Beginning and Intermediate Algebra
4th Edition
ISBN: 9780073384511
Author: Julie Miller, Molly O'Neill, Nancy Hyde
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 7.6, Problem 21PE
To determine
To calculate: The solution of the rational equation
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Students have asked these similar questions
In Exercises 11–12, find the solution set for each equation.
11. |5x + 3| = 7
12. |6x + 1| = [4x + 15||
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
For 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 = 0
Chapter 7 Solutions
Beginning and Intermediate Algebra
Ch. 7.1 - Evaluate the expression for the given values of x....Ch. 7.1 - Prob. 2SPCh. 7.1 - Evaluate the expression for the given values of x....Ch. 7.1 - Evaluate the expression for the given values of x....Ch. 7.1 - Prob. 5SPCh. 7.1 - Identify the restricted values.
6.
Ch. 7.1 - Identify the restricted values.
7.
Ch. 7.1 - Identify the restricted values.
8.
Ch. 7.1 - Given
9. Factor the numerator and denominator.
Ch. 7.1 - Prob. 10SP
Ch. 7.1 - Prob. 11SPCh. 7.1 - Prob. 12SPCh. 7.1 - Prob. 13SPCh. 7.1 - Prob. 14SPCh. 7.1 - Prob. 15SPCh. 7.1 - Prob. 1PECh. 7.1 - For Exercises 2–10, substitute the given number...Ch. 7.1 - For Exercises 2–10, substitute the given number...Ch. 7.1 - For Exercises 2–10, substitute the given number...Ch. 7.1 - For Exercises 2–10, substitute the given number...Ch. 7.1 - For Exercises 2–10, substitute the given number...Ch. 7.1 - For Exercises 2–10, substitute the given number...Ch. 7.1 - For Exercises 2–10, substitute the given number...Ch. 7.1 - For Exercises 2–10, substitute the given number...Ch. 7.1 - For Exercises 2–10, substitute the given number...Ch. 7.1 - 11. A bicyclist rides 24 mi against a wind and...Ch. 7.1 - Prob. 12PECh. 7.1 - For Exercises 13–24, identify the restricted...Ch. 7.1 - Prob. 14PECh. 7.1 - Prob. 15PECh. 7.1 - Prob. 16PECh. 7.1 - For Exercises 13–24, identify the restricted...Ch. 7.1 - Prob. 18PECh. 7.1 - For Exercises 13–24, identify the restricted...Ch. 7.1 - For Exercises 13–24, identify the restricted...Ch. 7.1 - Prob. 21PECh. 7.1 - Prob. 22PECh. 7.1 - For Exercises 13–24, identify the restricted...Ch. 7.1 - For Exercises 13–24, identify the restricted...Ch. 7.1 - 25. Construct a rational expression that is...Ch. 7.1 - Prob. 26PECh. 7.1 - Construct a rational expression that is undefined...Ch. 7.1 - Construct a rational expression that is undefined...Ch. 7.1 - Evaluate the expressions for x = − 1 . a. 3 x 2 −...Ch. 7.1 - Evaluate the expressions for x = 4 . a. ( x + 5 )...Ch. 7.1 - Prob. 31PECh. 7.1 - Prob. 32PECh. 7.1 - For Exercises 33–42,
