Melody

Hi SpawnofAngle,

If must just prove, a great cartoon never dies.  We definitely need more emicons.  There is no laughing one! 

Melody.

Thanks for that Rom,

I am having major problems with the system this morning.

Can someone tell me if it is my connection or if there are problems with the site please?

thanks.

If the 90 students surveyed were a completely random sample then yes, you would expect the answer to be about 80.  If the sample was not completely random then there would be no way of estimating an answer. 

I am just going to add a little bit of trivia.   

i had never heard of PEDMAS untill I started foruming (7months back).

In Australia we call it BODMAS  

B for Brackets, O for of (meaning, power of) the rest is the same.

Parenthesis are just the curly brackets that arn't used much.

Exponents is not a word used much in Australian schools - we just call them powers.

I don't know why BEDMAS is not used - maybe it would bring on too many snickers in an adolescent classroom. (I am sure many would find it very funny - it is  bringing a smile to my face, I admit it) 

IT MIGHT BE EASY TO REMEMBER THOUGH!

what is a number decreased six times by 2 :D

Hi Paven,

welcome to web2.0calc forum!

that would be

N-2-2-2-2-2-2 = N-(6*2) = N-12   

However, the wording is a little strange.

Hi everybody,

Once again we were swamped with questions.  Reinout wrote me a letter yesterday and these are his words; "It seems like I'm trying to empty the sea with a bucket."  I hope you don't mind me quoting you reinout.  The fact is I was feeling the same way.  Reinout's words helped me to formulate a strategy.  

This is my view;

Members must get priority.  Their questions should be answered as quickly and as comprehensively as possible.  Anonymous postings should be treated much more casually.  Only answer them if you have time and want to do so. 

Could people please use the thumbs up and on occasion the thumbs down symbols when viewing other people's answers.  I do not want to be the only one to decide if an answer is good or not.  sometimes I do not even have the knowledge to do this.

Obviously all answerers are here because we like answering mathematics questions but the forum also has to be fun for us.  We need to allocate time to light hearted banter and to group discussions on interesting topics.  We need to be able to play with or learn from some the questions and answers that are presented to us.  We can not do this if we allow routine answering to take up all our time.

Just prior to writing this wrap I posted a note saying 'All members questions have been answered'  This will be my new wording for such posts.

I am sorry, I have not prepared a list of credits.  There were many great answers and I thank you all.

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I thought you might like me to include a few posts that you may find interesting.

These were a question (posted twice) and 2 answers that appealed to me today.  I want to give them both more considerations.  The answers were from Rom and Chris.   I think the answers are similar but I haven't really thought about them properly yet. Thanks guys.

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Some people will find this one interesting

Reinout enjoyed this puzzle question.  I took time out and enjoyed this puzzle as well!  It is not super hard - why don't you take a look as well?

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Hopefully more of the forum features will be working soon.  

Thank you all.  For the Christians amoung you, Enjoy your 'Good Friday' or what is left of it.  Oh, that sounds a bit prejudicial.  I want everyone else to enjoy their Friday as well. 

Melody,

melodymathforum@gmail.com

Ini terjemahan dalam Bahasa Melayu (menggunakan google)

Jumlah tenaga yang digunakan adalah 1.2kJ / s * 125s = 150 kJ. Jadi haba pendam ialah 150kJ/0.4kg = 375kJ/kg

I would think of it as 

$$y-2 = -(x-3)^2$$

It has got a few extra numbers thrown in but it is a bit like     $$y=-x^2$$

This is a parabola.   It is concave down because of the - in front of the $$x^2$$

The vertex will be where y-2=0 and x-3=0

That is, the vertex will be (3,2)

I hope that helps. 

How did you get the picture in there Chris?

Another interesting answer.  Thank you Chris.