Find the midpoint of A and B where A has coordinates (-3,-5) and B has coordinates (4,4). Brainliest if you want :)

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground?