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Mathematics
OpenStudy (anonymous):

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

OpenStudy (anonymous):

A is seven and B is 7 combination 3 times 3 for each republican

OpenStudy (anonymous):

7C3 times 3C1 for the second one.

OpenStudy (anonymous):

which is what math major said

OpenStudy (anonymous):

which is the same thing as what i put but i was lazy :P

OpenStudy (anonymous):

:)

OpenStudy (anonymous):

when that other kid put up something else i was doubting my answer lolz

OpenStudy (anonymous):

lol. turns out he doubted his answer more than you :D

OpenStudy (anonymous):

i like doing math help at 2 am is that odd

OpenStudy (anonymous):

heh, you on the east coast?

OpenStudy (anonymous):

trust me i'm up till 5 am helping these kids sometimes :)

OpenStudy (anonymous):

yeah im on the east coast and im going to major in math in the fall so i wanna stay sharp

OpenStudy (anonymous):

lol, not sure this is the best way to stay sharp :)

OpenStudy (anonymous):

what would you suggest

OpenStudy (anonymous):

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?

OpenStudy (anonymous):

undergrad im only 17 atm

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