Idaho Society of Professional Engineers

           PO Box 170239, Boise, ID 83717-0239  208-426-0636  Fax: 208-426-0639  E-Mail: ispe@idahospe.org

                               Hall of Fame 

Idaho Society of Professional Engineers
Friday Update – 03/30/07

UPCOMING EVENTS:

• April 23 & 24, 2007 – 2007 Western and Pacific Regional Conference – Las Vegas, Nevada
 

• May 11, 2007 – National MATHCOUNTS Competition – Convention Center, Fort Worth, Texas

• May 11, 2007 – ISPE Southwest Chapter Spring Fundraiser Golf Tournament - 4-Person Scramble - 1:00 PM - Purple Sage Golf Course

ISPE HOLDS SUCCESSFUL 2007 ANNUAL MEETING……
The ISPE 2007 Annual Meeting was held March 22 and 23 in Boise. Highlights of the meeting included attendance by NSPE President Robert Miller and a panel discussion with the members of the Idaho Board of Professional Engineers and Professional Land Surveyors. Sessions were held on Green Buildings, DEQ’s Qualified Licensed Professional Engineer Policy, and New Drinking Water and Wastewater State Standards. Seminar series speaker Michael Ingardia, PE presented two sessions; “The Stealth Project Profit Killer: How to Get Scope Creep Back on Your Radar Screen” and “Design & Delivery in an Electronic World: What Role Does Information Technology Play?”

Our thanks to ACEC of Idaho for sponsoring the morning session and helping ISPE bring this nationally known speaker to Boise!

During the Friday evening banquet, which was attended by over 100 people, the following awards were presented:

Idaho Engineering Hall of Fame – Wendell A. Higgins, PE/LS
Idaho Engineering Hall of Fame – Sumner M. Johnson, PE/LS
Idaho Engineering Hall of Fame – Walter H. Smith, PE

Idaho Excellence in Engineering – Roger R. Bissell, PE
Idaho Excellence in Engineering – Les Walker, PE

Idaho Excellence in Engineering Educator – Dr. Richard T. Jacobsen, PE

Young Engineer of the Year – Chris Canfield, PE

Engineering Excellence Award – presented by ACEC of Idaho

Please join ISPE in congratulating all of this year's award winners!
 

A great performance by Funny Bone comedian Pat Mac wrapped up the evening and sent everyone home laughing.

Our thanks to everyone that helped make the 2007 meeting a success. See you next year!

2007 PROJECT DEVELOPMENT CONFERENCE
Boise Centre on the Grove – April 4 and 5, 2007


MATHCOUNTS PROBLEM OF THE WEEK
Can you solve this MATHCOUNTS problem? The answer will appear in next week's edition of the Friday Update!

Area Codes
Telephone numbers in North America have 10 digits.  The North American Numbering Plan calls for a three-digit area code, followed by a three-digit prefix and a four-digit line number.

Since 1995, telephone numbers in North America have been of the format NXX-NXX-XXXX. Each N represents a digit from 2 through 9, and each X represents any digit from 0 through 9.

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How many ten-digit phone numbers are possible in the North American Numbering Plan?  Express your answer in scientific notation.

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As of March, 2007 there are 283 area codes in use for the 50 US states and the population of the United States is approximately 300,000,000 people.  How many different phone numbers are possible?  Are there enough phone numbers available so that each citizen of the United States can have their own phone number?

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The table below shows the 2005 estimate for the population of 6 states and the number of area codes assigned to those states.  Let n denote the rate of population in people to the number of area codes.   For which state is the value of n the greatest?

Answer to last week’s MATHCOUNTS problem:

3 1/8 = 3.125, 4(8/9)² = 3.160, and 3.160 – 3.125 = 0.035

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(3.069 + 3.191 + 3.222 + 3.182 + 3.129) ÷ 5 = 3.1586.  The mean of the circumference to diameter ratios is 3.159 to the nearest thousandth.

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The perimeter of the inscribed hexagon is 6 times the length of one side of an equilateral triangle whose side length is 1: 6 × 1 = 6 = 2x, so x = 3.  The perimeter of the circumscribed hexagon is 6 times the side length of an equilateral triangle whose height is 1.  An equilateral triangle whose height is 1 is part of a 30-60-90 right triangle whose sides are in the ratio of a : 2a : a√(3).  The height of the equilateral triangle is a√(3) = 1, so a = √(3)/3 and 2a = 2√(3)/3.  The perimeter of the circumscribed hexagon is 6 × (2√(3)/3) = 6.928 = 2y, so y = 3.464.  The mean of x and y is (3 + 3.464)/2 = 3.23.

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(3.23 – 3.14) / 3.14 = .0287. The hexagon method overestimates the approximation of 3.14 for π by 2.9%.

If you want to see last week's problem again, click http://www.mathcounts.org/webarticles/anmviewer.asp?a=989&z=110

Idaho Society of Professional Engineers
PO Box 170239
Boise, ID 83717-0239
208-426-0636
Fax: 208-426-0639
E-Mail: ispe@idahospe.org
Web Site: www.Idahospe.org

ISPE MATHCOUNTS Program

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