Concept explainers
a .
To find: is the population of Italy increasing or decreasing.
a .
Answer to Problem 62E
Increasing
Explanation of Solution
Given:
The population P (in millions) of Italy from 2003 through 2015 can be approximated by the model
Where t represents the year, with
The graph of the equation
By looking at the graph it is clear that the population of Italy increasing.
b.
To find: the populations of Italy in 2003 and 2015.
b.
Answer to Problem 62E
Population of Italy in 2003 is nearly 58.5 million.
Population of Italy in 2015 is nearly 62.2 million.
Explanation of Solution
Given:
The population P (in millions) of Italy from 2003 through 2015 can be approximated by the model
Where t represents the year, with
The population of Italy in 2003 is found by substituting
Thus, population of Italy in 2003 is nearly 58.5 million.
The population of Italy in 2015 is found by substituting
Thus, population of Italy in 2015 is nearly 62.2 million.
c.
To find: the populations of Italy in 2020 and 2025.
c.
Answer to Problem 62E
Population of Italy in 2020 is nearly 63.8 million.
Population of Italy in 2025 is nearly 65.4 million.
Explanation of Solution
Given:
The population P (in millions) of Italy from 2003 through 2015 can be approximated by the model
Where t represents the year, with
The population of Italy in 2020 is found by substituting
Thus, population of Italy in 2025 is nearly 63.8 million.
The population of Italy in 2025 is found by substituting
Thus, population of Italy in 2025 is nearly 65.4 million.
Chapter 3 Solutions
EBK PRECALCULUS W/LIMITS
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- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning