Melody

921 Questions
34315 Answers

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Mathigon website

I just discovered a site called mathigon

https://mathigon.org/dashboard
lee mas ..

Melody 2 abr 2022

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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. lee mas ..

Melody 16 mar 2022

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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 lee mas ..

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Melody 15 mar 2022

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871

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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

Fuera tema

Melody 13 mar 2022

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WELCOME BACK CPHILL !

Melody 11 feb 2022

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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. lee mas ..

Melody 1 feb 2022

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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 lee mas ..

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Melody 9 ene 2022

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HAPPY BIRTHDAY CHRIS!

Melody 20 dic 2021

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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 lee mas ..

Fuera tema

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Melody 4 nov 2021

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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

Fuera tema

Melody 29 oct 2021

+118725

0

(x,y): y = 2x + 1 y = x/2 + 4

Since y equals both those expressions it is easiest just to say

2x+1 = x/2 +4

then multiply both sides by 2 to get rid of the fraction
and I am hoping you can do it from there.

When you get your answer, plug the numbers back into the original equations to check that they are correct.

Melody22 oct 2013

+118725

0

Melody22 oct 2013

+118725

0

speed is distance/time
that is
distance divided by time

Melody22 oct 2013

+118725

0

Area = (1/4 ) of pi* r ²

plug in the numbers that you know and solve for r.

Melody22 oct 2013

+118725

0

You can do this yourself

plug in a value for x
then plug in the number that is 1 less for x
And, see what the difference is.

For example you might use 3 then 2
or
1 then 0
or
200 then 199

You will get the same answer whatever numbers you choose.

Melody22 oct 2013

+118725

0

Translation
I'm sorry if the question is weird, cpoied and pasted the question that my teacher wrote. Unfortunately I was too lazy to write this in English so thank you for the translation and if it isn't right, sorry don't understand it! You have a nice day and please help me

Hi Rosey.
FIT is obviously a Mexican tax. You will fave to send me some information about the tax before I can help you with this question.

Hola Rosey.
FIT es obviamente un impuesto mexicano. Lo harás fave para enviarme información sobre el impuesto antes de que te puedo ayudar con esta pregunta.

Melody22 oct 2013

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I am very proud of you. Congratulations!

Estoy muy orgulloso de ustedes. ¡ Felicidades!

Melody22 oct 2013

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Thanks for the information Rosey and I am very glad that I can help you.
I am using Bing for the translation.

Gracias por la información Rosey y estoy muy contento de que te puedo ayudar.
Estoy utilizando a Bing para la traducción.

Melody22 oct 2013

+118725

0

4x means 4*x
4*x = 20

4 times ? = 20

Well, what DOES x equal?

Melody21 oct 2013

+118725

0

Which is higher 5.05 or 5.5

They are both 5 and a bit so the question is
which is bigger 0.05 or 0.5

0.5 = 5/10

0.05 = 5/100

Do you know what the answer is?

Melody21 oct 2013