Answer
4.123
Work Step by Step
$x^2 + 8^2 = 9^2$
$x^2 + 64 = 81$
$x^2 = 17$
$x = 4.123$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 6 - Section 6.4 - Square Roots and the Pythagorean Theorem - Exercise Set - Page 445: 48
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