I am not familiar with those puzzles and I would like to find out do I miss some rules which are necessary for solving those puzzles? Here is an example -...

We have seen that it was possible to use the sum of two squares to factor numbers (see Can the sum of two squares be used to factor large numbers? ) The m...

Background: This is for an app I'm trying to build around finding the center point between 3 or more people. Between 2 people is pretty simple but wa...

Refer the diagram below : What should be the angle alpha such that the variable x is between 7mm and 7.3mm.

I have been given the following relations to find the domain and range of using builder notation. (The blue writing is what I have so far) I am just begin...

Sorry if this is a really simple question, but I was looking for an equation to produce a non-symmetrical parabola. (The left side of the parabola would h...

If we roll two dice, what are the odds that we roll one five OR the sum of the rolled dice equals an odd number? The odds of rolling one five from two dic...

I have to do some homework questions that require me to draw graphs on a torus. My drawing skills suck, so I wondered if there is a program which allows y...

Let $p$ be an odd prime such that $$p \equiv 1 \pmod{4}$$ and $p$ and $p-2$ form a twin prime pair. My question: Is it true that $2^{p}-1$ is a prime number?

So I am trying to understand this formula. I get that 7 squared is 7 * 7 = 49; However the () scares me, I get that there are rules for what to do first b...