When using the rational root theorem what is the root of f(x)=2x^2-4x+9

Which value is not a solution of 8x^3 – 1 = 0

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

The computer that controls a bank's automatic teller machine crashes a mean of 0.6 times per day. what is the probability that, in any seven-day week, the computer will crash less than 5 times? round your answer to four decimal places