Posted by starlight on Wednesday, April 10, 2013 at 12:12am.
Using data from past years, the economists for smith brothers inc determined that the revenue f the company can be modeled by the function R(x)=0.0125x^2+412x. In addition, the function C(x)=12225+0.00135x^2 models the total cost of doing business, where x us v the number of customers patronizing the business in both functions.
A) how many customers just there be for ssmithmith bros inc to realize am annual profit of $60000?
I have no idea how to do modeling Function

precalculus  Steve, Wednesday, April 10, 2013 at 11:30am
what do you mean by "do" the function? They gave it to you.
Surely you know that profit = revenuecost, and they gave you both of those, so
P(x) = R(x)C(x)
= 0.0125x^2+412x  (12225+0.00135x^2)
= 0.01115x^2 + 412x  12225
So when does P(x)=60000? when x=174.48
so, they need 175 customers to make at least 60,000 profit.
See? Not so complicated, once you get past all the words.
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