Posted by Laura on Wednesday, September 15, 2010 at 10:33pm.
null set --- 1
one element --- C(14,1) = 14
two elements --- C(14,2) = 91
three elements --- C(14,3) = 364
four elements --- C(14,4) = 1001
add them up.
^no, I just tried it and it isn't right. any other suggestions?
Got it:
C(14,0)+C(14,1)+C(14,3)+C(14,4)=answer
I hate webwork.......
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