4. The navigator of a ship on a N44°E course sights a buoy with a bearing of S46°E.
After the ship sails 15 km along the same course, the navigator sights the same buoy w
a bearing S12°E. Find the distance between the ship and the buoy at the time of each
sighting.

The path traveled by a bottlenose dolphin as it jumps out of water is modeled by the equation y=-0.4+3x, where t is the height above water and x is the horizontal distance in feet. if a beam of light is shone upward at an angle modeled by the equation x+y=10, at what height from the waters surface will the beam of light hit the dolphin