t = 0, a bacterial culture weighs 4 grams. Three hours later, the culture weighs 5 grams. The maximum weight of the culture is 80 grams. (a) Write a logistic equation that models the weight of the bacterial culture. (Round your coefficients to four decimal places.) 0.0744t

College Algebra
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Chapter6: Exponential And Logarithmic Functions
Section: Chapter Questions
Problem 34PT: The population of a lake of fish is modeled by the logistic equation P(t)=16,1201+25e0.75t, where t...
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I need help with part c d and e 

At time t = 0, a bacterial culture weighs 4 grams. Three hours later, the culture weighs 5 grams. The maximum weight of the culture is 80 grams.
(a) Write a logistic equation that models the weight of the bacterial culture. (Round your coefficients to four decimal places.)
y = 4e0.0744t
(b) Find the culture's weight after 5 hours. (Round your answer to the nearest whole number.)
5.8025
g (c) When will the culture's weight reach 64 grams? (Round your answer to two decimal places.)
55.66
Xhr (d) Write a logistic differential equation that models the growth rate of the culture's weight. Then repeat part (b) using Euler's Method with a step size of h = 1. (Round
your answer to the nearest whole number.)
-0.0744t
(118.56) e
1+19e-0.0744t) 2
dy
y(5) = 5.73
5.669
X hr
X
g (e) At what time is the culture's weight increasing most rapidly? (Round your answer to two decimal places.)
Transcribed Image Text:At time t = 0, a bacterial culture weighs 4 grams. Three hours later, the culture weighs 5 grams. The maximum weight of the culture is 80 grams. (a) Write a logistic equation that models the weight of the bacterial culture. (Round your coefficients to four decimal places.) y = 4e0.0744t (b) Find the culture's weight after 5 hours. (Round your answer to the nearest whole number.) 5.8025 g (c) When will the culture's weight reach 64 grams? (Round your answer to two decimal places.) 55.66 Xhr (d) Write a logistic differential equation that models the growth rate of the culture's weight. Then repeat part (b) using Euler's Method with a step size of h = 1. (Round your answer to the nearest whole number.) -0.0744t (118.56) e 1+19e-0.0744t) 2 dy y(5) = 5.73 5.669 X hr X g (e) At what time is the culture's weight increasing most rapidly? (Round your answer to two decimal places.)
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