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OpenStudy (anonymous):
Jeanna makes flower arragments. she had 17 different cut flowers and plans to use 4 of them. how many different selections of 4 flowers are possible?
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OpenStudy (anonymous):
How many ways can the flowers be chosen?
OpenStudy (anonymous):
Remember, when you are Choosing, you use nCr
OpenStudy (anonymous):
When order doesn't matter, so out of 17, choose 4 = 17C4
OpenStudy (anonymous):
by using the formula we used before?
OpenStudy (anonymous):
Yes, 17C4 = 17!/(4!(17-4)!) = (17*16*15*14)/(4*3*2*1)
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OpenStudy (anonymous):
85680?
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