Melody

@@ What is Happening?  [Wrap4]    Mon 2/11/15   Sydney, Australia Time 10:30pm   ♪ ♫

Hi all Web2.0calc  forumites,    

Our wonderful answerers today were  Geno3141, Saseflower, Okim2001, Cars_456, Alan, and Heureka.   

Interest Posts:

1) Fun with numbers

Silly me,  thank you :))

I  would like more explanation of the division please :)

I don't think this one really is answered yet !!

Most of those answers look a bit 'fudged' to me.       lol      

Mon 2/11/15

1) Fun with numbers

    http://web2.0calc.com/questions/using-1-2-3-4-only-once-operations-pemdas-and-factorials-allowed-how-do-you-get-100-and-12-75

2) Sir Phill La-TeX is still with us.    

    http://web2.0calc.com/questions/in-the-diagram-below-we-have-overline-mn-parallel-overline-pq-om-9-oq-6-and-pn-24-find-op-asy-pair-o-m-nn-p-q-m-0-4-0-5-nn#r10

3)  Physics / chemistry            Thanks Heureka  

     http://web2.0calc.com/questions/angle-of-twist

4) Solar cooker                      Not answered yet

    http://web2.0calc.com/questions/solar-cooker

5) When does a derivative exist?  Hence find co-efficient.   Melody

    http://web2.0calc.com/questions/lnx-x-gt-1

6) US Treasury Bonds            Melody

    http://web2.0calc.com/questions/us-treasury-bond

7) line equation.

   I think this would be a good one for other junior high/high school students to look at too.

    http://web2.0calc.com/questions/help_26366

8) Another interesting linear equation question.  Thanks Alan

   http://web2.0calc.com/questions/economy-cars-linear-function#r1

9) Complex number division.   Thanks Guest.  (I'd like more discussion please)

    http://web2.0calc.com/questions/having-troubles-0-72-5-36-1-38-17-90#r4

   http://web2.0calc.com/questions/having-troubles-0-72-5-36-1-38-17-90

Yes it is the equation of a concave up parabola.  

What about it?

Our guest has shown you haopw to solve the equation and get the solution.

Once you do that you should also be able to substitute the solution back into the original equation and check that it makes the equation true.

-(y+3)=2                     check that y=-5 makes this true.

-(-5+3)

=-(-2)

=2

=right hand side.

therefore  y=-5 really is the correct solution.    :))

A line passes through the points (p, a) and (p, –a) where p and a are real numbers and p ≠ 0. Describe each of the following. Explain your reasoning.

slope of the line

equation of the line

y-intercept

slope of a line perpendicular to the given line

Just make up any numbers for p and a and plot the two points and then draw a line between them.

What can you tell me about the line.

If you used different a and p values, what couls you tell me about the line still.

Try this and maybe you will be able to answer your own question. :))

how do you add fractions i am so confused plze help

If you mean on the calculator,

it is just 

1/2 + 3/4      etc.

If you mean by hand maybe this will help

https://www.mathsisfun.com/fractions_addition.html

I knew Sir La-TeX is a very generous philanthropist, He has agreeed to help us I believe.  If he is a gold bricker sometimes that is ok, Sir Lancelot should not come down on him to hard.  He is working for bananas after all!  I suppose when a chimp has the name like Sir Phil LaTeX it is very obvious that he would be a philatelist!     I have some old stamps he may be interested in seeing!  Give him a little space.  Let him study his stamps.  He may find some great code in there somewhere.

I think any Troll who is worth his salt would like sushi.  He probably would like it best when it has ben naturally putrified by the resident croc or gator.  Crocs and gators like to stow there dinner in underwater crevices and come back for it in a few weeks when it is soft and ripe for they have no teeth to chew it with.  I think any self respecting troll would like it that way too!  Steak can be prepared in this way too  

Hi Guest,    You used the 2 twice in both you answers.     

I can 'fudge' too.   LOL

using 1,2,3,4 only once {operations (PEMDAS) and factorials allowed} how do you get -100 and 12.75?

1)        (2+3)1 / 4   =   51  /  4   =   12.75       LOL    

Here is another 'fudge' one

2)         (12)+3/4      = 12  3/4

HERE IS A REAL ONE!!

3)      (3!+4)^2  =100      If I haver to use the 1 as well I can just multiply the whole lot by 1.