a. Identify the restricted...Ch. 7.1 - For Exercises 33–42,
a. Identify the restricted...Ch. 7.1 - For Exercises 33–42, a. Identify the restricted...Ch. 7.1 - For Exercises 33–42, a. Identify the restricted...Ch. 7.1 - For Exercises 33–42, a. Identify the restricted...Ch. 7.1 - Prob. 38PECh. 7.1 - Prob. 39PECh. 7.1 - For Exercises 33–42,
a. Identify the restricted...Ch. 7.1 - For Exercises 33–42, a. Identify the restricted...Ch. 7.1 - Prob. 42PECh. 7.1 - Prob. 43PECh. 7.1 - Prob. 44PECh. 7.1 - Prob. 45PECh. 7.1 - Prob. 46PECh. 7.1 - Prob. 47PECh. 7.1 - Prob. 48PECh. 7.1 - Prob. 49PECh. 7.1 - Prob. 50PECh. 7.1 - Prob. 51PECh. 7.1 - Prob. 52PECh. 7.1 - Prob. 53PECh. 7.1 - Prob. 54PECh. 7.1 - Prob. 55PECh. 7.1 - Prob. 56PECh. 7.1 - Prob. 57PECh. 7.1 - For Exercises 43–72, simplify the rational...Ch. 7.1 - Prob. 59PECh. 7.1 - Prob. 60PECh. 7.1 - Prob. 61PECh. 7.1 - Prob. 62PECh. 7.1 - Prob. 63PECh. 7.1 - Prob. 64PECh. 7.1 - Prob. 65PECh. 7.1 - Prob. 66PECh. 7.1 - Prob. 67PECh. 7.1 - Prob. 68PECh. 7.1 - Prob. 69PECh. 7.1 - Prob. 70PECh. 7.1 - Prob. 71PECh. 7.1 - Prob. 72PECh. 7.1 - What is the relationship between x − 2 and 2 − x ?Ch. 7.1 - What is the relationship between w + p and − w − p...Ch. 7.1 - Prob. 75PECh. 7.1 - Prob. 76PECh. 7.1 - Prob. 77PECh. 7.1 - Prob. 78PECh. 7.1 - Prob. 79PECh. 7.1 - Prob. 80PECh. 7.1 - Prob. 81PECh. 7.1 - Prob. 82PECh. 7.1 - Prob. 83PECh. 7.1 - Prob. 84PECh. 7.1 - For Exercises 75–86, simplify the rational...Ch. 7.1 - Prob. 86PECh. 7.1 - Prob. 87PECh. 7.1 - Prob. 88PECh. 7.1 - Prob. 89PECh. 7.1 - Prob. 90PECh. 7.1 - Prob. 91PECh. 7.1 - Prob. 92PECh. 7.1 - Prob. 93PECh. 7.1 - Prob. 94PECh. 7.1 - Prob. 95PECh. 7.1 - Prob. 96PECh. 7.1 - For Exercises 87–100, simplify the rational...Ch. 7.1 - For Exercises 87–100, simplify the rational...Ch. 7.1 - For Exercises 87–100, simplify the rational...Ch. 7.1 - Prob. 100PECh. 7.1 - Prob. 101PECh. 7.1 - Prob. 102PECh. 7.1 - For Exercises 101–104, factor and simplify. z 2 −...Ch. 7.1 - Prob. 104PECh. 7.2 - Prob. 1SPCh. 7.2 - Multiply. 4 x − 8 x + 6 ⋅ x 2 + 6 x 2 xCh. 7.2 - Prob. 3SPCh. 7.2 - Divide. 7 y − 14 y + 1 ÷ y 2 + 2 y − 8 2 y + 2Ch. 7.2 - Prob. 5SPCh. 7.2 - Divide.
6.
