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OpenStudy (linn99123):
What is the value of 10C3? A. 30 B. 120 C. 720 D. 1000 i chose C @AnswerMyQuestions
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OpenStudy (anonymous):
???
OpenStudy (cwrw238):
10 * 9* 8 -------- 3 * 2* 1
OpenStudy (anonymous):
120
OpenStudy (linn99123):
@cwrw238 i got it right then?
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OpenStudy (cwrw238):
No its B 720 / 6 = 120
OpenStudy (linn99123):
I suck at math T^T
OpenStudy (cwrw238):
these are combinations not permutations so the order does not matter the formula is nCr = n! ------- (n-r)! r! but the quick way to do it is as i did
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