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Basic Math/Expert Profile

Abe Mantell

On Vacation
returns 12/25/2016
Expertise

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!

Experience in the area

Over 15 years teaching at the college level.

Education/Credentials

B.S. in Mathematics from Rensselaer Polytechnic Institute
M.S. (and A.B.D.) in Applied Mathematics from SUNY @ Stony Brook

Average Ratings

Recent Reviews from Users

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    K = Knowledgeability    C = Clarity of Response    P = Politeness
UserDateKCPComments
Debbie06/01/16101010 
Gabe04/12/16101010Thank you! Very detailed, much appreciated.
Jeffrey04/06/16101010Great example, even the knuckleheads I work .....
Russ Bryan04/05/16101010Very pleased with response time. On a .....
John01/19/16101010 

Recent Answers from Abe Mantell

2016-06-06 help:

Hello Aishwarya,    These websites should help:  http://www.whoinvented.org/who-invented-numbers/  https://en.wikipedia.org/wiki/Number  http://www.whoinventedit.net/who-invented-numbers.html  http://mathforum

2016-05-23 How to combine two percentage (which may have overlap):

Hello Ahmad,    In this case we can use the well-known formula in probability: P(A or B) = P(A) + P(B) - P(A and B)    However, we only know P(A)=0.5 and P(B)=0.6, we need one more piece of info...either

2016-04-11 pattern:

Hello,    Problems like these are questionable without some kind of idea or theme.  The reason is that there are infinitely many "correct" answers (usually  only one "simplest" answer though).    I'll

2016-04-10 help:

Hello Aishwarya,    I am guessing your teacher means by "parallel" that they have the same priority  when performing the operations.  However, that is not true.  There is an abbreviation  we use, I hope

2016-04-06 Area of an ellipse/oval:

Hello Jeffrey,    Your instinct is correct.  Given a length of string tied at both ends, a loop, a perfect  circle maximizes the area formed.    You can see this with your example.  Take your water tubing

 

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