**Pаrtiаl Credit Prоblem** (7 pоints tоtаl) ***Note: To receive any credit, show all supporting work and use the Calculus techniques developed not the shortcuts with your calculator unless otherwise indicated. You may use either the first or second derivative test and show all work to receive credit. Also be sure to show work to camera at the end of the HonorLock session to earn credit.*** The annual profit function for a manufacturer of precision gauges is modeled by the function