English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

Science & Mathematics - 18 July 2007

[Selected]: All categories Science & Mathematics

Agriculture · Alternative · Astronomy & Space · Biology · Botany · Chemistry · Earth Sciences & Geology · Engineering · Geography · Mathematics · Medicine · Other - Science · Physics · Weather · Zoology

Solve each of the following system by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent.
x + 5y = 10
-2x - 10y = -20

2007-07-18 12:13:10 · 4 answers · asked by jovanni k 1 in Mathematics

given: 7[(7y/3)+10]=49
prove: y=-9/7

2007-07-18 12:05:40 · 3 answers · asked by Anonymous in Mathematics

2007-07-18 12:00:12 · 5 answers · asked by Lewis N 1 in Biology

how do you prove that (1/cscx-cotx)-(1/cscx+cotx) is equal to (2cotx)

2007-07-18 11:59:04 · 4 answers · asked by Juicy Baby 2 in Mathematics

solve each of the following systems by using either addition or substitution. If a unique solution does not exist, state whether the systems is dependent or inconsistent.

10x 2y = 7
y = - 5x + 3

2007-07-18 11:56:26 · 3 answers · asked by Anonymous in Mathematics

:) Not quite sure what I am looking for here, but if I like it you get the points.

2007-07-18 11:55:53 · 3 answers · asked by chancebeaube 3 in Mathematics

solve each of the following systems by substitution.

8x - 4y = 16
y = 2x - 4

2007-07-18 11:53:56 · 3 answers · asked by Anonymous in Mathematics

can anybody show me how to do these types of equations.
i know there easy to everybody except for me.lol.so please bare with me.

2x-20=32

i know you have to do something to get x alone right?

x
__
3 - 4=10

2x
__
5 +1=7

i really want to see step by step i need to learn so when i take this test online i want to be able to recieve my credits

=)

2007-07-18 11:53:49 · 4 answers · asked by Anonymous in Mathematics

2007-07-18 11:53:38 · 4 answers · asked by gary2durham 1 in Engineering

I have four loans on my home (see numbers and terms below.) I am trying to determine the TRUE APR of the 4 total. I am considering a refinance and need to know if I am saving or losing money by doing so. Please help!
TOTAL OWED
(1) $15,000 APR 7.90%
(2) $15,000 APR 24.24%
(3) $85,202 Int Rate 5.75%
(4)$121,441 Int Rate 9.49%

2007-07-18 11:46:43 · 3 answers · asked by Anonymous in Mathematics

2007-07-18 11:44:39 · 4 answers · asked by Anonymous in Medicine

lets say your ship crossed the longitude of 180 degrees west. What happens when you cross this line?

a. You instantly jump ahead one day
b. You instantly jump behind one day
c. You instantly jump ahead 12 hours
d. You instantly jump behind 12 hours
e. Nothing happens

2007-07-18 11:41:28 · 2 answers · asked by Kat Von D 2 in Other - Science

solve for x:

2e^(2x) -e^(-x) = 0

show how you used the natural log to solve it.

2007-07-18 11:39:48 · 12 answers · asked by Zywiec 2 in Mathematics

They Say its our sister planet and before the greenhouse effect took a tole on the planet for the worse on....is it possible that intelligent life was on our sister planet .....would it be possible to tell by al the active volcanoes there that would destroy the evidence of life and the surface being 900 degrees so humans cant reach the ground to observe it

2007-07-18 11:32:50 · 16 answers · asked by rizz 1 in Astronomy & Space

can you use morton salt?sugar?coloring? how do you make it? how long does it take?

2007-07-18 11:25:55 · 4 answers · asked by Anonymous in Chemistry

hwo to do things like 6a - 18b please help!!!

2007-07-18 11:24:20 · 7 answers · asked by Anonymous in Mathematics

what is liquid and solid at the same time?
first correct answer gets best answer.
have fun lol ;)

2007-07-18 11:21:59 · 24 answers · asked by Promise 3 in Mathematics

"2 magnets of equal size repulse one another at a constant velocity that is relative to their mass. Remember, the force of gravity is very weak, and in fact, magnets of any size are capable of exceeding it temporally."


This person is claiming that half mile long magnets will push a vehicle into orbit.

??

2007-07-18 11:16:25 · 4 answers · asked by tjcsonofallnations 3 in Physics

empirical is the simplest and molecular is the normal formula

2007-07-18 11:14:54 · 2 answers · asked by chemhelp 1 in Chemistry

for my
bilogy class

2007-07-18 11:13:58 · 4 answers · asked by keka 1 in Botany

Can it regrow a new body?

2007-07-18 11:11:21 · 9 answers · asked by blujay_ 2 in Zoology

saprotrophs secrets enzymes on to the organic matter ?in this line what is meant by ON TO THE ORGANIC MATTER?the organic matter of what ?

2007-07-18 11:08:13 · 4 answers · asked by Anonymous in Biology

And do different sea mammals do it differently. Like sea otters and dolphins. Whales and Walruses.

2007-07-18 11:01:00 · 3 answers · asked by blujay_ 2 in Zoology

2007-07-18 10:58:12 · 7 answers · asked by Anonymous in Biology

2007-07-18 10:54:04 · 14 answers · asked by alexander w 1 in Chemistry

2007-07-18 10:53:52 · 3 answers · asked by robert c 1 in Physics

fedest.com, questions and answers