# Homework #5 due 10-6

Stewart Page 39 Problems 7-55 (odd)

The speed that a sailboat is capable of sailing is determined by three factors: its total length $L$, the surface area $A$ of its sails, and its displacement $V$. In general, a sailboat is capable of greater speed if it is longer, has a larger sail area, or displaces less water. To make sailing races fair, only boats in the same “class” can qualify to race together. For a certain race a boat is considered to qualify if $0.30L+0.38A^\frac{1}{2}-3V^\frac{1}{3}\leq 16$ where $L$ is measured in feet, $A$ in square feet, and $V$ in cubic feet. Use this inequality to answer the following questions: