20 POINTS HELP ASAP Using the following equation, find the center and radius: x2 + 2x + y2 + 4y = 20

The center is located at (1, 2), and the radius is 25.

The center is located at (−1, 2), and the radius is 25.

The center is located at (−1, −2), and the radius is 5.

The center is located at (1, 2), and the radius is 5.

A) find the derivative of the inverse to f(x) = 3x + sint at x 6. b) (cale) find the derivative of the inverse to f(x)+3sin at x 6. if x +2y -34, ind he behaviar of the cure at 4,.3), c) a. increasing, concave up d. decreasing, concave down b. increasing, concave down e. decreasing, inflection point c. decreasing, concave up