Ch. 7.2 - Prob. 7SPCh. 7.2 - Prob. 1PECh. 7.2 - Prob. 2PECh. 7.2 - Prob. 3PECh. 7.2 - Prob. 4PECh. 7.2 - Prob. 5PECh. 7.2 - Prob. 6PECh. 7.2 - For Exercises 1–8, multiply or divide the...Ch. 7.2 - For Exercises 1–8, multiply or divide the...Ch. 7.2 - Prob. 9PECh. 7.2 - Prob. 10PECh. 7.2 - Prob. 11PECh. 7.2 - Prob. 12PECh. 7.2 - Prob. 13PECh. 7.2 - Prob. 14PECh. 7.2 - Prob. 15PECh. 7.2 - Prob. 16PECh. 7.2 - Prob. 17PECh. 7.2 - Prob. 18PECh. 7.2 - Prob. 19PECh. 7.2 - Prob. 20PECh. 7.2 - Prob. 21PECh. 7.2 - For Exercises 9–24, multiply. (See Examples...Ch. 7.2 - For Exercises 9–24, multiply. (See Examples...Ch. 7.2 - Prob. 24PECh. 7.2 - For Exercises 25–38, divide.(See Examples 4–6.) 4...Ch. 7.2 - Prob. 26PECh. 7.2 - Prob. 27PECh. 7.2 - Prob. 28PECh. 7.2 - Prob. 29PECh. 7.2 - Prob. 30PECh. 7.2 - For Exercises 25–38, divide.(See Examples 4–6.) 3...Ch. 7.2 - Prob. 32PECh. 7.2 - For Exercises 25–38, divide.(See Examples 4–6.) m...Ch. 7.2 - For Exercises 25–38, divide.(See Examples 4–6.) 9...Ch. 7.2 - For Exercises 25–38, divide.(See Examples 4–6.) 3...Ch. 7.2 - Prob. 36PECh. 7.2 - For Exercises 25–38, divide.(See Examples 4–6.) p...Ch. 7.2 - Prob. 38PECh. 7.2 - Prob. 39PECh. 7.2 - Prob. 40PECh. 7.2 - Prob. 41PECh. 7.2 - Prob. 42PECh. 7.2 - Prob. 43PECh. 7.2 - For Exercises 39–64, multiply or divide as...Ch. 7.2 - Prob. 45PECh. 7.2 - Prob. 46PECh. 7.2 - For Exercises 39–64, multiply or divide as...Ch. 7.2 - Prob. 48PECh. 7.2 - For Exercises 39–64, multiply or divide as...Ch. 7.2 - Prob. 50PECh. 7.2 - Prob. 51PECh. 7.2 - Prob. 52PECh. 7.2 - Prob. 53PECh. 7.2 - Prob. 54PECh. 7.2 - For Exercises 39–64, multiply or divide as...Ch. 7.2 - Prob. 56PECh. 7.2 - Prob. 57PECh. 7.2 - Prob. 58PECh. 7.2 - Prob. 59PECh. 7.2 - For Exercises 39–64, multiply or divide as...Ch. 7.2 - For Exercises 39–64, multiply or divide as...Ch. 7.2 - Prob. 62PECh. 7.2 - For Exercises 39–64, multiply or divide as...Ch. 7.2 - For Exercises 39–64, multiply or divide as...Ch. 7.2 - For Exercises 65–70, multiply or divide as...Ch. 7.2 - Prob. 66PECh. 7.2 - Prob. 67PECh. 7.2 - For Exercises 65–70, multiply or divide as...Ch. 7.2 - For Exercises 65–70, multiply or divide as...Ch. 7.2 - For Exercises 65–70, multiply or divide as...Ch. 7.3 - Find the LCD for each set of expressions. 3 8 ; 7...Ch. 7.3 - Prob. 2SPCh. 7.3 - Prob. 3SPCh. 7.3 - Prob. 4SPCh. 7.3 - For each pair of expressions, find the LCD, and...Ch. 7.3 - Prob. 6SPCh. 7.3 - Prob. 7SPCh. 7.3 - a. Find the LCD of the expression. 9 w − 2 ; 11 2...Ch. 7.3 - Prob. 1PECh. 7.3 - Evaluate the expression for the given values of x....Ch. 7.3 - For Exercises 3–4, identify the restricted values....Ch. 7.3 - Prob. 4PECh. 7.3 - For Exercises 5–8, multiply or divide as...Ch. 7.3 - Prob. 6PECh. 7.3 - For Exercises 5–8, multiply or divide as...Ch. 7.3 - Prob. 8PECh. 7.3 - Which of the expressions are equivalent to − 5 x −...Ch. 7.3 - Prob. 10PECh. 7.3 - Prob. 11PECh. 7.3 - Prob. 12PECh. 7.3 - Prob. 13PECh. 7.3 - For Exercises 13–30, identify the LCD. (See...Ch. 7.3 - Prob. 15PECh. 7.3 - Prob. 16PECh. 7.3 - Prob. 17PECh. 7.3 - Prob. 18PECh. 7.3 - Prob. 19PECh. 7.3 - Prob. 20PECh. 7.3 - Prob. 21PECh. 7.3 - Prob. 22PECh. 7.3 - Prob. 23PECh. 7.3 - Prob. 24PECh. 7.3 - Prob. 25PECh. 7.3 - Prob. 26PECh. 7.3 - Prob. 