...but let's see. #ways to get from (0,0) to (k,k) to (n,n) = C(2k,k) * C(2n-2k, n-k) Yes you're right, good observation! But I'...
2 Answers · Science & Mathematics · 13/12/2013
Let l=length of the rectangle w=width of the rectangle The perimeter of the rectangle consists of two lengths and two widths, so one equation is a given: 2l+2w=38 Then, one is given that the width is 10cm less than the length, so there'...
9 Answers · Science & Mathematics · 18/08/2009
It's A. V, the volume, is proportional to n, the amount of matter.
2 Answers · Science & Mathematics · 16/12/2011