Intermediate Algebra for College Students (7th Edition)
7th Edition
ISBN: 9780134178943
Author: Robert F. Blitzer
Publisher: PEARSON
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Chapter 8.2, Problem 72E
To determine
To calculate: The solution of the equation
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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 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)
Chapter 8 Solutions
Intermediate Algebra for College Students (7th Edition)
Ch. 8.1 - Check Point 1
Solve: .
Ch. 8.1 - Prob. 2CPCh. 8.1 - Prob. 3CPCh. 8.1 - Prob. 4CPCh. 8.1 - Prob. 5CPCh. 8.1 - Prob. 6CPCh. 8.1 - Prob. 7CPCh. 8.1 - Prob. 8CPCh. 8.1 - Prob. 9CPCh. 8.1 - Prob. 10CP
Ch. 8.1 - Prob. 1CVCCh. 8.1 - Prob. 2CVCCh. 8.1 - Prob. 3CVCCh. 8.1 - Prob. 4CVCCh. 8.1 - Prob. 5CVCCh. 8.1 - Prob. 6CVCCh. 8.1 - Prob. 7CVCCh. 8.1 - Fill in each blank so that the resulting statement...Ch. 8.1 - Prob. 9CVCCh. 8.1 - In Exercises 122, solve each equation by the...Ch. 8.1 - Prob. 2ECh. 8.1 - In Exercises 1–22, solve each equation by the...Ch. 8.1 - Prob. 4ECh. 8.1 - In Exercises 122, solve each equation by the...Ch. 8.1 - Prob. 6ECh. 8.1 - In Exercises 122, solve each equation by the...Ch. 8.1 - Prob. 8ECh. 8.1 - In Exercises 1–22, solve each equation by the...Ch. 8.1 - Prob. 10ECh. 8.1 - In Exercises 1–22, solve each equation by the...Ch. 8.1 - Prob. 12ECh. 8.1 - In Exercises 122, solve each equation by the...Ch. 8.1 - In Exercises 122, solve each equation by the...Ch. 8.1 - In Exercises 122, solve each equation by the...Ch. 8.1 - Prob. 16ECh. 8.1 - Prob. 17ECh. 8.1 - In Exercises 122, solve each equation by the...Ch. 8.1 - In Exercises 1–22, solve each equation by the...Ch. 8.1 - Prob. 20ECh. 8.1 - In Exercises 1–22, solve each equation by the...Ch. 8.1 - In Exercises 122, solve each equation by the...Ch. 8.1 - In Exercises 23–34, determine the constant that...Ch. 8.1 - In Exercises 2334, determine the constant that...Ch. 8.1 - In Exercises 23–34, determine the constant that...Ch. 8.1 - Prob. 26ECh. 8.1 - In Exercises 2334, determine the constant that...Ch. 8.1 - Prob. 28ECh. 8.1 - In Exercises 2334, determine the constant that...Ch. 8.1 - Prob. 30ECh. 8.1 - In Exercises 2334, determine the constant that...Ch. 8.1 - Prob. 32ECh. 8.1 - In Exercises 23–34, determine the constant that...Ch. 8.1 - Prob. 34ECh. 8.1 - In Exercises 3558, solve each quadratic equation...Ch. 8.1 - Prob. 36ECh. 8.1 - In Exercises 3558, solve each quadratic equation...Ch. 8.1 - In Exercises 3558, solve each quadratic equation...Ch. 8.1 - In Exercises 3558, solve each quadratic equation...Ch. 8.1 - In Exercises 3558, solve each quadratic equation...Ch. 8.1 - In Exercises 3558, solve each quadratic equation...Ch. 8.1 - Prob. 42ECh. 8.1 - In Exercises 35–58, solve each quadratic equation...Ch. 8.1 - In Exercises 35–58, solve each quadratic equation...Ch. 8.1 - In Exercises 