Question:

15 5/12 - 11 1/8

a. 4 7/28

b. 4 7/12

c. -4 1/3

d. -4 7/24

Multiplying an even number of negative numbers gives an answer that is choose from:

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) .

Is the square root of 4 plus the square root of 16 rational?