Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - Chapter Review: 36

Answer

10

Work Step by Step

$\sqrt 100$ equals 10. Because $\sqrt 100$ is really close to $\sqrt 99$, 10 is a good approximation for $\sqrt 99$.
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