Answer
$± 0.7$
Work Step by Step
When you take the square root of $0.49$, you have to think what number squared will equal $0.49$. Two numbers will give you that result: $+0.7$ and $-0.7$:
$\pm\sqrt {0.49}$ = $± 0.7$
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 6 - Radical Functions and Rational Exponents - Mid-Chapter Quiz - Page 389: 2
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