What is the domain of the relation (8, -2), (4,-2), (3, 2), (-5, -3)? A. {8,4,3, -5}
B. {-8, -4, 3, 5)
C. 2-5, -3, 4, 8}
D. 2-3, -2, 2}

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).

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

Average acceleration: i have no idea how to do this.