An urn contains 13 red marbles and 14 blue marbles. 16 marbles are chosen at random. what is the probability that 6 red marbles
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On the added picture you can see that graphs of functions 
and 
have two points of intersection. The x-coordinates of these points are the solutions of the equation
.
Hence, the approximate solutions are x=-1.9 and x=1.6.
Hence, the approximate solutions are x=-1.9 and x=1.6.