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The fuel efficiency for a certain midsize car is given by E(V) = -0.018V2 + 1.620V...
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...
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
Question 12 1.66 pts Let g(v) be the fuel efficiency of a car moving at v miles per hour, where the efficiency is measured in miles per gallon. What are the units of d(u)? miles hour hours mule (miles/gallon (miles/hour)
A certain car has a fuel efficiency of 36.4 miles per gallon (mi/gal). Express this efficiency in kilometers per liter (km
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...
Dylan Jones kept careful records of the fuel efficiency of his new car. After the first eleven times he filled up the tank, he found the mean was 27.3 miles per gallon (mpg) with a sample standard deviation of 1.3 mpg. Compute the 95% confidence interval for his mpg.
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...
7. Dylan Jones kept careful records of the fuel efficiency of his new car. After the first nine times he filled up the tank, he found the mean was 24.3 miles per gallon (mpg) with a sample standard deviation of 0.9 mpg. a. Compute the 98% confidence interval for his mpg. How many times should he fill his gas tank to obtain a margin of error below 0.2 mpg? b.
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...
Automobile fuel efficiency is often measured in miles that the car can be driven per gallon of fuel (highway mpg). Suppose we have a collection of cars. We measure their weights and fuel efficiencies, and generate the following scatterplot. HIGHWAY 40 35 30 25 2500 3000 4000 3500 WEIGHT 25 2500 3000 4000 3500 WEIGHT Which equation is a reasonable description of the least squares regression line for the predicted highway mpg? O predicted highway mpg - 52.3 -0.0067 (weight)...