Answer
20
Work Step by Step
We know the following equation for permutations:
$$nP_r=\frac{n!}{(n-r)!}$$
Thus, we find:
$$\frac{5!}{\left(5-2\right)!}=20$$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 10 Counting Methods and Probability - Chapter Test - Page 737: 1
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