Amermaid is swimming at a sea level when a human comes up by. she dives underwater at a rate of 8 meters per second. she continues to descend for 20 seconds. what depth is she now?

In triangles abc and wxy, a=w and b=x which of the following must be true to prove abc=wxy by the aas theorem? a.ab=bc b.bc=xy c.ab=wx d.

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

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?