If an isosceles triangle is continuously rotated around one of its medians, which 3-dimensional object is generated

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)