Aship traveled 150 km with the current, and then turned around and traveled back, spending 5h and 30 min on its trip. find the speed of the current if the speed of the ship in still water is 55 km/hour.

Suppose a least-squares regression line is given by modifyingabove y with caret equals 4.302 x minus 3.293. what is the mean value of the response variable if xequals20?

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?