What is the positive solution to the equation 0 = -x2 + 2x + 1? Quadratic formula: x =
-b+- sqrt b2 - 4ac
/2a

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?