What is the height of a right circular cone with a volume of 290 cubic inches and a radius of 9 inches? Use 3.14 for pi. Round your answer to the nearest hundredth.

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Suppose i flip two identical coins. what is the probability that i get one head and one tail?