Posted by **Algebra 2** on Monday, June 8, 2009 at 9:24pm.

Could you please show me step by step how to solve this problem?

Suppose that the equation of an ellipse is 36X^2 + 81y^2 = 2916

Find the major and minor radii. Use these numbers and the realtionship in problem 11 to calculate c, the focal readius for this elipse.

number 11 stated exlapin why b^2 + c^2 = a^2. Write this relationship on your index card.

THANK YOU!

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