The number n(t) of people in a community who are exposed to a particular advertisement is governed by the logistic equation. initially, n(0) = 700, and it is observed that n(1) = 1400. solve for n(t) if it is predicted that the limiting number of people in the community who will see the advertisement is 70,000. (round all coefficients to four decimal places.)

Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.