d. To simplify calculations, a student uses a tangent line approximation to P(t) at 1=0 as a model for the level of pollutants in the lake. At what time t does this model predict that the pollutant levels in the lake will be safe?
d. To simplify calculations, a student uses a tangent line approximation to P(t) at 1=0 as a model for the level of pollutants in the lake. At what time t does this model predict that the pollutant levels in the lake will be safe?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Related questions
Topic Video
Question
100%
I only need parts d and e answered.
I don't need the answers to parts a, b, or c.
Thank you.

Transcribed Image Text:d. To simplify calculations, a student uses a tangent line approximation to P(t) at 1=0 as a model for
the level of pollutants in the lake. At what time t does this model predict that the pollutant levels in
the lake will be safe?
e. Given your answers to parts c and d above, do you feel that the tangent line model is an appropriate
model to use? Explain your reasoning.

Transcribed Image Text:Before current environmental regulations were in place, a certain manufacturing plant released pollutants into
a stream that feeds into a small lake. The pollutants in the lake water have been deteriorating over time and
are currently changing at a rate that can be modeled by the function P'(t)=1–3e02di , in gallons/year. A
local college professor has been taking her classes to monitor the pollutant levels for the past 5 years. They
estimated the pollutant levels to be 50 gallons their first year of collecting data (time t = 0). A level of <38
gallons is considered safe.
a. Show that the pollutants in the lake are currently decreasing (t= 5).
b. Use methods of calculus to determine the value of t for which the pollutant levels are at a minimum.
c. Use methods of calculus to determine whether the pollutant levels are considered safe at the time you
found in part (b).
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 2 images

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, advanced-math and related others by exploring similar questions and additional content below.Recommended textbooks for you

Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated

Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education

Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY

Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated

Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education

Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY

Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,

