Science & Mathematics - 3 September 2007

Identify the slope and y-intercept for each line then graph:

y=2


I'm stuck. How do you know the slope and y-int?!

Is 2 the y-int and there is no slope?
Thanks in advance!

2007-09-03 07:37:25 · 5 answers · asked by Emma 3 in Mathematics

2007-09-03 07:29:33 · 1 answers · asked by Anonymous in Mathematics

such that the first coordinate plus the second coordinate equals 3, and the square of the first coordinate minus the square of the second coordinate equals -9.

2007-09-03 07:27:16 · 2 answers · asked by Anonymous in Mathematics

I know that the cloud looks darker when there is a higher concentration of water vapor, but I want to know WHY more water vapor makes it darker.

2007-09-03 07:24:22 · 4 answers · asked by markwd21 2 in Earth Sciences & Geology

i need to find out specifications for the strength of spot welds when used for aircraft equipment. and any other similar information is extremely useful,
once again, i love you all

2007-09-03 07:21:08 · 2 answers · asked by mitchwalsheng 1 in Engineering

state the domain of f(g(x)) if f(X) = squareroot x+2 and g(x) =3/x

2007-09-03 07:21:06 · 3 answers · asked by Ballerina 5 in Mathematics

1- the control center in the cell 2- structure dna is located on 3- found in centrioles, cili and flagella 4- storage site for ribosomal ma. This anatomy is driving me crazy. Please help me. My daughter won't.

2007-09-03 07:21:02 · 4 answers · asked by Terri L 2 in Biology

how can I get astronomy smarts ??

how can I absorb all the facts easily?

specially the differences between planets ??

2007-09-03 07:15:04 · 8 answers · asked by Anonymous in Astronomy & Space

Europe, Asia, N and S American everywhere

2007-09-03 07:13:57 · 18 answers · asked by Leila 3 in Geography

i looked this up on the net but i didn't find it anywhere

i have 1 dimple on my right side and i would like to know what is the ratio between people with dimples or without
and even better
how many people have only one dimple

i am told that it's a dominant trait
but only my aunt has dimples and she has 2
thank you

2007-09-03 07:01:45 · 4 answers · asked by Katie 2 in Biology

Suppose your car contains just one gallon of gas. Driving at 20 mi/h you can go 26 mi. Likewise, you can go 34 mi driving at 40 mi/h and 32 mi driving at 50 mi/h.

a. find a quadratic function that models this data
b. how far could you go if you drove at 65 mi/h
c. the nearest gas station is 16mi away. if the speed limit is 55mi/h, at what maximum speed could you drive and still reach it?

2007-09-03 07:00:59 · 2 answers · asked by Anonymous in Mathematics

what to do if I need to find the square root for 8

2007-09-03 06:54:18 · 2 answers · asked by Anonymous in Mathematics

I should know this but I totally forgot how to do it.
Thank you for the help.

2007-09-03 06:53:39 · 4 answers · asked by ben80 2 in Mathematics

Ok, so I asked this question last night, and thought I understood it, but there's 2 parts I can't seem to get...

[f(x+h) - f(x)] / h
Where A. f(x) = 1 / (x + 1) ; B. f(x) = x^2

Sorry but I just don't understand this stuff... help??

2007-09-03 06:52:39 · 1 answers · asked by Kate 3 in Mathematics

2007-09-03 06:52:17 · 6 answers · asked by christa 1 in Botany

can i do diploma in mechanical engineering through correspondence in India

2007-09-03 06:50:55 · 3 answers · asked by m gautam 1 in Engineering

Anyone seen one?

2007-09-03 06:50:03 · 9 answers · asked by Anonymous in Astronomy & Space

An electric field in a given region of space is given by E=3.3x2i (in N/C). What is the magnitude of the potential difference between two points x=0 m and x=5.3 m, i.e. |V(x=5.3 m)-V(x=0 m)|?

2007-09-03 06:48:57 · 2 answers · asked by Dita 5 in Physics

Cosmic storm is the main cause for the total blackout of New York City some years ago. Can this catastrophic incident be prevented to happen again?

2007-09-03 06:48:54 · 2 answers · asked by spiderbenj 1 in Astronomy & Space

here's my scope..

http://www.meade.com/starterscopes/ds_series.html

second one down.

2007-09-03 06:47:01 · 8 answers · asked by Anonymous in Astronomy & Space

2007-09-03 06:45:17 · 8 answers · asked by Anonymous in Astronomy & Space

money matters a lot ok i see some mechanical engineers do software job.. why there is discrimination in pay b/w a mechanical firm and a software firm???

2007-09-03 06:44:13 · 6 answers · asked by rakesh s 1 in Engineering

i would love 2 be a medical technologist, but i also am a people person. could a medical technologist draw blood and obtain specimens???

2007-09-03 06:43:16 · 8 answers · asked by Anonymous in Medicine

sin (9pi/4) using coterminal angle to find the exact value without a calculator.

(pi/4) * (9pi/4) = (8pi/4) + (pi/4) = 2pi + (pi/4) so sin (9pi/4)=sin 2pi +(pi/4) and =sin(pi/4) = 1

did I do this right???


how would I do sec 540 degrees??


please help and explain, thanks

2007-09-03 06:43:04 · 3 answers · asked by rickyricardoiscool 1 in Mathematics

Joe spent 1/5 of his money on books. He spent 3/8 of the remainder on a recorder. He has $250 left. What fraction of his money does he have left?

2007-09-03 06:41:54 · 5 answers · asked by lucious l 1 in Mathematics

Why is glucose such a good energy source for cells and water is not?

-- I am thinking because water is a
bigger molecule.

2007-09-03 06:41:47 · 4 answers · asked by Anonymous in Biology

2x(-3)x(5)
_______

3x(2)



( ) = exponent



please explain how to simplify

2007-09-03 06:37:45 · 9 answers · asked by krissy 1 in Mathematics

To help meet expenses we are raising the price of pizza by 15% how much should we raise the price if the pizza is selling for $14.80?

I thought the answer was $2.22. The answer sheet says $2.20?
How is this possible?

2007-09-03 06:37:29 · 8 answers · asked by Jim C 1 in Mathematics

2007-09-03 06:37:15 · 3 answers · asked by Anonymous in Earth Sciences & Geology

Whitney invested $23,000, part at 2% and part at 12%. If the total interest at the end of the year is $1,260, how much did she invest at 2%?

2007-09-03 06:35:47 · 2 answers · asked by ray 1 in Mathematics