To find the marginal revenue of producing 3 units of the commodity, we start by understanding the given price function and the relationship between price and revenue.
The price per unit, P, is given by:
P=92-2x^2
Where x represents the quantity demanded. The revenue, R(x), is given by the formula:
R(x)=P*x=(92-2x^2)x=92x-2x^3
The marginal revenue is the derivative of the revenue function, R(x), with respect to x. So, we need to compute:
R'(x)=d/dx(92x-2x^3)
By applying the power rule, the derivative is:
R'(x)=92-6x^2
Now, evaluate the marginal revenue when x=3:
R'(3)=92-6(3)^2=92-54=38
Thus, the marginal revenue of producing 3 units is 38. The correct answer is therefore 38.