certain pairs of triangles are shown below. The column heading represents various theorems used to prove triangles are similar. identify which theorem is appropriate to prove each pair of triangles similar and then classify the triangles under the column heading.

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?