Encyclopedia > September 23

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September 23

September 23 is the 266th day of the year (267th in leap years). There are 99 days remaining.

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September 22 · September 24 · August 23 · October 23 · more historical anniversaries

See Also: January, February, March, April, May, June, July, August, September, October, November, December - more historical anniversaries



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Quadratic formula

... term b2 – 4ac is called the discriminant of the quadratic equation, because it discriminates between three qualitatively different cases: If the ...

 
 
 
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