emilybb195
emilybb195 emilybb195
  • 15-03-2017
  • Mathematics
contestada

someone please answer !!!!

someone please answer class=

Respuesta :

Acebrainer
Acebrainer Acebrainer
  • 15-03-2017
The answer is C

By the way, that expression means "n choose k". Hope I helped!
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linhnguyen
linhnguyen linhnguyen
  • 15-03-2017
The answer is c .I hope my answer right
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