Asked by matt

Simplify 6P2

A.30****

B.15

C.12

D.720



Simplify 8c5

A.6,720

B.336

C.56****

D.10
Answered by Damon
6!/(6-2)! = 6*5 = 30 yes

8!/ [ 5! (3!) ] = 8*7*6/(3*2) = 56 sure enough
Answered by matt
Thank you
Answered by The Philly Inquirer
matt, I don't understand how you got that. The formula for permutation is n!/(n-r)! so that would be 6!/(6-2)! and then 6 - 2 = 4, so you would do
6 x 5 x 4 = 120, but after that I'm not sure. You certainly don't do
6 x 5, there is more to it than that. Please help!
Answered by Kat
The answer is C, just took the test
Answered by MarineCat6
Kat is wrong
Answered by the truth
a is t he answer
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