Melody

hi Juriemagic  

This is an unusual question :)

\(5*3^x-9*3^{x-2} \over 3^x-3^{x-1}\\ =(5*3^x-9*\frac{3^x}{9})\div(3^x-\frac{3^x}{3})\\ =(5*3^x-3^x)\div(\frac{3*3^x-3^x}{3})\\ =(4*3^x)\div(\frac{2*3^x}{3})\\ =(4*3^x)\times(\frac{3}{2*3^x})\\ =(4)\times(\frac{3}{2})\\ =6\)

What do you mean by 'The formula for a polygon is'

The formula for what???

Hi Chris  

No... I haven't done that properly for ages. Maybe I should today :)

I need my computer to do that because I take the shot and my phone magically transfers it to Google photos. I could do that much in a food court.  I could probably post it from there I guess but I don't. I take a partial screen shot of it using a program called Gyazo and then it is super easy to post. I need my computer for all that.

I use Gyazo for almost all the pics I post. I'm used to it and it is really easy. I do not have to fuss with the forum's upload process. All my pics are already uploaded.

My eyes are not good enough to use my phone for much at all but it is good for taking photos :)

Here.

You should check my answer by multiplying.

I have added this to our reference material thread.

That is how good I think this is!

Understanding Parabolas:

OfficialBubbleTanks ( a member here in Nov17) Made this interactive Desmos graph so that people can learn to understand parabolas better. This is a  great tool I think :)

Thanks OBT :)

Thanks OBT

This is a a really good parabola helper that OBT has made.

Others here could find it very useful :)

Thanks OBT

Thanks Chris :)

It is not broken.