Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 5 - Section 5.1 - Ratios, Rates, and Proportions - Exercises: 8a


$x = 12$ or $-12$

Work Step by Step

$\frac{9}{x} = \frac{x}{16}$ $144 = x^{2}$ $x = 12$ or $-12$
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