
Concept explainers
(a)
To calculate: The percentage of the information remembered initially according to the function f(x)=80e−0.5x+20 describing the percentage of information remembered by a person x weeks after learning.
(b)
To calculate: The percentage of the information remembered after 1 week according to the function f(x)=80e−0.5x+20 describing the percentage of information remembered by a person x weeks after learning.
(c)
To calculate: The percentage of the information remembered after 4 weeks according to the function f(x)=80e−0.5x+20 describing the percentage of information remembered by a person x weeks after learning.
(d)
To calculate: The percentage of the information remembered after 52 weeks according to the function f(x)=80e−0.5x+20 describing the percentage of information remembered by a person x weeks after learning.

Want to see the full answer?
Check out a sample textbook solution
Chapter 3 Solutions
Blitzer: Precalculus Essentials_5 (5th Edition)
- Find the derivative of the function. k(x) = − 6(5x +4) -arrow_forwardFind all values of x for the given function where the tangent line is horizontal. 3 =√x³-12x² + 45x+5arrow_forwardFind the equation of the tangent line to the graph of the given function at the given value of x. 6 f(x) = x(x² - 4x+5)*; x=2arrow_forward
- 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





