Answer
-6.856
Work Step by Step
We can find a decimal approximation for $-\sqrt 47$ by plugging the given radical into a calculator.
$-\sqrt 47\approx-6.856$
This make sense, given that $-\sqrt 49=-(7)=-7$.
Intermediate Algebra (12th Edition)
by Lial, Margaret L.; Hornsby, John; McGinnis, Terry
Published by
Pearson
ISBN 10:
0321969359
ISBN 13:
978-0-32196-935-4
Chapter 7 - Review Exercises - Page 497: 11
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