3. (09.04 MC) Using the following equation, find the center and radius: x2 + 2x + y2 + 4y = 20 (5 points) O 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.

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Find the value of x. round the length to the nearest tenth