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devlian [24]
3 years ago
14

Your english teacher has given you a list of 10 possible topics for essays. you need to pick four topics from the list to write

about over the school year. how many different groups of four essay topics can you choose?
Mathematics
1 answer:
postnew [5]3 years ago
6 0
Assuming order doesn't matter, we can use the probability formula nCr. Using a calculator, you get that there are 210 possible combinations. However, if order did matter, then you would use nPr, in which case would the answer be 5040.

:)

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