Find the average annual depreciation for a car that cost $19000 three years ago and is now worth $12100

For which rational expression is -2 an excluded value of x?

Use the formulas a = x 2 – y 2, b = 2xy, c = x 2 + y 2 to answer this question. one leg of a right triangle has length 11 and all sides are whole numbers. find the lengths of the other two sides. the other leg = a0 and the hypotenuse = a1

If the scale factor between two circles is 2x/5y what is the ratio of their areas?