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jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
n C r = (n!)/(r!(nr)!) 12 C 8 = (12!)/(8!*(128)!) 12 C 8 = (12!)/(8!*4!) 12 C 8 = (12*11*10*9*8!)/(8!*4!) 12 C 8 = (12*11*10*9)/(4!) 12 C 8 = (12*11*10*9)/(4*3*2*1) 12 C 8 = (11880)/(24) 12 C 8 = 495 So the answer is choice D
 2 years ago

andijo76 Group TitleBest ResponseYou've already chosen the best response.0
cool thanks
 2 years ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.1
yw
 2 years ago
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