It has been reported that 83% of federal government employees use e-mail. if a sample of 200 federal government employees is selected, find the mean of the number who use e-mail

Dilations map circles to circles and ellipses to ellipses with the same. true or false

In the 30-60-90 triangle below side s has a length of and side r has a length

Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π