In the accompanying diagram of right triangle ABC, altitude ¯¯¯¯¯¯ B D B ⁣ D ¯ is drawn to hypotenuse ¯¯¯¯¯¯

In the 30-60-90 triangle below side s has a length of and side r has a length

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23