Prealgebra (7th Edition)

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

Chapter 6 - Review: 75

Answer

87.6

Work Step by Step

$66^2+56^2=x^2$ $4356+3136=x^2$ $\sqrt {7672}=x$ $\sqrt {7672}\approx90$ Divide and average to refine the approximation. $7672\div90=85.244$ $(90+85.244)\div2=87.622$ Repeat to further refine. $7672\div87.622=87.558$ $(87.622+87.558)\div2=87.590$
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