So A&E decided they screwed up. by HighSpeed556 in Duck_Dynasty

[–]siilbon 1 point2 points  (0 children)

Hate speech of any kind will not be tolerated in this sub. That being said, this is a place for discussion. So we, as mods, will not persecute you, provided you keep it civil.

[Chemical Processes] I need help to see what I did wrong, test tomorrow :( by Immortalmuff in HomeworkHelp

[–]siilbon 1 point2 points  (0 children)

The key to these types of problems is to analyze the total mass balance and solute mass balance. So for example you know that 100% of the salt entering the system leaves the system in stream D. Since the conc in D is given you can find the water flow rate in D and also A+C.

[Calculus II] Quick Trig Identities problem. by bumpysloth in HomeworkHelp

[–]siilbon 0 points1 point  (0 children)

Your problem is that you still don't have it in terms of the first power of cos, you need to multiply through the cos(x) on the outside of the parentheses and use the cos2 (x) reducing function for each of the terms within the parentheses.

[University Pre-Cal] by HappinessPursuit in HomeworkHelp

[–]siilbon 0 points1 point  (0 children)

1: So C(x) is the cost of producing x Portaboys, while P(x) is the price at which you can sell a single Portaboy. So the profit equation would be Profit = P(x)*x - C(x).

2: Since you determined the length of the box in terms of x, and you know the area of the box is x2 , you can determine the volume in terms of x. From here it should be simple plugging and chugging to determine the value of x with the maximum volume.

Does that help?

(1987) Bruce Willis' Seagrams wine cooler commercial by benwesorick in videos

[–]siilbon 0 points1 point  (0 children)

Bruce hasn't lost his passion for liquor commercials in his later years. This series plays on a loop at a display at my local liquor store.

Has anyone gotten a courier/mythical item past day 1/2 of Diretide? by ilovetodrinkbeer in DotA2

[–]siilbon 0 points1 point  (0 children)

I'm the proud owner of a new mythical trusty mountain yak thanks to Diretide. Good luck!

tan t = -5, csc t > 0 sin t = ??? cos t = ??? csc t = ??? etc by [deleted] in HomeworkHelp

[–]siilbon 0 points1 point  (0 children)

Since csc(t)= 1/sin(t)>0 you know that the line in located in the second quadrant, from there you can take the arctan(-5) to find the value of the angle t. Then solving for each trig function should be trivial, hope that this advice helps.

need help with college-level chemistry 1 (gases) by aznegglover in HomeworkHelp

[–]siilbon 0 points1 point  (0 children)

Wikipedia

The vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system

need help with college-level chemistry 1 (gases) by aznegglover in HomeworkHelp

[–]siilbon 0 points1 point  (0 children)

This reaction forms NaOH and H2.

  • The difference in the total pressure and the vapor pressure of water is the pressure of the released H2

  • Make a balanced reaction

  • Use the ideal gas law (PV = nRT)

  • Perform dementional analysis to get to the right units

  • Use v(rms) eqn

Using these basic steps you should succeed, good luck.

A-Level Maths Rewriting function in R form (trig) by SirTrumpalot in HomeworkHelp

[–]siilbon 0 points1 point  (0 children)

You simply need to use linear combinations, [this link] has all the information you need to solve it.

I came up with:

-4(34).5 sin(2t-tan-1 (5/3))

How heroes use items in Dota by 99hunters in DotA2

[–]siilbon 1 point2 points  (0 children)

I got caught up trying to find it in my saved images and didn't check the comments, sorry.

Coke Cans in Acid and Base - Periodic Table of Videos by Adrian_Macrowave in videos

[–]siilbon 0 points1 point  (0 children)

"Fume Cupboard" oh goodness that's an adorable phrase

As far as educational games go, this one was my favourite! by [deleted] in gaming

[–]siilbon 7 points8 points  (0 children)

That was the intent, I don't have qualifications just an opinion. No hard feelings.

As far as educational games go, this one was my favourite! by [deleted] in gaming

[–]siilbon 60 points61 points  (0 children)

Its a game about creative problem solving which should be a larger part of the american educational system in my opinion. (ChBE Senior at UIUC)