Sam

~2nd post of question because I didn't have much luck in Mathematics.

So I'm having some trouble understanding sigma notation.

If:

5

Σ (2n)

n=0

would 'a sub 1' equal to 0 or to 2?

My confusion here is if 'a sub 1' means the first number (this being 0 because it starts with 0) or does it mean you substitute the number 1 (as n)?

Note: when I say 'a sub 1' I mean

a

,,1

~ the commas are there so the 1 stays at the correct distance.

So I'm having some trouble understanding sigma notation.

If:

5

Σ (2n)

n=0

would 'a sub 1' equal to 0 or to 2?

My confusion here is if 'a sub 1' means the first number (this being 0 because it starts with 0) or does it mean you substitute the number 1 (as n)?

Note: when I say 'a sub 1' I mean

a

,,1

~ the commas are there so the 1 stays at the correct distance.

So for homework, I have some problems and I don't really get how to solve them. One example of these is:

Find the fraction equivalent to 0.40404040 ...

How do you solve a problem like that?

Is there a way to get the water marks out of UGGs without the spray because I don't live in near a place where they sell it.

Well, I'm describing the opening scene of a play in French and am wondering whether I should use imparfait or passé composé because I'm describing what happened though in doing so I'm stating actions...

Like: Le spectacle a commencé quand les lumieres s'éteignaient. Des singes courraient sur la pièce et ils grimpaient les murs sous la tête d'un dragon qui rugissait.

Or that in passé-composé?

Okay, so I've been looking it up and it seems that people say to use lui and leur when the verb is followed by an à as in:

dire à

penser à

Also, people say that lui and leur are complements objets indirects which I sorta get what a COI is but can't make sense of it in exercises.

Can someone please explain why it would be:

"Je ne supporte pas vos enfants!"

Il leur a avoué qu'il ne supportait pas leurs enfants.

Or "Est-ce que tu m'en veux encore?"

Fabrice lui a demandé si elle lui en voulait.

~Like, do you say 'je veux à' or 'je supporte à' because I didn't necessarily think so?

One eats cake.

One drinks water.

One ______ ice cream.

What does one 'do' to ice cream?

Well, for math one of the things we have to know is how to know how many changes of direction the polynomial takes. I know that a polynomial has at most '' It's degree minus 1 '' but if the degree of the polynomial is 3, how do you know if it's 2, 1, or 0 changes in direction?

Thanks!!

Well, today I got out of a chair and for some reason it struck me that lots of people (including me) we getting out of their chairs to the right. For me, my right hand is my dominant hand, the hand I use more, and I wondered if it was just a coincidence or is it that people subconciously get out of their chairs in the direction of their dominant hand.

Which way do you get out of a chair and what's your dominant hand?

Thanks!!

It could be a product, technology, or something medical

Thanks!!

I need to write an essay on this, but haven't gotten that far. In the play, what characters abuse their power and how? Or, in what situations is the abuse of power seen?

Well, my exams start in a bit less then two weeks and I'm going to start studying tomorrow. Personally, I usually like to study by re-copying notes and/or making guides on the material which cover basically everything but not as in depth (for details, I generally refer back to my notes). As these are exams it takes more time for me to study than it does for tests (as it is six giant tests), and I'm debating over whether to study by writing by hand or on the computer.

Dealing with advantages, I find that for me the computer is much faster, notes can be more easily organized, you can shift things around afterwards, and it may be more legible. Meanwhile, by hand I have heard that the material you actually physically write 'soaks' into you more than if you are typing it.

Essentially, should I do the faster and more organized way; or the way which may soak in better?

Well, let's say that I want to buy a movie on iTunes and on languages it says: English and Spanish. If I do buy the movie, well, how does it work? Will it be in both languages and you just choose what language when watching, or do you choose the language after you buy it?

It takes about 8 minutes and 20 seconds for light from the sun to reach the earth.

So, if there was to be a supernova with our sun (even though it still has like 4.5 billion years left according to calculations) would the force and energy of the supernova hit us before we see the sun explode. Or would we see it, wait a bit, and then like blow up?

I'm doing a project where I have to compare two people/characters: one from the novel the Lord of of the Flies and the other from the French Revolution and I've chosen Jack and Robespierre.

Do Jack and Robespierre share any similar characteristics, traits, courses through time?

I have a sheet where I have to fill in the meanings of older English words and one of them it i'th'. I was wondering if anyone knows what i'th' means because I couldn't really find anything.

Thank you.