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January 28, 2015

January 28, 2015

Posted by **srishti** on Thursday, February 3, 2011 at 3:48am.

- math -
**Damon**, Thursday, February 3, 2011 at 4:05am2 x^2 h = v

h = 140-3x

v =2 x^2 (140-3x)

v = 280 x^2 - 6 x^3

dv/dx = 0 = 560 x - 18 x^2

x(560 - 18x) = 0

18 x = 560

x = 31.1

2x = 62.2

h = 140 - 3(31.1) = 46.7

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