3558, solve each quadratic equation...Ch. 8.1 - Prob. 46ECh. 8.1 - In Exercises 3558, solve each quadratic equation...Ch. 8.1 - Prob. 48ECh. 8.1 - In Exercises 3558, solve each quadratic equation...Ch. 8.1 - Prob. 50ECh. 8.1 - In Exercises 3558, solve each quadratic equation...Ch. 8.1 - Prob. 52ECh. 8.1 - Prob. 53ECh. 8.1 - In Exercises 3558, solve each quadratic equation...Ch. 8.1 - Prob. 55ECh. 8.1 - Prob. 56ECh. 8.1 - Prob. 57ECh. 8.1 - In Exercises 35–58, solve each quadratic equation...Ch. 8.1 - Prob. 59ECh. 8.1 - Prob. 60ECh. 8.1 - Prob. 61ECh. 8.1 - Prob. 62ECh. 8.1 - Prob. 63ECh. 8.1 - Prob. 64ECh. 8.1 - Prob. 65ECh. 8.1 - Prob. 66ECh. 8.1 - Prob. 67ECh. 8.1 - Prob. 68ECh. 8.1 - Prob. 69ECh. 8.1 - Prob. 70ECh. 8.1 - Prob. 71ECh. 8.1 - Prob. 72ECh. 8.1 - Prob. 73ECh. 8.1 - Prob. 74ECh. 8.1 - Prob. 75ECh. 8.1 - Prob. 76ECh. 8.1 - Prob. 77ECh. 8.1 - Prob. 78ECh. 8.1 - Prob. 79ECh. 8.1 - Prob. 80ECh. 8.1 - Prob. 81ECh. 8.1 - Prob. 82ECh. 8.1 - Prob. 83ECh. 8.1 - Prob. 84ECh. 8.1 - Prob. 85ECh. 8.1 - Prob. 86ECh. 8.1 - Prob. 87ECh. 8.1 - Prob. 88ECh. 8.1 - A square flower bed is to be enlarged by adding 2...Ch. 8.1 - Prob. 90ECh. 8.1 - Prob. 91ECh. 8.1 - Prob. 92ECh. 8.1 - Prob. 93ECh. 8.1 - Prob. 94ECh. 8.1 - Prob. 95ECh. 8.1 - Prob. 96ECh. 8.1 - Prob. 97ECh. 8.1 - Prob. 98ECh. 8.1 - Prob. 99ECh. 8.1 - Prob. 100ECh. 8.1 - Make Sense? In Exercises 100103, determine whether...Ch. 8.1 - Prob. 102ECh. 8.1 - Prob. 103ECh. 8.1 - Prob. 104ECh. 8.1 - Prob. 105ECh. 8.1 - Prob. 106ECh. 8.1 - Prob. 107ECh. 8.1 - Prob. 108ECh. 8.1 - Prob. 109ECh. 8.1 - Prob. 110ECh. 8.1 - Prob. 111ECh. 8.1 - Prob. 112ECh. 8.1 - Prob. 113ECh. 8.1 - Divide: (x45x3+2x26)(x3). (Section 6.5, Example 1)Ch. 8.1 - Prob. 115ECh. 8.1 - Prob. 116ECh. 8.1 - Exercises 115–117 will help you prepare for the...Ch. 8.2 - Check Point 1
Solving using the quadratic formula:...Ch. 8.2 - Check Point 2
Solve using the quadratic formula:...Ch. 8.2 - Prob. 3CPCh. 8.2 - Prob. 4CPCh. 8.2 - Prob. 5CPCh. 8.2 - Prob. 6CPCh. 8.2 - Prob. 1CVCCh. 8.2 - Prob. 2CVCCh. 8.2 - Prob. 3CVCCh. 8.2 - Prob. 4CVCCh. 8.2 - Prob. 5CVCCh. 8.2 - Prob. 6CVCCh. 8.2 - Prob. 7CVCCh. 8.2 - Prob. 8CVCCh. 8.2 - Prob. 9CVCCh. 8.2 - Prob. 10CVCCh. 8.2 - Prob. 11CVCCh. 8.2 - Prob. 12CVCCh. 8.2 - Practice Exercises In Exercises 118, solve each...Ch. 8.2 - Prob. 2ECh. 8.2 - Practice Exercises
In Exercises 1–18, solve each...Ch. 8.2 - Prob. 4ECh. 8.2 - Practice Exercises In Exercises 118, solve each...Ch. 8.2 - Prob. 6ECh. 8.2 - Practice Exercises In Exercises 118, solve each...Ch. 8.2 - Practice Exercises In Exercises 118, solve each...Ch. 8.2 - Practice Exercises In Exercises 118, solve each...Ch. 8.2 - Prob. 10ECh. 8.2 - Practice Exercises
In Exercises 1–18, solve each...Ch. 8.2 - Prob. 12ECh. 8.2 - Practice Exercises
In Exercises 1–18, solve each...Ch. 8.2 - Practice Exercises In Exercises 118, solve each...Ch. 8.2 - Practice Exercises
