If (2, −7) and (8, 15) are the endpoints of a diameter of a circle, what is the equation of the circle? A) (x + 5)2 + (y − 4)2 = 60 B) (x − 5)2 − (y − 4)2 = 80 C) (x − 5)2 − (y + 4)2 = 110 D) (x − 5)2 + (y − 4)2 = 130

Determine the common ratio and find the next three terms of the geometric sequence. 10, 2, 0.4, a. 0.2; -0.4, -2, -10 c. 0.02; 0.08, 0.016, 0.0032 b. 0.02; -0.4, -2, -10 d. 0.2; 0.08, 0.016, 0.0032 select the best answer from the choices provided a b c d