Gas mileage depends in part on the speed of the car. gas mileage of a subcompact car is given by m(x) = -0.04x²+3.6x-49, where 20 < x < 70 represents the speed in miles per hour and m(x) is given in miles per gallon. At what speed will the car get the maximum gas mileage?

what is the maximum gas mileage?​

How do you find the distance of each number from the mean

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?

In the diagram, bc¯¯¯¯¯∥de¯¯¯¯¯ . what is ce ? enter your answer in the box.