An aircraft seam requires 22 rivets. the seam will have to be reworked if any of these rivets is defective. suppose rivets are defective independently of one another, each with the same probability. (round your answers to four decimal places.)
(a) if 19% of all seams need reworking, what is the probability that a rivet is defective?
(b) how small should the probability of a defective rivet be to ensure that only 9% of all seams need reworking?

What are the soultion(s) to the quadratic equation 40- x^2=0

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:

Ineed to know the answer to this algebra question.