In Exercises 1–18, solve each...Ch. 8.2 - Prob. 16ECh. 8.2 - Practice Exercises In Exercises 118, solve each...Ch. 8.2 - Prob. 18ECh. 8.2 - Prob. 19ECh. 8.2 - Prob. 20ECh. 8.2 - In Exercises 1930, compute the discriminant. Then...Ch. 8.2 - Prob. 22ECh. 8.2 - In Exercises 19–30, compute the discriminant. Then...Ch. 8.2 - Prob. 24ECh. 8.2 - Prob. 25ECh. 8.2 - Prob. 26ECh. 8.2 - In Exercises 19–30, compute the discriminant. Then...Ch. 8.2 - Prob. 28ECh. 8.2 - In Exercises 1930, compute the discriminant. Then...Ch. 8.2 - Prob. 30ECh. 8.2 -
In Exercises 31–50, solve each equation by the...Ch. 8.2 - Prob. 32ECh. 8.2 - In Exercises 31–50, solve each equation by the...Ch. 8.2 - Prob. 34ECh. 8.2 - Prob. 35ECh. 8.2 - Prob. 36ECh. 8.2 - In Exercises 3150, solve each equation by the...Ch. 8.2 - Prob. 38ECh. 8.2 - In Exercises 31–50, solve each equation by the...Ch. 8.2 - Prob. 40ECh. 8.2 - In Exercises 3150, solve each equation by the...Ch. 8.2 - Prob. 42ECh. 8.2 - In Exercises 3150, solve each equation by the...Ch. 8.2 - Prob. 44ECh. 8.2 - In Exercises 3150, solve each equation by the...Ch. 8.2 - Prob. 46ECh. 8.2 - In Exercises 31–50, solve each equation by the...Ch. 8.2 - Prob. 48ECh. 8.2 - In Exercises 31–50, solve each equation by the...Ch. 8.2 - Prob. 50ECh. 8.2 - In Exercises 51–64, write a quadratic equation in...Ch. 8.2 - Prob. 52ECh. 8.2 - Prob. 53ECh. 8.2 - Prob. 54ECh. 8.2 - Prob. 55ECh. 8.2 - Prob. 56ECh. 8.2 - Prob. 57ECh. 8.2 - Prob. 58ECh. 8.2 - Prob. 59ECh. 8.2 - Prob. 60ECh. 8.2 - Prob. 61ECh. 8.2 - Prob. 62ECh. 8.2 - Prob. 63ECh. 8.2 - Prob. 64ECh. 8.2 - Prob. 65ECh. 8.2 - Prob. 66ECh. 8.2 - Prob. 67ECh. 8.2 - Prob. 68ECh. 8.2 - Prob. 69ECh. 8.2 - Prob. 70ECh. 8.2 - Prob. 71ECh. 8.2 - Prob. 72ECh. 8.2 - Prob. 73ECh. 8.2 - Prob. 74ECh. 8.2 - Prob. 75ECh. 8.2 - Prob. 76ECh. 8.2 - Prob. 77ECh. 8.2 - Prob. 78ECh. 8.2 - Prob. 79ECh. 8.2 - Prob. 80ECh. 8.2 - Prob. 81ECh. 8.2 - Prob. 82ECh. 8.2 - The longer leg of a right triangle exceeds the...Ch. 8.2 - The hypotenuse of a right triangle is 6 feet long....Ch. 8.2 - A rain gutter is made from sheets of aluminum that...Ch. 8.2 - Prob. 86ECh. 8.2 - Prob. 87ECh. 8.2 - Prob. 88ECh. 8.2 - Prob. 89ECh. 8.2 - Prob. 90ECh. 8.2 - Prob. 91ECh. 8.2 - Prob. 92ECh. 8.2 - Prob. 93ECh. 8.2 - Prob. 94ECh. 8.2 - Prob. 95ECh. 8.2 - Prob. 96ECh. 8.2 - Prob. 97ECh. 8.2 - Prob. 98ECh. 8.2 - Prob. 99ECh. 8.2 - Prob. 100ECh. 8.2 - Prob. 101ECh. 8.2 - Prob. 102ECh. 8.2 - Prob. 103ECh. 8.2 - Prob. 104ECh. 8.2 - Prob. 105ECh. 8.2 - Prob. 106ECh. 8.2 - Prob. 107ECh. 8.2 - Prob. 108ECh. 8.2 - Prob. 109ECh. 8.2 - Prob. 110ECh. 8.2 - Prob. 111ECh. 8.2 - Prob. 112ECh. 8.2 - Prob. 113ECh. 8.2 - Prob. 114ECh. 8.3 - Check Point 1 Graph the quadratic function...Ch. 8.3 - Prob. 2CPCh. 8.3 - Check Point 3
