Ecologists estimate that, when the population of a certain city is x thousand persons, the average level L of carbon monoxide in the air above the city will be L ppm (parts per million), where L = 30 +0.4x + 0.0004x. The population of the city is estimated to be x=752 + 23t + 0.51 thousand persons t years from the present. Find the rate of change of carbon monoxide with respect to the population of the city, and the time rate of change of the population when t=2. How fast (with respect to time) is the carbon monoxide level changing at time t= 27 What is the rate of change of carbon monoxide with respect to the population of the city? (Type an expression using x as the variable.)

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
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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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Ecologists estimate that, when the population of a certain city is x thousand persons, the average level L of carbon monoxide in the air above the city will be L ppm (parts per million), where L = 30 +0.4x + 0.0004x. The population of the city is
estimated to be x= 752 + 23t + 0.51 thousand persons t years from the present. Find the rate of change of carbon monoxide with respect to the population of the city, and the time rate of change of the population when t= 2. How fast (with respect
to time) is the carbon monoxide level changing at time t= 27
What is the rate of change of carbon monoxide with respect to the population of the city?
(Type an expression using x as the variable.)
Transcribed Image Text:Ecologists estimate that, when the population of a certain city is x thousand persons, the average level L of carbon monoxide in the air above the city will be L ppm (parts per million), where L = 30 +0.4x + 0.0004x. The population of the city is estimated to be x= 752 + 23t + 0.51 thousand persons t years from the present. Find the rate of change of carbon monoxide with respect to the population of the city, and the time rate of change of the population when t= 2. How fast (with respect to time) is the carbon monoxide level changing at time t= 27 What is the rate of change of carbon monoxide with respect to the population of the city? (Type an expression using x as the variable.)
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