FINAL GEOMETRY QUESTION!! PLEASE HELP

Step-by-step explanation:

The error was in Step 2.  The student attempted to "complete the square" by adding 4 to x^2 + 4x and then subtracting 4 from the other side of the equation.  

The work, if done correctly, would look like this:

x^2 + 4x + 4 - 4 = -y^2 + 20.

This condenses to:

(x + 2)^2 - 4 + y^2 = 20

(x + 2)^2 + y^2 = 24

This circle has its center at (-2, 0) and its radius is √24 = √4√6, or 2√6

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (

answer: the answer is ann