I'IDIIIEI IFIHI LIJ. .I'IZLILI'LIIIa Problem Set 6A: Optimization [Elf] Directions: Answer each question below, showing all work as described in class. Part A of this Problem Set is Iworth 45 points. The remaining points for Problem Set 6 will he in Part B. You must use correct notation. All answers should be exact. Note that there is a question 2 on the haclr. side. 1. A dune huggv is in a desert at a point A located 40 kilometers from point B. the closest point on a long, straight road. [In this same road is point C, 51] km from point B, and the finish line of the driver's race. The driver can go 45 l-cmfhr on the desert and }'5 kmfhr on the road. HDW far should she drive through the desert to minimize her driving time? {23 p13]