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Type: Posts; User: Quick

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1. ## Thread: Poll-3 Waiting period for non-students

by Quick
Replies
4
Views
293

### Poll: I would like to know why students would...

I would like to know why students would presumably be getting a priority here.
2. ## Thread: Complex numbers: Prove that if ABS( (z1 - i*z2)/(z1 + i*z2) ) = 1, then...

by Quick
Replies
4
Views
257

### This is what I was thinking in regards to the...

This is what I was thinking in regards to the z1/z2 cancelling out:

We have | ( z1 ÷ z2 - i ) ÷ (z1 ÷ z2 + i ) | =1

From here I thought what I could do is switch the position of z1 and z2 in...
3. ## Thread: Thought experiment, don't know where else to put this.

by Quick
Replies
48
Views
2,500

### Tackling the problem of the average of all possibilities being 1.

Let's assume something either happens or doesn't happen. We'll represent something happening as a 1 and nothing happening as a 0.

Now consider that if we have a possibility that could be a 1, then...
4. ## Thread: Rules for Reduced Row Echelon Form? (video left me confused)

by Quick
Replies
3
Views
159

### In the first video when he gets to 12:43 I have...

In the first video when he gets to 12:43 I have no idea what he is talking about.
5. ## Thread: Rules for Reduced Row Echelon Form? (video left me confused)

by Quick
Replies
3
Views
159

### At 7:33 he starts talking about making the number...

At 7:33 he starts talking about making the number above the 1 a 0. IDK why he does that. (this was answered when I looked up Gaussian elimination rules, thanks!)

OK, so I already think I...
6. ## Thread: Complex numbers: Prove that if ABS( (z1 - i*z2)/(z1 + i*z2) ) = 1, then...

by Quick
Replies
4
Views
257

### Complex numbers: Prove that if ABS( (z1 - i*z2)/(z1 + i*z2) ) = 1, then...

The full questions is:

How do you factor with dividing these (binomials)?

The equation I am working on is:
|(z1-iz2)/(z1+iz2)|=1
7. ## Thread: Rules for Reduced Row Echelon Form? (video left me confused)

by Quick
Replies
3
Views
159

### Rules for Reduced Row Echelon Form? (video left me confused)

OK, so I bring this up because I find working with matrices could potentially be very useful.

Watched a couple videos on how to put things in Reduced Row Echelon Form. The first video...
8. ## Thread: Fill in the [?] in the following: 82 microliters = 8.2 * 10^{[?]} liters

by Quick
Replies
5
Views
241

### It might help to write out 81 microliters without...

It might help to write out 81 microliters without the scientific notation. What I mean is to write it with the decimal point and the 0's before you get to the 82.
9. ## Thread: Thought experiment, don't know where else to put this.

by Quick
Replies
48
Views
2,500

### I thought I replied to this yesterday... I must...

I thought I replied to this yesterday... I must not have actually posted it.

I am still using the circle diagram, but it has changed slightly. I had a dream last night where I saw a much...
10. ## Thread: Ratios Of Lines Within Quadrilateral (Proof): Show AX:XC is same as AB:BC

by Quick
Replies
11
Views
572

### I understand the basic shape of the the first...

I understand the basic shape of the the first shape.. its a parallelogram. with a parallelogram, you know if you were to connect both opposite points that the lines would be equal length. But IDK how...
11. ## Thread: Greatest Common factor from polynomial: 10x​^2 ​​+ 25x + 15

by Quick
Replies
4
Views
283

### Ah, I see my mistakes. Thanks for the help.

Ah, I see my mistakes. Thanks for the help.
12. ## Thread: Greatest Common factor from polynomial: 10x​^2 ​​+ 25x + 15

by Quick
Replies
4
Views
283

### Greatest Common factor from polynomial: 10x​^2 ​​+ 25x + 15

I have no idea what I am getting wrong here...

here is the problem:

3) Factor out the greatest common factor in the following polynomial.

