This road sign gives rules on using the middle-lane of northbound 7th Avenue in Phoenix, Arizona.

The road sign says...

+--------------------------+ | 6-9am Do Not Use | | Mon-Fri | | 4-6pm Thru Traffic | | Mon-Fri | | Other Times 2 Way Left | +--------------------------+ the numbers are: 6 9 4 6 2 the math is: sqrt(9) x sqrt(4) x 2 - 6 = 6 observe... sqrt(9) = 3 sqrt(4) = 2 3 x 2 = 6 6 x 2 = 12 12 - 6 = 6 more math: sqrt((4 + 2) x 6) = (9 - 6)! observe... 4 + 2 = 6 6 x 6 = 36 sqrt(36) = 6 9 - 6 = 3 3! = factorial(3) = 3 x 2 x1 = 6

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

**Created:** 20 July 2006

This work is licensed under a Creative Commons License.