
Concept explainers
(a)
To find: the equation for population growth model in terms of
(a)

Answer to Problem 38PPS
The equation for the area
Explanation of Solution
Given information:
In 1950, the world population was about
Consider the given information.
In 1950, the world population was about
So, In the
Substitute
Substitute
Therefore, the equation for population growth model in terms of
(b)
To find: the population of the world in the year 2000.
(b)

Answer to Problem 38PPS
The population in the year 2000 is
Explanation of Solution
Given information:
In 1950, the world population was about
Consider the given information.
Substitute
Therefore, the population in the year 2000 is
(c)
To find: the comparison of the estimated and actual population result.
(c)

Answer to Problem 38PPS
The estimate population of the world is greater than the actual population of the world.
Explanation of Solution
Given information:
In 1950, the world population was about
Consider the given information.
The calculated population of the world is
So, the estimate population of the world is greater than the actual population of the world.
Therefore, the estimate population of the world is greater than the actual population of the world.
(d)
To find: the population of the world in the year 2020.
(d)

Answer to Problem 38PPS
The population in the year 2020 is
Explanation of Solution
Given information:
In 1950, the world population was about
Consider the given information.
Substitute
Therefore, the population in the year 2020 is
Chapter 8 Solutions
Algebra 2
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