The kingda ka roller coaster is 456 ft tall. if you are at the top of the roller coaster and your friend is a horizontal distance of 837 ft from the point on the ground below you, what is the angle of depression from the top of the roller coaster to the spot where your friend is standing? round to the nearest hundredth.

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

Can anyone explain to me how to do this? anything will .

An incoming airplane is x miles due north from the control tower at an airport. a second incoming airplane is y miles due east of the same control tower. the shortest distance between the two airplanes is z miles. which of the following functions would best model the situation above?