Math Is Fun Forum

While concept was forming in my head, I was wondering if functions could change (x + y)(x + y) (factoring) vs quadratic approaches so that factoring might work where it doesn't without tangents, cosines etc...However, I realized that doesn't really make sense so that quadratic equation was necessary.

That was sort of the rationale behind my original question. I realize it's sorta nonsense tho. Factoring clearly wasn't going to work. Unless I'm missing something else...which, of course, is very possible. Lol

Yes, that's what I meant. Thanks.

Yes!! thx

...and magic hexagon and unit circle. And started learning about I matrix vs 0 matrix. I actually learned (relearned) a heckload of math today. Haha! Now, I just have to practice it for 1000 hours so as not to forget.

thanks. for some reason, I wasn't putting together the fraction rel to sides of triangle. really appreciate it.

Sheesh, they seem so freakin obvious now. Haha. Thank you so much again or ur efforts to help me!

Thanks.. Sorry, I freakin copied it wrong. Just fixed it!!

Eesh. Again, my apologies. I appreciate effort.

Thanks again guys! Your perspective is more helpful than you might know. The language and approach is very grounding which is why I ask general questions sometimes. Great stuff.

Okay, I'll take a stab at 1 before somebody who actually knows tells ya. I could very well be wrong but I believe 2 standard deviations is defined as 95% are within mean. Since they gave you one standard deviation, I would guess that min height is 155cm and max is 175cm. Annnnnd BOY, could I be wrong. Haha!!

I was briefly looking ahead in a book I'm using to refresh on college algebra and saw some stuff in the section on functions that looked like there might be some weird factoring involved. I'll look again and post one. I'm guessing it probably wasn't factoring now that I think about it but...