27PECh. 7.3 - Prob. 28PECh. 7.3 - Prob. 29PECh. 7.3 - Prob. 30PECh. 7.3 - Explain why a common denominator of b + 1 b − 1...Ch. 7.3 - Prob. 32PECh. 7.3 - Prob. 33PECh. 7.3 - Prob. 34PECh. 7.3 - Prob. 35PECh. 7.3 - Prob. 36PECh. 7.3 - Prob. 37PECh. 7.3 - Prob. 38PECh. 7.3 - Prob. 39PECh. 7.3 - Prob. 40PECh. 7.3 - Prob. 41PECh. 7.3 - Prob. 42PECh. 7.3 - For Exercises 33–56, find the LCD. Then convert...Ch. 7.3 - Prob. 44PECh. 7.3 - Prob. 45PECh. 7.3 - Prob. 46PECh. 7.3 - Prob. 47PECh. 7.3 - Prob. 48PECh. 7.3 - Prob. 49PECh. 7.3 - Prob. 50PECh. 7.3 - Prob. 51PECh. 7.3 - Prob. 52PECh. 7.3 - Prob. 53PECh. 7.3 - Prob. 54PECh. 7.3 - Prob. 55PECh. 7.3 - Prob. 56PECh. 7.3 - Prob. 57PECh. 7.3 - For Exercises 57–60, find the LCD. Then convert...Ch. 7.3 - Prob. 59PECh. 7.3 - For Exercises 57–60, find the LCD. Then convert...Ch. 7.4 - Add or subtract as indicated. 3 14 + 4 14Ch. 7.4 - Add or subtract as indicated. 2 7 d − 9 7 dCh. 7.4 - Add or subtract as indicated.
3.
Ch. 7.4 - Add or subtract as indicated. 4 t − 9 2 t + 2 − t...Ch. 7.4 - Subtract.
5.
Ch. 7.4 - Subtract. t 12 − t − 2 4Ch. 7.4 - Add.
7.
Ch. 7.4 - Subtract. 2 y y − 1 − 1 y − 2 y + 1 y 2 − yCh. 7.4 - Add. 3 p − 8 + 1 8 − pCh. 7.4 - Write the English phrase as a mathematical...Ch. 7.4 - For the rational expression x 2 − 4 x − 5 x 2 − 7...Ch. 7.4 - For the rational expression a 2 + a − 2 a 2 − 4 a...Ch. 7.4 - For Exercises 3–4, multiply or divide as...Ch. 7.4 - For Exercises 3–4, multiply or divide as...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 5–26, add or subtract the...Ch. 7.4 - For Exercises 27–28, find an expression that...Ch. 7.4 - For Exercises 27–28, find an expression that...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 29–70, add or subtract the...Ch. 7.4 - For Exercises 71–72, find an expression that...Ch. 7.4 - For Exercises 71–72, find an expression that...Ch. 7.4 - Let a number be represented by n. Write the...Ch. 7.4 - Write the reciprocal of the sum of a number and 6.Ch. 7.4 - 75. Write the quotient of 5 and the sum of a...Ch. 7.4 - Write the quotient of 12 and p.Ch. 7.4 - Prob. 77PECh. 7.4 - Prob. 78PECh. 7.4 - Prob. 79PECh. 7.4 - Prob. 80PECh. 7.4 - For Exercises 81–86, perform the indicated...Ch. 7.4 - For Exercises 81–86, perform the indicated...Ch. 7.4 - For Exercises 81–86, perform the indicated...Ch. 7.4 - For Exercises 81–86, perform the indicated...Ch. 7.4 - For Exercises 81–86, perform the indicated...Ch. 7.4 - For Exercises 81–86, perform the indicated...Ch. 7.4 - For Exercises 87–90, simplify by applying the...Ch. 7.4 - For Exercises 87–90, simplify by applying the...Ch. 7.4 - For Exercises 87–90, simplify by applying the...Ch. 7.4 - For Exercises 87–90, simplify by applying the...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.4 - We have learned how to simplify, add, subtract,...Ch. 7.5 - Simplify the expression. 6 x y 9 2 yCh. 7.5 - Simplify the expression. 3 4 − 1 6 + 2 1 3 + 1 2Ch. 7.5 - Simplify the expression. 1 − 1 p p w + w pCh. 7.5 - Simplify the expression. 1 − 3 5 1 4 − 7 10 + 1Ch. 7.5 - Simplify the expression. z 3 − 3 z 1 + 3 zCh. 7.5 - Simplify the expression. 4 p − 3 + 1 1 + 2 p − 3Ch. 7.5 - 1. A _____________ fraction is an expression...Ch. 7.5 - For Exercises 2–3, simplify the expression.
