Science & Mathematics - 7 November 2007

i really need this explanation cause i dont know it and its on my HW thats worth lots of points i thought i had another day to study but i guess not PLZ HELP!!!!!!!!!!!!!

2007-11-07 11:28:31 · 1 answers · asked by Anonymous in Chemistry

National expenditures for health care (in billions of dollars) have risen dramatically since 1960 when the total was $26.7 billion. According to data from the US dept of HHS, the rate of change of expenditures can be modeled by h'(x)= 0.0126t^2+1.532t-5.08, where t=0 represents 1960. Find the function that models the expenditures for health care using the initial condition given to solve for c.

2007-11-07 11:28:26 · 1 answers · asked by jessiebabie824 2 in Mathematics

2007-11-07 11:28:03 · 3 answers · asked by tootybug31 1 in Geography

i am trying to write an essay and i dont know how some of the people like michael faraday, lisa meichner,marie ann lavoisier, james maxwell, and emilie du chatelet helped albert einstein with his creations. i have to write this paper by tomorrow and i am freaking out. please someone please help me and please quick!!!!!! thanks everyone.

2007-11-07 11:27:30 · 2 answers · asked by lilyellowpimp 2 in Physics

one vertex of a square and the midpoints of the two sides not containing this vertex are vertices of a triangle. if the area of the square is 16, what is the area of the triangle?

2007-11-07 11:26:05 · 5 answers · asked by kkga_1 1 in Mathematics

Does anyone know about Trigonometric Identities? I have 16 I have to do for pre-calc, and no idea how to do it. I get the theory-- replace the parts until the sides match up.... But, I need help.

2007-11-07 11:25:21 · 1 answers · asked by Doesdeathbecomeme? 1 in Mathematics

1. What distance does electromagnetic radiation travel in 50.0 mu_s?

2007-11-07 11:22:09 · 1 answers · asked by Anonymous in Chemistry

2007-11-07 11:20:30 · 1 answers · asked by mlmwk 1 in Earth Sciences & Geology

Hello. I have brown eyes, but my mother has blue eyes.
Does that mean i have a blue eye gene?

2007-11-07 11:15:36 · 6 answers · asked by Anonymous in Biology

2007-11-07 11:15:22 · 1 answers · asked by Anonymous in Mathematics

for a project in class

2007-11-07 11:15:07 · 1 answers · asked by m r 1 in Earth Sciences & Geology

2007-11-07 11:12:55 · 2 answers · asked by bookem 1 in Other - Science

what mass of sodium carbonate was contained in that solution?
help, please? it would be great if you could explain it to me!!
thanks
x

2007-11-07 11:10:18 · 1 answers · asked by Sara R 2 in Chemistry

how to put this in your own words; the vertical axis on a coordinate plane please answer fast asap

2007-11-07 11:04:58 · 4 answers · asked by KIKI305 1 in Mathematics

2007-11-07 11:04:37 · 3 answers · asked by Anonymous in Chemistry

I can't remember what the word begin with p and it is a long word. May pinniculus or something.

2007-11-07 11:02:46 · 4 answers · asked by ☃FrostyGal♪♬♪ 4 in Biology

2007-11-07 11:01:02 · 2 answers · asked by George S 1 in Biology

Okay. I have 127.2 grams of C7H5(NO2)3 or 0.5600 mol C7H5(NO2)3 or 3.37x10^23 particles of C7H5(NO2)3. I need to somehow determine the number of N atoms. How could I go about doing so? I assume I need to multiply one of the amounts by a fraction or something but I don't know the formula.

2007-11-07 11:00:12 · 1 answers · asked by Brookeachu. 2 in Chemistry

2007-11-07 10:58:31 · 36 answers · asked by Anonymous in Astronomy & Space

2007-11-07 10:56:17 · 32 answers · asked by shootingstarsgirl 2 in Zoology

is a project at school.... it says to identify manufacturer of material.... i this case (rebar)

2007-11-07 10:51:43 · 1 answers · asked by esquivelq 1 in Engineering

"I believe in God."

Science guy: "Nope no God, there's no proof so there is no God. I have a Ph.D."

"Have you ever...?"

Science guy: "What? This is astronomy & science section, go to Entertainment! Don't bother us, we are during important research in Y!A."

2007-11-07 10:51:26 · 17 answers · asked by ? 2 in Astronomy & Space

2007-11-07 10:47:30 · 3 answers · asked by ohhenryoo7 1 in Earth Sciences & Geology

2007-11-07 10:44:03 · 8 answers · asked by Anonymous in Astronomy & Space

2007-11-07 10:41:57 · 2 answers · asked by crazygirl 2 in Engineering

Calculate the pH of each of the solutions and the change in pH to 0.01 pH units caused by adding 10.0 mL of 2.73-M HCl to 550. mL of each of the following solutions.

Change is defined as final minus initial, so if the pH drops upon mixing the change is negative.

a) water

pH before mixing=7
pH after mixing= ?

The pH after adding an acid I know is going to be <7. I am just having trouble calculating it.

2007-11-07 10:39:15 · 1 answers · asked by Anonymous in Chemistry

1. x^2=5x^2=6x

2. x^3+1

3. 64x^3-27

4. 2x^3-8x^2+8x

5. x^2-2x-8

6. 10x^2+5x-5

7. 2x^3-7x^2+6x

8. 250x^4-54x

help me with these questions

2007-11-07 10:38:52 · 1 answers · asked by Anonymous in Mathematics

Personally, I am almost adament that their is life out their and I believe it is only a matter of time before we find it. I read a report today about the discovery of a new solar system not unlike our own which could potentially support life. I think it is only a matter of advancement of technology and most likely I believe there will be a discovery of some kind of life before the century is up.

I would just like your views on the topic

p.s. I would like to add that when life is found the religious implications will be prevalent.

2007-11-07 10:37:50 · 11 answers · asked by Anonymous in Astronomy & Space

0.03Lor .00503L

2007-11-07 10:37:34 · 1 answers · asked by rachel 1 in Physics

my chem teacher told me that because battery acid is an acid and drano is a base that if you mix them it is drinkable

2007-11-07 10:36:11 · 4 answers · asked by jrobuck13 2 in Chemistry