Concept explainers
a.
To find the number of cell sites in the years 1998, 2003 and 2006 using the model.
a.
Answer to Problem 41E
The number of cell sites in the years 1998, 2003 and 2006 are and
Explanation of Solution
Given Information:
The number of cell sites(y) from 1985 to 2014 can be modeled by
Where represents the year, with corresponding to 1985.
Calculation:
For the year 1998:
For the year 2003:
For the year 2006:
b.
To graph the function using the graphing utility.
b.
Explanation of Solution
The graph of the given model is:
c.
To find the number of years required to reach 270,000 cell sites using the graph.
c.
Answer to Problem 41E
Years.
Explanation of Solution
From the above graph in part (b), the number of cell sites can be determined:
The above highlighted point (yellow mark) is where cell sites is 270,000 and the point is (270000, 30.2).
Therefore, number of years required to reach 270,000 cell sites = 1980+30 = 2010.
d.
To find the number of years required to reach 270,000 cell sites.
d.
Answer to Problem 41E
years.
Explanation of Solution
Given that,
Therefore, number of years required to reach 270,000 cell sites = 1980+30 = 2010.
Chapter 3 Solutions
EBK PRECALCULUS W/LIMITS
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning