EBK MATHEMATICS FOR THE TRADES
11th Edition
ISBN: 8220106960455
Author: CARMAN
Publisher: PEARSON
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Textbook Question
Chapter 11.1, Problem 4CE
C. Word Problems
Translate each problem statement into a system of equations and solve.
The average of two numbers is 25 and their difference is 8. What are the numbers?
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M = log
The formula
determines the magnitude of an earthquake,
where / is the intensity of the earthquake and S is the intensity of
a "standard earthquake." How many times stronger is an
earthquake with a magnitude of 8 than an earthquake with a
magnitude of 6? Show your work.
Now consider equations of the form ×-a=v
= √bx + c, where a, b, and c
are all positive integers and b>1.
(f) Create an equation of this form that has 7 as a solution and
an extraneous solution. Give the extraneous solution.
(g)
What must be true about the value of bx + c to ensure that
there is a real number solution to the equation? Explain.
The equation ×+ 2 = √3x+10 is of the form ×+ a = √bx + c, where a, b, and
c are all positive integers and b > 1. Using this equation as a
model, create your own equation that has extraneous solutions.
(d) Using trial and error with numbers for a, b, and c, create an
equation of the form x + a = √bx + c, where a, b, and c are all
positive integers and b>1 such that 7 is a solution and there
is an extraneous solution. (Hint: Substitute 7 for x, and
choose a value for a. Then square both sides so you can
choose a, b, and c that will make the equation true.)
(e) Solve the equation you created in Part 2a.
Chapter 11 Solutions
EBK MATHEMATICS FOR THE TRADES
Ch. 11.1 - Simplify: 2(3 + 2y) 3yCh. 11.1 - Prob. 2LCCh. 11.1 - Solve each of the following systems of equations...Ch. 11.1 - Solve each of the following systems of equations...Ch. 11.1 - Solve each of the following systems of equations...Ch. 11.1 - Solve each of the following systems of equations...Ch. 11.1 - Prob. 5AECh. 11.1 - Solve each of the following systems of equations...Ch. 11.1 - Prob. 7AECh. 11.1 - Solve each of the following systems of equations...
Ch. 11.1 - Prob. 1BECh. 11.1 - Solve each of the following systems of equations....Ch. 11.1 - Prob. 3BECh. 11.1 - Prob. 4BECh. 11.1 - Prob. 5BECh. 11.1 - Solve each of the following systems of equations....Ch. 11.1 - Prob. 7BECh. 11.1 - Prob. 8BECh. 11.1 - Solve each of the following systems of equations....Ch. 11.1 - Prob. 10BECh. 11.1 - Prob. 11BECh. 11.1 - Prob. 12BECh. 11.1 - Prob. 1CECh. 11.1 - Prob. 2CECh. 11.1 - C. Word Problems Translate each problem statement...Ch. 11.1 - C. Word Problems Translate each problem statement...Ch. 11.1 - Prob. 5CECh. 11.1 - C. Word Problems Translate each problem statement...Ch. 11.1 - C. Word Problems Translate each problem statement...Ch. 11.1 - C. Word Problems Translate each problem statement...Ch. 11.1 - Prob. 9CECh. 11.1 - C. Word Problems Translate each problem statement...Ch. 11.1 - C. Word Problems Translate each problem statement...Ch. 11.1 - C. Word Problems Translate each problem statement...Ch. 11.1 - C. Word Problems Translate each problem statement...Ch. 11.1 - Prob. 14CECh. 11.1 - C. Word Problems Translate each problem statement...Ch. 11.2 - True or false: 52 = ( 5)2Ch. 11.2 - Prob. 2LCCh. 11.2 - Which of the following are quadratic equations? 5x...Ch. 11.2 - Which of the following are quadratic equations? 