Answer
2.645
Work Step by Step
$\sqrt 4\lt\sqrt 7\lt\sqrt 9$
$2\lt\sqrt 7\lt3$
The approximation is reasonable because $\sqrt 7$ (2.645), is greater than $\sqrt 4$ (2) but less than $\sqrt 9$ (3).
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 7 - Section 7.1 - Radicals and Radical Functions - Vocabulary, Readiness & Video Check - Page 416: 13
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