Solve for x in the diagram below

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).

Determine the area of a triangle with (see picture below)

The least common multiple is the multiple, other than 0, common to sets of multiples.