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\frac{9.2}{80}=\frac{v^{2}}{0.6}
Divide both sides by 80.
\frac{92}{800}=\frac{v^{2}}{0.6}
Expand \frac{9.2}{80} by multiplying both numerator and the denominator by 10.
\frac{23}{200}=\frac{v^{2}}{0.6}
Reduce the fraction \frac{92}{800} to lowest terms by extracting and canceling out 4.
\frac{23}{200}\times 0.6=v^{2}
Multiply both sides by 0.6.
\frac{69}{1000}=v^{2}
Multiply \frac{23}{200} and 0.6 to get \frac{69}{1000}.
v^{2}=\frac{69}{1000}
Swap sides so that all variable terms are on the left hand side.
v=\frac{\sqrt{690}}{100} v=-\frac{\sqrt{690}}{100}
Take the square root of both sides of the equation.
\frac{9.2}{80}=\frac{v^{2}}{0.6}
Divide both sides by 80.
\frac{92}{800}=\frac{v^{2}}{0.6}
Expand \frac{9.2}{80} by multiplying both numerator and the denominator by 10.
\frac{23}{200}=\frac{v^{2}}{0.6}
Reduce the fraction \frac{92}{800} to lowest terms by extracting and canceling out 4.
\frac{23}{200}\times 0.6=v^{2}
Multiply both sides by 0.6.
\frac{69}{1000}=v^{2}
Multiply \frac{23}{200} and 0.6 to get \frac{69}{1000}.
v^{2}=\frac{69}{1000}
Swap sides so that all variable terms are on the left hand side.
v^{2}-\frac{69}{1000}=0
Subtract \frac{69}{1000} from both sides.
v=\frac{0±\sqrt{0^{2}-4\left(-\frac{69}{1000}\right)}}{2}
This equation is in standard form: ax^{2}+bx+c=0. Substitute 1 for a, 0 for b, and -\frac{69}{1000} for c in the quadratic formula, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.
v=\frac{0±\sqrt{-4\left(-\frac{69}{1000}\right)}}{2}
Square 0.
v=\frac{0±\sqrt{\frac{69}{250}}}{2}
Multiply -4 times -\frac{69}{1000}.
v=\frac{0±\frac{\sqrt{690}}{50}}{2}
Take the square root of \frac{69}{250}.
v=\frac{\sqrt{690}}{100}
Now solve the equation v=\frac{0±\frac{\sqrt{690}}{50}}{2} when ± is plus.
v=-\frac{\sqrt{690}}{100}
Now solve the equation v=\frac{0±\frac{\sqrt{690}}{50}}{2} when ± is minus.
v=\frac{\sqrt{690}}{100} v=-\frac{\sqrt{690}}{100}
The equation is now solved.