Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10:
ISBN 13:

Chapter 5 - Section 5.1 - Ratios, Rates, and Proportions - Exercises - Page 216: 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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