Heather has a bag with 3 marbles, 6 tennis balls, 2 apples, and 4 books. what is the ratio of books to tennis balls?

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 are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2

Using graph paper, determine the line described by the given point and slope. click to show the correct graph below.(0, 0) and 2/3