Posts by Catherine
Total # Posts: 421
Math IB SL
How many people will be needed to count 47.8 million households if they work an average of 3.7 hours per day, 5 days a week for 10 weeks and they count 1.18 households per hour?
December 16, 2008
Describe other measurements sociologists use to ca
Describe other measurements sociologists use to calculate prejudice
September 26, 2008
12x+4y= 22 and 3x-8y= -10 What are the coordinates of x and y? Use the Substitution Method. ---and--- -5x+7y= -41 and 7x+y=25 What are the coordinates of x and y? Use the Substitution Method. Please help!!! =DDD
January 25, 2008
If one body is positively charged and another is negatively charged what will free electrons do? Generally it flows providing they are touching (or close enough to jump) and are conductors. Please read: http://www.kpsec.freeuk.com/electron.htm
June 7, 2007
How many grams of sodium acetate( molar mass 82.03 g/mol) must me added to 1.00L of a 0.200M acetic acid solution to form a buffer of 4.20?Ka value for aceic acid is 1.8 x 10^-5. How do I go about finding the grams from the given information? http://www.chembuddy.com/?left=pH-...
June 2, 2007
A man standing 20 m from a tower estimates the angle of elavation of the top and bottom of a flagpole on the tower as 58 degrees and 55 degrees. Calculate the height of the flagpole. How would I go about finding the height of the flagpole? Calculate the height of the bottom: ...
June 2, 2007
In American history, who died on July 4, 1876? According to this site, no noted person died on this date. http://www.brainyhistory.com/daysdeath/death_july_4.html http://www.bklyn-genealogy-info.com/Newspaper/BSU/1876.July4.Acc.html
April 10, 2007
Reggio Emilia Schools Question
Dan is working on a project. He wants to build a tunnel for his cars. Dan cannot get the paper tubes to fit together and stay. In the Reggio Emilia school, his teacher will probably: 1.Ask Dan to explain his reasoning for selecting paper tubes to use for this progect. 2.Make ...
January 1, 2007
With rational numbers how do you you subtract the negatives? You see a wallet for $5.97. If you wish to have 3 initials engraved on it for 25 cents each, how muchwill the wallet cost? You see a wallet for $5.97. If you wish to have 3 initials engraved on it for 25 cents each, ...
November 13, 2006