Find the equation of the circle with center (-3,8) and radius √3

Find an equation of the circle passing through the points  (−1, 3), (−4, 6), and (2, 2).

Three biologists are tracking a snake with an implanted transponder chip. The first biologist is at the point (6,0) and is 3 miles away. The second biologist is at the point (3, −1) and is 5 miles away. The third biologist is at the point (2,6) and is also 5 miles away. Find the following: part (1) three center radius equations for the distance from the snake to each biologist, part (2) three expanded equations for the circles from part (1), solve the equations to find the point (x, y) where the circles intercept.