Fifty percent of the people that get mail-order catalogs order something. find the probability that exactly tw0 of 10 people getting these catalogs will order something

Write the expression as a constant , a single trigonometric function, or a power of a trigonometric function. sin x cos x/ tan x

If value of cos330° is √3/2 then find tan165°.

A50-foot ladder is leaning against a vertical wall. if the base of the ladder is 45 feet from the base of the wall, find the angle the bottling of the ladder makes with the ground.