[Solution Library] Suppose that when its x years old, an industrial machine generates revenue at the rate of R(x)=5920-12x^2 per year, and results in costs
Question: Suppose that when its \(x\) years old, an industrial machine generates revenue at the rate of \(R(x)=5920-12{{x}^{2}}\) per year, and results in costs that accumulate at the rate of \(C(x)=4000+18{{x}^{2}}\)
- For how many years is the use of the machine profitable?
- Find the net earnings generated by the machine during the time it’s profitable.
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