Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.