1. (a)
Given that
5
4
sin A= and cos B=- where 0°S A 90° and 90° s B s180°.
13
5
Where a, b and ceR. Find the values of tan A and tan B. Hence, evaluate
tan( A-B).
(b) By using compound angle formula, express cos 75° in the form of
ſa-ſo
where a, b and ceR. State the values of a and b.
с
Hence, evaluate cos 150°

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:

Aplane intersects a pris paralel to the base of the prism. the cross section is a polygon wth eight sides. how many sides does the base of the prism have? a. 10 b. 8 c. 7 d. 9

Find the measure of the angle indicated in bold