Your Porsche's gas mileage (in miles per gallon) is given as a function M(x) of speed x in miles per hour. It is found that 3,600x-2 - 1 (3,600x-1 + x)2 M'(x) Estimate M'(40), M'(60), and M'(100). (Round your answers to seven decimal places.) M'(40) = mpg/mph M'(60) = mpg/mph M'(100) = mpg/mph

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11.2 HW - Mat 210, section 24270, Spring 2021 | WebAssign
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WANEFMAC7 11.2.029.
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PRACTICE ANOTHER
Your Porsche's gas mileage (in miles per gallon) is given as a function M(x) of speed x in miles per hour. It is found that
-2 - 1
3,600x
(3,600x-1 + x)2
M'(x) =
%3D
Estimate M'(40), M'(60), and M'(100). (Round your answers to seven decimal places.)
M'(40) =
mpg/mph
%3D
M'(60) =
mpg/mph
M'(100) =
mpg/mph
What do the answers tell you about your car?
The results mean that at a speed of 40 mph, the fuel economy is increasing at a rate of
miles per gallon per 1 mph increase in speed, at a speed of 60 mph, the fuel economy is neither
increasing nor decreasing, and at a speed of 100 mph, the fuel economy is decreasing at a rate of
miles per gallon per 1 mph increase in speed. Thus, 60 mph is the most fuel-efficient
speed for the car.
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Transcribed Image Text:A webassign.net 11.2 HW - Mat 210, section 24270, Spring 2021 | WebAssign What is the answer to this? | Yahoo Answers (Get Answer) - Your Porsche's gas mileage (in miles per gallon) is given as a... Tra... 4. [-/25 Points] DETAILS WANEFMAC7 11.2.029. MY NOTES PRACTICE ANOTHER Your Porsche's gas mileage (in miles per gallon) is given as a function M(x) of speed x in miles per hour. It is found that -2 - 1 3,600x (3,600x-1 + x)2 M'(x) = %3D Estimate M'(40), M'(60), and M'(100). (Round your answers to seven decimal places.) M'(40) = mpg/mph %3D M'(60) = mpg/mph M'(100) = mpg/mph What do the answers tell you about your car? The results mean that at a speed of 40 mph, the fuel economy is increasing at a rate of miles per gallon per 1 mph increase in speed, at a speed of 60 mph, the fuel economy is neither increasing nor decreasing, and at a speed of 100 mph, the fuel economy is decreasing at a rate of miles per gallon per 1 mph increase in speed. Thus, 60 mph is the most fuel-efficient speed for the car. Need Help? Read It Watch It Submit Answer Submit Assignment Save Assignment Progress Home My Assignments +Request Extension Copyright © 1998 - 2021 Cengage Learning, Inc. All Rights Reserved TERMS OF USE PRIVACY
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ISBN:
9781305652224
Author:
Charles P. McKeague, Mark D. Turner
Publisher:
Cengage Learning