10,11

10. [-/1 Points] DETAILS MY NOTES Math 110 Course Resources - Curve Sketching Course Packet on points of diminishing & increasing returns The total monthly revenue R(x) generated from sales of Math t-shirts is related to the amount x spent on advertising by R(x)= -5x3+ 60x2+ 80x+ 80 where x is in thousands of dollars. Calculate the point of diminishing returns for advertising costs. The point of diminishing returns occurs at x - This means that if more than dollars is spent on advertising, then each additional dollar spent produces a ---Select--- @ return on investment than the previous dollar. 11. [-/1 Points] DETAILS MY NOTES Math 110 Course Resources - Curve Sketching Course Packet on points of diminishing & increasing returns The total monthly revenue R(x) generated from sales of Math t-shirts is related to the amount x spent on advertising by R(x) = 2x3 - 18x2 + 66x + 80 where x is in thousands of dollars and OS x s 6. Which one of the following statements is true? $2000 is a point of increasing returns. There are no points of increasing or diminishing returns. O,$3000 is a point of diminishing returns. $3000 is a point of increasing returns. $2000 is a point of diminishing returns