Which of the following statements is true of a cookie? a. A cookie can create copies of itself and spread to other networks to execute and replicate again. b. The one time password of a transaction is captured and stored under a cookie on a company’s Web server. c. A cookie pulls data from disparate data sources to populate and maintain a data warehouse. d. Data about user preferences and activity is captured and stored under a cookie on a company’s Web server.

The volume v and paper surface area a of a conical paper cup are given by where r is the radius of the base of the cone and h is the height of the cone. a. by eliminating h, obtain the expression for a as a function of r and v. b. create a user-de ned function that accepts r as the only argument and computes a for a given value of v. declare v to be global within the function. c. for v ! 10 in.3 , use the function with the fminbnd function to compute the value of r that minimizes the area a. what is the corresponding value of the height h? investigate the sensitivity of the solution by plotting v versus r. how much can r vary about its optimal value before the area increases 10 percent above its minimum value?