Evaluate: ${ } _ { 8 } P _ { 5 }$
A) 56
B) 336
C) 6720
D) 40
E) undefined

Name: Evaluate: ${ } _ { 8 } P _ { 5 }$ A) 56 B) 336 C) 6720 D) 40 E) undefined
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Question

Quizplus · Accepted Answer

${ } _ { 8 } P _ { 5 }$ is calculated using the permutation formula $P(n, r) = \frac{n!}{(n-r)!}$. Here, $n = 8$ and $r = 5$, so ${ } _ { 8 } P _ { 5 } = \frac{8!}{(8-5)!} = \frac{8!}{3!} = \frac{8 \times 7 \times 6 \times 5!}{3!} = 8 \times 7 \times 6 = 336$.

Evaluate 8P5{ } _ { 8 } P _ { 5 }8​P5​

Evaluate ${ } _ { 8 } P _ { 5 }$