C=370+2.55 sqrt x
c'=2.55/2 * 1/sqrt x
c'=1.275/sqrt400=1.275/20= you are correct
The cost C (in dollars) for producing x units of an item is given by C=370+2.55sqrtX. find the marginal cost when the production level is X=400 units.
My answer came out to 51/800, or .06375.
I'm not sure if I did it correctly.
2 answers
The cost C (in dollars) of producing x units of a product is given by C=3.6√x+500
Find the marginal cost when x=9.
Find the additional cost when the production increases from 9 to 10 units.
Find the marginal cost when x=9.
Find the additional cost when the production increases from 9 to 10 units.