Find the vertex for the parabola...Ch. 8.3 - Prob. 4CPCh. 8.3 - Prob. 5CPCh. 8.3 - Prob. 6CPCh. 8.3 - Prob. 7CPCh. 8.3 - Prob. 8CPCh. 8.3 - Prob. 1CVCCh. 8.3 - Prob. 2CVCCh. 8.3 - Prob. 3CVCCh. 8.3 - Prob. 4CVCCh. 8.3 - Prob. 5CVCCh. 8.3 - Prob. 6CVCCh. 8.3 - Prob. 7CVCCh. 8.3 - Prob. 1ECh. 8.3 - In Exercises 1–4, the graph of a quadratic...Ch. 8.3 - In Exercises 14, the graph of a quadratic function...Ch. 8.3 - In Exercises 14, the graph of a quadratic function...Ch. 8.3 - In Exercises 58, the graph of a quadratic function...Ch. 8.3 - In Exercises 5–8, the graph of a quadratic...Ch. 8.3 - In Exercises 5–8, the graph of a quadratic...Ch. 8.3 - In Exercises 5–8, the graph of a quadratic...Ch. 8.3 - In Exercises 916, find the coordinates of the...Ch. 8.3 - In Exercises 9–16, find the coordinates of the...Ch. 8.3 - In Exercises 9–16, find the coordinates of the...Ch. 8.3 - Prob. 12ECh. 8.3 - In Exercises 9–16, find the coordinates of the...Ch. 8.3 - In Exercises 9–16, find the coordinates of the...Ch. 8.3 - In Exercises 9–16, find the coordinates of the...Ch. 8.3 - Prob. 16ECh. 8.3 - In Exercises 1738, use the vertex and intercepts...Ch. 8.3 - Prob. 18ECh. 8.3 - In Exercises 17–38, use the vertex and intercepts...Ch. 8.3 - In Exercises 17–38, use the vertex and intercepts...Ch. 8.3 - In Exercises 1738, use the vertex and intercepts...Ch. 8.3 - Prob. 22ECh. 8.3 - In Exercises 1738, use the vertex and intercepts...Ch. 8.3 - Prob. 24ECh. 8.3 - In Exercises 1738, use the vertex and intercepts...Ch. 8.3 - Prob. 26ECh. 8.3 - In Exercises 1738, use the vertex and intercepts...Ch. 8.3 - Prob. 28ECh. 8.3 - In Exercises 17–38, use the vertex and intercepts...Ch. 8.3 - Prob. 30ECh. 8.3 - In Exercises 1738, use the vertex and intercepts...Ch. 8.3 - In Exercises 1738, use the vertex and intercepts...Ch. 8.3 - In Exercises 1738, use the vertex and intercepts...Ch. 8.3 - In Exercises 17–38, use the vertex and intercepts...Ch. 8.3 - In Exercises 1738, use the vertex and intercepts...Ch. 8.3 - Prob. 36ECh. 8.3 - In Exercises 17–38, use the vertex and intercepts...Ch. 8.3 - In Exercises 1738, use the vertex and intercepts...Ch. 8.3 - In Exercises 3944, an equation of a quadratic...Ch. 8.3 - Prob. 40ECh. 8.3 - In Exercises 39–44, an equation of a quadratic...Ch. 8.3 - Prob. 42ECh. 8.3 - In Exercises 3944, an equation of a quadratic...Ch. 8.3 - Prob. 44ECh. 8.3 - In Exercises 45–48, give the domain and the range...Ch. 8.3 - In Exercises 45–48, give the domain and the range...Ch. 8.3 - In Exercises 45–48, give the domain and the range...Ch. 8.3 - Prob. 48ECh. 8.3 - In Exercises 49–52, write an equation of the...Ch. 8.3 - Prob. 50ECh. 8.3 - In Exercises 49–52, write an equation of the...Ch. 8.3 - Prob. 52ECh. 8.3 - In Exercises 5356, write an equation of the...Ch. 8.3 - Prob. 54ECh. 8.3 - In Exercises 53–56, write an equation of the...Ch. 8.3 - Prob. 56ECh. 8.3 - 57. A person standing close to the edge on the top...Ch. 8.3 - 58. A person standing close to the edge on the top...Ch. 8.3 - 59. Among all pairs of numbers whose sum is 16,...Ch. 8.3 - Prob. 60ECh. 8.3 - Among all pairs of numbers whose difference is 16,...Ch. 8.3 - Prob. 62ECh. 8.3 - Prob. 63ECh. 8.3 - Prob. 64ECh. 8.3 - Prob. 65ECh. 8.3 - Prob. 66ECh. 8.3 - Prob. 67ECh. 8.3 - Prob. 68ECh. 8.3 - P(x)=R(x)C(x), where R and C are the revenue and...Ch. 8.3 - Prob. 70ECh. 8.3 - Prob. 71ECh. 8.3 - Prob. 72ECh. 8.3 - Prob. 73ECh. 8.3 - 74. Describe how to find a parabola’s vertex if...Ch. 8.3 - Prob. 75ECh. 8.3 - Prob. 76ECh. 8.3 - Prob. 77ECh. 8.3 - Prob. 78ECh. 8.3 - Prob. 79ECh. 8.3 - Prob. 80ECh. 8.3 - Prob. 81ECh. 8.3 - Prob. 82ECh. 8.3 - Prob. 83ECh. 8.3 - Prob. 84ECh. 8.3 - Prob. 85ECh. 8.3 - Prob. 86ECh. 8.3 - Prob. 87ECh. 8.3 - Prob. 88ECh. 8.3 - Prob. 89ECh. 8.3 - Prob. 90ECh. 8.3 - Prob. 91ECh. 8.3 - Prob. 92ECh. 8.3 - Prob. 93ECh. 8.3 - Prob. 94ECh. 8.3 - Prob. 95ECh. 8.3 - Prob. 96ECh. 8.3 - Prob. 97ECh. 8.3 - Prob. 98ECh. 8.3 - Prob. 99ECh. 8.3 - Prob. 100ECh. 8.3 - Prob. 101ECh. 8.3 - Prob. 1MCCPCh. 8.3 - Prob. 2MCCPCh. 8.3 - Prob. 3MCCPCh. 8.3 - Prob. 4MCCPCh. 8.3 - Prob. 5MCCPCh. 8.3 - Prob. 6MCCPCh. 8.3 - In Exercises 1–13, solve each equation by the...Ch. 8.3 - Prob. 8MCCPCh. 8.3 - Prob. 9MCCPCh. 8.3 - Prob. 10MCCPCh. 8.3 - Prob. 11MCCPCh. 8.3 - Prob. 12MCCPCh. 8.3 - Prob. 13MCCPCh. 8.3 - Prob. 14MCCPCh. 8.3 - Prob. 15MCCPCh. 8.3 - Prob. 16MCCPCh. 8.3 - Prob. 17MCCPCh. 8.3 - Prob. 18MCCPCh. 8.3 - Prob. 19MCCPCh. 8.3 - Prob. 20MCCPCh. 8.3 - Prob. 21MCCPCh. 8.3 - Prob. 22MCCPCh. 8.3 - Prob. 23MCCPCh. 8.3 - Prob. 24MCCPCh. 8.3 - Prob. 25MCCPCh. 8.4 - Check Point 1 Solve: x45x2+6=0.Ch. 8.4 - Prob. 2CPCh. 8.4 - Prob. 3CPCh. 8.4 - Prob. 4CPCh. 8.4 - Prob. 5CPCh. 8.4 - Prob. 1CVCCh. 8.4 - Prob. 2CVCCh. 8.4 - Prob. 3CVCCh. 8.4 - Prob. 4CVCCh. 8.4 - Prob. 5CVCCh. 8.4 - Practice Exercises
In Exercises 1–32, solve each...Ch. 8.4 - Prob. 2ECh. 8.4 - Practice Exercises In Exercises 132, solve each...Ch. 8.4 - Practice Exercises
In Exercises 1–32, solve each...Ch. 8.4 - Practice Exercises In Exercises 132, solve each...Ch. 8.4 - Prob. 6ECh. 8.4 - Practice Exercises
In Exercises 1–32, solve each...Ch. 8.4 - Prob. 8ECh. 8.4 - Practice Exercises
In Exercises 1–32, solve each...Ch. 8.4 - Prob. 10ECh. 8.4 - Practice Exercises
In Exercises 1–32, solve each...Ch. 8.4 - Prob. 12ECh. 8.4 - Practice Exercises
In Exercises 1–32, solve each...Ch. 8.4 - Prob. 14ECh. 8.4 - Practice Exercises In Exercises 132, solve each...Ch. 8.4 - Prob. 16ECh. 8.4 - Practice Exercises In Exercises 132, solve each...Ch. 8.4 - Prob. 18ECh. 8.4 - Practice Exercises In Exercises 132, solve each...Ch. 8.4 - Prob. 20ECh. 8.4 - Practice Exercises
In Exercises 1–32, solve each...Ch. 8.4 - Practice Exercises In Exercises 132, solve each...Ch. 8.4 - Practice Exercises In Exercises 132, solve each...Ch. 8.4 - Prob. 24ECh. 8.4 - Practice Exercises In Exercises 132, solve each...Ch. 8.4 - Prob. 26ECh. 8.4 - Practice Exercises
In Exercises 1–32, solve each...Ch. 8.4 - Prob. 28ECh. 8.4 - Practice Exercises
