Given tan theta = -2 and pi/2 < theta < pi ; find cos2 theta

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

00 points ! missy’s rotation maps point k(17, –12) to k’(12, 17). which describes the rotation? 270° counterclockwise rotation 90° counterclockwise rotation 90° clockwise rotation 180° rotation

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry