Answer
$P(4,4)=24$
Work Step by Step
Use the permutation formula to obtain:
$P(n,r)=\frac{n!}{(n-r)!}$
$0!=1$
$P(4,4)=\frac{4!}{(4-4)!}=\frac{4!}{0!}=\frac{4\cdot3\cdot2\cdot1}{1}=24$
Or
$P(4,4)=4\cdot3\cdot2\cdot1=24$
$P(4,4)=24$
College Algebra (10th Edition)
by Sullivan, Michael
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 695: 9
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