An accessories company finds that the cost, in dollars, of producing x belts is given by Upper C (x )equals 720 plus 35 x minus 0.063 x squared. Find the rate at which average cost is changing when 180 belts have been produced.

The average cost of belt is decreasing at a rate 0.085 dollars per belt  when 180 belts have been produced.

Step-by-step explanation:

We are given the following in the question:

Cost function:

where x is the number of belts.

Average cost =

Rate of change of average function:

Change in average cost when 180 belts have been produced

Thus, the average cost of belt is decreasing at a rate 0.085 dollars per belt  when 180 belts have been produced.

yes

step-by-step explanation:

yes

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