Respuesta :

sqdancefan

Answer:

  20

Step-by-step explanation:

Put the numbers into the formula and do the arithmetic.

  [tex]n\text{C}r=\dfrac{n!}{(n-r)!r!}\\\\6\text{C}3=\dfrac{6!}{(6-3)!3!}=\dfrac{6\cdot 5\cdot 4}{3\cdot 2\cdot 1}=5\cdot 4\\\\\boxed{6\text{C}3=20}[/tex]

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