Solve |x - 5| = 7 .

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

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

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