6!/(6-2)! = 6*5 = 30 yes
8!/ [ 5! (3!) ] = 8*7*6/(3*2) = 56 sure enough
Simplify 6P2
A.30****
B.15
C.12
D.720
Simplify 8c5
A.6,720
B.336
C.56****
D.10
6 answers
Thank you
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!
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!
The answer is C, just took the test
Kat is wrong
a is t he answer
3 answers