(a)
To calculate: The percentage of the information that is retrieved at the moment that it is learned, where the percentage of information retrieved is defined as a function of x as
(b)
To calculate: The percentage of the information that is retrieved 1 week after it is learned, where the percentage of information retrieved is defined as a function of x as
(c)
To calculate: The percentage of the information that is retrieved 4 weeks after it is learned, where the percentage of information retrieved is defined as a function of x as
(d)
To calculate: The percentage of the information that is retrieved 1 year after it is learned, where the percentage of information retrieved is defined as a function of x as
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College Algebra
- In Exercises, sketch the shifted exponential curves y = 2x - 1 and y = 2-x - 1arrow_forwardThe function models the number of people, f(t), in a city who have become ill with influenza t weeks after its initial outbreak. a. How many people became ill with the flu when the epidemic began? b. How many people were ill by the end of the sixth week? c. What is the limiting size of f(t), the population that becomes ill?arrow_forwardFrom 1975 to 2009, the age-adjusted incidence rate of invasive lung and bronchial cancer among women can be closely approximated by ƒ(t) = -0.038083t2 + 2.0899t + 24.262, where t is the number of years since 1975. Source: National Cancer Institute. Based on this model, in what year did the incidence rate reach a maximum? On what years was the rate increasing? Decreasing?arrow_forward
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage