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

-5

858

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+118690

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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870

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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 ..

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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

Fuera tema

Melody 29 oct 2021

+118690

0

Try using this online calculator

http://www.wolframalpha.com/input/?i=14%5E7+mod+17

If you have a specific question that you want to do I will try to help you.

Melody13 dic 2013

+118690

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Guest:
How do you use the modulus operator on the calculator?

Most calculators don't have a modulus operator
What kind of calculator do you have.
You might be able to download a user manual from the internet.

I really would like to know what calculator you have.

Melody12 dic 2013

+118690

0

ahmed:
find sine of 36°52'
what is the process

Hi Ahmed
There is a degrees,minutes and second button on your calculator. It looks like ^o ' "

Make sure your calc is in degrees mode, do you know how to do that?

it is just
sin 36 ^o ' " 52 ^o ' " =

Does this work alright on your calculator?

Melody12 dic 2013

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Guest:
3x<or equal to 18

Have a look at this you tube clip

http://www.youtube.com/watch?v=OKlRsTV43oY

Melody12 dic 2013

+118690

0

Umair Younas:
how to write complex equations in this calculator

Give us an example of what kind of complex equation you are talking about.

Do you mean the web2.0calc ?

Melody12 dic 2013

+118690

0

Jesus:
Quote:

What is 3 wholes and 5 6ths plus 4 wholes and 3 6ths equal

Hi Jesus,
You can add the whole bits easily enough 3+4=7wholes

now look at five sixths + three sixths

Draw a circle - (that is a picture of a cake)
Now cut you cake into 2 halves
now split each half into 3 pieces.
So altogether your cake has been cut (with a pencil) into 6 equal pieces.
Each piece of cake is One 6th (or 1/6) of a cake

Colour in 5 of those (1/6) pieces.
Now you need to add another 3 of those (1/6) pieces
I don't think that there are enough pieces of cake to do this so you better draw another cake and cut the new cake in to 6 pieces just like you did with the first one.
If you don't have enough pieces on your first cake just keep going onto your second cake.
now how much of your cake have you coloured in?
I want you to answer and tell me how far you have now got on this question.

Over to you.

Melody12 dic 2013

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0

You are very welcome. (It's a very common error and it is good that you have got it sorted)

Have a great day!

Melody12 dic 2013

+118690

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You have presented a stack of questions and we are not here to do all your homework for you.
Have a go yourself and write back with specific questions.

this video might help a lot.
http://www.youtube.com/watch?v=OKlRsTV43oY

Melody12 dic 2013

+118690

0

Hi Vraces

The short version is that there is a minus sign in front of the 3 so it was not 3(2-x) but really -3(2-x)

-3(2-x) = -3*2-3*-x = -6+3x

For this whole question
2x - 3( 2 - x)
maybe it would help if you put an extra + in like this

2x +[ - 3( 2 - x) ]

I hope that helps

Melody12 dic 2013

+118690

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monsterbitch:
using the compound interest formula, calculate the value of the following accounts.

£1000 invested for 7 years at 7.5% per year.

£4000 invested for 10 years at 9% per year.

You show me what you can do first. Then I will know what your problem really is.

Melody12 dic 2013