Mathematics, 18.06.2021 19:00 kaitp0726
Dave collects model trains. So far he has 23 distinct train cars. How many ways can he put 7 cars together? = Answer 23 PAnswer 7 =23!(23−7)! =23!16! = Answer 23 ⋅ Answer 22 ⋅21⋅20⋅19⋅18⋅ Answer 17 = Answer
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is the number of different combinations of x objects from a set of n elements, given by the following formula.
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Dave collects model trains. So far he has 23 distinct train cars. How many ways can he put 7 cars to...
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