A bank features a savings account that has an annual percentage rate of r = 3.5% with interest compounded quarterly. Devin deposits $7,500 into the account. kt r = a(1+ k The account balance can be modeled by the exponential formula A(t) where A is account value after t years , a is the principal (starting amount), r is the annual percentage rate (as a decimal), k is the number of times each year that the interest is compounded. (A) What numbers should be used for a, r, and k? a = r = k (B) How much money will Devin have in the account in 9 years? Answer = $ Round answer to the nearest penny.

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter4: Exponential And Logarithmic Functions
Section4.CT: Chapter Test
Problem 11CT
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A bank features a savings account that has an annual percentage rate of r = 3.5% with interest
compounded quarterly. Devin deposits $7,500 into the account.
kt
r
«(1+ ;)".
The account balance can be modeled by the exponential formula A(t)
where A is
k
account value after t years , a is the principal (starting amount), r is the annual percentage rate (as a
decimal), k is the number of times each year that the interest is compounded.
(A) What numbers should be used for a, r, and k?
a =
r =
k =
(B) How much money will Devin have in the account in 9 years?
Answer = $
Round answer to the nearest penny.
Transcribed Image Text:A bank features a savings account that has an annual percentage rate of r = 3.5% with interest compounded quarterly. Devin deposits $7,500 into the account. kt r «(1+ ;)". The account balance can be modeled by the exponential formula A(t) where A is k account value after t years , a is the principal (starting amount), r is the annual percentage rate (as a decimal), k is the number of times each year that the interest is compounded. (A) What numbers should be used for a, r, and k? a = r = k = (B) How much money will Devin have in the account in 9 years? Answer = $ Round answer to the nearest penny.
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