The students in Mrs. Mandel’s class need to choose two class
representatives from six nominated students. How many different
combinations of class representatives are possible?
6C2 = 6*5/2 = 15
Combination because choosing Joe and Sam is the same as choosing Sam and Joe.
Some might thing 6 x 5 = 30, but that is wrong because order doesn't matter as stated above.
6!/4!2!
that answers above are correct, Amen!!
my response would say...2-2-2 which then you use the mathematical term (!) and leads to the answer 15!!
hey Bub! your answer is wrong
no its not
yes it is !!! don't argue with a genius
you're not a genius, what is you gpa?
4.5
no its not
you're lying