02-05-2014
Mathematics

contestada

How many combinations of 3 students can a teacher choose from 32 students? A. 96 B. 4960 C. 29,760 D. 32,768

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xlmichael xlmichael

02-05-2014

[tex]\frac{32*31*30}{3*2*1}[/tex]

The answer is:[tex]\frac{29760}{6}[/tex] or [tex]4960[/tex]

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02-05-2014

[tex]{32\choose3}=\frac{32!}{3!*(32-3)!}=\frac{30*31*32}{6}=4960[/tex]

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