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Answers by Koo

Answers by Koo
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What caused early humans to first migrate out if Africa?
answered Jun 13, 2018
4 votes
229k views
If 2x= a+b+c show that (x-a)² + (x-b)² + (x-c)² + x² = a² + b² + c²
answered Oct 19, 2017
6 votes
191k views
A single molecule has at least how many atoms
answered Nov 16, 2015
6 votes
1.1k views
An airplane flies due north at 100 m/s through a 30 m/s cross wind blowing from the east to the west. Determine the resultant velocity of the airplane.
answered Sep 26, 2015
7 votes
118k views
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