Question

The cost of producting x items is given by c(x)=x^2 +3x+7.find the totql cost when the number of item products is 20​

Answer 1

Answer:

you don't no

Step-by-step explanation:

you don't no

Answer 2

Answer:

Since it is Given that marginal Cost is the Instantaneous rate of change of total cost means ⇒ dc/dx

dc/dx =3×0.05×x 2 −2×0.02×x+30=0.15x2+0.04x+30

Given in the Question, Marginal Costs of 3 units is to be calculated

so, x=3

⇒MarginalCost=1.35−0.12+30=31.23