100 POINTS The vertices of a rectangle are (3, 7), (6, 7), (6, 1), and (3, 1). Find the perimeter of the rectangle.
1 answer:
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We want to choose 4 people and we have 6 people to choose from. This is a combination of 6, 4 by 4. Also called <em>six choose four</em>.
The following formula:
Is the combination of objects choosen from a total of
. It's
choose
.
For our problem, we just need to compute the following:
Thus
Therefore the answer is 15 different combinations