Which of the following statements concerning expert systems is false? a. the blackboard displays the recommendation. b. an expert system can explain its recommendation. c. the knowledge base contains rules. d. expert systems cannot learn from their own mistakes. e. the knowledge base contains facts?

Is the following an example of social media viral marketing? indicate your response by selecting yes or no. when you sign onto your favorite social networking website, you get messages from friends who have seen a television show they thought was a "must see! "

If the polar bear were taken out of the food chain what would happen to the seal population the seal population would diminish the seal population would grow dramatically the seal population would stay the same the seal population would decrease slightly

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?