39. Investment A sum of $5000 is invested at an interest rate of 9% per year,...
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39. Investment A sum of $5000 is invested at an interest rate of 9% per year, compounded continuously. (a) Find the value A(t) of the investment after 7 years. (b) Draw a graph of A(t). (c) Use the graph of A(t) to determine when this investment will amount to $25,000. 39. Investment A sum of $5000 is invested at an interest rate of 9% per year, compounded continuously. (a) Find the value A(t) of the investment after 7 years. (b) Draw a graph of A(t). (c) Use the graph of A(t) to determine when this investment will amount to $25,000.
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