A traffic police man waves his arm in in the air for traffic to go by he moved his arm in a way that forms a 75 degree angle how many square cm does his arm sweep if his arm is 60 cm long

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?

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

The length of a rectangle plus its width is 25 cm. the area is 156 square cm. what are the length and width of the rectangle? separate the answers with a comma.