The height , h , in feet of an object above the ground is given by h(t)=-16t^2+64t+190 , where t is the time in seconds . what is the height of the object after 2 seconds

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?