Science & Mathematics - 21 January 2007

2007-01-21 05:53:56 · 13 answers · asked by Arsenal rule 1 in Chemistry

how do do this problem. could you answer it step by step

the difference in two numbers is 7. two times the larger number,decreased by 3 times the smaller number, is 5. Find the two numbers.

the answer 5.3 and 3. is that right?

2007-01-21 05:53:32 · 7 answers · asked by Anonymous in Mathematics

2007-01-21 05:53:18 · 1 answers · asked by nhicky 1 in Biology

I have searched and found nothing! anybody who knows, please help!

2007-01-21 05:53:00 · 1 answers · asked by melomane 4 in Chemistry

Well, human hermaphrodites (called pseudohermaphrodites) do exist. It's rare, but it is out there. Fortunately I have not yet come across any :-)

So what then, does the obstetrician/midwife say when a hermaphrodite is born? You can't say "it's a boy" and you can't say "it's a girl"...I wonder if they cover this in school?

2007-01-21 05:52:12 · 1 answers · asked by The ~Muffin~ Man 6 in Biology

Equations: 3x-y+9=0
6x-2y-4=0
Please show your process. Thanks.

2007-01-21 05:51:15 · 3 answers · asked by kered628 3 in Mathematics

2007-01-21 05:51:11 · 3 answers · asked by zxgamerzx 1 in Earth Sciences & Geology

cilia

2007-01-21 05:50:47 · 3 answers · asked by =j 2 in Biology

On Most airlines carry on luggage can have a
Maximum width of 10in. with a maximum volume of 3840 cu. in. If the height of the luggage is2/3 the length, determine the dimensions of the largest piece of carry-on luggage. Use V=lwh...#2Problem:Yield right of way signs used in the US are trinangles. The area of a sign is 558 sq in. The height of the sign is about 5 inches less than its base. Determine the length of the base of a yield right of way sign. Please help solve and explain. The answer to #1 is W=10in. L=24in. H=16in. #2answer is 36in. Do not know how to solve or what formula to use.....help
Its not as easy as it appears...

2007-01-21 05:47:23 · 5 answers · asked by gail 1 in Mathematics

on using magnetic field the enviorment has magnetic effect will it cause stray effect on the automobile performance ?

2007-01-21 05:44:06 · 3 answers · asked by Anonymous in Engineering

2007-01-21 05:44:05 · 2 answers · asked by Mandy 1 in Chemistry

i just want to know

2007-01-21 05:42:26 · 4 answers · asked by Ramon P 2 in Mathematics

When I was breaking down some boxes recently, I snapped the tape and I could of sworn I saw a tiny blue spark. I did it again on another corner, then turned the light off and did it again. I saw sparks all three times. How can this be? I hope I didn't just stand up too quick?

2007-01-21 05:42:09 · 6 answers · asked by Boba Dub 1 in Physics

okay so they are two fraction probles i need them step by step


2x/3-5=negative 13



2x/7 = 4/5

2007-01-21 05:41:59 · 6 answers · asked by Anonymous in Mathematics

I have a data information like this...

http://img264.imageshack.us/my.php?image=datacopy1qf.jpg


Now, based upon these data information i have to answer couple of questions.

As you see , the data information has been given in a hapazard manner ....we need to organise these data sets before answering the questions .

How do i organise these data ?

should i make a table ? i am bit confused here....i am getting confused with whole lots of data.

how do i organise these data for answering questions on this data set ?

could you please give me some tips ?

Thank you

2007-01-21 05:40:52 · 1 answers · asked by sanko 1 in Mathematics

2007-01-21 05:40:35 · 1 answers · asked by Anonymous in Engineering

As in, after a night of drinking, why the diarreah in the morning? Everytime we go out for a night of heavy drinking, involving SHOTS and what not, everyone has to **** all day the next day! Why is that...since alcohol is a liquid...!

