Science & Mathematics - 29 November 2006

2006-11-29 16:25:20 · 11 answers · asked by Play Her 1 in Astronomy & Space

Hey guys i have a math test 2 morrow and these r some questions on the test and i need to pass lol..

I need to factor

1. 5n-80

2.3x^2+15-45

And I have to find the area of a regular Pentagon with a side of 10.

thank you so much .....please help =D

P.s - this means squared-^2

2006-11-29 16:25:13 · 7 answers · asked by Camisado 1 in Mathematics

Can you Please name them all?

2006-11-29 16:23:07 · 13 answers · asked by effieiscute 1 in Geography

The numbers in the pair do not have to match.

2006-11-29 16:21:13 · 11 answers · asked by Es Nina Chica 1 in Mathematics

I think it is sodium and potassium but i really don't know since i am a diesel freak not a chemist...I deal with diesel fuel, Cummins, and CATERPILLAR. Thats as far as i come to Chemistry. um ....thanx

I hope you can answer this Richard....As it doesn't look like a problem for you.

2006-11-29 16:20:57 · 6 answers · asked by Anonymous in Chemistry

ln X=ln2+ln(3x-1)

2006-11-29 16:20:32 · 2 answers · asked by Anonymous in Mathematics

2006-11-29 16:19:45 · 3 answers · asked by Anonymous in Engineering

2006-11-29 16:19:26 · 2 answers · asked by brainy 2 in Engineering

his shadow changing when he is 35ft away from the lampost?
*please explain steps; any help is greatly appreciated**
possible answers:
a. 6/5
b. 30/13
c. 3/5
d. 175/6

2006-11-29 16:18:42 · 4 answers · asked by j a 1 in Mathematics

7x + 4 = 15x +36

2006-11-29 16:17:36 · 24 answers · asked by Mell 3 in Mathematics

On the average, hotel guests who take elevators weigh about 150 pounds with an SD of about 35 pounds. An engineer is designing a large elevator for a convention hotel, to lift 50 such people. if she does it to lift 4 tons, the change it will be overloaded by random group of 50 people is about _____. Explain.

Thanks!

2006-11-29 16:17:02 · 2 answers · asked by po0qly 1 in Mathematics

I want 2 buy a good telescope but i don't want to break my bank account, any ideas? What are the perks of evening having a telescope.....I have no light where i live...I live country ...like acres.....got any links , stores, i can look at...plz put down below. Thanks!

2006-11-29 16:10:06 · 5 answers · asked by Play Her 1 in Astronomy & Space

2006-11-29 16:09:36 · 3 answers · asked by Anonymous in Mathematics

2006-11-29 16:08:52 · 3 answers · asked by Anonymous in Chemistry

24 and 45, 10 and 22, 11 and 15, and 21 and 27.

2006-11-29 16:08:25 · 2 answers · asked by Jacqueline B 1 in Mathematics

gravitational drainage

2006-11-29 16:05:40 · 3 answers · asked by Dr. Dick Bird, PhD 2 in Engineering

2006-11-29 16:05:36 · 3 answers · asked by Anonymous in Chemistry

(-4,-1) (4,-3) show work on the graph paper. midpoint_______ distance from mid to endpoint

2006-11-29 16:04:16 · 2 answers · asked by Anonymous in Mathematics

I have no idea what I'm doing, please help me.

the intensity of the gravitational field varies inversely as the distance squared. If the intensity is 6 when the distance is 2, what is the intensity when the distance is 3?

I thought it would be 6/9 but .6666 doesn't make sense.

2006-11-29 16:04:01 · 10 answers · asked by Lumpy 2 in Mathematics

from the east at 285km/hr. Find the rate at which the distance between the planes changes when the southbound plane is 26km away from the airport and the westbound plane is 15 km from the airport.
*please explain step; any help is greatly appreciated*
possible answers:
A. 2142
B. 1982
C. 396
D. 82
E. none of the above

2006-11-29 16:01:07 · 2 answers · asked by j a 1 in Mathematics

2006-11-29 15:59:53 · 3 answers · asked by Samdog2 3 in Biology

of the cube changing when the edge is 6.7 mm?
*related rates problem*
please explain steps
any help is greatly appreciated.

2006-11-29 15:58:00 · 3 answers · asked by j a 1 in Mathematics

2006-11-29 15:55:27 · 2 answers · asked by Khazz S 2 in Mathematics

Solve the equation....

ln (5x + 2) + ln x = ln e

and

ln (x+1) / (ln(x-1) = 2

2006-11-29 15:50:10 · 3 answers · asked by Anonymous in Mathematics

Nucleus choroplast, mitochondria and cell wal, cell membrane

2006-11-29 15:47:32 · 2 answers · asked by AP Biology Student 1 in Biology

Not a utility pole or a telephone pole. But something else...What is it?

2006-11-29 15:46:52 · 3 answers · asked by George 2 in Engineering

there is noi nucleus in blood cells but there is genetic information and if we have to any sample of criiminal then and blood of any other person he is taking so how we work with this technique and if there is no DNA change then how we solve parenta case and criminal case

2006-11-29 15:45:57 · 8 answers · asked by Nsd 1 in Medicine

is anyone else upset by it? i live in ohio where we get snow,by late october early november but it's late november , early december and its like 65 degrees outside and kind of warm which is strange since i live up north...

2006-11-29 15:44:01 · 13 answers · asked by Anonymous in Weather

My daughter is going to British School and i want to help her with 2 digit addition . Back in India we solve it :
1
12
+ 9
-------
21.
My daughter is 5and half years.

2006-11-29 15:42:35 · 10 answers · asked by blue 1 in Mathematics

2006-11-29 15:42:16 · 1 answers · asked by sims 2 in Botany