An aircraft flying at an altitude of 9000ft passes directly over a group of vacationers hiking at 8500 ft. If O is the angle of elevation from the hikers to the aircraft, find the distanced from the group to the aircraft for the given angle (a) 0 = 60°
(b) 0 = 90°
(c) 0 = 130°

(a) The distance d from the group to the aircraft for 0 = 60° is ft
(b) The distance d from the group to the aircraft for 0 = 90° is ft
(c) The distance d from the group to the aircraft for 0 = 130° is ft

What is the approximate total length of iron edging needed to create the square frame and the two diagonals?

The avenues in a particular city run north to south and are numbered consecutively with 1st avenue at the western border of the city. the streets in the city run east to west and are numbered consecutively with 1st street at the southern border of the city. for a festival, the city is not allowing cars to park in a rectangular region bordered by 5th avenue to the west. 9th avenue to the east, 4th street to the south, and 6th street to the north. if x is the avenue number and yis the street number, which of the following systems describes the region in which cars are not allowed to park? 5th ave 9th ave

Precalculus question, image attached.