In the diagram below the vertices of triangle DEF are the midpoints of the sides of equilateral triangle ABC, and the perimeter of triangle ABC is 36cm

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.

Which value would be a solution for x in the inequality 47-4x< 7

Find the distance between c and d on the number line c=3 and d=11