Official Homework Help Topic Options

[Oscar]

Ohhh, stage fright. I hate it, but know it so well.

I've yet to overcome it, but just try and not think about. Relax. (IMG:style_emoticons/default/lalasmile.gif)

[Charmy]

But everyone will stare at me, luckily more will be staring at my other friend. She's bright colours, raincoat and shot/long pants. *Wipes forehead* But I'm still afraid I'll do something wrong and stuff the dance up and my friends will get angry at me. ;__; So I've been practising it in my room everyday but it isn't helping my confidence.

[Toaster Boy]

The trick is to take the adrenaline and gradually put it into what you're doing.

[Charmy]

Now if I did that I'd make everyone fall over. :P (IMG:style_emoticons/default/emot-kraken.gif)

[Toaster Boy]

I said GRADUALLY. Put it in small doses.

[Charmy]

Like I can do that, I'm concentrating on my footing. (IMG:style_emoticons/default/lalasad.gif)

[Lenyo]

This topic will be so helpful.


Could someone give me their opinion on a key difference between a Deciduous forest and Coniferous forest?

[Lindstrom]

Coniferous trees make cones and needles, like pine and fir trees.
Deciduous trees make leaves and either a fruit or a nut of some kind, like oak, maple, and apple trees.

I totally forgot about this thread.

[Tolby]

Wow, that brings me back. For some really strange reason.

[Lenyo]

Thanks Lind. It's too bad the science test was today. Lawl

So, I've been having a lot of trouble fully understanding the Stem Leaf plot thingy in Algebra 1. Anyone?

[Rui L'cie]

Can someone help with programming questions?

[Saffy]

Can someone help with programming questions?

Yes, I can :) Just depends on what language. I don't know any Java.

[Peter]

Thanks Lind. It's too bad the science test was today. Lawl

So, I've been having a lot of trouble fully understanding the Stem Leaf plot thingy in Algebra 1. Anyone?

Stem and leaf plots are rather annoying. It depends on the kinds of numbers you're working with, but I'll see if I can explain it properly.

Let's say that there was a test given out and here are the scores:

Lindy: 100
Lenyo: 97
Peter: 93
Charmy: 81
Jitterbug: 75
Happylu: 70
Be Happy: 68
Tolby: 64
Darth: 57
...
Jason: 12
Myste: 6

I was running out of usernames. Lol. Anyways, you get the idea. So you've got all those numbers, and whathaveyou, and some mathemetician guy was like omg wouldn't it be great if we broke this down into a real simple way of listing these scores anonymously without taking up so much space?! So he invented the stem and leaf chart. The concept behind it is the stem is a certain digit (in this instance, we'll say the tens place) and the leaves are labeled a digit (again, in this instance, it's the ones place).

NOTE: In case you've forgotten, the ones place is the digit furthest to the right before the decimal. Ex: 123,456,789.12 From there, moving left is the tens, hundreds, thousands, and so on. From there to the right is the tenths, hundreths, thousanths, and so on.

Okay, so we have the idea of it, but how the heck is this set up? I'll show you:

(IMG:http://i119.photobucket.com/albums/o142/pjthomas87/math.jpg)

As you can see, the scores are all listed, but in this funky format. What you are viewing is like this simplified first grade version of "can you identify the tens and ones place?" (please excuse my poor alignment, I fail in MS Paint.) Anyways, the tens are written in the first column in this example. Lindy, who got a perfect score got 100, which is ten tens. So if you're wondering why that's written like that, there you go.

A few people do it differently for Myste, who scored only a 6. Should have studied harder, it seems, Myste. See, some of my math teachers said to add the zero in the tens place just so you don't lose track, others say they'll take points off if you add that. So you should check with your teacher/professor and find out how they want it done.

So any numbers that have 9 tens (you and myself) have their ones written to the right, in the ones column. This continues until all the numbers have been filed into their respective category. This is also how they are read too. So if you look up there at the image, you see that 7|5 0 is 75 and 70 in that order. Most professors go in descending order, and if there is ever a repeated number, write every one of them. So if we both scored 75, then it would be written as 7 on the tens side and two 5's written on the ones side.

I hope that helps, Lenyo. If you have further questions, please ask away. I'll try and explain a little more thoroughly.

[Toaster Boy]

Geometry question: Ray RT bisects angle QRS. If the measure of the angle of QRS = 10x and the measure of the angle of SRT = 3x + 30, what is the measure of the angle QRS?

[Saffy]

If I recall bisect means it's cut equally in half. Thus I believe it's simply a matter of saying QRS = 2*SRT, solving for x, and then figuring out the angle of QRS.

Spoiler:

10x = 2(3x + 30)
10x = 6x + 60
4x = 60
x = 15

QRS = 10*15
QRS = 150

And for the sake of checking...

SRT = 3*15 + 30
SRT = 45 + 30
SRT = 75

And hooray! SRT is equal to half of QRS. So now we know QRS and have also proven our math to be correct.

[Toaster Boy]

Sweet, thanks Saf.

I hate geometry. =\

[Rui L'cie]

Yes, I can :) Just depends on what language. I don't know any Java.

I'm using C++

[Saffy]

You're welcome, Toaster.

I'm using C++

Then I can help you a lot!

[Katie]

Would anyone happen to know the significance/importance of the invention of vulcanized rubber? And on that same note, an accurate picture on what it is exactly would help.

Meanwhile I need to look up like seven other random inventions. :\

[Rui L'cie]

Please help me Saffy >_<

lets see.. I have 15 questions and I dont have any idea how to do it(bacause we only have 2 classes before and the lecturer isnt good at teaching).
I hope I can translate the questions right.

Question 0

Make a program to check whether all the four digit (positive integer) input are the same.

Input
a positive integer that consists of 4 digits.

Output
Show "is not the same" if there are different figures, show the "same" if otherwise.

EXAMPLE INPUT
8488
INPUT OUTPUT FOR EXAMPLE
not equal

I'm guessing it is using the <if> function, and something like <==>
but I dont know how to apply it.

thank you :D