P(4) =
100(4) - 3(16)ln(4)
= ..
I assume you have a calculator to get appr 333.46
The profit obtained when x barbecues are sold is
P(x) = 100 x − 3x^2 (lnx) dollars . Find the marginal profit when 4 are sold.
2 answers
the marginal profit is
dP/dx = 100 - 6x lnx - 3x
so, now plug in x=4
dP/dx = 100 - 6x lnx - 3x
so, now plug in x=4