Science & Mathematics - 18 December 2007

e.g. If 31hours 36 minutes is 31.60 expressed as a decimal (is that right?!), then what is 24hours 24minutes as a decimal? And what is 4hours 52minutes? A simple sum so I can work it out would be great!!

2007-12-18 07:48:16 · 7 answers · asked by Anonymous in Mathematics

list in order

2007-12-18 07:42:16 · 18 answers · asked by homie21 1 in Mathematics

abiotic things such as the 3 cycles how do these things affect the platypus

2007-12-18 07:39:22 · 1 answers · asked by Anonymous in Zoology

between jan1-june30

2007-12-18 07:39:08 · 6 answers · asked by Est.1992 6 in Mathematics

Have u ever experienced any paranormal activity?

2007-12-18 07:38:56 · 41 answers · asked by Anonymous in Paranormal Phenomena

John and Sam have to complete 5 home repair jobs this week. If John works by himself, he can do the repairs in 9 days. With Sam helping him, they completed them in 4 days. How long would it take Sam to complete the repairs alone?

2007-12-18 07:38:54 · 3 answers · asked by Anonymous in Mathematics

Want to reduce the number of accounts and service charges that come with them.
There is currently a 30amp, a 100amp and two 400amp services for the building but we don't need that kind of capacity. We are using an average of 34,000kWh per month or a maximum of 48,000kWh. Any clues?

2007-12-18 07:36:48 · 6 answers · asked by Andrew P 1 in Engineering

please help essay do on friday this 12/21/07

2007-12-18 07:34:16 · 4 answers · asked by ~*SpAnKy*~ 1 in Biology

I was just in my living room watchin night time telly! When the whole sky turned like a Greeny colour but it was sooo bright that it looked like daylight again! it like moved across the sky and lasted about 5 seconds!!

It actually freaked me out lol I've looked on the local news but theres nothing about it!! My brother who missed it said it could of just been one of those Really BIG illegal fireworks!! (but there was no BANG!)

Does anyone know what it could of been???

=)

2007-12-18 07:33:45 · 5 answers · asked by Anonymous in Astronomy & Space

what would a food web look like for the platypus

2007-12-18 07:33:43 · 4 answers · asked by Tori 5 in Zoology

So the question goes like this:
A TV camera at ground level is filming the liftoff of a space shuttle that is rising vertically according to the position eqn: s(t)=50t^2, where s is measured in feet and t is measured in seconds. The camera is 2000 feet from the launch pad.

Find the velocity of the space shuttle when it is 5000ft high.
[[I did this already, and I got 1000 ft/s. I know that it is right.]]

Find the rate of change in the angle of elevation of the camera when the space shuttle is 5000 ft. high.
[[I can't figure this one out for the life of me. I think it has something to do with inverse tangent, and with the previous anwser (1000 ft/sec).]]

If you can solve this, you're my hero and a freaking genius!!

2007-12-18 07:33:28 · 5 answers · asked by hp_ddocd 1 in Mathematics

9x^2-48x+64

2007-12-18 07:32:59 · 6 answers · asked by Anonymous in Mathematics

If you are visual, there are three right triangles, each with at least one variable. I'm supposed to find those variables.

I will start at the BOTTOM LEFT CORNER where the right triangle is, move up (giving the length of that line), then down the hypotenuse (giving the length), and across the bottom line, doing the same thing.

The angle given is between the hypotenuse and adjacent line (although the third triangle has no angle)

Please help!

1. Triangle 1 (45 Degrees):

Side 1: A

Side 2: 3 root(2)

Side 3: B

-------

Triangle 2 (30 Degrees):

Side 1: 5

Side 2 (H): C

Side 3: B


---------------

Triangle 3:

Side 1: 5

Side 2: 13

Side 3: B

2007-12-18 07:32:43 · 1 answers · asked by zenmaster4 2 in Mathematics

what kind of organism is it.
like is it a consumer or producer, predator or prey, carnivore; herbivore, omnivore, general characteristics

2007-12-18 07:32:40 · 3 answers · asked by Tori 5 in Zoology

T H I S
I S
_______
* F * *
* * U *
___________
* * N * *

2007-12-18 07:30:21 · 1 answers · asked by swapnil marothi 1 in Mathematics

2007-12-18 07:28:59 · 16 answers · asked by Kate E 1 in Zoology

In triangle ABC, AN and BM are medians. If AC + BC = 24, then which is CM + CN?

http://i234.photobucket.com/albums/ee155/dramaqueen12572/triangle.jpg

2007-12-18 07:28:10 · 2 answers · asked by Anonymous in Mathematics

2007-12-18 07:27:19 · 13 answers · asked by Anonymous in Physics

It has to be between earth, Fire, Wind, and Water. And you can't say that they all have there strengths. You have to choose just one; and give an explanation to your answer.

