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Covering pre-algebra through algebra 3 with a variety of introductory and advanced lessons.


Learn basic geometric shapes, properties, formulas, and problem solving techniques.


Look here for more advanced topics starting with pre-cal and extending through multivariable calculus.


Sines and cosine, angles and formulae.


Here's where we cover basics, like the mean & and median, along with links to more advanced statistics topics.


Solve your own math problems with our selection of free online calculator tools.

Recently Asked Math Questions

How many combinations of sets of 6? Wednesday January 16, 2019
Using the numbers listed, how many sets of 6 numbers can be derived from these? I tried to find an online combination calculator, but didn't find one for this. 2, 3, 6, 16, 20, 22, 28, 31, 35, 37,

Choose 24 of 78,000 prime numbers Wednesday January 16, 2019
I have 78,000 prime numbers that in each estraction each one can assume a value from 0 to number: example number 101 can assume 0 to 100. my goal is to choose 24 of this 78,000 prime numbers and

Function Wednesday January 16, 2019
When the Modern History of Math define function, it only deal on quadratic equation and linear equation. The other equation are have a little notice. You, can investigate a function and know how it

Probably very easy question Wednesday January 16, 2019
So I haven't taken a math class in 10 years and I'm having some issues getting back into it. I'm hiring a private tutor, but in the mean time can someone help me with the below problem? I feel like

Proving that lim(x,y)->(0,0) (x^2 + x|y|)/sqrt(x^2 + y^2) = 0 Wednesday January 16, 2019
Hi, I'm stuck with calculating the following limit (or rather proving it, since I already know the result): [tex] \lim_{(x,y) \to (0,0)}\frac{x^{2}+x|y|}{\sqrt{x^{2}+y^{2}}}=0 [/tex] I have no idea