The hyperbolic cross section of a cooling tower is given by the equation 4x2 − y2 + 16y − 80 = 0. the center of the cooling tower is the same as the center of the hyperbola, and the x-axis represents the ground surface.

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?

What is the product of the radical expression. (7-2square root) (8+2 square root)

This is so hard and it’s for a test