Arnie is sitting at the edge of a lake, flying a kite. the lenght of the kite is 85m. he estimates the angle of elevation to the kite to be 30°. what is the length of the kite above the water?

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

What is the area of triangle abc if a = 8, b = 11, and c = 15?

Adaycare center charges a $75 enrollment fee plus $100 per week. which of the following represents the cost of sending a child to daycare for 14 weeks?