Melody

921 Questions
34315 Answers

-2

1728

2

+118677

Mathigon website

I just discovered a site called mathigon

https://mathigon.org/dashboard
lire plus ..

Melody 2 avr. 2022

-10

590

1

+118677

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. lire plus ..

Melody 16 mars 2022

-4

1400

5

+118677

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 lire plus ..

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Melody 15 mars 2022

-5

854

3

+118677

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

Hors sujet

Melody 13 mars 2022

-6

832

3

+118677

WELCOME BACK CPHILL !

Melody 11 févr. 2022

-6

705

2

+118677

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. lire plus ..

Melody 1 févr. 2022

-8

863

11

+118677

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 lire plus ..

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Melody 9 janv. 2022

-8

1

973

3

+118677

HAPPY BIRTHDAY CHRIS!

Melody 20 déc. 2021

+2

1

5468

9

+118677

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 lire plus ..

Hors sujet

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Melody 4 nov. 2021

-10

1070

1

+118677

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

Hors sujet

Melody 29 oct. 2021

+118677

0

You start by dividing both sides by 4

Melody2 oct. 2013

+118677

0

this question is not complete.

Melody2 oct. 2013

+118677

0

What events, you have only mentioned one, taking 1 card from a pack. You need to have two or more events to talk about exclusivity.

Melody2 oct. 2013

+118677

0

No I won't give you an answer but I will tell you that the first thing you need to do is add 5g to both sides.

Melody2 oct. 2013

+118677

0

No

If you simplify or solve an inequality you still get an inequality for an answer.

Melody2 oct. 2013

+118677

0

2d+11-5d-4 = 2d+11+(-5d)+(-4)

I wouldn't bother with the brackets. Just remember that he minus sign belongs to the number behind it.

2d+11-5d-4 = 2d-5d + 11-4 = -3d +7 or 7-3d

Melody2 oct. 2013

+118677

0

5.001 and 5.02

The biggest place value is on the left They both start with 5. so they are both 5 and a bit.
The first digit after the point is 0 on both so that's no help
the second digit is 0 on the first and 2 on the second.
2 is bigger than 0 so 5.02 is the biggest.

The last 0 on the first one is of no relevance at all.

Melody2 oct. 2013

+118677

0

What kind of calculator are you using.
-8^(1/3) works fine on my calculator.

What is sqrt(-8,3) looks like the input for some computer language,it is not standard maths notation.

Melody2 oct. 2013

+118677

0

The question doesn't make sense

Maybe you mean (170)/(13.7) km2 = 170/13.7 = 12.4 km2 to 1 decimal place ( just use the divide button)

Melody2 oct. 2013

+118677

0

I don't know what level you are studying at but this is the answer.
I have made some assumptions like the interest is paid at the end of each month.

Compounding question.jpg

Melody2 oct. 2013