I have a set of data, which I charted and then used the 'add trendline' tool to get a decent 2nd order poly. fit with the equation: y = -3E-39x^2 + 4E-19x + 3.4212 However, when I type this equation ...
Learn step-by-step how to calculate ROI using Excel to assess investment profitability accurately. Perfect for investors and ...
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