X 3 2 y 7 2 9 July 8, 2019 16 32 64 128 Y x 3 9x 2 7 x0 2 3/2x + 5/3y = 7 9x - 10y = 14 X 7 y 3 )( x 2 49 y 2 9 xy 21 What is the radius of a circle with the equation x 3 2 y 7 2 9 X - y = 3