## Algebra 1: Common Core (15th Edition)

Published by Prentice Hall

# Chapter 1 - Foundations for Algebra - 1-5 Adding and Subtracting Real Numbers - Practice and Problem-Solving Exercises - Page 36: 80

#### Answer

Rational numbers, integers, whole numbers, natural numbers.

#### Work Step by Step

The number $\sqrt 16$ is equal to 4 because $4^{2}$=16. A natural number is a number in the set {1,2,3,4,…….}. Therefore, 4 and $\sqrt 16$ are in the set of natural numbers. The set of natural numbers is included in the sets of whole numbers, integers, and rational numbers as well. Therefore, $\sqrt 16$ is included in all of these subsets of real numbers.

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