When going more than 38 miles per hour, the gas mileage of a certain car fits the model 4072-01-02-03-00_files/i012.jpg where x is the speed of the car in miles per hour and y is the miles per gallon of gasoline. based on this model, at what speed will the car average 15 miles per gallon? (round to nearest whole number.) a. 149 c. 48 b. 98 d. 73

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet

In the diagram below de and ed are tangent to 0 which expression gives the measure of def