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katovenus [111]
3 years ago
13

1. How many ways are there to make an octagon with 19 different sticks when order DOESN’T matter?

Mathematics
1 answer:
Phantasy [73]3 years ago
8 0

Answer: 1. 75582 2. 3047466240

Step-by-step explanation: 1.  If order does not matter, this is a combination problem.  You are choosing 8 sticks from a set of 19. (Octagons have 8 sides.) The formula for combinations of n things chosen r at a time "n choose r" is

2. If order matters, there are more possibilities. This is a permutation problem.  The number of permutations of 19 things taken 8 at a time, "19 permute 8" is Y

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