Which of the following formulas, when evaluated using rational values for the variables, will result in an irrational number?

the formula for the area of a circlethe formula for the area of a trapezoidthe formula for the area of a trianglethe formula for the area of a rectangle

Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.