The fuel economy (in miles per gallon) of a certain car is E(x) = −0.01x2 +...
The fuel economy (in miles per gallon) of a certain car is
E(x) = −0.01x2 + 0.54x +10.4,
where x is the driving speed (in miles per hour,
20 ≤ x ≤ 60).
At what speed is fuel economy greatest?
x = mph
Homework Answers
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The fuel economy (in miles per gallon) of a certain car is
E(x) = −0.01x2 +...
The fuel efficiency for a certain midsize car is given by E(V) = -0.018V2 + 1.620V...
The fuel efficiency for a certain midsize car is given by E(V) = -0.018V2 + 1.620V + 3.7 where E(v) is the fuel efficiency in miles per gallon for a car traveling v miles per hour. (a) What speed will yield the maximum fuel efficiency? Round to the nearest mile per hour. mph (b) What is the maximum fuel efficiency for this car? Round to the nearest mile per gallon. mpg Need Help? Read It Watch It Talk to a...
Check My Work A study on driving speed (miles per hour) and fuel efficiency (miles per...
Check My Work A study on driving speed (miles per hour) and fuel efficiency (miles per gallon) for midsize automobiles resulted in the following data: Click on the datafile logo to reference the data. DATA file Driving Speed Fuel Efficiency a. Which of the following is a scatter diagram with driving speed on the horizontal axis and fuel efficiency on the vertical axis. 30 50 40 55 30 25 60 25 50 55 28 25 25 23 30 32 21...
Your car gets 25 miles per gallon (mpg at 60 miles per hour (mph) and 18...
Your car gets 25 miles per gallon (mpg at 60 miles per hour (mph) and 18 mpg at 70 mph At what speed should you make a 600-mile trip: a. If gas costs $3 per gallon and your time is worth S12 per hour? b. If gas costs S4 per gallon and your time is worth $15 per hour? allon and your time is worth S10 per hour? d. Build a spreadsheet to calculate the total trip cost for gas...
Problem 8 (18 points) An individual wanted to determine the relation that might exist between speed and miles per gallon of an automobile. Let Xbe the average speed of a car on the highway mea...
Problem 8 (18 points) An individual wanted to determine the relation that might exist between speed and miles per gallon of an automobile. Let Xbe the average speed of a car on the highway measured in miles per hour andlet Y represent the miles per gallon of the automobile The following data is collected 50 28 60 62 20 65 26 25 20 17 d Predict the miles per gallon of a car traveling 63 miles per hour e Predict...
An individual wanted to determine the relation that might exist between speed and miles per gallon...
An individual wanted to determine the relation that might exist between speed and miles per gallon of an automobile. Let X be the average speed of a car on the highway measured in miles per hour and let Y represent the miles per gallon of the automobile. The following data is collected: X 50 55 55 60 60 62 65 65 Y 28 26 25 22 20 20 17 15 a. In the space below, draw a scatterplot of the...
A certain car has a fuel efficiency of 36.4 miles per gallon (mi/gal). Express this efficiency...
A certain car has a fuel efficiency of 36.4 miles per gallon (mi/gal). Express this efficiency in kilometers per liter (km
ASAP The speed of your automobile has a huge effect on fuel consumption. Traveling at 65...
ASAP
The speed of your automobile has a huge effect on fuel consumption. Traveling at 65 miles per hour (mph) instead of 55 mph can consume almost 20% more fuel. As a general rule, for every mile per hour over 55, you lose 2% in fuel economy. For example, if your automobile gets 30 miles per gallon at 55 mph, the fuel consumption is 21 miles per gallon at 70 mph. If you take a 400-mile trip and your average...
For a certain automobile, M(x) = - 015x2 +1.25x - 7.6,30s xs 60, represents the miles...
For a certain automobile, M(x) = - 015x2 +1.25x - 7.6,30s xs 60, represents the miles per gallon obtained at a speed of x miles per hour, (a) Find the absolute maximum miles per gallon and the speed at which it occurs. (b) Find the absolute minimum miles per gallon and the speed at which it occurs. (a) The absolute maximum miles per gallon is This occurs at mph. (Type an integer or decimal rounded to the nearest thousandth as...
