Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.1 - Algebraic Expressions, Mathematical Models, and Real Numbers - Exercise Set: 36

Answer

a. $\sqrt {49}$ b. $0,\sqrt {49}$ c. $-7,0,\sqrt {49}$ d. $-7,-0.\overline6,0,\sqrt {49}$ e. $\sqrt {50}$ f.$-7,-0.\overline6,0,\sqrt {49},\sqrt {50}$

Work Step by Step

Natural numbers are positive integers Whole numbers and Integers are numbers without fractions or decimals Rational numbers are ones that can be written as fractions in which the numerator and denominator are both integers Irrational numbers are ones that cannot be expressed as a ratio of two integers Real numbers are values that represent any quantity along a number line. $\sqrt 49=7$
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