Science & Mathematics - 11 November 2007

The probability is extremely large, but is it still possible? What about the case with identical twins?

2007-11-11 12:44:35 · 2 answers · asked by Anonymous in Biology

Hello good people. Thank you from the bottom of my heart for all of your help. I'm solving the system of Equations. Now, I have the equation 3x-4y=-11 wouldn't I let x=0 and find y and let y=0 and find x?. or am I mixing this problem up with another?.

2007-11-11 12:44:20 · 6 answers · asked by bug 2 in Mathematics

a) water
b) carbon dioxide
c) glucose
d) ATP


these are the same choices for two different questions. this was on my test and im not sure what the answers are

2007-11-11 12:43:52 · 2 answers · asked by Anonymous in Biology

A.deciduous forest
B.desert
C.grasslands
D.tropical rain forest

2007-11-11 12:42:25 · 4 answers · asked by DJS 1 in Botany

Why must the length of the telescope be adjusted when you move from viewing an object close by to one far way

2007-11-11 12:39:37 · 2 answers · asked by scott j 1 in Astronomy & Space

do moth balls conduct? do they have high boiling points? are the solbule in water?

2007-11-11 12:39:32 · 2 answers · asked by Anonymous in Chemistry

1.Give the center of the circle with equation x^2+2x+y^2-10y+22=0

2.Several values of the two functions f and g are listed below:
x 4 5 6 7
f(x) 7 6 5 4

x 4 5 6 7
g(x) 6 7 4 5
Find (f × g)(6)

3. An object is projected upward from the top of a tower. Its distance in feet above the ground after t seconds is given by s(t)=-16t^2+64t+80. How many seconds will it take to reach ground level?

4.Find an equation for the line with y-intercept 3 that is perpendicular to the line:
y=2/3 x - 4

5.Determine the vertex of y=x^2-8x+22.

6.Find the maximum value of y=-x^2+6x

2007-11-11 12:39:27 · 3 answers · asked by austin 1 in Mathematics

THe Keck telescopes in Hawaii have objective lenses 10 meters in diameter. If the diameter of your eye is 4mm, how many times more light is received by one of these telescopes than by your eye

2007-11-11 12:38:51 · 4 answers · asked by scott j 1 in Astronomy & Space

We're told the universe was compressed to singularity at the time of the BIG BANG. Since iron is a large portion of all planets does anyone know much iron has been compressed so far in laboratory test or did they just forget about testing?

2007-11-11 12:38:38 · 2 answers · asked by james h 2 in Astronomy & Space

Like when you rub your hands.

2007-11-11 12:36:06 · 5 answers · asked by Dhaval L 1 in Other - Science

what is the percentage yeild of the reaction if 2 grams of H2 produces 18 grams of H2O?

2007-11-11 12:34:43 · 2 answers · asked by Anonymous in Chemistry

A club consists of 36 men and 24 women. If 5 people are selected at random for a party committee, what is the probability that the committee will be all women?

2007-11-11 12:33:50 · 5 answers · asked by lilred 1 in Mathematics

2007-11-11 12:32:20 · 1 answers · asked by Anonymous in Chemistry

why dosen't the North star move?

2007-11-11 12:31:09 · 7 answers · asked by Anonymous in Astronomy & Space

2007-11-11 12:29:52 · 5 answers · asked by Alejandro 1 in Biology

A) mixture of 82.49 g Aluminum (26.98 g/mol) and 117.65 g Oxygen (32 g/mol) is allowed to react. What MASS of aluminum oxide (101.96 g/mol) can theoretically be formed.

4AL + 3O2 ---> 2AL2 O3

B) How many grams of NO (30.01 g/mol) are expected if 500g O2 (32 g/mol) reacts completely with excess ammonia (NH3) (17.03 g/mol)?

4NH3 + 5O2 -----> 4NO + 6H2O

PS: I give best answer to those who explain the logic in each step behind the answer.

2007-11-11 12:29:45 · 2 answers · asked by Someguy25 4 in Chemistry

2007-11-11 12:29:14 · 3 answers · asked by raquel_rodriz 1 in Medicine

If a complex test was devised with every sequence certified & documented by a large team of experts of an actual happened event, how would most BIG BANGERS with every tool made available to them fare in taking this test?

2007-11-11 12:28:05 · 8 answers · asked by james h 2 in Astronomy & Space

Okay, im doing chemistry homework. I cant work out how to get the pH if only the OH- is given. Can anyone give me a formula for doing it?

Daniel

2007-11-11 12:25:54 · 3 answers · asked by Peter 1 in Chemistry

The questions are:

A train leaves a city heading west and travels at 50 mph. Three hours later, a second train leaves from the same place and travels in the same direction at 65 mph. How long will it take for the second train to overtake the first train?


The second question:

A ship travels from New York to Southhampton, England at 33 mph. A plane traveling at 605 mph takes 104 hours less time to make the same trip. How far apart are the two cities?


I need to show all work.
Thank you much!

2007-11-11 12:25:24 · 3 answers · asked by sarah♥ 2 in Mathematics

how big would you want it to be? and how much would you pay? and any other comments would be helpful thanks!

2007-11-11 12:25:14 · 4 answers · asked by Jrodd 2 in Engineering

2007-11-11 12:24:21 · 3 answers · asked by Anonymous in Biology

I am a truck driver and my cusin passed away - he was a plumber - and I inherited his soldering iron and also some solder and flux paste. So now I can do electonics. What is the best way to contact an aliun civilisashun, and where can I buy the stuff? I think it is called SETI.

2007-11-11 12:23:30 · 3 answers · asked by Jan O. 1 in Engineering

please answer asap

2007-11-11 12:21:59 · 1 answers · asked by Anonymous in Zoology

I am doing a fruit fly experiment in my biology class. Im in a ninth grade honors class and we put 13 wild males in a vial and 3 vestigial females with them. I need to know how to predict their expected offspring. If you could explain how to do this, it would be highly appreciate. I give out best answer to anybody who is accurate. Please include percents in your answer. Thanks.

2007-11-11 12:21:33 · 2 answers · asked by ? 5 in Biology

2007-11-11 12:19:09 · 2 answers · asked by Anonymous in Mathematics

2007-11-11 12:17:09 · 4 answers · asked by Anonymous in Mathematics

Could someone help me solve this problem. I'm having trouble with it.

Solve for all real values of x.

2 sinx + cscx = 3

Thanks. Solve in steps please

2007-11-11 12:16:03 · 5 answers · asked by cgarletts 1 in Mathematics

2007-11-11 12:14:50 · 3 answers · asked by rachaeledawson 2 in Engineering

PLEASE ANSWER, PLEASE!!!!!

2007-11-11 12:14:25 · 3 answers · asked by Anonymous in Zoology