Aregular polygon is drawn in a circle so that each vertex is on the circle and is connected to the center by a radius. each of
the central angles has a measure of 40°. how many sides does the polygon have?
8
10
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33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

We just started the introduction into circles and i have no idea how to do this.