http://i.imgur.com/O8VQ5Dm.jpg
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Re: forwards from grandma
oh, snap.
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Intense Energy.
Wat is dis.. i don't even....
sorry for doublepost - otherwise no one might notice the update:
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random name generator in the Path of the Exile.
He's not holding the chalk as if he's going to write anything else down, he's using it to point.
True, and what would he have done anyway. Put 2x18 in parentheses and add the +1 after the fact.
I had a professor who once made a simple mistake while solving an equation and he had a doctorate in math which he damn well deserved. It was a curious thing since his eventual solution to the equation he was working on was correct. Anyway I pointed out his mistake since I seem to have been the only one to notice it and he simply looked at the board and then corrected his mistake. As it turns out he had already solved the equation in his head, thus the correct solution, and was simply not paying attention to what he was writing. This though, is definitely not the same.
You wouldn't need a parentheses.
Yeah you would or at least I would because I would read 2x18+1 as 2x19 where as (2x18)+1 is completely different.
You always perform multiple/divide before you do plus/minus, just like you would do powers. It's how mathematics is done.
Brackets would only be needed if you wanted to change that order.
2x18+1 = 36+1 = 37
If you wanted to add 1 first, you must use brackets. ie 2x(18+1)
@Ark: He could be pointing, but he still wasn't finished.
I know, but as I said I would read it as 2x19. It is a curious quirk of mine. If I were solving the problem in my head I wouldn't have the problem but reading it. I would just read it as 2x19. Ha, this is funny that is an idiosyncrasy I have not had to explain since elementary school, really. No worries Buff I can do math, my mother wanted me to be a math major after all but I had other ideas.
Lol
. How you read it is always relevant just ask any dyslexic kid. As for math being absolute, that is quite an interesting statement. I had one friend who is a physicist who could argue that with you and another who fancies himself a philosopher who would but as I am neither of those two and you are you, I won't. Point conceded.
Is it possible that the image could have been 'shopped?
I'm inclined to believe that the equation isn't finished otherwise, since that's a relatively large mistake to have posted on a school website. Or rather, it's possible that the teacher could have made the mistake, but you'd think the photo would have been reviewed before going up.
Isn't it a fricking university, according to the name? Why would he be writing elementary school mathematics on the chalkboard? Obviously he wasn't finished.