In Exercises 1–32, solve each...Ch. 8.4 - Prob. 30ECh. 8.4 - Prob. 31ECh. 8.4 - Prob. 32ECh. 8.4 - Prob. 33ECh. 8.4 - Prob. 34ECh. 8.4 - Prob. 35ECh. 8.4 - Prob. 36ECh. 8.4 - Prob. 37ECh. 8.4 - Prob. 38ECh. 8.4 - Prob. 39ECh. 8.4 - Prob. 40ECh. 8.4 - Prob. 41ECh. 8.4 - Prob. 42ECh. 8.4 - Prob. 43ECh. 8.4 - Prob. 44ECh. 8.4 - Prob. 45ECh. 8.4 - Prob. 46ECh. 8.4 - Prob. 47ECh. 8.4 - Prob. 48ECh. 8.4 - Prob. 49ECh. 8.4 - Prob. 50ECh. 8.4 - Prob. 51ECh. 8.4 - Prob. 52ECh. 8.4 - Prob. 53ECh. 8.4 - Prob. 54ECh. 8.4 - Prob. 55ECh. 8.4 - Prob. 56ECh. 8.4 - Prob. 57ECh. 8.4 - Prob. 58ECh. 8.4 - Prob. 59ECh. 8.4 - Prob. 60ECh. 8.4 - Prob. 61ECh. 8.4 - Prob. 62ECh. 8.4 - Prob. 63ECh. 8.4 - Prob. 64ECh. 8.4 - Prob. 65ECh. 8.4 - Prob. 66ECh. 8.4 - Prob. 67ECh. 8.4 - Prob. 68ECh. 8.4 - Prob. 69ECh. 8.4 - Prob. 70ECh. 8.4 - Prob. 71ECh. 8.4 - Prob. 72ECh. 8.4 - Prob. 73ECh. 8.4 - Prob. 74ECh. 8.4 - Prob. 75ECh. 8.4 - Prob. 76ECh. 8.5 - Check Point 1
Solve and graph the solution set on...Ch. 8.5 - Prob. 2CPCh. 8.5 - Prob. 3CPCh. 8.5 - Prob. 4CPCh. 8.5 - Prob. 5CPCh. 8.5 - Prob. 6CPCh. 8.5 - Prob. 1CVCCh. 8.5 - Prob. 2CVCCh. 8.5 - Prob. 3CVCCh. 8.5 - Prob. 4CVCCh. 8.5 - Fill in each blank so that the resulting statement...Ch. 8.5 - Prob. 1ECh. 8.5 - Prob. 2ECh. 8.5 - Prob. 3ECh. 8.5 - Prob. 4ECh. 8.5 - Prob. 5ECh. 8.5 - Prob. 6ECh. 8.5 - Prob. 7ECh. 8.5 - Prob. 8ECh. 8.5 - Prob. 9ECh. 8.5 - Prob. 10ECh. 8.5 - Prob. 11ECh. 8.5 - Prob. 12ECh. 8.5 - Prob. 13ECh. 8.5 - Prob. 14ECh. 8.5 - Prob. 15ECh. 8.5 - Prob. 16ECh. 8.5 - Prob. 17ECh. 8.5 - Prob. 18ECh. 8.5 - Prob. 19ECh. 8.5 - Prob. 20ECh. 8.5 - Prob. 21ECh. 8.5 - Prob. 22ECh. 8.5 - Prob. 23ECh. 8.5 - Prob. 24ECh. 8.5 - Prob. 25ECh. 8.5 - Solve each polynomial inequality in Exercises 1–40...Ch. 8.5 - Solve each polynomial inequality in Exercises 1–40...Ch. 8.5 - Solve each polynomial inequality in Exercises 1–40...Ch. 8.5 - Solve each polynomial inequality in Exercises 1–40...Ch. 8.5 - Solve each polynomial inequality in Exercises 1–40...Ch. 8.5 - Solve each polynomial inequality in Exercises 140...Ch. 8.5 - Solve each polynomial inequality in Exercises 1–40...Ch. 8.5 - Solve each polynomial inequality in Exercises 140...Ch. 8.5 - Solve each polynomial inequality in Exercises 1–40...Ch. 8.5 - Solve each polynomial inequality in Exercises 1–40...Ch. 8.5 - Solve each polynomial inequality in Exercises 140...Ch. 8.5 - Solve each polynomial inequality in Exercises 1–40...Ch. 8.5 - Prob. 38ECh. 8.5 - Prob. 39ECh. 8.5 - Prob. 40ECh. 8.5 - Prob. 41ECh. 8.5 - Prob. 42ECh. 8.5 - Prob. 43ECh. 8.5 - Prob. 44ECh. 8.5 - Prob. 45ECh. 8.5 - Prob. 46ECh. 8.5 - Solve each rational inequality in Exercises 41–56...Ch. 8.5 - Prob. 48ECh. 8.5 - Prob. 49ECh. 8.5 - Prob. 50ECh. 8.5 - Prob. 51ECh. 8.5 - Prob. 52ECh. 8.5 - Prob. 53ECh. 8.5 - Prob. 54ECh. 8.5 - Prob. 55ECh. 8.5 - Prob. 56ECh. 8.5 - Prob. 57ECh. 8.5 - Prob. 58ECh. 8.5 - Prob. 59ECh. 8.5 - In Exercises 57–60, use the given functions to...Ch. 8.5 - Solve each inequality in Exercises 6166 and graph...Ch. 8.5 - Solve each inequality in Exercises 6166 and graph...Ch. 8.5 - Solve each inequality in Exercises 6166 and graph...Ch. 8.5 - Solve each inequality in Exercises 61–66 and graph...Ch. 8.5 - Solve each inequality in Exercises 6166 and graph...Ch. 8.5 - Prob. 66ECh. 8.5 - Prob. 67ECh. 8.5 - Prob. 68ECh. 8.5 - Prob. 69ECh. 8.5 - Prob. 70ECh. 8.5 - Prob. 71ECh. 8.5 - Prob. 72ECh. 8.5 - Prob. 73ECh. 8.5 - The functions f(x)=0.0875x20.4x+66.6 Dry pavement...Ch. 8.5 - Prob. 75ECh. 8.5 - Prob. 76ECh. 8.5 - Prob. 77ECh. 8.5 - Prob. 78ECh. 8.5 - Prob. 79ECh. 8.5 - What is a rational inequality?Ch. 8.5 - Prob. 81ECh. 8.5 - Prob. 82ECh. 8.5 - Prob. 83ECh. 8.5 - Prob. 84ECh. 8.5 - Prob. 85ECh. 8.5 - Prob. 86ECh. 8.5 - Prob. 87ECh. 8.5 - The graph shows stopping distances for trucks at...Ch. 8.5 - Prob. 89ECh. 8.5 - Make Sense? In Exercises 9093, determine whether...Ch. 8.5 - Make Sense? In Exercises 90–93, determine whether...Ch. 8.5 - Prob. 92ECh. 8.5 - Prob. 93ECh. 8.5 - Prob. 94ECh. 8.5 - Prob. 95ECh. 8.5 - Prob. 96ECh. 8.5 - Prob. 97ECh. 8.5 - Prob. 98ECh. 8.5 - Prob. 99ECh. 8.5 - Prob. 100ECh. 8.5 - Prob. 101ECh. 8.5 - Prob. 102ECh. 8.5 - Prob. 103ECh. 8.5 - Prob. 104ECh. 8.5 - Prob. 105ECh. 8.5 - Prob. 106ECh. 8.5 - Prob. 107ECh. 8.5 - Prob. 108ECh. 8.5 - Prob. 109ECh. 8.5 - Prob. 110ECh. 8.5 - Exercises 109–111 will help you prepare for the...Ch. 8 - In Exercises 15, solve each equation by the square...Ch. 8 - In Exercises 1–5, solve each equation by the...Ch. 8 - Prob. 3RECh. 8 - In Exercises 15, solve each equation by the square...Ch. 8 - Prob. 5RECh. 8 - In Exercises 6–7, determine the constant that...Ch. 8 - Prob. 7RECh. 8 - In Exercises 810, solve each quadratic equation by...Ch. 8 - In Exercises 810, solve each quadratic equation by...Ch. 8 - Prob. 10RECh. 8 - Prob. 11RECh. 8 - Prob. 12RECh. 8 - Prob. 13RECh. 8 - In Exercises 1416, solve each equation using the...Ch. 8 - In Exercises 14–16, solve each equation using the...Ch. 8 - In Exercises 1416, solve each equation using the...Ch. 8 - In Exercises 1719, without solving the given...Ch. 8 - Prob. 18RECh. 8 - In Exercises 1719, without solving the given...Ch. 8 - In Exercises 20–26, solve each equation by the...Ch. 8 - In Exercises 2026, solve each equation by the...Ch. 8 - In Exercises 2026, solve each equation by the...Ch. 8 - Prob. 23RECh. 8 - Prob. 24RECh. 8 - Prob. 25RECh. 8 - Prob. 26RECh. 8 - Prob. 27RECh. 8 - Prob. 28RECh. 8 - Prob. 29RECh. 8 - Prob. 30RECh. 8 - Prob. 31RECh. 8 - Prob. 32RECh. 8 - Prob. 33RECh. 8 - Prob. 34RECh. 8 - Prob. 35RECh. 8 - Prob. 36RECh. 8 - Prob. 37RECh. 8 - Prob. 38RECh. 8 - Prob. 39RECh. 8 - 40. A field bordering a straight stream is to be...Ch. 8 - Prob. 41RECh. 8 - Prob. 42RECh. 8 - Prob. 43RECh. 8 - Prob. 44RECh. 8 - Prob. 45RECh. 8 - Prob. 46RECh. 8 - Prob. 47RECh. 8 - Prob. 48RECh. 8 - Prob. 49RECh. 8 - Prob. 50RECh. 8 - Prob. 51RECh. 8 - Prob. 52RECh. 8 - Prob. 53RECh. 8 - Prob. 54RECh. 8 - Prob. 1TCh. 8 - Prob. 2TCh. 8 - Prob. 3TCh. 8 - Prob. 4TCh. 8 - Prob. 5TCh. 8 - Prob. 6TCh. 8 - Prob. 7TCh. 8 - Prob. 8TCh. 8 - Prob. 9TCh. 8 - Prob. 10TCh. 8 - Prob. 11TCh. 8 - Prob. 12TCh. 8 - Prob. 13TCh. 8 - Prob. 14TCh. 8 - Prob. 15TCh. 8 - Prob. 16TCh. 8 - Prob. 17TCh. 8 - Prob. 18TCh. 8 - Prob. 19TCh. 8 - Prob. 20TCh. 8 - Prob. 21TCh. 8 - Prob. 22TCh. 8 - Prob. 23TCh. 8 - Prob. 24TCh. 8 - Prob. 25TCh. 8 - In Exercises 113, solve each equation, inequality,...Ch. 8 - Prob. 2CRECh. 8 - Prob. 3CRECh. 8 - Prob. 4CRECh. 8 - Prob. 5CRECh. 8 - Prob. 6CRECh. 8 - Prob. 7CRECh. 8 - Prob. 8CRECh. 8 - Prob. 9CRECh. 8 - Prob. 10CRECh. 8 - Prob. 11CRECh. 8 - Prob. 12CRECh. 8 - Prob. 13CRECh. 8 - Prob. 14CRECh. 8 - Prob. 15CRECh. 8 - Prob. 16CRECh. 8 - Prob. 17CRECh. 8 - Prob. 18CRECh. 8 - Prob. 19CRECh. 8 - Prob. 20CRECh. 8 - Prob. 21CRECh. 8 - Prob. 22CRECh. 8 - Prob. 23CRECh. 8 - Prob. 24CRECh. 8 - Prob. 25CRECh. 8 - Prob. 26CRECh. 8 - Prob. 27CRECh. 8 - Prob. 28CRECh. 8 - Prob. 29CRECh. 8 - Prob. 30CRECh. 8 - Prob. 31CRECh. 8 - Prob. 32CRECh. 8 - Prob. 33CRECh. 8 - Prob. 34CRECh. 8 - Prob. 35CRECh. 8 - Prob. 36CRECh. 8 - Prob. 37CRECh. 8 - Prob. 38CRECh. 8 - Prob. 39CRECh. 8 - Prob. 40CRECh. 8 - Prob. 41CRECh. 8 - Prob. 42CRE
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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 11–12, find the solution set for each equation. 11. |5x + 3| = 7 12. |6x + 1| = [4x + 15||arrow_forwardExercises 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_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_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_forwardIn 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_forward
- Use the Gauss-Jordan technique to solve3x1 – 0.1x2 – 0.2x3 = 7.850.1x1 + 7x2 – 0.3x3 = -19.30.3x1 – 0.2x2 + 10x3 = 71.4 Please solve in excel data tabling, thanks in advance.arrow_forwardIn Exercises 49–55, solve each rational equation. If an equation has no solution, so state. 3 1 + 3 49. 3 50. Зх + 4 2x - 8 1 3 6. 51. x + 5 x² 25 x + 5 52. x + 1 4x + 1 x + 2 x2 + 3x + 2 2 53. 3 - 3x .2 2 7 54. 4 x + 2 2x + 7 55. x + 5 8. x + 18 x - 4 x + x - 20arrow_forwardExercises 43–52: Complete the following. (a) Solve the equation symbolically. (b) Classify the equation as a contradiction, an identity, or a conditional equation. 43. 5x - 1 = 5x + 4 44. 7- 9: = 2(3 – 42) – z 45. 3(x - 1) = 5 46. 22 = -2(2x + 1.4) 47. 0.5(x – 2) + 5 = 0.5x + 4 48. 눈x-2(x-1)3-x + 2 2x + 1 2x 49. 50. x – 1.5 2- 3r - 1.5 51. -6 52. 0.5 (3x - 1) + 0.5x = 2x – 0.5arrow_forward
- please solve asaparrow_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_forwardSolve 6(x + 8)+4= 5(z +5) for a Submit Questionarrow_forward
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