I believe its fire- I think its utter destruction.

2007-12-18 07:26:34 · 5 answers · asked by lil joker 2 in Earth Sciences & Geology

2007-12-18 07:25:25 · 3 answers · asked by Anonymous in Geography

Factor 4x^2 - 20x + 25. Select the answer.

2x-5
(2x-5)^2
(2x+5)^2
2x+5
none of these

2007-12-18 07:25:23 · 4 answers · asked by Sam o 1 in Mathematics

You can determine angles of a triangle if the ratios of the sides are given, such as in the format of A : B : C. right?

A*180/(A+B+C), B*180/(A+B+C), C*180/(A+B+C)

So let's say I've got a right triangle with the side lengths of 3, 4 and 5. I guess I have to convert these lengths to ratios. This is where I'm confused. Do I use side length 3 as the reference ratio to the other sides? Meaning 3/3, 4/3, and 5/3? But those don't work when I try to multiply the ratios back into angles because none of them equal to 90, which I know exists because its a right triangle.

2007-12-18 07:22:17 · 5 answers · asked by Anonymous in Mathematics

Currently i am stuck with a secreterial job ($12/hour ) for the payment for my car and insurance and my 2 credit cards which are in collections . My plan is to use the first few pay checks to start to payy off my credit cards ( clear up my credit soon )

and then pay off my car and insurance amounts. I graduated with a degree in electrical and computer engineering . I am planning to save up enough money so that in 1-2 months I will have enough money saved up and then I will apply for entry level electrical engineering jobs . I think I might have to quit my current job to start going for interviews because if not there will be tension between the employer and me I think .

Also I am working another part-time job just to make ends meet.

I am thinking once i get a job as an entry level electrical engineer , anywhere near by , I can use the saved up money to move to the new place and start my life there.
What do you think ?

2007-12-18 07:21:49 · 13 answers · asked by Anonymous in Engineering

You notice that the ping-pong ball sinks into the water as it falls.

Explain.

2007-12-18 07:21:49 · 8 answers · asked by Anonymous in Physics

2007-12-18 07:21:35 · 3 answers · asked by aisha1230 3 in Mathematics

I cant seem to figure out what blanks go with which, please help!

-regeneration
-chromosome
-mitosis
-chromatin
-budding
-binary fission


~________ is used for the growth and repair of tissues
~In mitosis, each ______ replicates itself
~The process where an organism can grow new body parts is called ________
~Bacteria divide and produce new bacterial cells by the process of ________
~_______ describes DNA in the "resting state", when it is long, then and stringy.
~When a parent organism develops a growth on its outer surface and that growth breaks off to form a new organism it is called ___________


Thankess!

2007-12-18 07:17:29 · 7 answers · asked by Anonymous in Biology

5. The bottom and top of a box are rectangles twice as long as they are wide. Find the volume of the box if it is 4 ft high and has a total surface area of 220 ft^2. Which equation can you use to solve this problem?

4w^2 + 8w = 220

4w^2 –16w = 220

4w^2 + 24w = 220

4w^2 –24w = 220


PLEASE ANSWER

2007-12-18 07:16:24 · 3 answers · asked by Anonymous in Mathematics

1. 4x - 6 = x - 5

2. 4x - 8 = x + 3

2007-12-18 07:16:04 · 5 answers · asked by xx_illmakeyabelieve_xx 1 in Mathematics

Do your research.

2007-12-18 07:15:23 · 8 answers · asked by seemorebetter 5 in Geography

also 5/3x^3+8/3x^2-4/3x

x^5-4x^4-2x^3+4x^2+x

all in rational root theorum

2007-12-18 07:14:16 · 2 answers · asked by Anonymous in Mathematics