Answer: D.
Step-by-step explanation:
the ratio of 12/4 is the same as 3
Answer:
Answer is a
Step-by-step explanation:
I don't want to explain
Answer:

Explanation:
A circle whose center is
and radius
, has equation:

The center of circle is given as origin
, therefore:

This circle passes
, then the radius of circle is the distance
between origin
and 

=> 
Substitute
,
, and
back into original equation:

or

Hope this helps!
:)
I think 89 I don’t know why I am just guessing
Answer:
Easy, 4 units
Step-by-step explanation: