A company has found that the marginal cost (in thousands of dollars) to produce x central air conditioning units is c'(x)= , where x is the number of units produced (a) Find the cost function, given that the company incurs a fixed cost of $10,000 even if no units are built. (b) The company will seek a new source of investment income if the cost is more than $15,000 to produce 5 units. Should they seek this new source? (a) What substitution should be used to determine the cost function? Use the quantity in the denominator as the substitution, u = 3x? .so that du = 6x dx. Required information The following information applies to the questions displayed below.) York's outstanding stock consists of 65,000 shares of noncumulative 70% preferred stock with a $5 par value and also 110,000 shares of common stock with a $1 par value. During its first four years of operation, the corporation declared and paid the following total cash dividends. Year 1 total cash dividends Year 2 total cash dividends Year 3 total cash dividends Year 4 total cash dividends $ 11,500 20,700 260,000 410,000 Use the data in Exercise 11-10 to determine the amount of dividends paid each year to each of the two classes of stock assuming that the preferred stock is cumulative. (Round your "Dividend per Preferred Share" answer to 3 decimal places.)