Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 6 - Review: 43

Answer

13

Work Step by Step

$12^2+5^2=x^2$ $144+25=x^2$ $169=x^{2}$ $\sqrt {169}=x$ $13=x$, because $13\times13=169$
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