How to find the shaded region of a circle with a rectangle inside?

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?

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

5(-9w) put expression in distributive property