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Abe Mantell

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Hello, I am a college professor of mathematics and regularly teach all levels from elementary mathematics through differential equations, and would be happy to assist anyone with such questions!

Lynn Houston

U.S.
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I can answer questions in basic algebra and any grade school math.

Recent Answers

2017-01-30 The number pi:

Hello Tom,    These days, with the Internet, it is easy to get many digits of pi with great reliability.  For example:  http://www.factmonster.com/ipka/A0876705.html  http://www.geom.uiuc.edu/~huberty/math5337/groupe/digits

2017-01-16 mental math:

Good question!    Here are some places to read about it...  https://www.quora.com/How-did-Shakuntala-Devi-perform-such-huge-calculations-with-great-speed-and-precision  https://www.quora.com/How-did-Shakuntala-Devi-mentally-calculate-the-23rd-root-of-a-201-digit-number-correctly

2017-01-07 Determing actual age from apparent age of characters:

Hello Julian,    Without additional info there are literally infinitely many possibilities!  The relationship could be (1) linear, (2) quadratic, (3) cubic, (4) exponential, (5) logarithmic,  (6) power

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