If the angle of depression is 0.7 degrees, we can use the tangent of the angle to find the relation between the distance from the lighthouse to the ship and the observer's elevation.
tangent(0.7) = observer's elevation / distance from the lighthouse to the ship
it will be 14 more minuted because she has completed 5/19 minutes it takes to reach the beach.. we can get this answer by taking the total number of minuted to get to the beach (19) and subtract the number of minutes she has already walked (5)..... our answer is that she has 14 minutes left till she reaches the beach.
