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OpenStudy (anonymous):
13C4?
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OpenStudy (anonymous):
what's the question? If you want to convert this hex number to decimal, the result is 5060.
OpenStudy (anonymous):
nCr = n!/(n-r)!r! = nPr/r!
OpenStudy (anonymous):
13!/(9!)4! => (13*12*11*10)/24 = 13*11*5
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