. Consider the system of components connected as in the accompanying picture. Components 1 and 2 are connected in parallel, so that subsystem works iff either 1 or 2 works; since 3 and 4 are connected in series, that subsystem works iff both 3 and 4 work. If components work independently of one another and P(component i works) = .9 for i = 1, 2 and= .8 for i = 3, 4, calculate P (system works).

At the restaurant i 23 Σ π, they have 5 soup, 25 appetizer, 25 salad, 22 entree, and 16 dessert options.  How many unique 5-course meals (consisting of one soup, one appetizer, one salad, one entree, and one dessert) can be created?

At the restaurant i 23 Σ π, they have 8 soup, 21 appetizer, 8 salad, 10 entree, and 20 dessert options.  How many unique 5-course meals (consisting of one soup, one appetizer, one salad, one entree, and one dessert) can be created?   Your Answer:

Suppose you are a recreation director at a summer camp. The water in the camp swimming pool was drained out for the winter and it is now time to refill the pool. One pipe can fill the empty pool in 12 hours and another can fill the empty pool in 18 hours. Suppose both pipes are opened at 8:00 A.M. and you have scheduled a swimming activity for 1:00 P.M. that day. Will the pool be filled by then? Yes; after the pipes are opened, the swimming is scheduled to take place in 7.2 hr (7 hr 12 min). It takes 5 hours to fill the pool. Yes; after the pipes are opened, the swimming is scheduled to take place in 5 hours. It takes 7.2 hr (7 hr 12 min) to fill the pool. No; after the pipes are opened, the swimming is scheduled to take place in 7.2 hr (7 hr 12 min) . It takes 7.2 hr (7 hr 12 min) to fill the pool. Yes; after the pipes are opened, the swimming is scheduled to take place in 7.2 hr (7 hr 12 min). It takes 7.2 hr (7 hr 12 min) hours to fill the pool. No; after the pipes are…