Answer:
If the radius is really 5.2, then the standard equation of this circle is:

Now, if there was a typo in your question, and the radius is "5", then, the equation becomes:

Explanation:
Recall that the standard equation for a circle of radius R, centered at
, is given by:

Therefore in the case of a circle of radius R = 5.2, and centered at (4, -2), we have:
