Biologists have proposed a cubic polynomial to model the length L of Alaskan rockfish at age A: L = 0.0155A³ – 0.372A² + 3.95A + 1.21, dL where L is measured in inches and A in years. Calculate - - (Round your answer to three decimal places.) dA A= 18 dL in/yr dA A= 18 Interpret your answer. A 18-year old rock fish shrinks at a rate of 5.624 in/yr. A 18-year old rock fish grows at a rate of 65.893 in/yr. A 18-year old rock fish shrinks at a rate of 65.893 in/yr. A 18-year old rock fish grows at a rate of 60.269 in/yr. OA 18-year old rock fish grows at a rate of 5.624 in/yr.
Biologists have proposed a cubic polynomial to model the length L of Alaskan rockfish at age A: L = 0.0155A³ – 0.372A² + 3.95A + 1.21, dL where L is measured in inches and A in years. Calculate - - (Round your answer to three decimal places.) dA A= 18 dL in/yr dA A= 18 Interpret your answer. A 18-year old rock fish shrinks at a rate of 5.624 in/yr. A 18-year old rock fish grows at a rate of 65.893 in/yr. A 18-year old rock fish shrinks at a rate of 65.893 in/yr. A 18-year old rock fish grows at a rate of 60.269 in/yr. OA 18-year old rock fish grows at a rate of 5.624 in/yr.
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter4: Polynomial And Rational Functions
Section4.CT: Chapter Test
Problem 4CT
Related questions
Question
Transcribed Image Text:Biologists have proposed a cubic polynomial to model the length L of Alaskan rockfish at age A:
L = 0.0155A3 - 0.372A? + 3.95A + 1.21,
dL
where L is measured in inches and A in years. Calculate
dA
(Round your answer to three decimal places.)
A = 18
dL
in/yr
dA TA = 18
Interpret your answer.
A 18-year old rock fish shrinks at a rate of 5.624 in/yr.
A 18-year old rock fish grows at a rate of 65.893 in/yr.
A 18-year old rock fish shrinks at a rate of 65.893 in/yr.
A 18-year old rock fish grows at a rate of 60.269 in/yr.
A 18-year old rock fish grows at a rate of 5.624 in/yr.
Need Help?
Read It
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
Recommended textbooks for you
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Algebra: Structure And Method, Book 1
Algebra
ISBN:
9780395977224
Author:
Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:
McDougal Littell