x represent a number. a. Write an equation in x that describes the following conditions: Four less than three times the number is 32. b. Solve the equation and determine the number. 106. Let x represent the number of countries in the world that are not free. The number of free countries exceeds the number of not-free countries by 44. Write an algebraic expression that represents the number of free countries. 107. You purchase a new car for $20,000. Each year the value of the car decreases by $2500. Write an algebraic expression that represents the car's value, in dollars, after x years.arrow_forwardFor Exercises 39–42, multiply the radicals and simplify. Assume that all variable expressions represent positive real numbers. 39. (6V5 – 2V3)(2V3 + 5V3) 40. (7V2 – 2VIT)(7V2 + 2V1T) 41. (2c²Va – 5ď Vc) 42. (Vx + 2 + 4)²arrow_forward
- Exercises 86–88 will help you prepare for the material covered in the next section. If –9 is substituted for x in the equation 4x – 3 = 5x + 6, is the resulting statement true or false? Simplify: 13 – 3(x + 2). Зх + Simplify: 10(**1).arrow_forwardThe model H described by H= 2.75x+71.48 can be used to predict the height, in centimeters, of a woman whose humerus (the bone from the elbow to the shoulder) is x cm l Predict the height of a woman whose humerus is 44 cm long. The predicted height of a woman whose humerus is 44 cm long is cm. (Type an integer or a decimal.)arrow_forwardMake Sense? In Exercises 135–138, determine whether each statement makes sense or does not make sense, and explain your reasoning. 135. Knowing the difference between factors and terms is important: In (3x?y)“, I can distribute the exponent 2 on each factor, but in (3x² + y)', I cannot do the same thing on each term. 136. I used the FOIL method to find the product of x + 5 and x + 2x + 1. 137. Instead of using the formula for the square of a binomial sum, I prefer to write the binomial sum twice and then apply the FOIL method. 138. Special-product formulas have patterns that make their multiplications quicker than using the FOIL method.arrow_forward
- Exercises 121-123 will help you prepare for the material covered in the next section. 121. If 6 is substituted for x in the equation 2(x – 3) – 17 = 13 – 3(x + 2), is the resulting statement true or false? x + 2 12. Multiply and simplify: 12(*²- ). 4 123. Evaluate -b - VB – 4ac 2a for a = 2, b = 9, and c = -5.arrow_forward3.2 Solve for x -9-arrow_forwardFor Exercises 81–100, make an appropriate substitution and solve the equation. (See Examples 10–11) 81. (2x + 5)? – 7(2x + 5) - 30 = 0 82. (Зх — 7)? - 6(3х — 7)-16 3D 0 83. (x + 2x)? – 18(r + 2x) = -45 84. (x + 3x)? - 86. (у? — 3)? — 9(y? — 3) — 52 %3D 0 14(x + 3x) = -40 85. (x + 2)2 + (x + 2) – 42 = 0 10 2 10 - 61 m - - 27 = 0 x + + 35 = 0 87. 88. - 121 x + т - m m 89. 2 + 2 + = 12 90. + 3 + 6 + 3 = -8 91. 5c2/5 11c/5 + 2 = 0 92. З3 d'/3 – 4 = 0 93. y'/2 – y/4 6 = 0 94. n'/2 + 6n/4 – 16 = 0 95. 9y 10y + 1 = 0 96. 100х-4 29x-2 + 1 = 0 | 97. 4t – 25 Vi = 0 98. 9m – 16Vm = 0 100. 392 + 16q -1 99. 30k-2 – 23k- + 2 = 0 + 5 = 0arrow_forward
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