College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter P, Prerequisites - Chapter P Test: 2

Answer

(a) rational, integer, natural number (b) irrational (c) rational, integer (d) rational, integer

Work Step by Step

(a) $5=5/1$, so it is rational. It is also an integer and a natural number. (b) $\sqrt{5}$ is irrational, since it does not reduce to a whole number or a ratio of whole numbers. (c) - $\displaystyle \frac{9}{3}=-3$ is rational. It is also an integer. (d) $-1000000$ is rational. It is also an integer.
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