?Evaluate the expression.? $C ( 5,2 )$ ?
A)?60
B)?120
C)?2
D)?20
E)?10

Name: ?Evaluate the expression.? $C ( 5,2 )$ ? A)?60 B)?120 C)?2 D)?20 E)?10
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Quizplus · Accepted Answer

$C(5,2)$ represents the number of combinations of 5 items taken 2 at a time. The formula for combinations is $C(n, k) = \frac{n!}{k!(n-k)!}$. Therefore, $C(5,2) = \frac{5!}{2!(5-2)!} = \frac{5 \times 4}{2 \times 1} = 10$.

?Evaluate the Expression C(5,2)C ( 5,2 )C(5,2) ? A)?60 B)?120 C)?2 D)?20 E)?10

?Evaluate the Expression $C ( 5,2 )$ ?
A)?60
B)?120
C)?2
D)?20
E)?10