these species in a certain locality is modeled by the function P(t) = 250cos t) + 950 where P(t) represents the population of porcupines in year t.
these species in a certain locality is modeled by the function P(t) = 250cos t) + 950 where P(t) represents the population of porcupines in year t.
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter7: Applying Fractions
Section7.1: Ratios
Problem 21WE
Related questions
Question
![Recent studies seem to indicate the population of North America
porcupine (Erethizon dorsatum) varies sinusoidally with the solar (sunspot)
cycle due to its effects on Earth's ecosystems. Suppose the population of
these species in a certain locality is modeled by the function P(t) =
250cos (t) + 950 where P(t) represents the population of porcupines in year
t.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5e04f6c8-690e-4112-94d8-cb0e753051a6%2F3350d1fa-351c-4b2d-a453-aa797e6d6923%2F66mkrbf_processed.png&w=3840&q=75)
Transcribed Image Text:Recent studies seem to indicate the population of North America
porcupine (Erethizon dorsatum) varies sinusoidally with the solar (sunspot)
cycle due to its effects on Earth's ecosystems. Suppose the population of
these species in a certain locality is modeled by the function P(t) =
250cos (t) + 950 where P(t) represents the population of porcupines in year
t.
![Estimate the number of years the number of population is less than 740
species.
A. 2 years
В. 4 years
С. 6 years
D. 8 years](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5e04f6c8-690e-4112-94d8-cb0e753051a6%2F3350d1fa-351c-4b2d-a453-aa797e6d6923%2Fe8acbdj_processed.png&w=3840&q=75)
Transcribed Image Text:Estimate the number of years the number of population is less than 740
species.
A. 2 years
В. 4 years
С. 6 years
D. 8 years
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