Evaluate the expression.
-${ } _ { 8 } \mathrm { P } _ { 4 }$
A) 70
B) 1680
C) 4
D) 2

Name: Evaluate the expression. -${ } _ { 8 } \mathrm { P } _ { 4 }$ A) 70 B) 1680 C) 4 D) 2
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Question

Quizplus · Accepted Answer

The permutation formula is given as:
${ }_nP_r = \frac{n!}{(n-r)!}$
Substituting the values given in the expression, we get:
${ }_8P_4 = \frac{8!}{(8-4)!} = \frac{8!}{4!} = 8*7*6*5 = 1680$
Therefore, the answer is B) 1680.

Evaluate the Expression 8P4{ } _ { 8 } \mathrm { P } _ { 4 }8​P4​

Evaluate the Expression ${ } _ { 8 } \mathrm { P } _ { 4 }$