Math Help/Tutoring Thread

[cc]z@nd! · Post by **[cc]z@nd!** » Sat Jan 10, 2009 9:41 pm

well, here I am again.

took a break from halomods i suppose, but now the winter semester's started and i'm in calc. I guess i'll come back here a bit, but we're only on limits right now which aren't confusing at all.

Ketchup_Bomb · Post by **Ketchup_Bomb** » Sat Jan 10, 2009 9:48 pm

Just wait until you get to rotating functions around an axis to make 3D shapes and attempt to calculate the volume of the shape. Esh.

Actually, it was pretty neat to see that a function on a graph that has an infinite amount of area, rotated around an axis to make the above mentioned 3D shape, has a definite volume.
Yeah, it doesn't make sense at all, but hey, that's math for you. xP

I should bust out my proofs that math is wrong again.

Altimit01 · Post by **Altimit01** » Sat Jan 10, 2009 10:46 pm

Well I enrolled in Matrix Methods but am not sure I'll stick with it depending on course load of my other classes. The 3D stuff isn't really all that bad. It's still integrals in one dimension after all.

Geo · Post by **Geo** » Mon Jan 12, 2009 4:44 pm

Cookie to anyone who can tough this difficult, tedious and exhausting maths quiz.

How many GB's do I have total, how many are being used, how many are free, and what total percentage is used.

guysullavin · Post by **guysullavin** » Mon Jan 12, 2009 4:57 pm

Total: 2066.2 GB
Using: 1190.07 GB
Free: 876.13 GB
Percentage: 57.60% (rounded to nearest hundreth)
can i has cookie now? or shall I add it to your tab?

TomClancey · Post by **TomClancey** » Mon Jan 12, 2009 5:00 pm

Not quite my Uncle's total capacity, 3.75TB. Six 750GB's, one is for drive failure. RAID4 I believe, maybe 5.
He has like, 250GB left.

Geo · Post by **Geo** » Mon Jan 12, 2009 5:03 pm

Now tell me how long it would take to defrag that lot.

guysullavin · Post by **guysullavin** » Mon Jan 12, 2009 5:06 pm

Ten Zerg hours.

Geo · Post by **Geo** » Mon Jan 12, 2009 5:08 pm

TomClancey wrote:Not quite my Uncle's total capacity, 3.75TB. Six 750GB's, one is for drive failure. RAID4 I believe, maybe 5.
He has like, 250GB left.

If I factored in my two laptops, my mac mini and my iPod touch and the 1TB External HDD sitting under the HDTV, I'd be well over that.

TomClancey · Post by **TomClancey** » Mon Jan 12, 2009 6:54 pm

Geo wrote:If I factored in my two laptops, my mac mini and my iPod touch and the 1TB External HDD sitting under the HDTV, I'd be well over that.

That's all from separate sources, mind you. His 3.75TB is in a single server. If I totaled all his storage, it would be around 5 or 6TB. MacMini with 1TB or so, PCH with 750GB, and some other things, can't remember.

guysullavin · Post by **guysullavin** » Mon Jan 12, 2009 8:05 pm

I still want my cookie

WaeV · Post by **WaeV** » Tue Jan 13, 2009 4:28 pm

Had to work this out for my physics project, let's see what you guys can make of it:

Assume a 75kg man is riding a 15kg bicycle up slopes of various inclines. If the pedal arm is .25m long, and the driving wheel has a radius of .3m, what are the approximate minimum gear ratios needed for the man to retain his current velocity while applying maximum force at 45, 30, and 15 degrees?

Don't forget that torque on the pedal arm is r sinƟ.

noscottno · Post by **noscottno** » Tue Jan 13, 2009 5:54 pm

I have a 74% in Spanish. I have a final that's 10% of my grade. What percentage do I need to get on said final to get up to 80%.

Aumaan Anubis · Post by **Aumaan Anubis** » Tue Jan 13, 2009 5:58 pm

noscottno · Post by **noscottno** » Tue Jan 13, 2009 6:46 pm

Oh man.

Aumaan Anubis · Post by **Aumaan Anubis** » Tue Jan 13, 2009 7:02 pm

Good luck with that extra credit.

Ketchup_Bomb · Post by **Ketchup_Bomb** » Tue Jan 13, 2009 7:54 pm

WaeV wrote:what are the approximate minimum gear ratios needed for the man to retain his current velocity while applying maximum force at 45, 30, and 15 degrees?

1, 1.

Or become Lance Armstrong, and bike will pedal you.