Science & Mathematics - 17 July 2007

2007-07-17 09:29:56 · 6 answers · asked by Anonymous in Mathematics

Line 1 is parallel to line 2. If the slope of L1 is x/4, and the slope of L2 is (x+5)/6, find the value of x.

Okay, now most people say this is how the problem is solved....but what in the world did they do with the 6? By the looks of it, they dived the 4 by 4 to get rid of the x...but how did the 6 become 2?????


x/4=(x+5)/6
6x=(4x+20)
2x=20
x=10

2007-07-17 09:29:47 · 5 answers · asked by ChellBaby 1 in Mathematics

I've tried alooot of answers for this one, and am almost out of submits. Help please!

Find equations of both lines through the point (2,-3) that are tangent to the parabola y = x2 + x.
y = (smaller slope)
y = (larger slope)

2007-07-17 09:28:31 · 3 answers · asked by Anonymous in Mathematics

2007-07-17 09:27:34 · 12 answers · asked by Anonymous in Mathematics

2007-07-17 09:26:06 · 9 answers · asked by Anonymous in Mathematics

Does anyone know any lockout/tagout statistics? such as, how many unsafe energy related fatalities/injuries per year? or percentage of accidents involving hazardous energy source? or any others, please

2007-07-17 09:24:53 · 1 answers · asked by Chuck Schwarzenegger 2 in Engineering

in the last month 15 cats 11dogs 2 rabbits and 12 birds were boarded at brocks pet hotel.wat is the relative frequency of birds among the animals boarded at the pet hotel in the last month?

wats relative frequency ??
how u slove this?
help plz!

2007-07-17 09:23:43 · 4 answers · asked by po123116 2 in Mathematics

why do people yawn all the time?

2007-07-17 09:22:56 · 15 answers · asked by g.eaglen1 1 in Biology

I'm always reading about people seeing ghosts, yet I havn't and feel I'm missing out

2007-07-17 09:22:43 · 31 answers · asked by Anonymous in Paranormal Phenomena

2007-07-17 09:22:32 · 3 answers · asked by thepaladin38 5 in Mathematics

2007-07-17 09:20:15 · 4 answers · asked by Matt S 1 in Biology

6)Plot the following points on the given rectangular coordinate system by clicking on the given dots and dragging them.

Points to plot:
(-3, 2 )
(-2, 1)
(1, -2)

f you were to connect these points with a line, where would the y-intercept be located? Give the answer in (x, y) form.

(___, ___)

2007-07-17 09:14:12 · 4 answers · asked by DEE H 1 in Mathematics

if we hear sounds when our eardrums vibrate and the bones inside etc, how can we hear multiple sounds at once? wouldnt there just be interference as the vibrations all combine and muddle it up

2007-07-17 09:13:38 · 3 answers · asked by Michael N 2 in Physics

what happens in theese so called farms ???
what do u do with the peacocks??
do eat them ???
(thats nasty)

2007-07-17 09:12:41 · 14 answers · asked by amy 1 in Zoology

Please help!

2007-07-17 09:11:11 · 2 answers · asked by Bigbob22 2 in Mathematics

I mean, some of those tunnels in NYC are like many many stories below ground.

This is also assuming the initial blast wasnt directly in the city, so fallen buildings and fire storms arent a major concern.

Would you be protected from the radiation and fall out. nevermind food or water.

2007-07-17 09:05:52 · 2 answers · asked by amosunknown 7 in Physics

a have always wonder what wouldhappen if a tornado hit an obsticle stronger than itself, would it just die out? (eg . mini tornado and large wall)

2007-07-17 09:04:21 · 3 answers · asked by Anonymous in Weather

2007-07-17 09:01:01 · 1 answers · asked by Anonymous in Chemistry

2007-07-17 08:57:02 · 2 answers · asked by Anonymous in Chemistry

find all real values of x for which tha function are equal. Round your answers to the nearest hundredth?
please help me

2007-07-17 08:55:45 · 7 answers · asked by king 1 in Mathematics

Is That Impossible???

2007-07-17 08:53:56 · 26 answers · asked by **PUGA** 3 in Astronomy & Space

2007-07-17 08:51:05 · 17 answers · asked by dyno 1 in Astronomy & Space

http://video.google.com/videoplay?docid=5216975979627863972&q=zeitgeist&total=764&start=0&num=10&so=0&type=search&plindex=3

i found this very en/lightening.
what do you think?

2007-07-17 08:47:15 · 7 answers · asked by Anonymous in Astronomy & Space

2007-07-17 08:42:52 · 8 answers · asked by yathrikan 1 in Astronomy & Space

In a hydraulic lift, the diameters of the pistons are 4.96 cm and 20.2 cm. A car weighing W = 10.4 kN is to be lifted by the force of the large piston. (a) What force Fa must be applied to the small piston? (b) When the small piston is pushed in by 10.4 cm, how far is the car lifted? (c) Find the mechanical advantage of the lift, which is the ratio W/Fa.


Any help would be appreciated... I'm just looking to understand the problem!

2007-07-17 08:40:26 · 3 answers · asked by Kelly 1 in Physics

2007-07-17 08:34:38 · 3 answers · asked by senthil k 1 in Engineering

I don't believe the Universe started from a tiny speck.
I believe all Galaxies are racing away from each other
and as black holes increase in number and size
the gravity of the Galaxies increase, thus causing a
slight curvature of there paths, resulting in all Galaxies
paths curving around, and meeting at a central point
causing a big bang etc. etc,

2007-07-17 08:31:43 · 12 answers · asked by ronaldmallier 1 in Astronomy & Space

2007-07-17 08:28:30 · 10 answers · asked by ♫☆ Y!A Princessღ ♥ 3 in Astronomy & Space

surfing waves near the shore are preffered

2007-07-17 08:27:24 · 3 answers · asked by jreed2349 1 in Earth Sciences & Geology

bare with me here, this might seem little far out.

First off, our moon is really big considering the size of the earth and therefor has a significant amount of gravity. So the moon is pulling up on us a little bit every time the earth rotates.

now, gravity effects everything, even on the quantum scale. So if the moons gravity shifts every single particle on earth just a tiny tiny bit, those particles gain a tiny tiny bit of kinetic energy.

here's the kicker: when the particles return to their original state that kinetic energy becomes stored as potential energy.
my question is, where does all that energy go?

i'm saying maybe that stored potential energy is the fuel of our consciousness. maybe the moon is what makes us think!

now, if this were true, that means 'intelligent life' elsewhere would not only need H2O and a livable climate to progress, but also a gargantuan moon like our own. so maybe we really are alone in the universe!

2007-07-17 08:26:20 · 9 answers · asked by marcin p 1 in Astronomy & Space