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| rev | Admin | (Created page with "'''Solution: B ''' <math display = "block"> \begin{aligned} & 10,000+10,815 v^2=20,800 v \\ & v=\frac{20,800 \pm \sqrt{20,800^2-4(10,815)(10,000)}}{21,630} \\ & v=0.970873 \text { or } 0.952381 \\ & i=0.03 \text { or } 0.05 \\ & |0.03-0.05|=0.02\end{aligned} </math> {{soacopyright | 2023 }}") | Nov 17'23 at 23:10 | +295 |