2x...Ch. 11.2 - Which of the following are quadratic equations?...Ch. 11.2 - Prob. 4AECh. 11.2 - Prob. 5AECh. 11.2 - Prob. 6AECh. 11.2 - Prob. 7AECh. 11.2 - Prob. 8AECh. 11.2 - Prob. 9AECh. 11.2 - Prob. 10AECh. 11.2 - Prob. 1BECh. 11.2 - Solve each of these quadratic equations. (Round to...Ch. 11.2 - Solve each of these quadratic equations. (Round to...Ch. 11.2 - Solve each of these quadratic equations. (Round to...Ch. 11.2 - Prob. 5BECh. 11.2 - Prob. 6BECh. 11.2 - Prob. 7BECh. 11.2 - B. Solve each of these quadratic equations. (Round...Ch. 11.2 - Prob. 9BECh. 11.2 - Solve each of these quadratic equations. (Round to...Ch. 11.2 - Solve each of these quadratic equations. (Round to...Ch. 11.2 - B. Solve each of these quadratic equations. (Round...Ch. 11.2 - B. Solve each of these quadratic equations. (Round...Ch. 11.2 - B. Solve each of these quadratic equations. (Round...Ch. 11.2 - Prob. 15BECh. 11.2 - B. Solve each of these quadratic equations. (Round...Ch. 11.2 - Prob. 17BECh. 11.2 - Prob. 18BECh. 11.2 - Prob. 19BECh. 11.2 - B. Solve each of these quadratic equations. (Round...Ch. 11.2 - C. Practical Applications. (Round to the nearest...Ch. 11.2 - C. Practical Applications. (Round to the nearest...Ch. 11.2 - Prob. 3CECh. 11.2 - C. Practical Applications. (Round to the nearest...Ch. 11.2 - Prob. 5CECh. 11.2 - Prob. 6CECh. 11.2 - C. Practical Applications. (Round to the nearest...Ch. 11.2 - C. Practical Applications. (Round to the nearest...Ch. 11.2 - C. Practical Applications. (Round to the nearest...Ch. 11.2 - C. Practical Applications. (Round to the nearest...Ch. 11.2 - Prob. 11CECh. 11.2 - Prob. 12CECh. 11.2 - Prob. 13CECh. 11.2 - Prob. 14CECh. 11.2 - Prob. 15CECh. 11.2 - Prob. 16CECh. 11.2 - C. Practical Applications. (Round to the nearest...Ch. 11.2 - C. Practical Applications. (Round to the nearest...Ch. 11.2 - C. Practical Applications. (Round to the nearest...Ch. 11 - Solve a system of two linear equations two...Ch. 11 - Prob. 2PCh. 11 - Solve quadratic equations. (a) x2 = 16 (b) x2 7x...Ch. 11 - Prob. 4PCh. 11 - Prob. 1APSCh. 11 - A. Solve each of the following systems of...Ch. 11 - A. Solve each of the following systems of...Ch. 11 - A. Solve each of the following systems of...Ch. 11 - A. Solve each of the following systems of...Ch. 11 - A. Solve each of the following systems of...Ch. 11 - A. Solve each of the following systems of...Ch. 11 - A. Solve each of the following systems of...Ch. 11 - A. Solve each of the following systems of...Ch. 11 - B. Solve each of the following quadratic...Ch. 11 - B. Solve each of the following quadratic...Ch. 11 - B. Solve each of the following quadratic...Ch. 11 - B. Solve each of the following quadratic...Ch. 11 - B. Solve each of the following quadratic...Ch. 11 - B. Solve each of the following quadratic...Ch. 11 - B. Solve each of the following quadratic...Ch. 11 - B. Solve each of the following quadratic...Ch. 11 - B. Solve each of the following quadratic...Ch. 11 - B. Solve each of the following quadratic...Ch. 11 - Prob. 1CPSCh. 11 - C. Practical Applications The area of a square is...Ch. 11 - Prob. 3CPSCh. 11 - Practical Applications For each of the following,...Ch. 11 - Practical Applications For each of the following,...Ch. 11 - C. Practical Applications. For each of the...Ch. 11 - C. Practical Applications. For each of the...Ch. 11 - C. Practical Applications. For each of the...Ch. 11 - C. Practical Applications. For each of the...Ch. 11 - Practical Applications For each of the following,...Ch. 11 - C. Practical Applications. For each of the...Ch. 11 - Prob. 12CPSCh. 11 - C. Practical Applications. For each of the...Ch. 11 - For each of the following, set up either a system...Ch. 11 - C. Practical Applications. For each of the...Ch. 11 - C. Practical Applications. For each of the...Ch. 11 - C. Practical Applications. For each of the...Ch. 11 - C. Practical Applications. For each of the...Ch. 11 - Prob. 19CPSCh. 11 - Prob. 20CPSCh. 11 - C. Practical Applications. For each of the...Ch. 11 - C. Practical Applications. For each of the...
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