Find the midpoint between each pair of points .
(-7,8) and (-11,-13)

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

Average acceleration: i have no idea how to do this.

Acircle has a circumference of 28.36 units what is the diameter of the circle