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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soccerfreak:
10% of what number is 16

10% x10 = 100% The percentage is multiplied by 10 so

16 x 10 = 160 The number is multiplied by 10

MelodyMar 16, 2014

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notanidiot:
4(x + 1)^2

which one need to do first?
multiple first or power first?

[size=150]power first - definitely power first![/size]

MelodyMar 15, 2014

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grateful person:
Thank you very much... I can finaly finish my homework after being online searching for the answer for about 4 hours(sigh)

Thank God~~~~~~~~~~

No one has ever called me God before. Sounds a bit irreligious.
(I hope no one is offended)

MelodyMar 15, 2014

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Tomorrow is the weekend everywhere in the world so I doubt that it is due tomorrow.
Plus, for the benefit of others. This question has been posted multiple times and is already answered.

MelodyMar 15, 2014

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Guest:
What is the square root of 392? (pls give complete ans)

Already answered. Please do not post the same question multiple times.

MelodyMar 15, 2014

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pls help:
someone out there, pls help me... this is my 4th post:

what is the square root of 392, is it an irrational number?

19 ²= 361
20 ²=400

so sqrt(392) is an irrational number.

392 divided by 4 = 98
98 divided by 49 = 2
so
4 x 49 x 2 = 392
sqrt(392) = 2*7* sqrt(2) = 14sqrt(2)

MelodyMar 15, 2014

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Yes, there is an infinite number of prime numbers.

Maybe you would like to watch this.

www.ted.com/talks/adam_spencer_why_i_fell_in_love_with_monster_prime_numbers.html

MelodyMar 15, 2014

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Guest:
Yep, ur right. Why isnt anyone answering my question!!!!

Like I said, I don't think there is enough information.

MelodyMar 15, 2014

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+14

Hi everyone,
I didn't answer hardly any questions today. I like to have a day like that every now again.
Great answers were forthcoming from Alan, Samgelinas, Dms, Rom, CPhill and Juicybebe101. A big thank you to each of you.
Everyone is into the weekend now. Enjoy what is left of it.
Melody.

MelodyMar 15, 2014

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math_lover101:
How do you find the exponent for this problem "e^((ln(3)*ln(2))"?

I will say the same as the CPhill and Dms, (oh, juicybebe, do you agree now?)

e^((ln(3)*ln(2))

OR

e ^ln(3)*ln(2) ==> {e ^ln(3)}^[ln(2)] ==> 3 ^ln2 ==> 2.14148.....

OR

e ^ln(2)*ln(3) ==> {e ^ln(2)}^[ln(3)] ==> 2 ^ln3 ==> 2.14148.....

Now I think that this is an irrational number which means that no matter how many digits you express it to it will still be an approximation

MelodyMar 15, 2014