Answer:
<h2>C. (-1, 9)</h2>
Step-by-step explanation:

Answer:
r~ 49.97
Step-by-step explanation:
I guess concentric circles
Answer:


Step-by-step explanation:
We have the system of equations:

Let's solve by substituting. We know that
, so we can substitute
in as
in the equation
.

Simplify this down so that we have
on one side of the equation:

Now that we know the value of
, we can substitute it in to the equation
to find
.

Hope this helped!
Answer:
z = -2
Step-by-step explanation: