Science & Mathematics - 5 August 2007

2007-08-05 10:10:18 · 8 answers · asked by basaawe 1 in Astronomy & Space

Which of the following is the greatest factor of the
equation: 18x³ + 4x² - 6xⁿ
ⁿ=4, couldn't figure out how to get a small superscript 4

A. 2x
B. x³
C. 2x²
D. 4x²
It says the answer is C...
Anyone know of any sites I could freshen up on my problems like this at?

2007-08-05 10:04:41 · 4 answers · asked by Chris 2 in Mathematics

I'm doing one of those summer review packets...and I forgot how to solve this basic problem.

2007-08-05 09:59:30 · 6 answers · asked by mbtafan 3 in Mathematics

I daresay it was egg. How about you?

2007-08-05 09:57:49 · 37 answers · asked by Anonymous in Zoology

http://webmail.aol.com/29047/aol/en-us/Mail/get-attachment.aspx?uid=1.17327527&folder=New+Mail&partId=2

This plant has suddenly grown up outside my house. It is about 6 feet tall,and has a thick stem (maybe about 2 inches diameter. It is almost like a tree! The little green buds are from the plant, the orange flowers are not. The little green buds sprout into little white flowers.

Thanks!!!

10 points to proper identification!

2007-08-05 09:52:22 · 6 answers · asked by Anonymous in Botany

2 questions

The population of a large herd of 6000 buffalo increases at a rate of 20% (.20) each year. In how many years will the population be nearly triple its present size?
a) 3 b) 4 c) 5 d) 6 e) 7

There are 2 specimens of a certain strain of bacteria in a special culture. These bacteria are known to triple in number ever 3 hours. How many will there be in the end of 24 hours?
a) 144 b) 216 c) 768 d) 13,122 e) 19,683

i dont know how to solve so plz explain or show work

2007-08-05 09:52:02 · 5 answers · asked by ? 2 in Mathematics

2007-08-05 09:45:41 · 14 answers · asked by piggiestan 1 in Physics

How would you solve the following difficult problem below?

For the force field F(x,y,z)=(ze^x cos y) i - (ze^x sin y) j + (e^x cos y) k, calculate the work done by F on an object moving along a curve from (0, 0, 0) to (2, π/2, 1)


these were the possible answers given....

-2
-2 - 4e^2
0
-2e
-3e^2
-4e^2


I’ve gotten this far with it….
Px= z e^x cosy so P = z e^x cosy +f(y,z)
Py =- z e^xsin y so P = z e^x cos y +h(xz)
Pz = e^x cos y so P= z e^x cos y + g(x,y)
so
P= z e^x cos y is the potential function and the integral is

1*e^2*0- 0*1*1=0

Now how would you go about solving this….?

2007-08-05 09:43:40 · 2 answers · asked by Jake 1 in Mathematics

Please show work. Thanks

2007-08-05 09:43:19 · 3 answers · asked by Tastytaint 1 in Mathematics

2007-08-05 09:34:13 · 4 answers · asked by Anonymous in Mathematics

The value of the integral is pi/2.

This integral cannot be evaluated using the Fundamental Theorem of Calculus--at least, not in the way one might expect--because (sin x) / x does not have a nice-looking antiderivative.

I found one proof online using the Laplace transform, but I am wondering if there is another way (pehaps using a series, or the Fourier transform, or a contour in the complex plane, or inequalities, or some other technique.)

2007-08-05 09:29:46 · 3 answers · asked by Anonymous in Mathematics

For the force field F(x,y,z)=(ze^x cos y) i - (ze^x sin y) j + (e^x cos y) k, calculate the work done by F on an object moving along a curve from (0, 0, 0) to (2, π/2, 1)


these were the possible answers given....

-2
-2 - 4e^2
0
-2e
-3e^2
-4e^2


I’ve gotten this far with it….
Px= z e^x cosy so P = z e^x cosy +f(y,z)
Py =- z e^xsin y so P = z e^x cos y +h(xz)
Pz = e^x cos y so P= z e^x cos y + g(x,y)
so
P= z e^x cos y is the potential function and the integral is

1*e^2*0- 0*1*1=0

Now how would you go about solving this….?

2007-08-05 09:28:05 · 3 answers · asked by Doug 2 in Mathematics

Diameter of the column: 1.5 cm
Cross sectional area of the column (cm^2): A = π r^2 = π (1.5 cm)^2 = 7.07 cm^2
Height of the column bed: 16.76 cm
Volume of bed:??

