zacharysharpe2805
05.06.2020 •
Mathematics
Dash puts $4125 into an account using compounded continuously. If he keeps the
money in the account for 5 years and now has a total of $4193.89. What is the
interest rate?
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Ответ:
0.33%
Step-by-step explanation:
The account value when principal P is compounded continuously at annual rate r for t years is given by ...
A = Pe^(rt)
For the given values, we can solve for r:
4193.89 = 4125e^(r·5)
We can divide by 4125, take the natural log, then divide by the coefficient of r to find the value of r:
ln(4193.89/4125)/5 = r ≈ 0.33%
The interest rate is about 0.33%.
Ответ:
D for 500
C for 100
C for 100
XC for 90
VI for 6