Science & Mathematics - 26 October 2007

my yahoo name is: chris_rock1717 if you can help me plz

find inverse of f(x) = (x+4)^3
i cant solve this i tried!!!

2007-10-26 13:43:13 · 8 answers · asked by a a 1 in Mathematics

2007-10-26 13:41:07 · 10 answers · asked by Anonymous in Physics

Was that exclusive to the West Coast (of the states), or universal?
Also, The moon still floated light, yet large this morning...........the size was striking & peaceful. Just want a scientific point of view. Kindly~

2007-10-26 13:37:34 · 24 answers · asked by fiofunk 3 in Astronomy & Space

i have been asked by my teacher to write down the stages of how to make a cup of tea starting from tea leaves ending with a cup of tea, i know it sounds funny, but its part of my HE study hahah, can any1 help me plzzzzzzzzzz

2007-10-26 13:37:14 · 8 answers · asked by emely A 1 in Chemistry

2007-10-26 13:33:02 · 6 answers · asked by Mrs. Humphreys 2 in Earth Sciences & Geology

evaluate the integral of [ dx /x*sqrt(3+4x ] = integral of "dx" divided by x multiplied by the square root of "3+4x".

answer choices:

a)
-(1/sqrt(3)) ln [ sqrt(3 + 4x) + sqrt(3) / sqrt ( 3+4x) - sqrt(3)]+C

b) (1/sqrt(3)) ln [ sqrt(3+4x) + sqrt(3) / sqrt(3+4x) - sqrt(3) ]+C

c) (1/sqrt(3)) ln [ sqrt(3+4x) - sqrt(3) / sqrt(3+4x) + sqrt(3) ]+ C

d) -(1/sqrt(3)) ln [ sqrt(3+4x) - sqrt(3) / sqrt(3+4x) + sqrt(3)] + C


if you can figure this problem out and explain how you got it i will buy you lunch, i think this problem is done by trig substitution by my answer never comes out exactly how the multiple choice has it.

2007-10-26 13:32:38 · 2 answers · asked by Anonymous in Mathematics

2007-10-26 13:31:30 · 2 answers · asked by Anonymous in Biology

2007-10-26 13:28:53 · 6 answers · asked by Nolan M 1 in Geography

Two day ago I went to the hospital and the doctor asked me to take a regular blood test due to an stomach pain I have right now and when I saw the needle I closed my eyes, but when I opened them again, I saw a red spot in the finger of the girl who took my blood test. Now I’m really scared again because I think it was blood. I got so scared that I while I was waiting for the results; I had to ask her if it was blood but she said it was only ink from a red marker. I didn’t see the red spot again because she was wearing gloves but she wasn’t wearing them when she took my blood. This idea I have is probably a bit sick but I believe that the girl could have used her blood to infect me with HIV. Is this possible? Can somebody do something like that? Should I take another blood test in three months time? Or am I just being Paranoid???

2007-10-26 13:25:44 · 8 answers · asked by KIKO_Ivan 2 in Medicine

Express the integrand as a sum of partial fractions and evaluate the integral of [ (x^3/x^2+x+1) dx ]

answer choices:

a) 48 ln(x -16) + (48/x+4) - [64/(x+4)^2] + C

b) (x^2/2) - x - 3 ln(x+1) + [1/x+1)^2] + C

c) (x^2/2) - x + 3 ln(x+1) + (1/x+1) + C

d) (x^2/2) - x + 3 ln(x+1) - (1/x+1) + C

2007-10-26 13:17:40 · 3 answers · asked by Anonymous in Mathematics

If we use a length of 70'ft. From a starting elevation of 100' ft above sea level. How many feet will it rise in a 70' ft. distance to aquire a 10% slope up hill?

2007-10-26 13:16:49 · 4 answers · asked by Robert G 2 in Mathematics

What is 12?

