Kim's car average 60 mph. robert, who travels by greyhound bus, will average 50 mph and the train that barb is riding averages 80 mph. when should kim, robert, and barb leave in order to arrive at a city 240 miles at 1: 30 pm

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

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Formulate alisha has a number in mind. if she adds three to her number the result is less than five. use this information to write and solve an inequality about alisha's number. then graph the solution set.