Evaluate 5C2 (nCR).

A.) 10

B.) 20

C.) 60

Question

Mathematics

Samara Brooks

14 July, 00:18

Evaluate 5C2 (nCR).

A.) 10

B.) 20

C.) 60

+2

Answers (1)

Know the Answer?

Sassafras · Answer 1

We may directly use our calculator to solve for the combination, 5C2 = 10. Another option is to use the equation for the combination that is,

nCr = n! / ((n - r) ! r!))

Substituting the known values,

5C2 = 5! / ((5 - 2) !2!)) = 10

Thus, the answer is letter A.

Evaluate 5C2 (nCR).A.) 10B.) 20C.) 60

Evaluate 5C2 (nCR).

A.) 10

B.) 20

C.) 60