2007-10-26 13:16:38 · 1 answers · asked by Anonymous in Mathematics

1.The zone of light penetration in aquatic ecosstems is____.
a.unlimited
b.the aphotic zone
c.the photic zone
d.unpopulated by autotrophs

2.A primary abiotic limiting factor of the tundra biome is____.
a.temperature
b.lack of plant life
c.too much water
d.altitude

3.The orderly changes that take place in communities are____.
a.called succesion
b.a climax
c.a range of tolerance
d.limiting factors

4.A species that first occupies and lives in an area is a____.
a.limiting species
b.pioneer species
c.consumer
d.predator

5.The zone in which most organisms of a population congregate is the____.
a.aphotic zone
b.photic zone
c.optimum range
d.zone of intolerance

6.The major difference between climates of grassland and forest is that grasslands are____.
a.cooler
b.water
c.drier
d.brighter

7.Stable community populations results in a(n)____.
a.country
b.desert
c.climax community
d.ecosystem

8.Coastal bodies of water,partially surrounded by land, in which fresh water and salt water mix are

2007-10-26 13:12:58 · 2 answers · asked by Anonymous in Biology

can someone help me solve these 2 questions by completing the sqaure

i) 2x
------- - 3x + 8 = 0
x - 2

ii) ( x - ¾) ² - 7/16 = 0

2007-10-26 12:58:51 · 3 answers · asked by Anonymous in Mathematics

With our current technology and rocket capabilities, it would take just over 10,000 years for a craft to reach the ort cloud, and, as it were, venture beyond our own solar system. With that in mind, can anyone honestly propose that man will ever leave our solar system?

2007-10-26 12:58:39 · 5 answers · asked by Expat 6 in Astronomy & Space

http://www.accuweather.com/news-weather-features.asp?


Could one of you guys tell me what those pictures exactly mean, does that mean that the Northwest will have an above average winter?

2007-10-26 12:58:19 · 4 answers · asked by Anonymous in Weather

How would I find the exact value using a sum or difference identity?

2007-10-26 12:51:32 · 4 answers · asked by roguetrader12002 4 in Mathematics

2007-10-26 12:51:13 · 6 answers · asked by Anonymous in Mathematics

2007-10-26 12:50:06 · 7 answers · asked by Anonymous in Mathematics

2007-10-26 12:49:12 · 4 answers · asked by duderings 2 in Mathematics

the president announces that the national deficit is increasing but at a decreasing rate. Interpret this statement in terms of a function and its derivatives.

Please explain it to me in details... I have an exam coming up and I would like to understand this topic well.

2007-10-26 12:46:55 · 1 answers · asked by Anonymous in Mathematics

its when i go to the part on the start where it says my farm name, the season, the monsters i have (none), my money, and WOOD, that it says i have none

2007-10-26 12:46:51 · 1 answers · asked by Morgan R 1 in Zoology

4 exponent 2 - 3(8 - 12)
___________________

3 exponent 2 - 2

2007-10-26 12:44:53 · 1 answers · asked by Anonymous in Mathematics

Two wires are tied to the 500 g sphere shown in figure. The sphere revolves in a horizontal circle at a constant speed of 8.30 m/s.

What is the tension in the upper wire?

What is the tension in the lower wire?

2007-10-26 12:44:03 · 1 answers · asked by katie m 1 in Physics

WIRE
GETTING IN

2007-10-26 12:43:38 · 6 answers · asked by peanut 1 in Mathematics

2007-10-26 12:43:30 · 4 answers · asked by seasea 1 in Engineering

A(3,1,0)
B(2,-3,1)
C(-1,0,4)
D(5,-6,-2)


i THINK your supposed to make 3 vectors then do the system equation elimniation thing and see if Left Side = Right Side...

except when i do it, its wrong!


can someone show the work??

2007-10-26 12:43:09 · 2 answers · asked by mystery_girl07 2 in Mathematics

Carbon Dioxide, Chlorofluorocarbons, Ground-Level Ozone, and Sulfuric Acid?

2007-10-26 12:28:06 · 1 answers · asked by Kimmy 1 in Earth Sciences & Geology

Why is more impulse delivered during a collision when bouncing occurs, than during one when it doesn't?

P.S. I'd appreciate if u'd give me a legit answer-don't put simple pointless ones like 'i don't know'. If u don't know, then common sense tells u don't answer.

2007-10-26 12:22:07 · 5 answers · asked by Rosy 2 in Physics

I have a vacuum oven. heat . hold. stop heater. vacuum on. hold. stop vacuum. this goes on for many cycles.
water boils at 100deg C at 760 Torr.
water boiling point decreases as pressure drops ( vacuum ).
wetted part - shouldn't it dried under lower pressure.
Anything to do with sudden vacuum, temp drops?
Not very clear on this theory. Please explain. Thanks.

2007-10-26 12:21:11 · 2 answers · asked by Charles T 1 in Physics