Final answer:
One possible positive value of x is approximately 0.0216.
Step-by-step explanation:
The quadratic equation x² + 0.0211x - 0.0211 = 0 can be rearranged to solve for x. By using the quadratic formula, we can find the two possible values of x. Solving the equation results in a negative value and a positive value. The positive value is the answer we are looking for.
Therefore, one possible positive value of x is approximately 0.0216.