(1 point) This problem is similar to one in your textbook.
Suppose that a company needs new equipment, and that the machinery
in question earns the company revenue at a continuous rate of
58000t+42000 dollars per year during the first six months of
operation, and at the continuous rate of $71000 per year after the
first six months. The cost of the machine is $175000. The interest
rate is 6.75% per year, compounded continuously.
a) Find the present value of the revenue earned by the machine
during the first year of operation. Round your answer to the
nearest cent.
Value: $
b) Determine how long it will take for the machine to pay for
itself; that is, how long until the present value of the revenue is
equal to the cost of the machine. Round your answer to the nearest
hundredth.
Years:
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