If the midpoint of a segment is (3,-11) and one endpoint is (-11,9), what are the coordinates of the other endpoint?

a) (17, -31)
b) (17, 31)
c) (-31, 17)
d) (-31, -17)

The diameter of a ball is 8 in. what is the volume of the ball? use 3.14 for pi. enter your answer as a decimal in the box. round only your final answer to the nearest hundredth.

How many days was the temperature above 90 degrees?

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).