Melody

921 Questions
34315 Answers

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1731

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+118692

Mathigon website

I just discovered a site called mathigon

https://mathigon.org/dashboard
और पढ़ें ..

Melody 2 Apr 2022

-10

596

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Reporting problems.

There are a number of people having problems at the moment.
If you lodge an error can you please give all relevant information that you can think of.
Where you are in the world - the city or the country - is often very important information. और पढ़ें ..

Melody 16 Mar 2022

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1404

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How to make an empty rectangle in Latex

I just worked out how to make an empty box of various horizonal size easily in LaTex.
This is not a recommended method, but other methods that I have tried here have not worked.
This coding is really simple. Just put letters inside और पढ़ें ..

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Melody 15 Mar 2022

-5

859

3

+118692

HAPPY ANNIVERSARY CHRIS! (CPhill)

I just realized that you became a member here exactly 8 years ago today!

It has been great to have you here all that time

और पढ़ें ..

विषय से परेे

Melody 13 Mar 2022

-6

837

3

+118692

WELCOME BACK CPHILL !

Melody 11 Feb 2022

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+118692

Very interesting question. No high level maths required.

This question was posted a couple of days ago.
https://web2.0calc.com/questions/geometry_73561

I think it is really interesting. It looks much more difficult than it really needs to be. और पढ़ें ..

Melody 1 Feb 2022

-8

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Members have a better experience. Their questions get more attention.

Almost everyone is posting as a guest.
If you post as a member your questions will have a far greater chance of a timely and helpful response.
If you are a genuine learner and interact with us, you will become known and answerers will do और पढ़ें ..

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Melody 9 Jan 2022

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HAPPY BIRTHDAY CHRIS!

और पढ़ें ..

Melody 20 Des 2021

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1

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Some guidelines for question askers.

Please note:
1) Ask only one question per post.
2) When asking a question talk about what you have tried for yourself. Then people will take you more seriously and will be more able and willing to help.
3) If you get an answer और पढ़ें ..

विषय से परेे

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Melody 4 Nov 2021

-10

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Remeniscing - a little historical humour.

I just found this old post that some of you, who have been around for a while, might find amusing.

https://web2.0calc.com/questions/look-at-the-new-leader-board

विषय से परेे

Melody 29 Okt 2021

+118692

0

I just did this for Stu so I thought I would tack it in here as well.

140208 more indices.JPG

Melody7 Feb 2014

+118692

0

The title is (In Albanian)
I want to teach mathematics

duu tw regjistrohm

These words do not translate into English. Are you sure your spelling is correct.
--------------------------------------------------------------------------------------------------------------
Përkthyer nga anglishtja mbrapa
Titulli është (Në gjuhën shqipe)
Unë dua të mësojnë matematikë

duu tw regjistrohm

Këto fjalë nuk do të përkthehet në gjuhën angleze. Jeni te sigurte drejtshkrimi juaj është e saktë.

Melody7 Feb 2014

+118692

0

Stu:
Sure. I will use "sup" now. I didn't know what it was or see it. Thanks for pointing it out. Btw, some answers are wrong from the page I am working on, which I only just proved to be correct. Therefore I have left them out.

Here is the questions.
(2x^1/2 3x^1/3)² =

(12a^1/2 / 4a^1/3)² = (my answer =36x) a simplify website gave 36x(^-10). What is the (^-10)?

(2t^-1)³ / 6t² = (i got 2t³)

4t^-6 3t³ = fraction? How and why do we solve to a fraction?

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Stu, if you are not doing so already, could you please read the nightly wrap post. It will help you understand what goes on here.
A number of times in the past I have requested that people give relevant titles to their posts, but it has limited effect.
-----------------------------------------------------------------------------------------------------------------------------
I think that these answers are all correct.
140207 Indices.JPG

Melody7 Feb 2014

+118692

+14

Hello everyone,
Today was a little quiet, for me at least, which was really good.
There were some great answers from Rom, Reinout-g, myrandomusername, unknown name and guest.
Lostjr126 answered 3 puzzles, he/she is only in 6th class, and he/she only joined today. Maybe he/she will be a force to be reckoned with in the years ahead.
There were also some really nice thank you's from Lostjr126, tannawirsch, and PaPreciousVang. It is always nice when people express their appreciation.

There is one unanswered question http://web2.0calc.com/questions/malaria
I didn't think it made sense but I could be wrong.

In regards to yesterday's request. Thanks I like Serena, I just found the character map, I haven't tried to use it yet but I certainly will.
Reinout-g also added some web addresses to our, as yet unsorted, thread of resources. Thanks Reinout.

I really like Rom's answer when someone ask him 'What is pie" He just gave a web address. If you want to know what is is you will have to take a look.
http://theotherdayatportrait.files.wordpress.com/2012/03/pi7.jpg
Thanks Rom, You always give good high level answers but I liked your younger, and also your more light-hearted answers that you gave today.

Stu, joined us yesterday and is making good use of the forum. He posted under one of my information posts. When i pointed this out, he said, "well isn't that what it is there for" .
Maybe he is right, maybe we should start some threads with really appropriate titles, The first post/s could be a fairly comprehensive look at the topic. Then the people asking questions could either continue the thread or if they post elsewhere, they could be directed to the thread. I have never made good use of the Search Box at the top of the questions. But if the thread is titled appropriately, it does seem to work very well. If the search works well there would be no need for me to bump the threads up each night. Any comments on this idea?

That's it, thanks everyone and have a great weekend. (Mine has already started)
Melody.

Melody7 Feb 2014

+118692

0

Melody7 Feb 2014

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Guest:
you need to distribute.

4x - 3 (x-2y) + 1/2 (6x-8y)

= 4x -3(x) and -3(-2y) + 1/2(6x) and 1/2(-8y)

= 4x -3x +6y + 3x - 4y

= (4x-3x+3x) + (6y-4y)

= 4x + 2y

sorry, I didn't notice.
It was still a really nicely laid out answer.
I was very impressed.
Melody.

Melody7 Feb 2014

+118692

0

sinega:
a square has perimeter of 20 cm. find the length of its diagonal correct to 1 decimal place.

Hi sinega,
Draw the square, work out how long the sides are. They have to add up to 20cm
Draw in the diagonal.
Use Pythagoras's theorem to find the length of the diagonal.

Melody7 Feb 2014

+118692

0

"volume of 1x100000"

Volume has to be measured in something, ul, ml, l whatever.

anyway, I don't know if anyone here will understand exactly what you want.
I suggest that you try posting in
http://mathhelpboards.com/potw/
or
http://mathhelpforum.com/
you might have more luck there.

Tonight I will ask the others if they can help you.

Melody7 Feb 2014

+118692

0

(2x^ 1/2 3x^1/3)^2 = 4x^5/3

Do you mean
[2x ^1/2 * 3x ^1/3] ² = 4x ^5/3

I wrote this with the help of the 'sup' button which is located above the smilies

to enter 3 ² just press
3 'sup'
the cursor will be put where you need to enter the index. Then move your curser to the end and keep going.

If you don't use the 'sup' button you need to add lots of brackets. Please use the sup button, it is so much easier for everyone to read
I'll do the first one - I may not interrprete your meaning properly.
[2x ^1/2 * 3x ^1/3] ² = 4x ^5/3

[2 ²x ¹ * 3 ²x ^2/3]= 4x ^5/3

4x * 9x ^2/3= 4x ^5/3

36 x ^5/3= 4x ^5/3

x=0

I suspect that this was not the correct interpretation.

Melody7 Feb 2014

+118692

0

That is a brilliant explanation.

Melody7 Feb 2014