Question

9. An ordinary annuity is an account in which you make a fixed deposit at the end of each compounding period. You want to use an annuity to help you save money for college. The formula $t = \frac{\ln(\frac{Sr+Pn}{Pn})}{n \ln(\frac{n+r}{n})}$ gives the time t (in years) required to have S dollars in the annuity if your periodic payments P (in dollars) are made n times a year and the annual interest rate is r (in decimal form). $t = \ln[(Sr + Pn) - (Pn) - (n + r)^n - n^n]$ is the expansion of the formula. a. True b. False

          9. An ordinary annuity is an account in which you make a fixed deposit at the end of each compounding period. You want to use an annuity to help you save money for college. The formula $t = \frac{\ln(\frac{Sr+Pn}{Pn})}{n \ln(\frac{n+r}{n})}$ gives the time t (in years) required to have S dollars in the annuity if your periodic payments P (in dollars) are made n times a year and the annual interest rate is r (in decimal form). $t = \ln[(Sr + Pn) - (Pn) - (n + r)^n - n^n]$ is the expansion of the formula.
a. True
b. False

9. An ordinary annuity is an account in which you make a fixed deposit at the end of each compounding period. You want to use an annuity to help you save money for college. The formula t = (ln((Sr+Pn)/(Pn)))/(n ln((n+r)/(n))) gives the time t (in years) required to have S dollars in the annuity if your periodic payments P (in dollars) are made n times a year and the annual interest rate is r (in decimal form). t = ln[(Sr + Pn) - (Pn) - (n + r)^n - n^n] is the expansion of the formula.
a. True
b. False

Added by George J.

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