Science & Mathematics - 21 January 2007

2007-01-21 10:44:55 · 1 answers · asked by MTz 1 in Mathematics

2007-01-21 10:44:41 · 8 answers · asked by Sha 1 in Engineering

I'm not talking about imagination. You know how when you close your eyes you see a mixture of different colors and little empty dots flying around? And when you shine light you see the color red.

Can the blind/color-blind people see that? Or is it always pitch black? Please answer serioulsy.

2007-01-21 10:44:31 · 7 answers · asked by meh 2 in Biology

Solve for b. a = 1/2bcsquared

The length of one of the equal legs of an isosceles triangle is 8 cm less than 4 times the length of the base. If the perimeter is 29 cm, find the length of one of the equal legs.

Solve. 8x – 11 = 2x + 1

2007-01-21 10:44:07 · 3 answers · asked by robpurpleblazekamp 2 in Mathematics

2007-01-21 10:41:01 · 4 answers · asked by Rimi M 1 in Chemistry

2007-01-21 10:40:30 · 5 answers · asked by ivorytowerboy 5 in Astronomy & Space

2007-01-21 10:40:11 · 9 answers · asked by anomymos 1 in Biology

any articles that u can find for me would be very heplful. thank you

2007-01-21 10:39:22 · 2 answers · asked by Ashley C 1 in Chemistry

2007-01-21 10:36:25 · 4 answers · asked by Anonymous in Zoology

I am struggling with a few algebra problems here. I would appreciate it if someone could help. These are multiple choice:

1. A line passing through (5, –6) and (–9, y) is perpendicular to a line with slope . Find the value of y.

A) 1 B) –4 C) –2 D) –1


2. Given f(x) = –x – 4, find f(a – 3).

A) a – 8 B) –a – 1 C) a – 1 D) –a – 7

3. Determine which two equations represent parallel lines.

(a) y = –9x + 4(b) y = 9x + 4(c) y = x + 4
(d) y = –9x + 5

2007-01-21 10:36:25 · 4 answers · asked by journeythroughlife85 2 in Mathematics

2007-01-21 10:34:34 · 20 answers · asked by Arcana I 3 in Astronomy & Space

During a cold winter, snow can provide a useful shelter material for animals and humans because of its low _______.

2007-01-21 10:34:19 · 6 answers · asked by Justin 6 in Weather

this is a triangle

2007-01-21 10:34:14 · 3 answers · asked by ccutestuff2001 2 in Mathematics

2007-01-21 10:33:20 · 6 answers · asked by bird 67 2 in Medicine

2007-01-21 10:32:58 · 3 answers · asked by drbeckerma 1 in Engineering

The simple and widely used method for determing approximate dates of crop maturity is termed ________.

2007-01-21 10:32:58 · 1 answers · asked by Justin 6 in Weather

Find the length of the median of the trapedzoid in terms of j:

The trapezoid looks kinda like a rhombus, with the top and bottom parallel; the upper right angle is 45 degrees; the lower left angle is 60 degrees; the left side of the trapedzoid is j and the bottom side of the trapezoid is j.

The answer is 3j plus j root 3 divided 4

How would you get this answer?

2007-01-21 10:32:41 · 4 answers · asked by Kate! 3 in Mathematics

2007-01-21 10:31:14 · 5 answers · asked by cris l 1 in Medicine

Part of the cause of the greenhouse effect is that atmosphere is nearly ________ to incoming solar radiation

2007-01-21 10:31:13 · 3 answers · asked by Justin 6 in Weather

what is the correct name for an up-side down t....is it called a T-sqaure??

2007-01-21 10:27:18 · 8 answers · asked by babybluesue4u 1 in Mathematics

what is 10 to the twentieth
times 32 to the twentieth times 32 to the twentieth?

im trtying to figure otu a number of combinations for something, and i dun gotta calculator big enough to do this on

2007-01-21 10:25:23 · 4 answers · asked by patdog 3 in Mathematics

graphing linear relations

2007-01-21 10:24:01 · 8 answers · asked by munch 1227 2 in Mathematics

2007-01-21 10:22:52 · 3 answers · asked by Daniel w 2 in Chemistry

Please answers quilky need answer fast.

2007-01-21 10:22:32 · 7 answers · asked by Josh 2 in Physics

In May I'm going on a field trip to Niagara Falls with my "advanced" Earth Science Class. I want to know ideas to raise some money. I'm already planning on doing a raffle with candy in baskets and a car wash with one of my friends. I probably need to raise $1200 so it will pay for the trip and I will have some extra spending money. I can't get a job so I wanted to get some new ideas. Thanks a bunch!

2007-01-21 10:22:14 · 4 answers · asked by =] 1 in Earth Sciences & Geology

(I) stands for bars

2007-01-21 10:22:05 · 16 answers · asked by rh 2 in Mathematics

Integrate: http://img.villagephotos.com/p/2006-10/1221148/1orig.JPG

I did long ÷ & completed the square for the denominator to get the integral: http://img.villagephotos.com/p/2006-10/1221148/2nd.JPG

I then used a regular u-substitution u = x + 2 & got:
http://img.villagephotos.com/p/2006-10/1221148/3rd.JPG

I did another substitution v = (u / √5) to get:
http://img.villagephotos.com/p/2006-10/1221148/4stuck.JPG

That's as far as I got. I thought I could then use the arctan formula, but I can't figure out how to manipulate the problem to get in the proper form to use arctan.
I tried trig substitution (build a triangle), but I got stuck with that too.

Did I even approach this problem the right way?

Any helpful input is greatly appreciated. Thank you for your time.

2007-01-21 10:21:04 · 3 answers · asked by PuzzledStudent 2 in Mathematics

Is it possible, or could it be possible in the future to freeze a sound or light wave?

2007-01-21 10:20:29 · 10 answers · asked by Anonymous in Physics

Find the distance from the midpoint of line segment AB to point C if
A (2,6) B (4,2) c (7,6)


i am a little confused here.

2007-01-21 10:18:24 · 1 answers · asked by FairestOfThemAll 2 in Geography

1)from Earth to the Sun?
2)from Earth to the Moon?
3)from Earth to Pluto?
4)from Earth to the nearest star(Alpha Centauri)?

2007-01-21 10:16:36 · 9 answers · asked by akwon 2 in Astronomy & Space