Course Homeb My Questions | bartlebyMath 148 weekend number 2.pdf x48%20weekend%20number%202.pdf日| + %00L15) After declining over the past century, the percentage of men aged 65 and older in the workforce hasbegun to rise in recent years, as shown by the following tableYearPercent of men 65 orolder in the workforce192055.6193054194041.8195045.833.1096197026.8198016.306000201017.720.5202023.3A) use the regression feature on your calculator to find a cubic function (use CubicReg) that models thedata LET x=0 correspond to the year 1920 and change all the other years accordinglyb) Use your answer in part a to the rate the at which the percent of men aged 65 and older in theworkforce was changing in 1965, 2015 and 202154°F Cloudy Course Homex b My Questions | bartlebyMath 148 weekend number 2.pdf xlath%20148%20weekend%20number%202.pdf%00LO HI+10) Find the slope of the tangent line to the graph of y = x+ – 5x + 2 when x=211) Find the equation of the tangent line to the graph in problem 10 when x=2.. Write the equation ofthe tangent line in slope intercept form12) Find all the values of x where the tangent line to y = 2x3 + 9x2 - 60x + 4 is horizontal (hinthorizontal lines have slope 0)13) Assume that the price, in dollars, of a sound system is given by000=DdWhere q represents the quantity demanded for the producta) Find the Revenue function R(g) and the marginal revenue function R'(q)b) Find an interpret (write a sentence explaining the meaning) of the marginal revenue when demand is10 systemsSuppose the cost of producing q sound systems is given by the equation C(q) = 0.4q2 + 160q + 50%3Dc) Find the profit function, P(q) and the marginal profit function P'(q)d) Find and interpret he marginal profit when the demand is 10 systems14) An analyst has found that a company's cost and revenue functions for a particular product are givenbyx2C(x) = 2x, R(x) = 6xRespectively where x is the number of items produceda) Find marginal cost function, the marginal revenue function and the marginal profit functionb) What value of x makes marginal profit equal 0c) Find the profit when the marginal profit is zero54°F Cloudy

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