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Janet YangU.S.
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I can answer questions in Algebra, Basic Math, Calculus, Differential Equations, Geometry, Number Theory, and Word Problems. I would not feel comfortable answering questions in Probability and Statistics or Topology because I have not studied these in depth.  
Scott A WilsonU.S.
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I can answer any question in general math, arithetic, discret math, algebra, box problems, geometry, filling a tank with water, trigonometry, precalculus, linear algebra, complex mathematics, probability, statistics, and most of anything else that relates to math. I can also say that I broke 5 minutes for a mile, which is over 12 mph, but is that relevant?  
Sombra ShadowU.S.
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I can answer most questions up through Calculus and some in Number Theory and Abstract Algebra.  
SocratesAvailable

I can answer any questions from the standard four semester Calulus sequence. Derivatives, partial derivatives, chain rule, single and multiple integrals, change of variable, sequences and series, vector integration (Green`s Theorem, Stokes, and Gauss) and applications. PreCalculus, Linear Algebra and Finite Math questions are also welcome.  
Ahmed SalamiNigeria
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I can provide good answers to questions dealing in almost all of mathematics especially from A`Level downwards. I can as well help a good deal in Physics with most emphasis directed towards mechanics.  
randy pattonU.S.
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college mathematics, applied math, advanced calculus, complex analysis, linear and abstract algebra, probability theory, signal processing, undergraduate physics, physical oceanography  
Clyde OliverU.S.
Available

I can answer all questions up to, and including, graduate level mathematics. I am more likely to prefer questions beyond the level of calculus. I can answer any questions, from basic elementary number theory like how to prove the first three digits of powers of 2 repeat (they do, with period 100, starting at 8), all the way to advanced mathematics like proving Egorov's theorem or finding phase transitions in random networks. 
5.5 in × 1 wire/(0.02 in) = 275 wires The first layer is comprised of 275 windings. 275 windings × 1 sec/(25 windings) = 11 sec It takes 11 seconds to wind the first layer. circumference of spool
The vehicle travels 6 ft with every revolution of the wheels. Let t be the seconds it takes for a wheel to make 1 revolution. Convert 1 revolution/(t seconds) to miles per hour: https://www.flickr
The higher degree a person gets, the better they are able to understand more complicated analysis. I have a Master's Degree in Mathematics, so I offer assistance in Algebra, Geometry, Trigonometry, Calculus
"The distance at which an object falls varies as the square of the time of falling." That means the equation relating distance and time has the form d = kt˛ where d and t are the distance
(1) It is known that tanx = 1/ctnx and tanx = sinx/cosx, which makes ctnx = cosx/sinx. That makes the fraction (1+tanx)/(1+cotx) be (1 + sinx/cosx)/(1 + cosx/sinx). If we multiply by (sinx*cosx)/(sinx*cosx)
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