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Expert Profile: Abe Mantell

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.

Organizations
NCTM, NYSMATYC, AMATYC, MAA, NYSUT, AFT.

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

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Average Ratings
Prestige Points: 14780
Knowledge   9.98   Best of the best
Clarity of Response   9.84   Best of the best
Timeliness   9.73   Best of the best
Politeness   9.97   Best of the best
Number Of Questions
(in Past 24 Hours)
0
Max Questions to be Asked
(in 24 Hour period)
1
Total Questions
(since joining AllExperts)
258
Recent Reviews from Users
KnowlClarityTimePolitenessDate
1010101007/21/08
1010101007/17/08
10101007/22/08
1010101007/14/08
101007/15/08
User Comments
thanx...
(s on 07/21/08)
WOW! Thanks so much that was quick. You Rock! Sometime it's not easy going back to school when your older, but it can be fun.:)
(Norma Williams on 07/17/08)
he was a great help and it didnt even take long to get answered back
(francheska on 07/14/08)
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Recent Answers from Abe Mantell
2008-09-02  Math Problem help Hello Toneicia, I am a bit confused by the first fraction, 31/24, since it is greater than one! So, either it is incorrect, or it does not truly represent the fraction of accidents (otherwise it...
2008-09-01  Word Problems for the Unknown Hello Amy, Let x=the value of the car in very nice condition. Since 1 3/4 = 7/4, we get: (7/4)x=$62,125...now solve for x by dividing by 7/4, which is equivalent to multiplying by 4/7 (the recipricol...
2008-08-31  word problem Hello Shary, There are 7x7 backpacks = 49 backpacks...there are 49x7 cats = 343 cats ...there are 343x4 cat legs = 1372 cat legs...there are 7x2 girls legs = 14 more legs, for a total of 1372+14=1386...
2008-07-23  find the ratio of speed Hello Steve, If I correctly interpret....you are saying that in the time it took the soldiers to travel their own length, the officer walked from the end to the front and back to the end...yes?...
2008-07-22  Half life Hello Olivia, Let A(t)=the amount of Polonium-210 remaining after t days. Then A(t)=Ao*e^(kt)...since the 1/2-life is 138.4 days, we get 1/2=1*e^(k*138.4)==>138.4k=ln(1/2) ==> k=ln(1/2)/138.4 which...
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