Let's make a homework help thread!

There has to be more information than that. Number of sides of the polygon, or something?

Both are equilateral triangles.

Ahh, okay.

Imagine splitting an equilateral triangle down the middle. You now have two similar right triangles. The hypotenuse is just your radius, and the line where you made the split is the apothem. Now, remember that the third side is just going to be half the length of the hypotenuse, and regardless of whether you're given the radius or the apothem to start with, it's going to come out to only one unknown when you apply the pythagorean theorem. From there, you should have the base (radius) and the height (apothem).

Alright, thanks. I think I figured it out now.

Uh, I have a syntax problem.

Wh-phrases raise to CP so that they can check WH in C. However only one wh-phrase can go in each CP.

In Bosnian/Serbian/Croatian, however, "who what where buys" a grammatical way to say "who buys what where", but other arrangements of these four words are not. What is a way around this problem?

I can't find the solubility of tar or arsenic in water at room temperature. Are there any good information sites on either of them?

Can anyone help me with this?

F1 represents the first number in a Fibonnaci sequence.

Fn represents n in a Fibonnaci sequence.

Prove that F2+F4+F6+...+F2n= F(2n+1)-1

Please? I'm completely stumped. Thanks.

Proof by induction is the natural choice for such things. Give that a shot.

edited 5th May '12 11:18:05 PM by Ironeye

I've been trying that, but I'll give it another shot. Thanks.

Do remember the rule for generating new terms in the sequence. What is F(n) + F(n+1)?

F(n+2).

That fact plus induction will be enough.

Hi first time at Yack Fest what the ^&*( is going on?!!

Alright, how do I partially differentiate something like this?

M = 1 + e^(x/y) in terms of y.

Thanks for any help.

Taking partial derivatives is just assuming the other variables are constants and then taking the normal derivative, iirc. I haven't taken calculus III though, so that's just hearsay from my math major friends.

That is so. Therefore M and 1 are constants and differentiate to zero, and you have to use the product rule on e^(x/y).

Right, thanks. So how do I know which part is u and which is v?

EDIT: ah, just needed to dust off some older info I had. Basically leave e^(x/y) as it is while differentiating (x/y) with respect to y and multiply it with e^(x/y). Got it.

edited 20th May '12 6:23:03 AM by Exploder

OK, this is going to make me sound incredibly dumb, but, whatever, gotta ask somewhere.

I'm a college freshman, working on pretty much my first large project/report. And, there's a problem, teacher's going to invalidate the whole thing if I don't cite my sources properly.

Yes, it's dumb, but I don't really know how to compose a proper bibliography. Any tips? Guidelines, anything? *hides from the incoming laughter because of my ignorance*

Was there a particular citation method you were supposed to use?

As in: MLA, APA, Chicago, etc.?

Nope. He told us to (and I quote) "Figure it out ourselves". I'm guessing he wants us to get used to looking up stuff he didn't ask us for? I don't know.

What class is it for?

Also, did he ask you to cite your sources with in line citations, or just a bibliography?

edited 24th May '12 8:50:43 AM by zzzdragon

Spanish. Well, technically, it's "Mother Language", but in essence it's Spanish.

With citations, yes. Again, didn't explain how, exactly, he just said I had to. Then again, I was more worried of getting my group together, so I might have missed a few details.

edited 24th May '12 8:53:05 AM by ThatOneGuyNamedX

What language is the paper written in? I don't know if Spanish has it's own way of citing things.

Otherwise I would say MLA (Modern Language Association) style is probably best, since it's humanities (certain academic subjects have their own style). Try googling MLA citation style to find a resource, and read up on it.

Just make sure you write down the title, author, copyright, publisher, publisher location, and the medium (usually print for books, but if it's from a video or something it would be 'video') of every source you use.

Let us know if you have problems, and if it gets to a "1 hour until due and I have no clue how to do this time."

It's in Spanish.

I will, thank you, and thanks for the advice ^_^

Thanks a lot, I'll be sure to check if I need anything else. Thanks for helping out a n00b :P

We've all been noobs at some point or another, and often still are, depending on the subject matter. That's why this thread exists.