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Nuetrik [128]
3 years ago
9

An English class consists of twenty students, and four are to be chosen to give speeches in a school competition.

Mathematics
1 answer:
NemiM [27]3 years ago
4 0
A)If the order of the speakers is important, we have 20x19x18x17, or 116,280 different options.
b) If order is not important, then we have 20 choose 4, or 4845 different slates. ☺☺☺☺
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