Solve each of the following systems. express solution sets of dependent systems in parametric form. 3x + 2y - z = 2x - y + 2z = -2x + 5y - 3z = 0 9 (b) x + y - 2z + w x + 2 + 3w -x + 2y - 2 + 11w = -2 = 3 = 5

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.