5. In a room with 10 people, everyone shakes hands with everybody else exactly once. How many handshakes are there?

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
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5. In a room with 10 people, everyone shakes hands with everybody else exactly once. How many handshakes
are there?
Transcribed Image Text:5. In a room with 10 people, everyone shakes hands with everybody else exactly once. How many handshakes are there?
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