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OpenStudy (anonymous):
From the ten books that you’ve recently bought but not read, you plan to take four with you on vacation. How many different sets of four books can you take?
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OpenStudy (anonymous):
: 10C4 = (10*9*8*7)/(1*2*3*4) = 210
OpenStudy (anonymous):
is my answer
OpenStudy (kropot72):
Good work. Your answer is correct.
OpenStudy (anonymous):
really oh wow
OpenStudy (kropot72):
You're welcome :)
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OpenStudy (anonymous):
ty
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