Answer
x=16
Work Step by Step
(.5x)$^2$=17$^2$-15$^2$
.5x=8
x=16
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 5 - Review Exercises - Page 274: 32d
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