A 13.0 foot long, nearsighted python is stretched out perpendicular to a plane mirror, admiring its reflected image. If the greatest distance to which the snake can see clearly is 29.0 ft, how close must its head be to the mirror for it to see a clear image of its tail?
The Attempt at a Solution
I tried the obvious and easiest approach which of course yields an incorrect answer. Seems to me to just take 29-13. Obviously the nearsightedness comes into this problem somewhere, but I don't know how to use that information to obtain an answer.