Question

If x=2 and r= 5, then y= what?
If r=25 and y= 15, then x= what?
If x=10 and y= 6, then whats r?

Answer 1

if u r using an equaiton u should include it in ur question

Answer 2

\[y=\sqrt{21}\]
x=20
\[r=2\sqrt{34}\]
assuming we are dealing with a circle (x^2 + y^2 = r^2)