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OpenStudy (anonymous):
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OpenStudy (anonymous):
OpenStudy (mathstudent55):
a. x y rule 3 3 2 + 1 x(x - 1)/2 4 6 3 + 2 + 1 x(x - 1)/2 5 10 4 + 3 + 2 + 1 x(x - 1)/2 6 15 5 + 4 + 3 + 2 + 1 x(x - 1)/2 y = x(x - 1)/2 b. Let x = 70, solve for y c. Let y = 45, solve for x
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