Need Help on Math Question

pi * radius squared * cylinder height. I assume you mean it is diameter 3 feet, not the other way around?

 

which is the height and which is the diameter?

 

God help us, you are not trying to figure out the bore and stroke of an ENGINE, I hope???

 

area of the base*height = (pi)r^2(h)

 

In cubic feet... I want to see that machine!

 

Could be a big engine he's building.
Here's an engine with 6 to 14 pistons in an in-line design, each cylinder 38″ and the stroke is 98″.
The engine weighs in at 2,300 tons and is capable of delivering 109,000 horsepower.
It is a turbocharged two-stroke diesel used in large cargo ships.
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Yep, that's the first engine that sprang to mind. Have more pictures of its construction somewhere, but will be buggered if I know where I put 'em...

 

We have them on here somewhere. It looks like a modular engine used for supertankers.

 

wow, the new F600120, can't wait to see the belt change on that one.

 

Some photos here: http://people.bath.ac.uk/ccsshb/12cyl/
5,608,312 lb/ft of torque. Damn. I always want to round it off, and just say, "5.6 million lb/ft of torque!", but that would be dismissing the other 8,312 lb/ft as irrelevant.

 

Oh bother - have I again hijacked yet another man's thread?

Anyway - on the original question: If you follow the formula (PI x R squared x Length) and both dimensions are in feet, then the answer will be in cubic feet of course.

 

Either 2.9376 Hogshead (US) or approximately 18422.4 Jiggers, depending on which of the above measurements are the bore.

 

Wait....a.....minute.....is Jeffie trying to get us to do his homework?

Jeffie, tha'ts just NOT right.

Go copy offa Susie's homework like we used to.

 

The original request for help was satisfied, by you as well as others, before any hijacking took place. Jeff just needs to plug in the numbers.
Volume = area x depth.
Area of a circle = pi*r²
Don't forget to put "cubic feet", or "cu. ft.", or "ft.³" after the numerical value in your answer (and choose only one of them - not "cu. ft.³").

 

A Ferrari leaves Maranello heading west towards Monaco at 200 kph. A Lamborghini leaves Monaco at the same time heading east towards Sant Agata at 180 kph. how many liters of oil will be consumed?

 

Mobil 1 or Olive oil at lunch?

 

see! it *was* a trick question!

 

Alright, my turn for math help.
__________________________________________________ __________________________________
Ramiro invests in a CD (certificate of deposit) that pays 5% compounded quarterly for 7 years.

What is the effective annual yield of the CD? ___%

What is the overall return after 7 years? ___%

__________________________________________________ __________________________________

How are you supposed to find the annual yield if there is no investment number?

Another question:

How many compounding periods are there when it says semi-monthly?

TIA!

 

Never mind this one, I found the answer. It's 24, if anyone is wondering

 

yield isn't effected by the amt invested.

semi-monthly = 24 times a year (bi-weekly = 26 times a year). who knew?

 

So how am I supposed to find the annual yield, even if no amount is invested? Is there a specific formula?

 

just pick a number (use $100 or $1000, etc to keep the math easy)

 

Alright, I'll try that out, basically all the effective annual yield questions are screwing me over.

Figured out what I was doing wrong. I had it correct originally, was just inputting it into the homework system wrong, making me miss it. Thanks Chas!

Once again, I am stumped. I was doing the first part correct, 2nd part nope.

Ramiro invests in a CD (certificate of deposit) that pays 5% compounded quarterly for 7 years.

What is the effective annual yield of the CD? ___%=(1+.05/4)^(4)-1=5.01% CORRECT

What is the overall return after 7 years? ___%=(1+.05/__?_)^(__?__)-1=... would it be (1+.05/4)^(2555)-1?