Answer:
2 units
Step-by-step explanation:
The given equation of the circle is:

The general equation of the circle is:

Comparing the given equation with the general equation we can say:
g = 4
f = -3
c = 21
The formula for radius of the circle is:

Using these values of the given circle, we get:

Therefore, the length of radius of the given circle is 2.
<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em><em>☝</em><em>✌</em><em>✌</em><em>✌</em><em>✌</em>
We can create the equation like this:
(x +2) * (x +0)
x^2 + 2x + 0 = 0
Answer:
B. -0.5
Step-by-step explanation:
I calculated it logically