When teachers see long series of questions posted with no attempts on the student's part, they are unlikely to respond. If you add what YOU THINK or what YOU HAVE TRIED, you're more likely to be helped.
=)
Find the foci of the ellipse:
(x^2/400)+(y^2/625)=1
2 answers
well that is problem, I have no clue how to do it or where to start...
1 answer