2.
Ch. 7.5 - For Exercises 2–3, simplify the expression. a + 5...Ch. 7.5 - For Exercises 4–6, perform the indicated...Ch. 7.5 - For Exercises 4–6, perform the indicated...Ch. 7.5 - For Exercises 4–6, perform the indicated...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - For Exercises 7–34, simplify the complex fractions...Ch. 7.5 - Prob. 35PECh. 7.5 - Prob. 36PECh. 7.5 - Prob. 37PECh. 7.5 - Prob. 38PECh. 7.5 - Prob. 39PECh. 7.5 - Prob. 40PECh. 7.5 - Prob. 41PECh. 7.5 - Prob. 42PECh. 7.5 - Prob. 43PECh. 7.5 - For Exercises 41–50, simplify the complex...Ch. 7.5 - Prob. 45PECh. 7.5 - Prob. 46PECh. 7.5 - Prob. 47PECh. 7.5 - Prob. 48PECh. 7.5 - Prob. 49PECh. 7.5 - Prob. 50PECh. 7.5 - Prob. 51PECh. 7.5 - Prob. 52PECh. 7.6 - Prob. 1SPCh. 7.6 - Prob. 2SPCh. 7.6 - Prob. 3SPCh. 7.6 - Prob. 4SPCh. 7.6 - Solve the equation. − 8 x 2 + 6 x + 8 + x x + 4 =...Ch. 7.6 - Prob. 6SPCh. 7.6 - Prob. 7SPCh. 7.6 - Solve the formula for x. y = 3 x − 2Ch. 7.6 - Prob. 9SPCh. 7.6 - Prob. 1PECh. 7.6 - Prob. 2PECh. 7.6 - Prob. 3PECh. 7.6 - Prob. 4PECh. 7.6 - Prob. 5PECh. 7.6 - Prob. 6PECh. 7.6 - Prob. 7PECh. 7.6 - Prob. 8PECh. 7.6 - Prob. 9PECh. 7.6 - Prob. 10PECh. 7.6 - Prob. 11PECh. 7.6 - Prob. 12PECh. 7.6 - Prob. 13PECh. 7.6 - Prob. 14PECh. 7.6 - Prob. 15PECh. 7.6 - Identify the LCD of all the denominators in the...Ch. 7.6 - Prob. 17PECh. 7.6 - Prob. 18PECh. 7.6 - Prob. 19PECh. 7.6 - Prob. 20PECh. 7.6 - Prob. 21PECh. 7.6 - Prob. 22PECh. 7.6 - Prob. 23PECh. 7.6 - Prob. 24PECh. 7.6 - Prob. 25PECh. 7.6 - For Exercises 17–46, solve the equations. (See...Ch. 7.6 - Prob. 27PECh. 7.6 - Prob. 28PECh. 7.6 - Prob. 29PECh. 7.6 - Prob. 30PECh. 7.6 - Prob. 31PECh. 7.6 - Prob. 32PECh. 7.6 - Prob. 33PECh. 7.6 - Prob. 34PECh. 7.6 - Prob. 35PECh. 7.6 - Prob. 36PECh. 7.6 - Prob. 37PECh. 7.6 - Prob. 38PECh. 7.6 - Prob. 39PECh. 7.6 - Prob. 40PECh. 7.6 - Prob. 41PECh. 7.6 - Prob. 42PECh. 7.6 - Prob. 43PECh. 7.6 - For Exercises 17–46, solve the equations. (See...Ch. 7.6 - Prob. 45PECh. 7.6 - Prob. 46PECh. 7.6 - Prob. 47PECh. 7.6 - Prob. 48PECh. 7.6 - Prob. 49PECh. 7.6 - Prob. 50PECh. 7.6 - Prob. 51PECh. 7.6 - Prob. 52PECh. 7.6 - Prob. 53PECh. 7.6 - Prob. 54PECh. 7.6 - Prob. 55PECh. 7.6 - Prob. 56PECh. 7.6 - Prob. 57PECh. 7.6 - Prob. 58PECh. 7.6 - Prob. 59PECh. 7.6 - Prob. 60PECh. 7.6 - Prob. 61PECh. 7.6 - Prob. 62PECh. 7.6 - Prob. 63PECh. 7.6 - Prob. 64PECh. 7.6 - Prob. 65PECh. 7.6 - Prob. 66PECh. 7.6 - For Exercises 51–68, solve for the indicated...Ch. 7.6 - For Exercises 51–68, solve for the indicated...Ch. 7.6 - Prob. 1PRECh. 