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Mathematics 20 Online
OpenStudy (anonymous):

Triangular numbers can be represented with equilateral triangles formed by dots. The first five triangular numbers are 1, 3, 6, 10, and 15. Is there a direct variation between a triangular number and its position in the sequence? Explain your reasoning.

OpenStudy (anonymous):

wELCOME TO OS, 0!!!!!!!!!!!!!!!!!!

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