Find out how long it takes a $2800 investment to double if it is invested at 9% compounded semiannually. Round to the nearest tenth of a year. Use the formula A = P 1 +(r/n)nt.
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63) Find out how long it takes a $2800 investment to double if it is invested at 9% compounded semiannually.
Round to the nearest tenth of a year. Use the formula A = P 1 +(r/n)nt.
64) The first recorded population of a particular country was 26 million, and the population was recorded as 34 million 10 years later. The exponential growth function A =26ekt describes the population of this country t years
since the first recording. Use the fact that 10 years later the population increased by 8 million to find k to three decimal places.
65) The value of a particular investment follows a pattern of exponential growth. You invested money in a money market account. The value of your investment t years after your initial investment is given by the exponential
growth model A = 4300e0.049t. When will the account be worth $6683?
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