A defense contractor is starting production on a new missile control system. On the basis of data collected during assembly of the first 9 control systems, the production manager obtained the function below for the rate of labor use. Approximately how many labor-hours will be required to assemble the 10 th through 16 th control units? [Hint: Let a =9 and b=16. L(x)=2,000x1/2 Set up the definite integral 9dx