If QR=13 and PT=8, find QT. Round to the nearest tenth.

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

Which expression gives the area of the triangle shown below

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle