X - y = 2
X+ y= -3

The end

What percent of the circle below is shaded?

Evaluate cos2θ for cosθ = square root of 3/2

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