A committee of four congressmen will be selected from a group of 7 democrats and 3 republicans. Find the number of different committees containing. A).Exactly one democrat B).Exactly three democrats
A is seven and B is 7 combination 3 times 3 for each republican
7C3 times 3C1 for the second one.
which is what math major said
which is the same thing as what i put but i was lazy :P
when that other kid put up something else i was doubting my answer lolz
lol. turns out he doubted his answer more than you :D
i like doing math help at 2 am is that odd
heh, you on the east coast?
trust me i'm up till 5 am helping these kids sometimes :)
yeah im on the east coast and im going to major in math in the fall so i wanna stay sharp
lol, not sure this is the best way to stay sharp :)
what would you suggest
im just saying, most questions here are like x+4 = 0 find x and that sort of thing. not sure those will help you much is all im saying. you doing undergrad or grad?
undergrad im only 17 atm