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If you have N things and want to find the number of combinations of R things at a time then the formula is
[(Factorial N)] / [(Factorial R) x (Factorial {N-R})]
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∙ 10y ago
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How do you do combinations in math?
nCr=n!/r!/(n-r)!
What is a composite figure in math?
It is a figure which is made up of two or more simpler shapes.
How do you beat mummy hunt 3 on funbrain math arcade?
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nCr=n!/r!/(n-r)!
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Vega
