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OpenStudy (andijo76):
Evaluate 12C8 (Points : 2) 24 1680 11880 495
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jimthompson5910 (jim_thompson5910):
n C r = (n!)/(r!(n-r)!) 12 C 8 = (12!)/(8!*(12-8)!) 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
OpenStudy (andijo76):
cool thanks
jimthompson5910 (jim_thompson5910):
yw
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