Science & Mathematics - 19 December 2006

2006-12-19 13:55:35 · 6 answers · asked by Anonymous in Chemistry

I'm not sure how to handle the exponants. I'd like it as (7y^? - y^?)^?

2006-12-19 13:53:43 · 3 answers · asked by dgbaley27 3 in Mathematics

2006-12-19 13:52:48 · 6 answers · asked by Anonymous in Astronomy & Space

my problem is: Find distance from point P(-1, 4) to the line 2x - 3y = 4 to the nearest hundred. I just don't know what numbers to plug in.

2006-12-19 13:50:50 · 6 answers · asked by Anonymous in Mathematics

I want to know because I want to be a STRUCTURAL ENGINEER but I hate the sun and the heat.I want to work in an office with air conditionated and well dressed.Please tell me.......THANKS

2006-12-19 13:50:34 · 5 answers · asked by The Apostle 2 in Engineering

2006-12-19 13:50:21 · 1 answers · asked by eduardaberry 1 in Chemistry

Factor:
2x^2-15x+7

Okay, so first what I did was find the sum and product. Which was.
S= -15
P= 14

Then the terms that I can use I got -1 & -14.
So then I rewrited the problem as 2x^2-1x-14x+7
then I did this: 2x(x-1) -7 (2x-1)

Then my answer was: (x-1)(2x-7)

Did I do this right? I don't know for sure. If you could please do this step by step for me so I can understand it better would be helpful. Becauase the second part I didn't get. Which was the 2x(x-1) -7 (2x-1) otherwise I get the problem and what we have to do.

2006-12-19 13:49:56 · 7 answers · asked by snape_fan_2005 2 in Mathematics

Okay, I'm on my school's academic team, and last week we had a competition. We had many problems akin to: So-in-so has a test average of whatever with test grades of whatever, whatever, whatever, whatever, and whatever. What grade does So-in-so need to make on their next test to get their test average up to whatever? I DIDN'T KNOW HOW TO DO THEM!!! Can anyone explain how to do these to me?

2006-12-19 13:48:30 · 8 answers · asked by RachelDeeJay 2 in Mathematics

3(-4v+1) = 2(v+1) - 8(6v-2) + 2

2006-12-19 13:46:26 · 5 answers · asked by Navy SEAL - 42 2 in Mathematics

A four-engine jet accelerates down the runway
at 5 m/s2.
If one of the jet engines fails, how much ac-
celeration will the other three produce? An-
swer in units of m/s2.

2006-12-19 13:46:08 · 3 answers · asked by Anonymous in Physics

Of all the Math concepts and results you've seen in this course, which ones did you find most applicable to daily life

2006-12-19 13:45:26 · 3 answers · asked by Anonymous in Mathematics

4/5 + 1/2h = 3/4

2006-12-19 13:45:12 · 4 answers · asked by Navy SEAL - 42 2 in Mathematics

For example, the team decides to drive the trip at an average of ten hours a day at 55 MPH, you can use the distance formula to find how long it would take to make the trip

2006-12-19 13:44:13 · 1 answers · asked by Anonymous in Mathematics

How can the magnetic orientation of rocks be used to trace the way a continent move as it drifted? (hint: Special techniques exist for determining the age of rocks) My little sister has this problem, and asked me and i have no idea. PLEASE HELP

2006-12-19 13:43:58 · 7 answers · asked by Preposterous 2 in Earth Sciences & Geology

2006-12-19 13:43:48 · 4 answers · asked by Anonymous in Biology

How can I draw a flowchart of the life cycles of slime molds?

2006-12-19 13:43:38 · 3 answers · asked by Anonymous in Botany

simplify.simplify. assume that all variables represent positive numbers. w/ 14

2006-12-19 13:41:58 · 2 answers · asked by Anonymous in Mathematics

what is the ratio of the length of the tennis ball can to the circumference of the top of the can? Note that the can holds three balls snugly. Length of one ball is 1 in.

2006-12-19 13:41:57 · 3 answers · asked by Anonymous in Mathematics

Also, dilute acetic acid does not conduct electricty as well as dilute nitric acid at the same concentration. Does this mean that acetic acid is a strong acid or a weak acid?

I hope someone can help me because my teacher did not explain it very well. Please help.

2006-12-19 13:41:54 · 6 answers · asked by Tiffany 3 in Chemistry

HOw can the magnetic orientation of rocks be used to trace the way a continent move as it drifted? (hint: Special techniques exist for determining the age of rocks) My little sister has this problem, and asked me and i have no idea. PLEASE HELP

2006-12-19 13:41:07 · 4 answers · asked by Preposterous 2 in Earth Sciences & Geology

Can u ..:p
need examples of commensalism and parasitsm..

2006-12-19 13:40:01 · 5 answers · asked by Anonymous in Zoology

I know that you need to find derivative and find f'(x) = 0 or dne, i just don't know how to solve it with the [e] in the equation. help anyone?

f(x) = xe^(2x)
f'(x) = (2x + 1)e^(2x)

f(x) = 0
(2x + 1)e^(2x) = 0
e^(2x) = 0
...
that is where i'm lost

2006-12-19 13:39:59 · 4 answers · asked by dizzawg16 3 in Mathematics

The Pythagoreans were fascinated by perfect, abundant, deficient and amicable numbers. A counting number is said to be perfect if it is equal to the sum of its proper factors. ( " Proper" simply means not including the original number being factored). Show that 8128 is a perfect number.

2006-12-19 13:36:59 · 6 answers · asked by Anonymous in Mathematics

I will be writeing and I look and i have writen the wrong word.I will wont to write the word .this. and write. like.or the . instead of. it.I have never done this before.I take lortab. paxil. seroquil. lamictal..and sometimes lunesta.all.for a long time.wonder what is causeing this word play weirdness.? Thanks

2006-12-19 13:34:45 · 6 answers · asked by Anonymous in Medicine

2006-12-19 13:33:31 · 6 answers · asked by Tenascious 2 in Mathematics

if you had -(3wz^4)(-5w^2z^3)
how would you do that?
would you distribute the negative sign to the 3wz^4 or to the 3, then w, then z?
after that, could you multiply the two parts in parenthesis in colums?

2006-12-19 13:33:23 · 5 answers · asked by *~SAMI~* 2 in Mathematics

what is the probability of getting 3 heads in tossing a coin 4 times?

2006-12-19 13:30:32 · 5 answers · asked by jongbong 5 in Mathematics

This is a math logic problem posed in my daughter's 5th grade math class. Sometimes these have fairly straightforward math solutions and other times they are more like a riddle. We're stuck!!

2006-12-19 13:30:20 · 7 answers · asked by Math-challenged Parent 1 in Mathematics

I'm wondering if killer whales have been known to attack humans.
I've seen what they do to seals and its pretty grim. Have any humans met that same fate?

2006-12-19 13:29:00 · 7 answers · asked by Anonymous in Biology

Please Show your work, thank you

2006-12-19 13:28:43 · 3 answers · asked by Cupcake 2 in Mathematics