Precalculus (6th Edition) Blitzer

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

Chapter 10 - Section 10.6 - Counting Principles, Permutations, and Combinations - Exercise Set - Page 1105: 90

Answer

False.

Work Step by Step

False. The winner and the first runner-up are different places and the order matters. Thus, we have a permutation problem, so we use $_{20}P_2$.
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