Find the value of y. Round your answer to the nearest tenth.
COS 64=Y/8

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).

What is the value of x in the diagram below?

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?