Question

. mc011-1.jpg
mc011-2.jpg is tangent to circle O at B. What is the length of the radius r? Round to the nearest tenth.

11.0
8.4
4.8
23.0
20. mc071-1.jpg
What is mc071-2.jpg?

20
43
63
23
21. Which point lies outside the circle with equation (x - 2)2 + (y + 3)2 = 4?

(2, -4)
(2, 0)
(1, -4)
(0, -3)
22. What is the area of the circle whose equation is (x - 9)2 + (y - 3)2 = 64?

8p
16p
64p
4p
23.
What is the value of x to the nearest tenth?

8.0
20.8
9.6
12.8
24. mc055-1.jpg
What is the value of b?

224
106
120
76