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Oh, okay. I'll do that.

Here's what I tried:

First I looked at 1.75 + sqrt(3) and said, "Well, why not set it equal to a variable?". So I replaced it with x.

Then I got \(2\sqrt{x} - x\), but that didn't help at all. I can't set it equal to anything. I can't solve it with a variable. So then I thought I would just need to solve it by hand. But how in the world would I know what \(\sqrt{3}\) was? Luckily, I remebered that it was 1.732. So, thenI solved it as shown below:

\(2\sqrt{1.75+1.732} - (1.75+1.732)\)

\(=2\sqrt{3.482}-3.482\)

Now what? How do I solve this?

dg, 

I know it is harder but try to teach without giving final answer whenever it is possible.  (most of the time anyway)

Encourage the kids to tell you what they think that the answer is.

If they do not get back to you them maybe they were only ever interested in the answer (which we do not want to encourage).

Or maybe they have been given all that they need.

Hi Rom,

He told me that these are questions from old mathematics competitions and he is using them to 'study' from because he is going to do this type of test himself.

By frequency, I think you mean period. The period of a sine function is 2pi/(whatever number is in the brackets of the sine).

So, for this question, the period (or frequency) is 2pi/3.

Am I the only one, or can no one see the image?

One important thing to note is that the equation for the line of symmetry for a quadratic is x= -b/(2a).

So, -b/(2)a = -3

b/(2a)=3

b/a=6.

Oh, no. These are just questions that I don't have the solutions to and I can't figure out how to do them. I have attempted them already, but I keep getting the wrong answer. It's not like I'm cheating or something. I just need some help.

actively collecting, as if you intend on publishing some sort of study guide to these problems.

\(\text{I'll assume it's compounded annually}\\ fv = pv(1+r)^n\\ fv = 1000(1+0.045)^4 = 1192.52\)

What do you mean by "farming"?

what is your reason for farming all the methods to solving these questions?

That is excellent. I did not see that one.

It might be nice if you talk about your questions a little when you post them, I mean what you have tried etc

and let us have the same information as what you have.     (I mean the answer)

That would come across a lot better.    :)

You can move it k units to the left (negative direction)  by replacing x with x+k

You can stretch it vertically  by  by multiplying the whole function (LHS) by a constant.

So what do you think the answer might be.

Here is the graph of      f(x) =cos x 

Here's what I tried:

Let's call the faces of the cube as follows:

Front - 1

Back - 4

Right - 3

Left - 5

Up - 6

Down - 2

The maximum height will be at the time when

dh/dt = 0

Do you know how to differentiate h(t) to get dh/dt?     [you can just replace h(t) with y if that is more familiar to you]

Please noone answer over me.

is that correct?

I think it would then be A, although that first stence is quite confusing to me

I'm sorry. I'm not trying to cheat or anything. This isn't even related to school. These are just questions from competitions and I'm trying to improve my score, so that I can do well when I actually have to do the competition. I appreciate your help, but please don't think I am cheating or trying to avoid trying questions. As you can see, I am answering other people's questions too. When I was telling the correct answer, I wasn't doing it to be mean or something, I was just saying that there is a different answer that is claimed to be the "correct answer". Also, I wouldn't have gotten this far if I made people think for me.

The paragraph is talking about God, but he is just used to help strengthen the point.

So look at the beginning of the paragraph, what is it trying to convey?