Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 6 - Section 6.2 - Adding and Subtracting Rational Expressions - Exercise Set: 93

Answer

The unknown length is $5$ meters.

Work Step by Step

Let $c$ = length of the hypotenuse Use the Pythagorean theorem's formula $c^2=a^2+b^2$ where c= length of the hypotenuse, and a and b are the lengths of the legs of the righ triangle to have: $\\c^2=3^2+4^2 \\c^2=9+16 \\c^2=25 \\c = \sqrt{25} \\c=5$
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