Q:You can sell 800 vacuums for $100 each. For every one dollar you increase you can sell two fewer vacuums. For example, if you charge $103 you can sell 794= 800-2(3) vacuum cleaners. If you charge 98, you could sell 804= 800 + 2(2) vacuum cleaners. How much should you charge to maximize revenue?

You are on the right track. We can find a linear equation to predict the number of vacuums that will be sold at any given price. At $100 it is 800. At $103, it is 794. Think of this data as two points on a line. The points are (100,800) and (103,794). Find the equation of the line. y=1000-2x. The Revenue generated is the number sold * the price. y is the number sold and x is the price. R=x*y=x*(1000-2x) R(x)=1000x-2x? R'(x)=1000-4x The critical number is when R'=0 == 1000-4x=0 == x=250 So, it looks like we should charge $250 per vacuum. Is this really a maximum? R''(x)=-4. The Second Derivative Test tells us that our value is a maximum. This makes sense. The revenue function is a parabola that opens downward with a vertex at (250,125000), The price is $250 and the revenue is $125000.

Q:My old vacuum cleaner is slowing breaking down. I've been looking around at new vacuum cleaners and everyone talks about how good the Dyson vacuum is. Is it worth it?

I have a Dyson Animal. I just bought it 3 months ago. I have two very hairy dogs and it does wonders on the carpet! When I got it I vacuumed the carpet with the old vacuum and then I did it again right away with the Dyson and you wouldn't believe how much stuff that dyson picked up. I love love love it. Best investment ever for me.

Q:I want it to be easy to use.

Call me crazy, but unless your husband is way different than mine, I don't think he will be too thrilled about a vacuum for his birthday.

Q:It sounds a bit odd but I'm dead serious. Whenever I look at my vacuum I have a bizarre urge to make love to it. But the other day when I tried it really hurt when it suctioned my dick so I kind of want to stop, but for some reason no matter what I do my vacuum won't look any less sexy. What should I do?

They say it beats as it sweeps as it cleans perhaps that is what turns you on

Q:How many vacuum cleaners do you have?

3...and two additional for outside = 5

Q:They look the same to me besides color.What am i missing?

You're not missing anything, besides the color and a hand held turbine head, they are exactly the same. The Dyson Animal is just a advertising scheme to make you believe it is well suited for animals!! The Dyson vacuum cleaners are extremely over rated and lacks in performance (especially in hepa filtration, and simply its ability to retaine dirt).

Q:Are there any full-size vaccum cleaners that are battery operated, rather than dragging around that long cord?

There are such vacuum cleaners generally used for gardens or lawns.

Q:How come Hulk Hogan never got an endorsement deal with Brother Vacuum Cleaners, Brother?

He never cleans his house. His home is filthy, littered with half eaten fast food, used condoms, and *** fritters everywhere.

Q:What value does Voltage indicate for vacuum suction?

You need to explain this better, it makes no sense as it is. edit: no way to know exactly. Voltage alone tells you nothing. But the power used (in watts) could be a guide, if you have that number, in watts. 1400 mA-hour is a measure of the charge stored in the battery, so that is no help, as you need a time number to convert that to mA, which, with the voltage, can give you power in watts. My experience is that hand held vacuum cleaners are all very feeble.

Q:especially for philips brand vacuum cleaners

try it in Mock Kong ( may my spelling is wrong ).. near hong kong.... been once where u can find any thing .... it very cheap... there... buddy just try and write to me on this.... bye !!