The Learning Guide for Introductory Algebra for College Students
7th Edition
ISBN: 9780134178882
Author: Robert F. Blitzer
Publisher: PEARSON
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Chapter 7, Problem 55RE
To determine
The value of
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Students have asked these similar questions
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 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)
For Exercises 8–10,
a. Simplify the expression. Do not rationalize the denominator.
b. Find the values of x for which the expression equals zero.
c. Find the values of x for which the denominator is zero.
4x(4x – 5) – 2x² (4)
8.
-6x(6x + 1) – (–3x²)(6)
(6x + 1)2
9.
(4x – 5)?
-
10. V4 – x² - -() 2)
Chapter 7 Solutions
The Learning Guide for Introductory Algebra for College Students
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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- 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+ 6xarrow_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_forwardExercises 141–143 will help you prepare for the material covered in the next section. In each exercise, factor the polynomial. (You'll soon be learning techniques that will shorten the factoring process.) 141. x? + 14x + 49 142. x? – 8x + 16 143. х2 — 25 (or x? + 0х — 25)arrow_forward
- In Exercises 126–129, determine whether each statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement. 126. Once a GCF is factored from 6y – 19y + 10y“, the remaining trinomial factor is prime. 127. One factor of 8y² – 51y + 18 is 8y – 3. 128. We can immediately tell that 6x? – 11xy – 10y? is prime because 11 is a prime number and the polynomial contains two variables. 129. A factor of 12x2 – 19xy + 5y² is 4x – y.arrow_forwardIn 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 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_forward
- Exercises 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_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_forwardIn Exercises 133–136, factor each polynomial completely. Assume that any variable exponents represent whole numbers. 133. y + x + x + y 134. 36x2" – y2n 135. x* 3n 12n 136. 4x2" + 20x"y" + 25y2marrow_forward
- For Exercises 115–120, factor the expressions over the set of complex numbers. For assistance, consider these examples. • In Section R.3 we saw that some expressions factor over the set of integers. For example: x - 4 = (x + 2)(x – 2). • Some expressions factor over the set of irrational numbers. For example: - 5 = (x + V5)(x – V5). To factor an expression such as x + 4, we need to factor over the set of complex numbers. For example, verify that x + 4 = (x + 2i)(x – 2i). 115. а. х - 9 116. а. х? - 100 117. а. х - 64 b. x + 9 b. + 100 b. x + 64 118. а. х — 25 119. а. х— 3 120. а. х — 11 b. x + 25 b. x + 3 b. x + 11arrow_forwardIn Exercises 132–137, factor each polynomial. Assume that all variable exponents represent whole numbers. 132. 9x2" + x" – 8 133. 4x2n – 9x" + 5 134. an+2 – a"+2 – 6a? 135. b2n+2 + 3b"+2 10b2 136. 3c"+2 10c"+1 + 3c" 137. 2d"+2 5d"+1 + 3d"arrow_forwardIn Exercises 4-8, simplify each rational expression. If the rational expression cannot be simplified, so state. 5x – 35x 4. 15x2 x2 + 6x – 7 x? – 49 6x? + 7x + 2 6. 2x2 – 9x – 5 x? + 4 7. x - 4 x3 – 8 8. x - 4 .2 5.arrow_forward
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