what is the length of line segment cd?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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.

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x