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3 years ago

Please answer I’ll rate brainlyest

Mathematics

2 answers:

bija089 [108]3 years ago

3 0

Answer:

1287

Step-by-step explanation:

The answer is 1287 because we use the combintions formula.

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

mestny [16]3 years ago

3 0

Answer:

The correct answer is first option 13C₅ = 1287

Step-by-step explanation:

Formula:-

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

<u>To find the value of 8=13C₅</u>

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

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