Science & Mathematics - 29 November 2007

2007-11-29 13:05:32 · 1 answers · asked by Jordan R 1 in Mathematics

37. subtract 1pt 9 oz, 1 pt, and 2 pt 5 oz from 3 qt 13 oz. simplify the final answer.

38. evaluate 1/36 + (-5/6) -(-1/2)

29. dave invested $ 18,500 in a time deposit. What interest will he earn for 3 years of the simple interest rate is 5.75%

30. the natural gas cost of a business increased from $ 101,000 one year to $ 146,500 the next. To the nearest whole percent , what was the rate of increase?


39. evaluate -3.4 x (-1.4) -(-7.9) + 0.062

22. a new car depreciates an average of 22.5% in its first year of use. If the car was worth $ 24,136 when it was new, what will the car be worth after1 year

2007-11-29 13:05:24 · 1 answers · asked by Anonymous in Mathematics

when a magnetic is inserted into a coil, does it matter if its North pole of the magnetic or south pole or will the current oppose the magnet ether way?

2007-11-29 13:04:37 · 1 answers · asked by mr.christie 3 in Physics

The population of Indonesia was 191,256,000 in 1990 and was growing at a rate of 1.9% per year. Predict the population, to the nearest hundred thousand of Indonesia in 2010.

2007-11-29 13:03:50 · 2 answers · asked by MusicLuvr 5 in Mathematics

A 30-cm long string, with one end clamped and the other free to move transversely, is vibrating in its second harmonic. The wavelength of the constituent traveling waves is:

2007-11-29 13:03:44 · 1 answers · asked by Chris N 1 in Physics

Is this coincidental or some type of paranormal activity? A few weeks ago, my cat suddenly fell ill. He is an indoor cat. He went missing one night, and I went out to the backyard to look for him. Our pool has been in disrepair for some time and there is no electricity out there. As I was standing in the yard calling his name, the pool light under water pulsated on and off 2 times. The cat was not out there, I found him later in the house. He died the next day. Is that weird or what?? I am a totally normal person..this was very spooky to me!

2007-11-29 13:03:05 · 10 answers · asked by Fern 1 in Paranormal Phenomena

_ _ _ _ _ _ _ _ _ _ _ _ _ help! Please There goes the words that i need help on

2007-11-29 13:02:39 · 2 answers · asked by delon b 1 in Physics

one day i came outside and i saw a raccoon in the morning. i told my friend about it and she said that the raccoon had rabies. Is this true or false. my question is if I see a raccoon in the morning does it mean it has rabies?

2007-11-29 13:02:21 · 7 answers · asked by falade 1 in Zoology

Also, why is carbon so versatile?

2007-11-29 13:02:14 · 9 answers · asked by Anonymous in Biology

A salesman packs dog biscuits in boxes containing 16,17,23, or 24 pounds each. He will not sell them in any other sizes or split a box. A customer wants exactly 100 pounds of the biscuits. Can the salesman fill the order ? If he can, how will he fill it? The salesman has as many of each size box as he might need.
Please explain how you did it. thanks

2007-11-29 13:02:11 · 1 answers · asked by matthew p 2 in Mathematics

2007-11-29 13:02:08 · 5 answers · asked by Samuel Park 2 in Medicine

i have a huge test that i am trying to prepare for. However there are many problems about Vectors, which i do not get al all. i will give you just a few example of the different kinds of questions, if anyone know how to do any of these please help.. thanks a billion.

oh by the way this isn't my homework its just practice problems that i'd like to learn how to do before my test comes. thanks again.

1.A quantity with both a magnitude and a direction is called a
Scalar
Vector
Number
Unit


2. Vector A has a magnitude of 9 and points due north, vector B has a magnitude of 3 and points due north, and vector C has a magnitude of 5 and points due west. What is the magnitude of the resultant vector A+B+C?
20
13
15
11


3. The components of vectors are considered
Vectors
Scalars
Units
Numbers


4. A person walks 3.0 km northeast, then 1.0 km east, and finally 4.0 km south. Calculate the distance from the starting point to the finishing point of the walk

2007-11-29 13:01:26 · 1 answers · asked by Anonymous in Physics

The directions are: Solve the quation for solutions in the interval [0 degrees, 360 degrees)

The equation is: tanx = 2sinx

How would you go about solving this?

2007-11-29 13:00:45 · 2 answers · asked by Anonymous in Mathematics

The function below crosses the x-axis once

y = x2 - 7x + 7

true or false


all help is appreciated :)

2007-11-29 13:00:31 · 4 answers · asked by dumbhoe 1 in Mathematics

why don't tap water, C2CH5Oh, HC2H3O2, NH4O, and NaCl conduct a lot of electricity?
also, what is an electrolyte?????

