Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 8 - Section 8.1 - The Square Root Property and Completing the Square - Exercise Set - Page 595: 87


The required length of the supporting wire is $c= 50\sqrt{2} ft$.

Work Step by Step

Using the Pythagorean theorem $c^2 = a^2 + b^2$, the length of the wire can be obtained by setting up an equation for the hypotenuse, $c$: $a = 50ft$ $b = 50ft$ $c^2 = a^2 + b^2$ $c^2 = 50^2 + 50^2$ $c^2 = 50^2 + 50^2$ $c^2 = 5000$ $c= \sqrt{5000}$ $c= \sqrt{(2500·2)}$ $c= 50\sqrt{2} ft$
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