7.6 - Prob. 2PRECh. 7.6 - Prob. 3PRECh. 7.6 - Prob. 4PRECh. 7.6 - Prob. 5PRECh. 7.6 - Prob. 6PRECh. 7.6 - Prob. 7PRECh. 7.6 - Prob. 8PRECh. 7.6 - Prob. 9PRECh. 7.6 - Prob. 10PRECh. 7.6 - Prob. 11PRECh. 7.6 - Prob. 12PRECh. 7.6 - Prob. 13PRECh. 7.6 - Prob. 14PRECh. 7.6 - Prob. 15PRECh. 7.6 - Prob. 16PRECh. 7.6 - Prob. 17PRECh. 7.6 - Prob. 18PRECh. 7.6 - Prob. 19PRECh. 7.6 - Prob. 20PRECh. 7.7 - Solve the proportion.
1.
Ch. 7.7 - Prob. 2SPCh. 7.7 - Prob. 3SPCh. 7.7 - The Sun casts a 3.2-ft shadow of a 6- ft man. At...Ch. 7.7 - Alison paddles her kayak in a river where the...Ch. 7.7 - Prob. 6SPCh. 7.7 - The computer at a bank can process and prepare the...Ch. 7.7 - Prob. 1PECh. 7.7 - For Exercises 2–7, determine whether each of the...Ch. 7.7 - For Exercises 2–7, determine whether each of the...Ch. 7.7 - Prob. 4PECh. 7.7 - Prob. 5PECh. 7.7 - For Exercises 2–7, determine whether each of the...Ch. 7.7 - Prob. 7PECh. 7.7 - For Exercises 2–7, determine whether each of the...Ch. 7.7 - For Exercises 9–22, solve the proportions. (See...Ch. 7.7 - Prob. 10PECh. 7.7 - Prob. 11PECh. 7.7 - For Exercises 9–22, solve the proportions. (See...Ch. 7.7 - Prob. 13PECh. 7.7 - Prob. 14PECh. 7.7 - For Exercises 9–22, solve the proportions. (See...Ch. 7.7 - Prob. 16PECh. 7.7 - Prob. 17PECh. 7.7 - Prob. 18PECh. 7.7 - For Exercises 9–22, solve the proportions. (See...Ch. 7.7 - Prob. 20PECh. 7.7 - Prob. 21PECh. 7.7 - Prob. 22PECh. 7.7 - Charles’ law describes the relationship between...Ch. 7.7 - Prob. 24PECh. 7.7 - For Exercises 2532, solve using proportions. Toni...Ch. 7.7 - For Exercises 25–32, solve using proportions. Tim...Ch. 7.7 - For Exercises 25–32, solve using proportions. It...Ch. 7.7 - For Exercises 25–32, solve using proportions....Ch. 7.7 - For Exercises 25–32, solve using...Ch. 7.7 - For Exercises 25–32, solve using...Ch. 7.7 - For Exercises 25–32, solve using...Ch. 