Evaluate the expression.
-${ } _ { 13 } \mathrm { C } _ { 7 }$
A) $1,235,520$
B) $\frac { 13 } { 42 }$
C) $8,648,640$
D) 1716

Question

Quizplus · Accepted Answer

${ } _ { 13 } \mathrm { C } _ { 7 }$ calculates the number of combinations of 13 items taken 7 at a time. It is computed as $\frac{13!}{7!(13-7)!} = \frac{13!}{7!6!} = \frac{13 \times 12 \times 11 \times 10 \times 9 \times 8}{6 \times 5 \times 4 \times 3 \times 2 \times 1} = 1716.$

Evaluate the Expression 13C7{ } _ { 13 } \mathrm { C } _ { 7 }13​C7​

Evaluate the Expression ${ } _ { 13 } \mathrm { C } _ { 7 }$