Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Entry Level Assessment - Multiple Choice - Page XXXV: 15

Answer

b) 9 and 10

Work Step by Step

$9^2=81$ and $10^2=100$ Since 85 is between 81 and 100, $\sqrt {85}$ is between 9 and 10.
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