A one-page letter is folded into thirds to go into an envelope. If it were possible to
Chapter 4, Problem 4.1.53(choose chapter or problem)
A one-page letter is folded into thirds to go into an envelope. If it were possible to repeat this kind of tri-fold 20 times, how many miles thick would the letter be? (A stack of 150 pieces of stationery is one inch thick; 1 mile = 5280 feet.) 5455 concern ISO A-series paper, commonly used in many countries. A0 is the largest sheet, A1 next largest, and so on, with A4 being somewhat similar to the 8.5 by 11 inch paper standard in the US. The width in millimeters (mm) of a sheet of An paper in this series is given by the formula8 f(n) = 1000 2 1 4 n 2 .
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