Which of the following are identities? Check all that apply. A. sin^2x = 1 - cos^2x
B. sin^2x - cos^2x = 1
C. tan^2x= 1 + sec^2x
D. cot^2x= csc^2-1

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

1. are the corresponding angles congruent 2. find the ratios of the corresponding sides 3. is triangle jkl congruent to triangle rst? if so what is the scale factor

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?