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OpenStudy (anonymous):
HELP PLEASE!!!!!! Find the number of combinations of the letters a, b, c, and d taken 3 at a time.
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OpenStudy (anonymous):
A) 16 B) 4 C) 8 D) 24
OpenStudy (cwrw238):
thats 4C3 which = 4C1 how many 1's can you take out of 4?
OpenStudy (anonymous):
4
OpenStudy (anonymous):
yeah 4c3=4c1
OpenStudy (anonymous):
so whats the answer?
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OpenStudy (cwrw238):
4
OpenStudy (cwrw238):
thers only 4 1's in 4
OpenStudy (anonymous):
thanks
OpenStudy (cwrw238):
yw
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