Just about anything. Math can describe things, but it's not the only way to describe things.
A reaction that can be described using a word
If you are using the tangent function to find the angle, the only time it will give a math error is if the angle is ±90 degrees. Otherwise the answer will depend on how you are going about it and since you have not described your method it is impossible to answer the question.
IT is science that can be described in mathematical terms.
a student's ability to reason using math
Volley ball relates to math in all of the different forces that are happening. A volleyball player mentally gauges the force that the ball is approaches with and the appropriate force to respond with. Force is equal to the product of mass and acceleration. There is also projectile motion in volleyball, which is commonly described using math.
No.
a mathematical problem described in words in stead
Using Math and words.
Math symbols
510 divide by 52 using mental math and using long div = 9.807692307692308
it can be described using some tales of panchtantra
the advantages and disadvantages of using a cell phone to teach math is that it may not teach the the right way to do the math.