What is the sign of 123\dfrac{1}{23} + \left(-123\dfrac{1}{23}\right)123 23
1

+(−123
23
1

)

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?