College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter R - Section R.1 - Real Numbers - R.1 Assess Your Understanding - Page 15: 23

Answer

-6 is a real number, rational number, and integer 1/2 is a rational number, real number -1.3333 (the 3's repeat) is a rational number, real number $\pi$ is a irrational number and real number 2 is a real number, natural number, rational number, and integer 5 is a real number, natural number, rational number, integer

Work Step by Step

-6 is a real number since anything rational and irrational can be a real number; it is a rational number because it is a whole number. 1/2 is rational because rational can be fractions, and a real number since anything rational and irrational can be a real number -1.3333 (the 3's repeat) this number is rational because it can be turned into a fraction and decimals are considered rational. It is a real number for the same reason as mentioned before pi is irrational because it cannot be turned into a fraction that finds its exact value and it is a real number (same reasoning like before) 2 and 5 are real numbers (same reasoning like before), natural numbers since they are whole numbers, and integers because integers can be whole numbers
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