Science & Mathematics - 20 December 2007

arrange from smallest to largest
2.05, 25/10,2.0513,2.059,251/100,2.0515,2.052,2.051

# 72 Lula wants to round 76.24491 to the nearest hundredth. She first rounds 76.24491 to76.245 and then rounds 76.245 to 76.25 and claims this is the final answer. what is wrong with this approach?

2007-12-20 08:03:18 · 2 answers · asked by Flyyasever 3 in Mathematics

2007-12-20 08:02:59 · 2 answers · asked by Guy 3 in Mathematics

iam very much interest in astronamy,i want to see all planets clearly and other objects too,so which type of telescope i prefer? reflect or refracter---in this 2type which is more better to use long years? i can spent till $800 ,so pls help me to choose better telescope and company for sky watching...mail me your suggesions ,thank you from-- Rahul babu k

2007-12-20 08:01:49 · 6 answers · asked by tudu 1 in Astronomy & Space

2007-12-20 07:59:30 · 2 answers · asked by Anonymous in Astronomy & Space

1. What is the inverse of the equation y = 5x + 1?

2. In the ordered pair (x, y), the value of y is a member of the ___________.

3. What is the slope of the line for the equation x = 5?

4. Put the equation in slope-intercept form and identify the slope of the line. 9x + 6y = 3

5. a) What is the slope of the line through the points (5, 2) and (5, -3)?

b) Describe the line through these points.

6. Change the given equation into slope-intercept form. 3x + 4y = 12

7. What is the value of g[f(3)] for the functions f(x) = 3x – 5 and g(x) = x + 1?

8. Given the domain values { -2, 0, 2 }, find the range values for the function y = 3x + 2.

9. What is the value of f(6) for the function f(x) = 3x – 5?

2007-12-20 07:58:50 · 5 answers · asked by Anonymous in Mathematics

2007-12-20 07:53:06 · 6 answers · asked by Anonymous in Physics

and yes, i do mean GOATS and not GHOSTS

2007-12-20 07:51:38 · 6 answers · asked by :P 3 in Zoology

size
color
axis of orientation
shape

2007-12-20 07:51:16 · 2 answers · asked by Abigail L 2 in Earth Sciences & Geology

2007-12-20 07:45:24 · 4 answers · asked by Danielle M 2 in Weather

The volume of one mole of an ideal gas, at 202kPa and 273 K, is?

I've been trying to use the ideal gas law, but I just can't get what I need. My teacher said that the answer is 11.2 L, but I can't come to that. Any help please?

2007-12-20 07:43:22 · 6 answers · asked by Anonymous in Chemistry

2007-12-20 07:42:31 · 3 answers · asked by Anonymous in Mathematics

please help and show work so i can understand it please!!!

2007-12-20 07:40:26 · 8 answers · asked by Anonymous in Mathematics

I need help with finding the rate/order of reaction. The question I need help with is:
Rate expression is 2SO2 + O ---> 2SO3
rate = k[SO2]^2[O]
What is the overall order of reaction?

It would be excellent if someone could explain HOW to find the overall order of reaction so I can complete the rest of the questions I have.

2007-12-20 07:40:11 · 3 answers · asked by Anonymous in Chemistry

give me the answer how the big bang of earth occured

2007-12-20 07:40:04 · 11 answers · asked by aaditya 1 in Astronomy & Space

2007-12-20 07:39:58 · 4 answers · asked by jaykirs36 1 in Astronomy & Space

IF 0x0=0 then the "big bang theroy" is mathmatically IMPOSSIBLE...without a "creator"

2007-12-20 07:39:33 · 8 answers · asked by Archie P 1 in Earth Sciences & Geology

By how much is the energy stored in an ideal spring increased when it is stretch is increased from 8 cm to 16cm?

2007-12-20 07:33:13 · 5 answers · asked by flipnv86@sbcglobal.net 1 in Physics

Is that one spider observing you or just going about its own business?

2007-12-20 07:31:50 · 3 answers · asked by TatsuJin 4 in Zoology

2007-12-20 07:30:15 · 15 answers · asked by Archie P 1 in Astronomy & Space

2007-12-20 07:28:59 · 9 answers · asked by Anonymous in Mathematics

Please please help me. I would really appreciate it.
Thanks in advance.

1.) y squared + 21- 72

2.) c squared + 16c-80

3.) d squared + 13d +40

4.) y squared + 21y -72

5.) 3a squared +10a +7

6.) 5 n squared + 4n -12

7.) 6 y squared + 109y +18

8.)14 n squared + 17n -18

9.) 2x squared - 5xy - 3y squared

10.) 8 a squared + 22ab +15 b squared

11.) 6 x squared + 5x squared y squared + y (to the fourth power)

2007-12-20 07:19:18 · 4 answers · asked by Serena 1 in Mathematics

I have the following equations of motion:

mx'' = 0
my'' = 0
mz'' = qE

How do I find the solutions to these for a particle which starts from the origin at t=0 with an initial velocity v=(v_x + v_y + v_z) ? (v is a vector, x,y,z components)

2007-12-20 07:07:09 · 1 answers · asked by Anonymous in Physics

just wondering

2007-12-20 07:04:52 · 2 answers · asked by Anonymous in Weather

2007-12-20 07:04:35 · 2 answers · asked by diego j 2 in Astronomy & Space

Spaceship A is traveling at 0.3c, and spaceship B is traveling at 0.4 c. Spaceship A sends a signal of frequency 1000 Hz. What frequency does spaceship B detect?

I had this on my final yesterday. This is what I tried:

I solved for their relative speed to each other, finding it to be 0.8c (I think, I can't quite remember, and I don't have my calculator nearby). Then I think I just plug that number into the relativistic Doppler effect equation. Can someone let me know how to solve this problem, or if I am correct. Thanks!

2007-12-20 07:00:27 · 2 answers · asked by Anonymous in Physics

2007-12-20 06:59:16 · 9 answers · asked by Mr MOJO123 2 in Astronomy & Space

and wher to gat any information

2007-12-20 06:45:39 · 15 answers · asked by tracey f 1 in Physics

Although it might be impossible to detremine, did the Big Bang have a precise time, eg 10.33 PM on 25 October 13,709,90.. BC.... or did the extreme conditions in the early universe somehow smudge time

2007-12-20 06:44:56 · 9 answers · asked by Anonymous in Astronomy & Space

please no numerical solutions

2007-12-20 06:44:38 · 4 answers · asked by jundishapur 1 in Mathematics

thnxs 4 answering

2007-12-20 06:43:08 · 3 answers · asked by Lee Lee 1 in Earth Sciences & Geology