Science & Mathematics - 29 July 2007

Solve. 24 – 6x = 30

2007-07-29 04:37:23 · 6 answers · asked by Marina P 1 in Mathematics

typically have a blood volue that is 5-10% of the total body volume. Would you expect the precentage that blood volume constitutes of total body volume to be lower or higher in an enimal.such as a crayfish, that has an open circulatroy system..and why

2007-07-29 04:23:39 · 2 answers · asked by Anonymous in Biology

2007-07-29 04:23:03 · 15 answers · asked by Anonymous in Zoology

2007-07-29 04:20:34 · 3 answers · asked by izzy 1 in Engineering

a dilation will reduce the area of a triangle provided the scale factor is between _____ and _____.

2007-07-29 04:17:36 · 2 answers · asked by the man 2 in Mathematics

In reality what color is the moon? I keep seeing the black and whites but I know it's always depicted as yellow. Can someone help make sense of this for me?

2007-07-29 04:15:00 · 10 answers · asked by Anonymous in Astronomy & Space

2007-07-29 04:10:13 · 2 answers · asked by Clarence C 1 in Weather

2007-07-29 04:07:12 · 6 answers · asked by Selva G 1 in Chemistry

I always heard this was an impossible feat but in a previous question about acceleration in a vacuum due to gravity I was rewarded with this grand answer

"There is a speed limit to everything, though, and that’s the speed of light; nothing goes faster, not even things that have been falling in a gravitational field for a long time."

so if i drop a teddy bear down a vaccum tube of infinate length it will reach the speed of light?

2007-07-29 03:57:28 · 8 answers · asked by Anonymous in Physics

If the 1st anode accelerates the electrons, what does the rest of them do? Do they accelerate the electrons?If so, how do they do it? If not, can pls tell me wad they are for?

(note: i read that there are more den one anode in an electron gun from wikipedia)

2007-07-29 03:55:34 · 1 answers · asked by noob 1 in Physics

I'm doing sum physical science paper and i nid to noe wat's the solute and solvent of wine!!!

2007-07-29 03:50:19 · 6 answers · asked by Frederick 2 in Chemistry

2007-07-29 03:50:00 · 25 answers · asked by AnnB 1 in Mathematics

I hate that I'll buy bananas for my son, and they'll last forever, but all the sudden near the day when you have to eat that banana or start making bread, we'll see fruit flies everywhere. Then by the time we bring new bananas into the home, there are already fruit flies and the bananas we have get all spotty and decompose faster than the other ones by almost half!!! It's wasting bananas! I hate those little flies!!!

2007-07-29 03:49:11 · 10 answers · asked by Anonymous in Zoology

I get stuck for both AP n GP when the first term isnt given. EG

1. The second term of an AP is 15 and the fifth term is double the first. Find the sum of the first 20 terms of the series.
(a)780 (b)810 (c)720 (d)790 (e)805

2. Find the series in the GP whose 5th term is 80 and the 8th term is 640.
(a)5, 10, 20, 50 (b)2, 4, 6, 8 (c)5, 7, 9, 11 (d)5, 10, 20, 40 (e)5, 20, 40, 80

I figured the answer to the second one is D. I need to know whether this is based on trial and error alone or is there a specific formula to be used here? How do u know what's the difference between the terms or the ratio if only the second term and/or some other random term is given??

2007-07-29 03:35:15 · 4 answers · asked by sampan_50 1 in Mathematics

Doesn't matter what species. Only smaller life form. Would it impact the same as a human-sized one?

2007-07-29 03:29:54 · 12 answers · asked by andy_lo17 2 in Physics

2007-07-29 03:22:49 · 46 answers · asked by Anonymous in Weather

2007-07-29 03:19:20 · 8 answers · asked by andy_lo17 2 in Physics

2007-07-29 03:19:17 · 5 answers · asked by Anonymous in Medicine

2007-07-29 03:15:52 · 3 answers · asked by Anonymous in Medicine

trace the pathway of a crayfish's meal and its digested nutrients from the mouth to the abdominal flexor muscl what molecule must be picked up along this pathway in order for the muscle cell to obtain energy from the food particles and wehre is this molecule absorbed into the blood?

2007-07-29 03:15:35 · 3 answers · asked by Anonymous in Biology

2007-07-29 03:15:11 · 10 answers · asked by steven2008 2 in Physics

that is why is it not affected by the gravitational field

2007-07-29 03:13:50 · 5 answers · asked by honey 1 in Physics

Is there any truth to this planet existing in our solor system?
I read that it has a 3600 year orbit around our sun....and that it was first spotted back in the 1980's but was kept hush for some unknown reason.

Thanks

2007-07-29 03:13:15 · 12 answers · asked by Craig C 2 in Astronomy & Space

quick......

2007-07-29 03:11:24 · 3 answers · asked by Anonymous in Mathematics

2007-07-29 03:11:12 · 5 answers · asked by Anonymous in Physics

Find the reference angle of each angle theta, and then find the exact values of the six trigonometric funtions of theta.

1.) theta = 150 degrees
2.) theta = 9pi/4
3.) theta = -2pi/3

PROBLEM SOLVING

1.) A commercial jet is flying at a constant speed on a level course that will carry it directly over Albuquerque, New mexico. Through a hole in a cloud cover, the captain obsrves the light of the city at the angle depression of 7-degree. 3 minutes later, the captain catches a second glimpse, now an angle of depression 13-degree. In how many more minutes will the jet be directly over the city?

2.)Two coast guards station A and B are located along a straight coastline. Station A is 20 miles due to north of Station B. A supertanker in distress is obsevred from station A at a bearing of S 9degree-10' E, from station B at a bearing of S 37degrees-40' E. Find the distance from the supertanker to the nearest point of the coastline...

Pls answer wat u can answer...really need your help

2007-07-29 03:09:26 · 1 answers · asked by squall_cloud 1 in Mathematics

My question is:
(log7 27)(log3 49)

where 7 & 3 are subscript)

2007-07-29 03:02:04 · 4 answers · asked by luke 1 in Mathematics

bond notation was like this : ...
...
....... ... .......
...
circle

2007-07-29 02:56:52 · 3 answers · asked by 007 Bond 2 in Chemistry

a. how many square metersof area will be painted, allowing 16.8m2 for door and windows?

b. If a paint can be bought by the gallon and 1 gallon will cover about 52m2, how many gallons of paint must be bought if 2 coats of paint are desired?

help

2007-07-29 02:45:13 · 4 answers · asked by Tinx_Kriz 1 in Mathematics

the radius of a sphere is increasing at a rate of 5cm/min. When the radius is 10cm, the rate of increase , in cm3(cube)/min, of the sphere is?

2007-07-29 02:42:36 · 2 answers · asked by Anonymous in Mathematics