Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - 1-3 Real Numbers and the Number Line - Practice and Problem-Solving Exercises - Page 20: 11

Answer

4

Work Step by Step

The square root symbol means that we are trying to find what squared equals the number inside of the square root. 4 times 4 is 16, so $\sqrt 16$ equals 4.
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