A quantity Q is the sum of two parts. The first part varies directly as the square of t, the second part varies inversely as the cube of t. given that Q=35 when t=1, and Q=-15 when t=2, find the value of Q when t=-1 We did this stuff in class and I have notes, that now mean nothing to me. How do I set this problem up?
This professor has no sense of humor, and would not appreciate a snowball juggling elf under 1a. It's ONLY 1a. HALP.
Q = X + Y X = (square root of t) +/- (some shit) Y = (t^3) +/- (some other shit) 35 = [1 +/ (some shit)] + [1 +/- (other shit)] -15 = [2 +/- (some shit)] + [2 +/-(other shit)] that +/- can also be a different function. that gets into higher calc which i havent done a whole lot of...i think... plus i'm too lazy to do more of it...i'm kinda high and feelin slow here
ugh. I actually got this nasty feeling reading that problem, the same feeling I used to get in any kind of math class. I never understood that shit in the first place, with or without weed.
Ugh... Mostly what I thought. But I'm still lost. I have: -120=32a+b and 35=1a+b/1 And I have no idea how to solve further, to find b and a (...that is what I need to do, right?)
use matrix functions [-120 32 1] [ 35 1 .5] or....yeah...i don't know how to explain what it is to do, but you multiply/add/subtract to make it so one variable = 0 when you add the functions...then solve for other variable, and then solve for remaining variable.
Okay, fuck that shit, this is on a packet, I got lots to fail, can't spend all night trying to fail this one. http://wiki.answers.com/Q/The_diffe...ive_positive_whole_numbers_is_35what_are_they How the fuck do they get 2x in the second line? I have the exact same thing, and could sub in my shit, but want to know WHY it does that.
oh, fml, I was trying to square the parenthesies all wrong. my 4 years of failure in high school is all rushing back. Maybe when I finish failing this class I'll remember enough to get a D next time:2thumbsup: Thank you. Will probably return within minutes, though.
I enjoy math class when I'm not being called on. I like watching it, and this professor is really cool, I've also had other very good math teachers. I'm no good at it, but can still enjoy being shown it. A hardass, but a cool hardass. But homework/test time, no bueno. Got an hour here to take another stab at it.... I gave up and went to bed last night.
I gave up on graphing a physics lab last night since it was so frustrating.. came back to it this morning and realized I graphed the wrong data.. no wonder the results were so fucked.
Oh, gee, I thought this thread was going to be about marijuana! Math used to be my best subject. I wonder how kids manage today when you can figure all this shit with a calculator and no longer need to think... My question back at ya, is why does it fucking matter what the value of Q is? Will I need to know it at the supermarket? at the bank? to use an iphone? to play Wii? Will it solve the world's financial crisis? Will it end the endless wars? Will it reverse global warming? Will it provide endless free energy for everyone? Then who the fuck cares besides some math teacher? Until the education system starts dealing with the REAL WORLD, none of these problems will be solved.
RooR does seem to enjoy it on some level, I think that's the answer to your questions, but I get your point.
I read this, considered taking a crack at it, then decided to watch midget on BBW porn instead. sorry Roor!