Which of the following best describes set of numbers? 6, 9, 12, 15, infinite alternating sequence finite geometric sequence infinite arithmetic series infinite arithmetic sequence?

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 ratio of the length of an object in yards to the length of the same object in miles?

Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0