These street signs are on N. 23rd Ave. in Phoenix, Arizona.

The street signs say...

+-----------------------+ | WARNING: Speed Humps | | 20 M.P.H. | | Next 1/2 Mile | | No Parking | | 7-9 A.M. | | 4-6 P.M. | | Monday Thru Friday | | city of Phoenix | +-----------------------+the numbers are: 20 1/2 7 9 4 6 the math is: (sqrt(sqrt(7 + 9)) + sqrt(4) + 6) / (1/2) = 20 more math: ((4! / 6)! - 20) * (1/2)) + 7 = 9 log(n) math: log(20 * (1/2)) + log(6 + 4) + 7 = 9 rs42Eval: 20 / (1/2) + sqrt(9 - 7 + 6 - 4) = 42 * 42 is the "Answer to Life, the Universe, and Everything" rsPiEval: (20 + 4^(1/2)) / (sqrt(9)! - 6 + 7) = Pi * 22/7 approximates Pi (3.14) rounded to nearest hundredth rsPhiEval: (1/2) + (sqrt(20 / 4) / (9 - 7! / 6!)) = Phi * Phi is the golden ratio and it approximates 1.61803399 average math: sqrt(20 / (1/2) + 4 * 6) = avg(7, 9) more average math: avg(7, 9) * avg(4, 6) = 20 / (1/2)

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 13 October 2008

This work is licensed under a Creative Commons Attribution 3.0 United States License.