The geometric sequence ai is defined by the formula: ai = 10

a; = 0;-1

10

Find the sum of the first 75 terms in the sequence.

Choose 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?