Mark is painting two rectangular doors. The first door has an area of 150 square feet. The second door is a dilation of the first door with a scale factor of 1.4. One gallon of paint will cover 80 square feet. How many gallons of paint will mark use to paint both doors?

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

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).

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.