10. [-/1 Points] DETAILS Math 110 Course Resources - Curve Sketching Course Packet on points of diminishing & increasing returns The total monthly revenue R(x) generated from sales of Calculus videos is related to the amount x spent on advertising by R(x)= -2x3 + 30x2 +70x + 70 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. [0/1 Points] DETAILS PREVIOUS ANSWERS MY 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)= 3x - 18x2 - 693x + 5858 where x is in thousands of dollars and OS x $ 11. Which one of the following statements is true? There are no points of increasing or diminishing returns. $2000 is a point of diminishing returns. $1000 is a point of diminishing returns. $1000 is a point of increasing returns. $2000 is a point of Increasing returns. Viewing Saved Work Revert to Last Response Submit