If 75% of nursing students are able to pass a drug calculation test, find the mean, variance, and standard deviation of the number of students who pass the test in a sample of 180 nursing students.

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15

Will give a: 122 b: 90 c: 48 d: 180

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?