A51-foot ladder is leaning up against a building . the top of the ladder reaches the wall at a height of 50 feet . how far is the bottom of the ladder from the building ?

Afootball quarterback has two more chances to throw a touchdown before his team is forced to punt the ball. he misses the receiver on the first throw 25% of the time. when his first throw is incomplete, he misses the receiver on the second throw 15% of the time. what is the probability of not throwing the ball to a receiver on either throw?