Demand Function for Sports Watches The demand function for the Sicard sports watch is given by 60 d(x) = (0 5 x 5 20) 0.01x2 + 1 where x (measured in units of a thousand) is the quantity demanded per week and d(x) is the unit price in dollars. (a) Find d'(x). d'(x) = (b) Find the following values in dollars per thousand watches. (Round your answers to two decimal places.) d'(5) = $ per thousand watches d'(10) = $ per thousand watches d'(19) = $ per thousand watches Interpret the results. (Round your answers to two decimal places.) When the demand for watches is 5,000, the unit price for the watches is decreasing by $ per thousand watches. When the demand for watches is 10,000, the unit price for the watches is decreasing by $ per thousand watches. When the demand for watches is 19,000, the unit price for the watches is decreasing by $ per thousand watches