Melody

921 Questions
34315 Answers

-2

1728

2

+118677

Mathigon website

I just discovered a site called mathigon

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

Melody Apr 2, 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. read more ..

Melody Mar 16, 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 read more ..

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Melody Mar 15, 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

off-topic

Melody Mar 13, 2022

-6

832

3

+118677

WELCOME BACK CPHILL !

Melody Feb 11, 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. read more ..

Melody Feb 1, 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 read more ..

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Melody Jan 9, 2022

-8

1

973

3

+118677

HAPPY BIRTHDAY CHRIS!

Melody Dec 20, 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 read more ..

off-topic

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Melody Nov 4, 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

off-topic

Melody Oct 29, 2021

+118677

0

You start by dividing both sides by 4

MelodyOct 2, 2013

+118677

0

this question is not complete.

MelodyOct 2, 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.

MelodyOct 2, 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.

MelodyOct 2, 2013

+118677

0

No

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

MelodyOct 2, 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

MelodyOct 2, 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.

MelodyOct 2, 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.

MelodyOct 2, 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)

MelodyOct 2, 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

MelodyOct 2, 2013