jwade1314 jwade1314

24-07-2021
Mathematics

contestada

Use the formula for nCr to evaluate the given expression.

27C2 = ___ (Type an integer or a simplified fraction.)

$Use the formula for nCr to evaluate the given expression 27C2 Type an integer or a simplified fraction class=$

Respuesta :

ferrybukantoro ferrybukantoro

25-07-2021

Answer:

351

Step-by-step explanation:

27C2 = 27! / 2! × (27-2)!

= 27×26×25! / 2×1 × 25!

= 27×26 /2

= 27×13

= 351

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