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Arturiano [62]
4 years ago
12

HELP!!!

Mathematics
1 answer:
san4es73 [151]4 years ago
6 0
Choosing "r" things from a set of "n" can be done in this many ways:
combinations = n! / [r! * (n-r)!]
combinations = 7! / [3! * 4!]

combinations = 7 * 6 * 5 / 6
combinations = 35

Source:http://www.1728.org/combinat.htm

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