Artie's dad's house is 21 ft tall. if artie's dad is at the top of the house installing shingles, and his son artie is on the ground 12 ft away from the base of his dad's house, what is the angle of depression from the top of the house to the spot where artie is standing? round to the nearest hundredth.

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

What are the solutions to the following equation? |m| = 8.5 the value of m is equal to 8.5 and because each distance from zero is 8.5.