College Algebra (10th Edition)

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

Chapter 10 - Section 10.2 - Permutations and Combinations - 10.2 Assess Your Understanding - Page 694: 3

Answer

See below.

Work Step by Step

If we choose $r$ objects out of $n$ regarding order, then it is a permutation.
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