Calculate the equation of the circle which is centered at the point of intersection of the lines x+3y+3=0 and x+y+1=0 and its radius is equal to 5

Determine the equation of the circle with center (-6,2) containing the point (-9,-2)

Write the equation of the circle in standard form, (x - h)2 + (y – k)2 = r2. (r - (O) • (- - (C) . 2 +

Determine the equation of a circle whose center is at (4, 5) and tangent to the circle whose equation is x? +y?+4x+6y-23 =0. XXI. XXII. What is the equation of a circle whose diameter's endpoints are (-3, 2) and (12, -16)? XXIII. Find the equation of a circle with center on x + y = 4 and 5x + 2y + 1 = 0 and having a radius of 3.