Geometry help please :)

Algebra
Tutor: None Selected Time limit: 1 Day

Apr 26th, 2015

Again, C_from18_by4 = (18*17*16*15)/(1*2*3*4) = 3*17*4*15 = 51*60 = 3060.

Apr 26th, 2015

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Apr 26th, 2015
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Apr 26th, 2015
Dec 9th, 2016
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