Three consecutive integers add up to 282. what is the smallest one?

Aportion of a line bounded by two points is defined as

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 expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b