The outside edge of a circular saw whose dimensions are measured in inches can be defined by the equation x2 + y2 = 33.0625. A hole needs to be cut in the center that can be defined by the equation x2 + y2 = 3.0625. The centers of the two curves are . The difference in the diameters of the circles is inches.

Triangle xyz, with vertices x(-2, 0), y(-2, -1), and z(-5, -2), undergoes a transformation to form triangle x′y′z′, with vertices x′(4, -2), y′(4, -3), and z′(1, -4). the type of transformation that triangle xyz undergoes is a . triangle x′y′z′ then undergoes a transformation to form triangle x′y′z′, with vertices x″(4, 2), y″(4, 3), and z″(1, 4). the type of transformation that triangle x′y′z′ undergoes is a .