Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 1 - Section 1.2 - Algebraic Expressions and Sets of Numbers - Exercise Set - Page 16: 52



Work Step by Step

$\pi$ is an irrational number because it cannot be written as a fraction. Even though it is often written as $\frac{22}{7}$. This is a rounding of $\pi$, just like 3.14 is a rounding of $\pi$.
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