The air traffic controller at an airport spots a plane at an altitude of 20,000 feel with an angle of elevation of 22 dgree. what is the horizontal distance from the plane to the airport a. 49.5 miles
b. 4.09 miles
c. 10.11 miles
d. 9.38 miles
please explain why.

Katlyn made 4 dresses with 7 yards of fabric. how many yards did she use on 1 dress?

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.

What is the area of the shaded sector?