When an initial amount of money, A, in dollars, is invested into an account that earns interest continuously, the Future Value of the account after t years is given by the formula: F(t) = Aet, where r is the annual interest rate earned by the account. Let A = $16,000 and r = 7%. A) What is the value of the account, in dollars, after 17 years? Give your answer rounded to two decimal places. Answer $ B) What is the exact instantaneous rate of change of the value of the account at exactly 18 years? Give your answer rounded to two decimal places. dollars per year C) At what time, in years, is the instantaneous rate of change of the value of the account increasing by $31,134.88 per year? If necessary, round your answer to two decimal places. Answer: Answer: After years. D) What is the average rate of change of the future value of the account between year 17 and year 19 (i.e. slope of the secant line connecting the points)? (Round to the nearest penny/cent.) dollars per year. (Round to two decimal places.) Answer:

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter12: Sequences, Series And Binomial Theorem
Section12.3: Geometric Sequences And Series
Problem 12.59TI: New grandparents decide to invest 3200 per month in an annuity for their grandson, The account will...
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When an initial amount of money, A, in dollars, is invested into an account that earns interest
continuously, the Future Value of the account after t years is given by the formula: F(t) = Aet, where r
is the annual interest rate earned by the account. Let A = $16, 000 and r = 7%.
A) What is the value of the account, in dollars, after 17 years? Give your answer rounded to two decimal
places.
Answer $
B) What is the exact instantaneous rate of change of the value of the account at exactly 18 years? Give
your answer rounded to two decimal places.
dollars per year
Answer:
C) At what time, in years, is the instantaneous rate of change of the value of the account increasing by
$31,134.88 per year? If necessary, round your answer to two decimal places.
Answer: After
years.
D) What is the average rate of change of the future value of the account between year 17 and year 19 (i.e.
slope of the secant line connecting the points)? (Round to the nearest penny/cent.)
dollars per year. (Round to two decimal places.)
Answer:
Transcribed Image Text:When an initial amount of money, A, in dollars, is invested into an account that earns interest continuously, the Future Value of the account after t years is given by the formula: F(t) = Aet, where r is the annual interest rate earned by the account. Let A = $16, 000 and r = 7%. A) What is the value of the account, in dollars, after 17 years? Give your answer rounded to two decimal places. Answer $ B) What is the exact instantaneous rate of change of the value of the account at exactly 18 years? Give your answer rounded to two decimal places. dollars per year Answer: C) At what time, in years, is the instantaneous rate of change of the value of the account increasing by $31,134.88 per year? If necessary, round your answer to two decimal places. Answer: After years. D) What is the average rate of change of the future value of the account between year 17 and year 19 (i.e. slope of the secant line connecting the points)? (Round to the nearest penny/cent.) dollars per year. (Round to two decimal places.) Answer:
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