2007-11-29 12:59:27 · 5 answers · asked by Anonymous in Chemistry

Solve x^2 = -6 - 5x by factoring

2007-11-29 12:59:20 · 3 answers · asked by Anonymous in Mathematics

i'm brain dead ):

2007-11-29 12:56:34 · 4 answers · asked by irreplaceable 2 in Mathematics

A m1 = 4.00 kg block on a smooth tabletop is attached by a string to a hanging block of mass m2 = 2.50 kg, as shown in Figure 6-29. The blocks are released from rest and allowed to move freely. So m1 is on top of a table and m2 is hanging down from a string. What is acceleration and tension?

2007-11-29 12:55:39 · 2 answers · asked by Anonymous in Physics

When graphed, does function below crosses the x-axis twice?

2x^2 - 3x + 1

2007-11-29 12:48:59 · 3 answers · asked by emando16 2 in Mathematics

2007-11-29 12:48:05 · 2 answers · asked by cutiepie123 2 in Physics

i think the landing was faked. i have seen the evidence and both sides make good statements so based on pictures and all both sides are locked in a tie but my thing is if we went to the moon why have we not went back? they said the computer aboard the apollo was about the same technology used in todays calculator so if we went why have we not went back, especially since the technology is 50 times better since then. we keep putting up space shuttles to orbit the earth but for what? and last but not least in 2004 bush made a public speech in which he said we hope to go back to the moon in the next 17 years?huh if we have already been why wait so long? car makers improve on cars every year,plane builders and boat /yacht/super cargo ships also, even our space program we sent 4 rovers to mars and 2 were succesful and two failed but all reached their target why do we not speak of going to the moon again? and why has no other country attempted it? im asking a question i know cant be answered

2007-11-29 12:46:50 · 12 answers · asked by dmac 3 in Astronomy & Space

In class he was saying it as "ada." The sign looks weird, but how do you write it in regular English? How do you spell it?

2007-11-29 12:46:21 · 1 answers · asked by sobefobik 4 in Mathematics

PLease make the answer simple, not complex in order for me to understand it, thank u! =]
I also have another Q.....
What happens in term of the transfer of energy as heat when you hold a snowball in your hands?

2007-11-29 12:44:35 · 6 answers · asked by Anonymous in Chemistry

I am doing this for my sciene fair and I need to know how to make it and what materials you need! Please help!!!!!!! I also need a hypothesis BY 2MARROW!!!!!!! I m like desprate. HELP ME!!!!

2007-11-29 12:44:07 · 2 answers · asked by Anonymous in Botany

Well the problem have to do with factorials

The expression n! is read "n factorial": and means n(n-1)(n-2)(n-3)...Thus, 6! meanse 6*5*4*3*2*1=720 and 10! means 10*9*8*7*6*5*4*3*2*1=3,628,800.

Notice that 6! ends with one digit of zero and 10! ends with 2 digits of 0. How many digits of 0 does 500! end with.

plz help ><

2007-11-29 12:42:24 · 2 answers · asked by Botato 4 in Mathematics

Did you know that in the 1600s in England Christmas was banned for 13 years!!!! Anyone caught celebrating it was arrested!!

Also!
England has only seen 7 white Christmas in the 20th Century!!
(Meaning if one snow flake falls on the weather center!!)

link:
http://www.woodlands-junior.kent.sch.uk/customs/Xmas/facts.html

2007-11-29 12:41:22 · 4 answers · asked by ♥Anna♥ 3 in Astronomy & Space

How would you simplify the equation: 3(b+2)+2x
and c+2(d-5c)?
I was practincing simplifying equations like this and was doing fine until i got to these. the back of the book where the answers are says that the answer for the 1st one is 5b+6 but my mom and i both got confused with it so please help!~
:-(

2007-11-29 12:40:46 · 6 answers · asked by Hαír Pεace Šmûrƒ Pεαce 7 in Mathematics

2007-11-29 12:40:38 · 3 answers · asked by Anonymous in Mathematics

Jose has a total of seventeen quarters and dimes. He has nine more dimes than quarters. how much money does he have. i know you have to use let statements, but im really confused. please help!

2007-11-29 12:40:18 · 1 answers · asked by Anonymous in Mathematics

WILL REWARD 10 POINTS A.S.A.P

2007-11-29 12:39:07 · 3 answers · asked by Anonymous in Mathematics