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Sounds like a homework problem re-worded. I'd like to see pictures of the pontoons.

Depends how accurate you want to be and what is the purpose. Usually crude estimates are good enough.
3. ### N /n! = ?

OH! I was thinking (n!)!.
4. ### N /n! = ?

Hence why the student kept arguing.
5. ### N /n! = ?

In differential equations class, they had... x = \frac{dy}{dx} The student cancelled the d's, and then multiplied both sides by x and added "+C". That's y = x^2 + C. Argued his answer was correct and was only missing an insignificant coeficient and should get full marks.
6. ### AP Calculus

Advanced People? Awkward People? Astoundingly Popular?
7. ### Projective Geometry

That seems to make more sense. I'll try that out. Thanks!

We don't?
9. ### Projective Geometry

I'm doing reading course on Projective Geometry. I was presented this question (in the textbook, not homework): In P_2 R, let A, B, and C be points on a line L and let A', B', and C' be points on a line L'. Prove there exists points S_1, S_2 and S_3, and lines l_1 and l_2 such that...
10. ### AP Calculus

Good luck for tomorrow then!
11. ### AP Calculus

I meant for you Calculus exam.
12. ### General Help for Combinatorics and Graph Theory

I took Graph Theory last term. I enjoyed it very much. No textbook though. Mostly his lecture notes and browsing books and internet for assignments. My main issue was all the definitions. So many of them.
13. ### AP Calculus

Stop asking so late. The midnight before... are you serious?
14. ### Puzzling Equation

Can you check and make sure you wrote this down correctly. Also, I assume x1 means x_1. Also, x_1 can be anything I want? Every detail to a question is important. There is no such thing as text talk in mathematics. ;)
15. ### N /n! = ?

I can hardly call it a simplication if it has another double factorial. I would just say it's another way to write it. It's equivalent. The obvious answer to something that is equivalent... (n!!-1)!