Write a coordinate proof. Use the diagram to prove that the perpendicular bisector of a chord of a circle contains the center of the circle.

I'm confused on this could anyone me and show me what i need to do to solve it.

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

Margie is practicing for an upcoming tennis tournament. her first serve is good 20 out of 30 times on average. margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. how could she design a simulation for this scenario?