A. Determine the center and radius given the equation of a circle in standard form. 1. (x - 5)2 + (y + 4)2 = 64 2. (x+3)2 + y2 = 4 3. *2 + y2 = 49 4. x2 + ( + 6)2 = 121 5. x2 + y2 = 81​