10x​2​​+25x+15

I tried to do two things:
13. ## Thread: I forgot how to reverse foil (such as X^2 + 2X + 2)

by Quick
Replies
19
Views
964

### I see. how do you get the 4 in there? As I...

I see.

how do you get the 4 in there?

As I understand it if you have anything that could equal a perfect square from the formula above then it it factorable correct?

So if you got something...
14. ## Thread: Quick Math Problem (No calculations needed): How many different planes are formed?

by Quick
Replies
7
Views
361

### I am not sure what theorems I have learned about...

I am not sure what theorems I have learned about planes. The concepts of them are probably buried in my subconscious because I had to just look up what a plane actually was. I have taken algebra in...
15. ## Thread: Thought experiment, don't know where else to put this.

by Quick
Replies
48
Views
2,500

### Well, when I talk about what people could do,...

Well, when I talk about what people could do, what I am really doing is inserting game theory into the equation.

But in any case..

This was just a thought experiment to begin with as a way to...
16. ## Thread: Quick Math Problem (No calculations needed): How many different planes are formed?

by Quick
Replies
7
Views
361

### Line j is a line. I just assumed this meant a...

Line j is a line. I just assumed this meant a linear line. So then I just imagined drawing a line. Then I thought that this line has 2 arbitrary points on it that are within and on the line itself....
17. ## Thread: Parameters of Domain and Range: "For F(x) = 2/x, the domain cannot be 0."

by Quick
Replies
7
Views
266

### Thank you both for answering my question. ...

Thank you both for answering my question.

This is pretty much exactly what I think helps me understand this better.

I got tripped up on the second video when they were talking about...
18. ## Thread: Quick Math Problem (No calculations needed): How many different planes are formed?

by Quick
Replies
7
Views
361

### I get the answer to this question, but I have no...

I get the answer to this question, but I have no idea how to slove it mathematically...
19. ## Thread: Thought experiment, don't know where else to put this.

by Quick
Replies
48
Views
2,500

### In a way I have given up on the weight of my idea...

In a way I have given up on the weight of my idea in the way I was originally thinking about it. At this point all I am really trying to do is see if I have just discovered an interesting pattern or...
20. ## Thread: Parameters of Domain and Range: "For F(x) = 2/x, the domain cannot be 0."

by Quick
Replies
7
Views
266

### Parameters of Domain and Range: "For F(x) = 2/x, the domain cannot be 0."

I have watched the first three videos from this: https://www.khanacademy.org/math/algebra/algebra-functions/domain-and-range/v/introduction-to-interval-notation

I am confused as to all the rules...
21. ## Thread: Trump and Global Warming

by Quick
Replies
38
Views
1,848

### That's not exactly a good thing to be at the...

That's not exactly a good thing to be at the mercy of the hands of the wealthy, I mean, more than normal...
22. ## Thread: I forgot how to reverse foil (such as X^2 + 2X + 2)

by Quick
Replies
19
Views
964

### Oh. Thanks for explaining that. It makes more...

Oh. Thanks for explaining that. It makes more sense.
23. ## Thread: Thought experiment, don't know where else to put this.

by Quick
Replies
48
Views
2,500

### Trying to do this (I think): ...

Trying to do this (I think):

{[3x(2x^2)]^2}/144.

IDK how to put my ideas into numbers yet.
24. ## Thread: I forgot how to reverse foil (such as X^2 + 2X + 2)

by Quick
Replies
19
Views
964

### Thanks for answering. I would just like to add...

Thanks for answering.

I would just like to add that in this case, though it doesn't forward my goal to try and simplify part of the equation to solve the equation, it is my goal to learn, and that...
25. ## Thread: Thought experiment, don't know where else to put this.

by Quick
Replies
48
Views
2,500

### OK, so I think the actual equation I am thinking...

OK, so I think the actual equation I am thinking is this:

(3x[{2x}^2])^2

So what it looks like to me is:

(3X[2x^2])^2
(6x^2)^2
6x^4
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