Study the speed time graph and answer the questions given below: The graph shows the speed of the cars on a roller coaster once the brakes are applied.
SA
a) What is the initial speed?
ANNY
20
18
16
14
12
Speed (m/s)
b) Find the steepness of the graph.
0 1 2 3 4 5 6 7
Time (s)
c) Interpret the slope.
d) Write an equation for this trip in the form y = mx + b

Afriend of mine is giving a dinner party. his current wine supply includes 10 bottles of zinfandel, 8 of merlot, and 11 of cabernet (he only drinks red wine), all from different wineries. (a) if he wants to serve 3 bottles of zinfandel and serving order is important, how many ways are there to do this? ways (b) if 6 bottles of wine are to be randomly selected from the 29 for serving, how many ways are there to do this? ways (c) if 6 bottles are randomly selected, how many ways are there to obtain two bottles of each variety? ways (d) if 6 bottles are randomly selected, what is the probability that this results in two bottles of each variety being chosen? (round your answer to three decimal places.) (e) if 6 bottles are randomly selected, what is the probability that all of them are the same variety? (round your answer to three decimal places.)