Question

Please answer I’ll rate brainlyest

Answer 1

Answer:

1287

Step-by-step explanation:

The answer is 1287 because we use the combintions formula.

13!/((13-5)!(5!)) = 1287

Answer 2

Answer:

The correct answer is  first option  13C₅ = 1287

Step-by-step explanation:

Formula:-

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

To find the value of 8=13C₅

By the formula we can write,

13C5 = 13!/5!(13 - 5)!

 = 13!/5!8!  

 = (13 * 12 * 11 * 10 * 9 *8!)5!8!

 = 13 * 12 * 11 * 10 * 9 )/(1 * 2 * 3 * 4 * 5)  

 = 1287

Therefore the correct answer is  first option  13C₅ = 1287