Using a graphing calculator or Desmos: Write a unique quadratic function equation in standard form

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).

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?