From the top of a lighthouse, the angle of depression of a speed boat is 23°. The boat is 100 meters form the base of the lighthouse. What is the height of the lighthouse?

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Need on this geometry question. explain how you did it.