1. Which of the following reasons is valid for proving a quadrilateral is a trapezoid? (1) Diagonals bisect angles
(2) All sides are congruent
(3) All sides are parallel
(4) One pair of opposite sides are parallel and one is not

Use properties to rewrite the given equation. which equations have the same solution as 2.3p – 10.1 = 6.5p – 4 – 0.01p?

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) .

Precalculus question, image attached.