Respuesta :

Yna9141
To answer this item, we are to use the concept of combination. The equation is as follows,

    nCr = (n!)/((r!)(n - r))!

Substituting the known values in the equation,
 
   3C2 = 3!/(2!)(3-2)! = 3

Hence, the answer to this item is 3. 

ANSWER: 3
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