H(x) as a transformation of g(x)

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 measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

Let x = a + bi and y = c + di and z = f + gi. which statements are true?