The corporate average fuel economy (CAFE) standard for mileage is currently 26.5 miles per gallon of gasoline (the defen...
The corporate average fuel economy (CAFE) standard for mileage is currently 26.5 miles per gallon of gasoline (the defender) for passenger cars. To conserve fuel and reduce air pollution, suppose the u.s Congress sets the CAFE standard at 35 miles per gallon(the challenger) in 2010. An auto will emit on average 0.8 pounds of carbon dioxide(c02) per mile driven at 26.5 miles per gallon, and will emit 0.65 pounds of CO2 per mile driven at 35 miles per gallon. A....
Your used Chevy's gas mileage (in miles per gallon (mpg) is given as a function M...
Your used Chevy's gas mileage (in miles per gallon (mpg) is given as a function M (x) of speed in miles per hour (mph), where M(1) - 2000 Calculate M' (40), M' (50) and M' (60) rounded to two decimal places M' (40) = mpg/mph M' (50) = mpg/mph M' (60) = mpg/mph
The fuel efficiency for a certain midsize car is given by E(V) = -0.018V2 + 1.620V + 3.7 where E(v) is the fuel efficiency in miles per gallon for a car traveling v miles per hour. (a) What speed will yield the maximum fuel efficiency? Round to the nearest mile per hour. mph (b) What is the maximum fuel efficiency for this car? Round to the nearest mile per gallon. mpg Need Help? Read It Watch It Talk to a...
Check My Work A study on driving speed (miles per hour) and fuel efficiency (miles per gallon) for midsize automobiles resulted in the following data: Click on the datafile logo to reference the data. DATA file Driving Speed Fuel Efficiency a. Which of the following is a scatter diagram with driving speed on the horizontal axis and fuel efficiency on the vertical axis. 30 50 40 55 30 25 60 25 50 55 28 25 25 23 30 32 21...
Your car gets 25 miles per gallon (mpg at 60 miles per hour (mph) and 18 mpg at 70 mph At what speed should you make a 600-mile trip: a. If gas costs $3 per gallon and your time is worth S12 per hour? b. If gas costs S4 per gallon and your time is worth $15 per hour? allon and your time is worth S10 per hour? d. Build a spreadsheet to calculate the total trip cost for gas...
Problem 8 (18 points) An individual wanted to determine the relation that might exist between speed and miles per gallon of an automobile. Let Xbe the average speed of a car on the highway measured in miles per hour andlet Y represent the miles per gallon of the automobile The following data is collected 50 28 60 62 20 65 26 25 20 17 d Predict the miles per gallon of a car traveling 63 miles per hour e Predict...
ASAP
The speed of your automobile has a huge effect on fuel consumption. Traveling at 65 miles per hour (mph) instead of 55 mph can consume almost 20% more fuel. As a general rule, for every mile per hour over 55, you lose 2% in fuel economy. For example, if your automobile gets 30 miles per gallon at 55 mph, the fuel consumption is 21 miles per gallon at 70 mph. If you take a 400-mile trip and your average...
For a certain automobile, M(x) = - 015x2 +1.25x - 7.6,30s xs 60, represents the miles per gallon obtained at a speed of x miles per hour, (a) Find the absolute maximum miles per gallon and the speed at which it occurs. (b) Find the absolute minimum miles per gallon and the speed at which it occurs. (a) The absolute maximum miles per gallon is This occurs at mph. (Type an integer or decimal rounded to the nearest thousandth as...
Your used Chevy's gas mileage (in miles per gallon (mpg) is given as a function M (x) of speed in miles per hour (mph), where M(1) - 2000 Calculate M' (40), M' (50) and M' (60) rounded to two decimal places M' (40) = mpg/mph M' (50) = mpg/mph M' (60) = mpg/mph
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