2007-01-21 05:39:53 · 5 answers · asked by Steve R 1 in Other - Science

the lilliputians marched 500 meters in the first 4 hours. for the next four hours their pace was three times faster. what was the total distance traveled by the lilliputians in 8 hours?

also

-1/3 1/2
----- = --------
2/1/3 x

2007-01-21 05:33:46 · 6 answers · asked by Brent S 1 in Mathematics

2007-01-21 05:31:38 · 1 answers · asked by Swan S 1 in Biology

ok here's the question, its one of the many questions im stuck on in a past paper ht gcse
a wax statue of a spaceman is on display in a museum...
wax models are to be sold in the museum shop..
the statue and the wax models are similar...

The height of the statue is 1.8m...
the height of the model is 15cm...
the area of the flag in the model is 10cm²...

A)calculate the area of the statue's flag..




the volume of the wax of the original statue is 172.8 litres.

B) calculate the volume of wax used to make the model.
give your answer in ml.




...thanks

2007-01-21 05:31:22 · 3 answers · asked by jenny 1 in Mathematics

2007-01-21 05:30:13 · 1 answers · asked by Swan S 1 in Biology

Ok. here's the problem

f(x)=x-6, h(x)=2x^3-6, g(x)= the square root of (x+6) --i didnt know how to type a square root sign.

Find the rule for the function f-h
-----
g

I dont know what "find the rule" means. I thought it meant plug in the values and simplify but when i put in the answer in my online homework it tells me i'm wrong. i dunno what to do so please help me out! Thanks

btw its supposed to be f-h all divided by g

2007-01-21 05:30:05 · 3 answers · asked by packerswes4 5 in Mathematics

Many directional terms are provided for the body. The anatomical position is the starting point for most descriptions. Why is it important to have a reference point such as the anatomical position? Hint: think of how you would precisely describe the various movements of your arm.

2007-01-21 05:29:28 · 3 answers · asked by Swan S 1 in Biology

Hi there!

We are building a robot at my university, as a part of a competition. One of the features it has to have is that, it should be able to detect black drums, as it passes by. So the robot will keep moving on its wheels, and when it detects a black drum (at about 10 cm on one side), it should stop and do something on it.

Our first obvious choice was to use a IR transmitter/detector circuit. But this isnt very straightforward, as black objects absorb IR, rather than reflecting it.

I would be glad if someone can tell me how this could be accomplished, and the circuit which we would require. This would help us 'greatly'.

Now our total budget for the robot is 150 dollars (it is the rule). So any pricey component wont do. So at max, we can afford a sensor which is 20 dollars (we need two of these, one is for detecting the drum's height, which is another task)

Thanks!

2007-01-21 05:28:34 · 1 answers · asked by SHREYAS 1 in Engineering

could u show your work please

2007-01-21 05:28:20 · 11 answers · asked by Ramon P 2 in Mathematics

In how many ways can the three people be chosen. Subsequently, one of the men and women marry each other. The rules state that a married couple must not both be selected. In how many ways can the three people be chosen now.

2007-01-21 05:27:03 · 2 answers · asked by jasonball12 1 in Mathematics

2007-01-21 05:26:24 · 9 answers · asked by pamgissa 3 in Other - Science

Suppose we have 2 rigid rods, immensely long, with absolutely no elasticity. If we hold the rods
so that they cross a few meters in front of us at some point A. Now slowly move them
towards a parallel direction, the intersection point, P of the 2 rods will move away from us at an
ever-increasing rate.

The intersection point P will surpass the speed of light apparently, but why?

2007-01-21 05:26:14 · 4 answers · asked by sh 1 in Physics

My book says that there is a sphere with radius R. We are to find the maximum Volume of the Right Circular Cylinder inscribed inside of the sphere. This is all it says, not numbers, nothing else.

2007-01-21 05:25:57 · 2 answers · asked by burgerbabe84 2 in Mathematics

2007-01-21 05:25:37 · 4 answers · asked by Anonymous in Engineering