Which of the following quadrilaterals have four congruent sides? a. parallelogram and rhombus b. parallelogram and square c. rectangle and rhombus d. rhombus and square select the best answer from the choices provided

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

For which pair of functions is (gof)(a)=|a|-2?

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?