Answer
$30$
Work Step by Step
$\sqrt 900$
The square root of 900
$\sqrt 9\times\sqrt 100$
The square root of 9 times the square root of 100
$3\times10$
Multiply
$30$
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Appendix A - A.4 - Quadratic Equations - Exercises - Page 560: 5c
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