Evaluate 5C3

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1. Is it 5C^3? Is 3 an exponent?

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2. its like 5^C3....i posted it on wednesday and Reiny responded but never answered me back....

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posted by Jen
3. its the counting principle....

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posted by Jen
4. Do you mean combinations of five taken 3 at a time perhaps?
If so
C(n,r) = n!/[r!(n-r)! ]
= 5!/[3!2!]
=5*4/2!
=5*2
=10

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posted by Damon
5. yes, thank you Damon...i couldn't figure how to explain it

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posted by Jen

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