he bank offers a rate of \( 11 \% \), compoundec continuously, on any deposit that will not be removed for a minimum of 20 years. If you invest \( \$ 10,000 \) with the bank, how much money can you expect to have in the account after 20 years?
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Bonus Knowledge
To calculate the future value of an investment with continuous compounding, you can use the formula: \[ A = Pe^{rt} \] where: - \( A \) is the amount of money accumulated after time \( t \), - \( P \) is the principal amount (the initial investment), - \( r \) is the annual interest rate (decimal), and - \( t \) is the time the money is invested for, in years. In this case: - \( P = 10,000 \), - \( r = 0.11 \) (11% expressed as a decimal), - \( t = 20 \). Plugging in the values: \[ A = 10000 \times e^{(0.11 \times 20)} = 10000 \times e^{2.2} \] Using \( e^{2.2} \approx 9.025 \): \[ A \approx 10000 \times 9.025 \approx 90250 \] So, after 20 years, you can expect to have approximately \( \$ 90,250 \) in your account. Happy saving! 🎉💰