Melody

921 Questions
34316 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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-4

because -4*-4*-4 = -64

also, a cube root is a power of 1/3

So, you can put (-64) ^ (1/3) into your calculator and get the answer.

MelodyOct 2, 2013

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What is a -csc function?

MelodyOct 2, 2013

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MelodyOct 2, 2013

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I've answered the question for you but keep in mind that I often make careless mistakes.

Pg1.jpg
Pg2.jpg

MelodyOct 2, 2013

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MelodyOct 1, 2013

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Multiples of 10 are 10,20,30,40,50,60,..........

Multiples of 12 are 12,24,36,48,60,72,.......

Multiples of 15 are 15,30,45,60,75,90,........

now, you can tell me, what is the lowest common multiple?

MelodyOct 1, 2013

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You have m because m is the slope
so
y=-3x+b

You also know that when x=4 y=0 so you can plug these values into the equation to come up with the correct value of b

Then you just write the equation with the number values of m and b.

MelodyOct 1, 2013

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It cannot be simplified.
It is an irrational number and cannot be expressed exactly as a fraction or as a decimal.

You can use your calculator to estimate it if you wish.

MelodyOct 1, 2013

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(2x)^2(4y)^2 this is a bit ambiguous but I going to take it to be

(2x)^2 * (4y)^2 =

= 2^2 * x^2 * 4^2 * y^2

= 4 * x^2 * 16 * y^2

= 64 x^2 y^2

MelodyOct 1, 2013

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You have just one non-zero number in front of the point 5.046 (you can put the last zero if you want it doesn't make any difference).
You count the number of places that you moved the point - remembering that any whole number has an invisible point at the end. the number of places that you move the point is the power
If the number is little (less than one ) the sign of the power will by negative. If it is a big number it will be positive.
Now you should be able to do it.
If you respond with the answer I will tell you it it is correct.

MelodyOct 1, 2013