Answer
$P(6,2) = 30$
Work Step by Step
Use he formmula $P=\dfrac{n!}{(n-r)!}$ to obtain:
$\require{cancel}
P(6,2)
\\=\dfrac{6!}{(6-2)!}
\\=\dfrac{6\times5\times4!}{4!}
\\=\dfrac{6\times5\times\cancel{4!}}{\cancel{4!}}
\\=6\times5
\\=30$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 12 - Counting and Probability - Section 12.2 Permutations and Combinations - 12.2 Assess Your Understanding - Page 875: 7
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