This exercise uses the population growth model. The bat population in a certain Midwestern county was 220,000 in 2012, and the observed doubling time for the population is 31 years. (a) Find an exponential model n(t) = no2/a for the population t years after 2012. n(t) = (b) Find an exponential model n(t) = noert for the population t years after 2012. (Round your r value to four decimal places.) n(t) = (c) Sketch a graph of the population at time t. n(t) n(t) 1400000 1400000 1200000 1200000 1000000 1000000 800000 800000 600000 600000 400000- 400000 200000 200000 10 20 30 40 50 60 10 20 30 40 50 n(t) n(t) 1400000 1400000 1200000 1200000 1000000 1000000 800000 800000 600000 600000 400000 400000 200000 200000 10 20 30 40 50 60 10 20 30 40 50 (d) Estimate how long it takes the population to reach 2 million. (Round your answer to two decimal places.) yr

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
icon
Related questions
icon
Concept explainers
Question
This exercise uses the population growth model.
The bat population in a certain Midwestern county was 220,000 in 2012, and the observed doubling time for the population is
31 years.
(a) Find an exponential model n(t) = no2/a for the population t years after 2012.
n(t) =
(b) Find an exponential model n(t) = noert for the population t years after 2012. (Round your r value to four decimal
places.)
n(t) =
(c) Sketch a graph of the population at time t.
n(t)
n(t)
1400000
1400000
1200000
1200000
1000000
1000000
800000
800000
600000
600000
400000
400000
200000
200000
t
60
10
30
40
50
10
20
30
40
50
n(t)
n(t)
1400000
1400000
1200000
1200000
1000000
1000000
800000
800000
600000
600000
400000
400000
200000
200000
10
20
30
40
50
60
10
20
30
40
50
(d) Estimate how long it takes the population to reach 2 million. (Round your answer to two decimal places.)
yr
20
Transcribed Image Text:This exercise uses the population growth model. The bat population in a certain Midwestern county was 220,000 in 2012, and the observed doubling time for the population is 31 years. (a) Find an exponential model n(t) = no2/a for the population t years after 2012. n(t) = (b) Find an exponential model n(t) = noert for the population t years after 2012. (Round your r value to four decimal places.) n(t) = (c) Sketch a graph of the population at time t. n(t) n(t) 1400000 1400000 1200000 1200000 1000000 1000000 800000 800000 600000 600000 400000 400000 200000 200000 t 60 10 30 40 50 10 20 30 40 50 n(t) n(t) 1400000 1400000 1200000 1200000 1000000 1000000 800000 800000 600000 600000 400000 400000 200000 200000 10 20 30 40 50 60 10 20 30 40 50 (d) Estimate how long it takes the population to reach 2 million. (Round your answer to two decimal places.) yr 20
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Knowledge Booster
Continuous Probability Distribution
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, trigonometry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Trigonometry (11th Edition)
Trigonometry (11th Edition)
Trigonometry
ISBN:
9780134217437
Author:
Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:
PEARSON
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781305652224
Author:
Charles P. McKeague, Mark D. Turner
Publisher:
Cengage Learning
Algebra and Trigonometry
Algebra and Trigonometry
Trigonometry
ISBN:
9781938168376
Author:
Jay Abramson
Publisher:
OpenStax
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781337278461
Author:
Ron Larson
Publisher:
Cengage Learning