Consider the binomial random variable x with n = 43 and p = 0.2. (a) find the mean. (give your answer correct to one decimal place.) (b) find the standard deviation. (give your answer correct to two decimal places.)

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

Evaluate cos2θ for cosθ = square root of 3/2

What additional information could be used to prove abc =mqr using sas? check all that apply.