Find expressions for the possible dimensions of the rectangular prism. v equals 12 y cubed plus 31 y squared plus 7 y

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).

Solve the equation below: (x+4)/6x=1/x a. x=2 b. x=0,2 c. x=-2 d. x=0,-2

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2