Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.3: Geometric Sequences
Problem 81E
Related questions
Question
1 Find the19th term of the arithmetic sequence. −9, −13,−17,−21,...
The 19th term is
2. Country A has an exponential growth rate of 3.1% per year. The population is currently 4,377,000, and the land area of Country A is
15,000,000,000 square yards. Assuming this growth rate continues and is exponential, after how long will there be one person for every square yard of land? This will happen in _______year(s).
3. The radioactive element carbon-14 has a half-life of 5750 years. A scientist determined that the bones from a mastodon had lost
63.2% of their carbon-14. How old were the bones at the time they were discovered? The bones were about________years old.
4. 1. Suppose that $15,758 is invested at an interest rate of 5.9% per year, compounded continuously.
a) Find the exponential function that describes the amount in the account after time t, in years.
b) What is the balance after 1 year? 2 years? 5 years? 10 years?
c) What is the doubling time?
a) Find the exponential function that describes the amount in the account after time t, in years.
b) What is the balance after 1 year? 2 years? 5 years? 10 years?
c) What is the doubling time?
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