英文的导数数学题,求步骤,解题过程
(1pt)Thetotalprofit(indollars)fromthesaleofcharcoalgrillsis
P(x)=30x-0.3x^2-215
(A)Findtheaverageprofitpergrillif40grillsareproduced.
Ave.profit=
Findthemarginalaverageprofitataproductionlevelof40grills.
(B)Marginalaverageprofit=
Usetheresultsfromparts(A)and(B)toestimatetheaverageprofitpergrillif41grillsareproduced.
(C)Estimatedaverageprofit=