Q. Solve for r.r=91Write your answer as a fraction.r=_____
Identify Equation and Operation: Identify the equation and the operation needed to isolate r. To remove the square root, we need to square both sides of the equation.r=91(r)2=(91)2
Perform Squaring Operation: Perform the squaring operation on both sides of the equation to solve for r.(r)2=r(91)2=811So, r=811