College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 1 - Equations and Inequalities - Exercise Set 1.5 - Page 163: 147


$5$ inches

Work Step by Step

Put the given information into formulas. Use them to solve for $s$. $S^2$ is the equivalent of $s+3$ here. Find the square root of both sides and then isolate $s$ to get its values. Only the positive value matters since we are dealing with a shape. $S=s+3$ $S^2=64$ $(s+3)^2=64$ $s+3=±8$ $s=-11,5$ $s=5$
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