Students in a fifth-grade class were given an exam. During the next 2 years, the same students were retested several times. The average score was given by the model f(t) = 91 11 log(t + 1), 0

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
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Chapter6: Exponential And Logarithmic Functions
Section6.6: Exponential And Logarithmic Equations
Problem 79SE: Recall the formula for continually compoundinginterest, y=Aekt. Use the definition of a...
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Students in a fifth-grade class were given an exam. During the next 2 years, the same students were
retested several times. The average score was given by the model
f(t) = 91 11 log(t + 1), 0st< 24
where t is the time in months. Round answers to at least 1 decimal point.
(a) What is the average score on the original exam?
(b) What was the average score after 6 months?
(c) What was the average score after 18 months?
Transcribed Image Text:Students in a fifth-grade class were given an exam. During the next 2 years, the same students were retested several times. The average score was given by the model f(t) = 91 11 log(t + 1), 0st< 24 where t is the time in months. Round answers to at least 1 decimal point. (a) What is the average score on the original exam? (b) What was the average score after 6 months? (c) What was the average score after 18 months?
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