7.7 - A map has a scale of 50 mi/in. If two cities...Ch. 7.7 - Prob. 33PECh. 7.7 - Prob. 34PECh. 7.7 - Prob. 35PECh. 7.7 - Prob. 36PECh. 7.7 - Prob. 37PECh. 7.7 - Prob. 38PECh. 7.7 - 39. A 6-ft-tall man standing 54 ft from a light...Ch. 7.7 - Prob. 40PECh. 7.7 - A boat travels 54 mi upstream against the current...Ch. 7.7 - A plane flies 630 mi with the wind in the same...Ch. 7.7 - Prob. 43PECh. 7.7 - A fishing boat travels 9 mi downstream with the...Ch. 7.7 - Prob. 45PECh. 7.7 - Devon can cross-country ski 5 km/hr faster than...Ch. 7.7 - 47. Floyd can walk 2 mph faster than his wife,...Ch. 7.7 - 48. Janine bikes 3 mph faster than her sister,...Ch. 7.7 - Prob. 49PECh. 7.7 - Amber jogs 10 km in 3 4 hr less time than she can...Ch. 7.7 - Prob. 51PECh. 7.7 - The CUT-IT-OUT lawn mowing company consists of two...Ch. 7.7 - Prob. 53PECh. 7.7 - Prob. 54PECh. 7 - For the rational expression t − 2 t + 9 a....Ch. 7 - Prob. 2RECh. 7 - Which of the rational expressions are equal to...Ch. 7 - For Exercises 4–13, identify the restricted...Ch. 7 - For Exercises 4–13, identify the restricted...Ch. 7 - For Exercises 4–13, identify the restricted...Ch. 7 - Prob. 7RECh. 7 - Prob. 8RECh. 7 - Prob. 9RECh. 7 - Prob. 10RECh. 7 - For Exercises 4–13, identify the restricted...Ch. 7 - Prob. 12RECh. 7 - For Exercises 4–13, identify the restricted...Ch. 7 - Prob. 14RECh. 7 - For Exercises 14–27, multiply or divide as...Ch. 7 - Prob. 16RECh. 7 - For Exercises 14–27, multiply or divide as...Ch. 7 - Prob. 18RECh. 7 - For Exercises 14–27, multiply or divide as...Ch. 7 - For Exercises 14–27, multiply or divide as...Ch. 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 - For Exercises 32–37, write each fraction as an...Ch. 7 - Prob. 38RECh. 7 - Prob. 39RECh. 7 - Prob. 40RECh. 7 - Prob. 41RECh. 7 - Prob. 42RECh. 7 - Prob. 43RECh. 7 - For Exercises 38–49, add or subtract as...Ch. 7 - For Exercises 38–49, add or subtract as indicated....Ch. 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 - Prob. 63RECh. 7 - Prob. 64RECh. 7 - Prob. 65RECh. 7 - Prob. 66RECh. 7 - Prob. 67RECh. 7 - Prob. 68RECh. 7 - For Exercises 69–70, solve the proportions. m + 2...Ch. 7 - For Exercises 69–70, solve the proportions.
70.
Ch. 7 - 71. A bag of popcorn states that it contains 4 g...Ch. 7 - Bud goes 10 mph faster on his motorcycle than Ed...Ch. 7 - Prob. 73RECh. 7 - Prob. 74RECh. 7 - For Exercises 1-2, a. Identify the restricted...Ch. 7 - For Exercises 1-2, a. Identify the restricted...Ch. 7 - Identify the rational expressions that are equal...Ch. 7 - Prob. 4TCh. 7 - Prob. 5TCh. 7 - Prob. 6TCh. 7 - Prob. 7TCh. 7 - Prob. 8TCh. 7 - Prob. 9TCh. 7 - Prob. 10TCh. 7 - For Exercises 5–11, perform the indicated...Ch. 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 - 21. Two printers working together can complete a...Ch. 7 - Prob. 22TCh. 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 - Factor completely. 10 c d + 5 d − 6 c − 3Ch. 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 - Prob. 19CRECh. 7 - A group of teenagers buys 2 large popcorns and 6...
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- In Exercises 59–64, solve and check each linear equation. 59. 2x – 5 = 7 60. 5x + 20 = 3x 61. 7(x – 4) = x + 2 62. 1 - 2(6 – x) = 3x + 2 63. 2(x – 4) + 3(x + 5) = 2x – 2 64. 2x 4(5x + 1) = 3x + 17arrow_forwardIn Exercises 23–25, solve each equation. If the solution set is Ø or (-0, ), classify the equation as an inconsistent equation or an identity. 23. 3(2x – 4) = 9 – 3(x + 1) 2x 24. x - 4 x + 1 4 2 4 25. 3(x – 4) + x = 2(6 + 2x)arrow_forwardIn 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|arrow_forward
- Solve the variation problems in Exercises 68–73. 68. A company's profit varies directly as the number of products it sells. The company makes a profit of $1175 on the sale of 25 products. What is the company's profit when it sells 105 products? 69. The distance that a body falls from rest varies directly as the square of the time of the fall. If skydivers fall 144 feet in 3 seconds, how far will they fall in 10 seconds? 70. The pitch of a musical tone varies inversely as its wavelength. A tone has a pitch of 660 vibrations per second and a wavelength of 1.6 feet. What is the pitch of a tone that has a wavelength of 2.4 feet? 71. The loudness of a stereo speaker, measured in decibels, varies inversely as the square of your distance from the speaker. When you are 8 feet from the speaker, the loudness is 28 decibels. What is the loudness when you are 4 feet from the speaker? 72. The time required to assemble computers varies directly as the number of computers assembled and inversely as…arrow_forwardplease solve asaparrow_forwardIn Exercises 43–54, solve each absolute value equation or indicate the equation has no solution. 43. |x – 2| = 7 45. |2x – 1| = 5 47. 2|3x – 2| = 14 44. |x + 1| = 5 46. |2r – 3| = 11 48. 3|2x – 1| = 21 %3D %3D 5 24 - + 6 = 18 50. 4 1 x + 7 = 10 51. |x + 1| + 5 = 3 53. |2x – 1| + 3 = 3 52. |x + 1| + 6 = 2 54. |3x – 2| + 4 = 4arrow_forward
- Exercises 105-120: Complete the following. (a) Write the equation as ax² + bx + e = 0 with a > 0. (b) Calculate the discriminant b² – 4ac and determine the number of real solutions. (c) Solve the equation. 105. 3x² = 12 106. 8x - 2 = 14 107. x² – 2x = -1 108. 6x² = 4x 109. 4x = x? 110. 16x + 9 = 24x 111. x² + 1 = x 112. 2x² + x = 2 113. 2x² + 3x = 12 – 2x 114. 3x² + 3 = 5x 115. x(x – 4) = -4 116. + 3x = x – 4 117. x(x + 2) = -13 118. 4x = 6 + x? 119. 3x = 1- x 120. x(5x – 3) = 1arrow_forwardDo you agree or disagree a0=1arrow_forwardSolve 5.arrow_forward
- In Exercises 65–69, solve each equation. 2x 65. 3 1 + 1 6. 66. 2 10 2 2x 67. 3 68. 4 2 + 3 4 Зх + 1 13 1 - x 69. 3 2 4 6 ||arrow_forwardSolve 6.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_forward
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