Is -8+5 addition yes or no ?

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) .

How can you find the magnitude of a vector, v = < x,y > , where the horizontal change is x and the vertical change is y?

Benefit(s) from large economies of scale, in which the costs of goods decrease as output increases. natural monopolles perfect competition