Answer:
60 players should be produced to minimize the marginal cost
Step-by-step explanation:
Following the problem instructions, the marginal cost function is:
[tex]P(x) = x^{2} -120x+8600[/tex]
Then, to find the x players at [tex]P(x)\alpha[/tex] would has its minimum value, we have to find the first derivative as follows:
[tex]\frac{dP(x)}{dx} =2x-120[/tex]
And the minimum value is determined when:
[tex]\frac{dP(x)}{dx} =0[/tex]
Then, we solve for x, and these would be the players produced to minimize the marginal cost:
[tex]0=2x-120\\x=\frac{120}{2} =60[/tex]
That means at least 60 thousand players must be produced in order to minimize the marginal cost.