# The Numberphile Topic -- The Official Nerdy Math Topic! [OLD]

#494

Woah. What happened to this topic
I remember when we used it a lot

#495

I tried to spam like this topic
I'm not finished

Edit: I'll continue spamliking it tomorrow

#496

Okay here's a challenge

This is something on solid angles

And here is the cone.

#497

I just realized it's really easy if you think about it

#498

Why did you capitalize “peacefully”?

#499

Oh, by the way, I’M BACK!!

Hopscotch Programming Puzzles
#500

@JonnyGamer @Stradyvarious I haven’t watched this entirely yet and I’m not sure if you would like it, but I thought of you both when I saw this!

It’s a maths video from Vsauce:

#501

Oooh! I saw that on my recommended list! Awesome! Thank you!

Woah! I watched it just now! That’s crazy mind blowing!!

#502

Thanks for the link, I’ll check it out when I have time.

#503

I had my first PreCalc Class on AoPS today! :D

#504

If you can’t read it, this is what it says:
Find the square root of the sum of the areas of all the individual shapes in Bill Cipher including his eye.
The key; 1 inch = 5 meters.

#505

I’m going into 5th grade and I don’t remember how to do long division… oops?

#506

Has anyone solved Bill Cipher yet?

#507

oooo!! how was it??

started AP Calc last thursday. seniors/juniors are scary.

#508

It was pretty good! The instructors type wicked fast, and I got some whispers from them and also one of the teachers made a mini private group chat between me and him for like a minute. Also, I got to stay and chat with the students after the class. (Imaginary Numbers is the next topic and I can’t wait for e^(i*pi)

Why are the seniors and juniors scary? There are probably a lot of them I guess

#509

Hey guys. I never thought I’d ask this (first time for everything), but I need some help with my homework. With 8m-(8-m)=28, would it be best to not change the 8? 16 and 64 didn’t really work well. With 8m I got 2.5.
Also, how do I solve a problem like this one? 8x-5=15-x

@JonnyGamer

#510

For 8m-(8-m)=28, you have to distribute the negative outside the parentheses into the 8 and the -m.

-1 times 8 = -8, and -1 times -m = m. So, you have 8m-8+m = 28. Can you take it from here? (Hint: Collect like terms)

For the second equation 8x-5=15-x, add x to both sides. 8x-5+x=15-x+x. Simplify and you get 9x-5=15. Do you understand those steps?

#511

Yeah, thanks!

#512

Ok, so, I got this absurd number;
2.22222222222
Did I do it right?

#513

That’s correct! You would notate that 2.2, but with the second 2 with a bar over it. You would call it “2.2 repeating”