If x and y are positive integers, is x - y always positive? explain.

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Place the following steps in order to complete the square and solve the quadratic equation,

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.