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* 00 Your answer is partially correct. Whooping cough was thought to have been almost wiped out by vaccinations. It is now known that the vaccination wears off, leading to an increase' in the number of cases, w, from 1248 in 1981 to 25,827 in 2004. (a) With t in years since 1980, find an exponential function that fits this data. NOTE: Round numbers to three decimal places if necessary. Number of cases: w = (b) What does your answer to part (a) give as the average annual percent growth rate of the number of cases? NOTE: Round your answer to the nearest percent. The annual percent growth rate is 23 G Search or type URL %24 2 3. 5. 7. 6 R

* 00 Your answer is partially correct. Whooping cough was thought to have been almost wiped out by vaccinations. It is now known that the vaccination wears off, leading to an increase' in the number of cases, w, from 1248 in 1981 to 25,827 in 2004. (a) With t in years since 1980, find an exponential function that fits this data. NOTE: Round numbers to three decimal places if necessary. Number of cases: w = (b) What does your answer to part (a) give as the average annual percent growth rate of the number of cases? NOTE: Round your answer to the nearest percent. The annual percent growth rate is 23 G Search or type URL %24 2 3. 5. 7. 6 R

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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* 00 Your answer is partially correct. Whooping cough was thought to have been almost wiped out by vaccinations. It is now known that the vaccination wears off, leading to an increase' in the number of cases, w, from 1248 in 1981 to 25,827 in 2004. (a) With t in years since 1980, find an exponential function that fits this data. NOTE: Round numbers to three decimal places if necessary. Number of cases: w = (b) What does your answer to part (a) give as the average annual percent growth rate of the number of cases? NOTE: Round your answer to the nearest percent. The annual percent growth rate is 23 G Search or type URL %24 2 3. 5. 7. 6 R
Transcribed Image Text:* 00 Your answer is partially correct. Whooping cough was thought to have been almost wiped out by vaccinations. It is now known that the vaccination wears off, leading to an increase' in the number of cases, w, from 1248 in 1981 to 25,827 in 2004. (a) With t in years since 1980, find an exponential function that fits this data. NOTE: Round numbers to three decimal places if necessary. Number of cases: w = (b) What does your answer to part (a) give as the average annual percent growth rate of the number of cases? NOTE: Round your answer to the nearest percent. The annual percent growth rate is 23 G Search or type URL %24 2 3. 5. 7. 6 R
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