Melody

921 Questions
34315 Answers

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Mathigon website

I just discovered a site called mathigon

https://mathigon.org/dashboard
read more ..

Melody Apr 2, 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. read more ..

Melody Mar 16, 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 read more ..

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Melody Mar 15, 2022

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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

off-topic

Melody Mar 13, 2022

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WELCOME BACK CPHILL !

Melody Feb 11, 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. read more ..

Melody Feb 1, 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 read more ..

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Melody Jan 9, 2022

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HAPPY BIRTHDAY CHRIS!

Melody Dec 20, 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 read more ..

off-topic

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Melody Nov 4, 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

off-topic

Melody Oct 29, 2021

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Guest:
what is 1.33333333333333333333333 in fraction form?

If you mean 1.3 repeater then the answer is 1 and 1/3

MelodyJan 22, 2014

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BLUE:
HOW MUCH IS Y=2/3X

It has no value.

If you give either x or y a value then you could find out how much the other one is.

MelodyJan 22, 2014

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devoncassells:
how to find the mass of 13.67cm cubed in grams

Thanks for that good answer Special.

Special wants to know if your cube is filled with feathers (very light) or with lead (very heavy)

Just because something is big or small doesn't mean that it is going to be heavy or light.

cm cube is a size(volume), it tells us nothing about how heavy it is (mass or weight).

MelodyJan 22, 2014

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lauren1213:
Nobody Special:
Well, 1 plus 1/2 is 1 1/2.

Or did you mean 24 fifths plus two fifths?

no i just meant whats 24 plus 2 fifths thank you

Hi Lauren,
do you know what 2/5 of a cake is. Can you describe it to me?
If you are on line at the moment maybe we can chat this through straight away.

MelodyJan 22, 2014

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Guest:
1/(53C6)

What is the problem? Just put it into your calculator exactly as you have written it.

MelodyJan 22, 2014

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tannawirsch:
Thank you SO much for your help! Although I've got one question about this.

I tried to put it into a graph and it doesn't work. I need an equation that is able to be used in a graph.

Sorry, I should have mentioned that earlier.

Hi again tannawirsch,

Why can't you graph it?

They are both in the positive quadrant only.
The first one has c on the horzontal axis, the second on has x on th horizontal axes.
They both have y on the vertical axis.

For the first one start c=1,c=2, etc and calculate the y value that goes with it and then graph.

For the second one the y axis has to go from 0 to 100%
Work out some points starting with x=0,x=1, etc and calculate the y values that go with them and then graph it.

MelodyJan 22, 2014

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You need to be more specific.

MelodyJan 22, 2014

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cin:
The formula mass of CuS04 . 5 H20 is?

Hint: Atomic Mass: Copper (Cu )= 64 amu, Sulfur (S) = 32 amu , Oxygen (O) = 16 amu, Hydrogen (H ) = 1 amu

You might get an answer here if you are very lucky but this is not the best forum for a question like this.
There must be heaps of science/chemistry forums about.
I know there is a section in mathhelpforum.com that deals with chemistry and physics questions as well.

MelodyJan 22, 2014

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Physics:
a man is pulling on his dog with a force of 70.0N directed at an angle of +30.0 degrees to the horizontal.
A.) Find the x component of this force.

Draw the triangle. - Solve with trigonometry.

MelodyJan 22, 2014

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What is the smallest positive integer with exactly 768 divisors.

This question is driving me nuts.

MelodyJan 21, 2014