Three out of four doctors surveyed recommended the product.
Sixty doctors surveyed did not
recommend the product. How
many doctors were surveyed?

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20

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?