(a)
\The logistic growth model of bacterium after hours is
eagles.
Substitute in logistic growth model to find the carrying capacity of the environment.
Therefore.the carrying capacity of the environment is eagles.
(b)
\The standard logistic growth model of population after years is
.
The logistic growth model of eagle after years is
eagles.
Compare the logistic model with standard logistic model ,
and
.
The growth rate is for standard logistic model is .
Therefore, the growth rate of the eagle is per year.
The growth rate of the eagle is per year.
(c)
\Find the population after years.
The equation is .
Substitute .
Therefore,the size of population after years is
eagles.
(d)
\Find the time when the size of population is eagles.
The equation is .
Therefore, the population reaches eagles after
years.
(e)
\The function is .
The carrying capacity of the environment is grams.
One-half the carrying capacity is grams.
The time when population size reaches grams .
Substituting .
Therefore, the population size of bacteria reaches one-half the carrying capacity after years.
(a) The carrying capacity of the environment is eagles.
(b) The growth rate of the eagle is per year.
(c) The size of population after years is
eagles.
(d) The populationreaches eagles after
years.
(e) The population size of bacteria reaches one-half the carrying capacity after years.