Mathematics, 05.03.2021 04:20 mprjug6
A garden has five light poles and a party planner wants to connect each light pole directly to each of the other poles with a string of light for an outdoor party.
The expression n(-1)/2 where n represents the number of poles, can be used to determine how many strings are needed. How may strings are needed to connect the five poles?
a) 20 B) 12 C) 15 D) 10
Answers: 2
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