Question 1124145


The cost will be minimized for {{{C}}}'{{{(x) = 0}}}

or {{{ dC/dx = 0}}}

if {{{C(x)=2x^2 -320x + 12020}}}

{{{dC/dx = 4x - 320 = 0}}}
{{{4x = 320 }}}

This gives {{{x = 80}}}