after t hours of operation. an assembly line has assembled A(t)=15t-1/2t^2 power lawn movers. 0 After thouts of operation, an assembly line has assembled Art

after t hours of operation. an assembly line has assembled A(t)=15t-1/2t^2 power lawn movers. 0<_t suppose that the facory cost of manufacturing x units is c dollars where express factory as a function number hours operation assembly line. what first>

After thouts of operation, an assembly line has assembled Art cufacturing x units ic Coxj dollars, where C(x) -2875 +98x. (a)Express the factory's cost as a (composite) function of the numb (b)What is the cost of the first 2 hours of operation