The equation of a circle is (2 – 2)2 + (y+4)2 = 36. What are its center (h, k) and its radius r?
А
The center is (2, 4) and the radius is 6.
B.
The center is (2, -4) and the radius is 6.
С
The center is (-2,-4) and the radius is 6.
D
The center is (2, -4) and the radius is 36.

Ascuba diver was 80 feet below sea level and swam up at a rate of 4 feet per minute. the two solutions show how long it took the scuba diver to reach an elevation of 20 feet below sea level. lydia and max used the methods shown below to find the time it took the diver to reach the new elevation.

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?