A tower is supported by a guy wire. The angle of inclination of the guy wire is 39 degrees. From the end of the guy wire the angle of elevation to the top of the tower is 53 degrees. The guy wire is fixed to the ground 7 m from the base of the tower

What is the area of the trapezoid shown ?

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?

Can someone tell me if this is perpendicular? !