## Algebra 1

Published by Prentice Hall

# Chapter 1 - Foundations for Algebra - 1-5 Adding and Subtracting Real Numbers - Mixed Review - 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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