Which part of the electromagnetic spectrum can humans see with the naked eye? infrared light ultraviolet rays visible light ((this is obvious but just to make sure // my answer)) x-rays

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) .

Acircle has a circumference of 7.850 units. what is its radius?

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14