2007-08-05 09:24:56 · 3 answers · asked by Anonymous in Chemistry

Solve For Θ

0 ≤ Θ < 360

2007-08-05 09:23:51 · 3 answers · asked by Bobby 1 in Mathematics

My friend needs help identifying this bug: http://img520.imageshack.us/my.php?image=n73480127936833035ei4.jpg

She found it in Maryland and said that it is actually pretty small. I thought that it may be a leaf hopper but I wasn't able to find a picture of one with similar coloring.

2007-08-05 09:16:57 · 3 answers · asked by Anonymous in Biology

6c^4 × 7c^6 my question is do you add or multipy the exponents is the answer 42c^10 or 42c^24 Thanks so much for all your help!

2007-08-05 09:07:10 · 4 answers · asked by Anonymous in Mathematics

Going into my first semester of Comp. Engineering I wanted to know if I should plan to take any C.A.D. specific classes in the future. My curriculum covers some design aspects but I'm not sure if any of the classes feature in-depth studies of using this kind of drafting software. I just wanted some opinions from people who are currently working engineers in the industry or well into their respective curriculum at other universities.

2007-08-05 08:59:20 · 5 answers · asked by Emanuel 2 in Engineering

I think it is amazing that people can go into space, its really awe inspiring to me!! How long will it be until humans land on Mars?

2007-08-05 08:57:17 · 10 answers · asked by Darlingthatsfabulous 1 in Astronomy & Space

Write an equation to describe the variation. Use k for the constant of proportionality.
a varies inversely as s^4




Problem 2


Solve the proportion.

(1) / (w + 10 ) = ( 3) / (5w )

2007-08-05 08:54:01 · 4 answers · asked by Anonymous in Mathematics

You have a square, but on the top of the square you have a extra little edge. The measurements of the whole thing are 15ft by 15ft at the top where you have the extra part and the the rest of the square is 40ft by 50 ft. How would you find the area for this weird square?

2007-08-05 08:52:27 · 6 answers · asked by thecookfamily00 1 in Mathematics

When General Relativity theory (GR) is mathematically mixed with equations for Quantum Mechanics (QMs), more often than not, infinities arise. Why? Could these infinities actually be useful information that is trying to communicate something significant about the laws governing nature? One has to wonder at just what point does GR breaks down when combining QMs? Is it at the atomic level, or on the order of molecules? Could it be that GR and QMs express the same information but in two different kinds of formats and, are just a duality of one another? If GR and QMs are just dualities with GR representing the large version of its duality, QMs; and, QMs representing the small version of its duality, GR, do we really even need to combine them to understand the forces in this universe? Could it be that GR and QMs are to each other what M-theory is to the 5 versions of string theory? The infinities may be telling us that we need to rethink our whole approach to GR/QMs unification.

2007-08-05 08:50:09 · 4 answers · asked by Bob D1 7 in Physics

they always are working around sick people and places (and not immediately knowing whats wrong) and not to mention med resistand bugs.

2007-08-05 08:49:56 · 8 answers · asked by altpro9 2 in Medicine

2007-08-05 08:46:31 · 2 answers · asked by chimstr 1 in Mathematics

A) 3.6
B) 10
C) 36
D) 216

Explain your answer.

2007-08-05 08:42:19 · 11 answers · asked by Anonymous in Mathematics

If the Buret was dirty
If the Buret tip was not completely filled with NaOH when titration began
You forgot to add Phenolphthalen indicator

2007-08-05 08:38:26 · 3 answers · asked by Stacey D 1 in Chemistry

We just had our son's first birthday party and we have a lot of helium balloons leftover, we want to let them go outside and watch them fly away but are curious where they go when we let them go...we have latex and the helium round balloons with pictures on them. I have heard they pop at a certain point but is this even true?

2007-08-05 08:36:59 · 29 answers · asked by mom2abigsis 2 in Astronomy & Space

these are possible answers that the response can be checked with....


a. (3e^3 - 2e^2)i + (e - 3e^3)j + (2e^2 - e)k
b. (3e^3 - e)i + (2e^2 - 3e^3)j + (e - 2e^2)k
c. (e - 2e^2)i + (3e^3 - e)j + (2e^2 - 3e^3)k
d. (2e^2 - e)i + (3e^3 - 2e^2)j + (e - 3e^3)k
e. (2e^2 - 3e^3)i + (e - 2e^2)j + (3e^3 - e)k
f. (e - 3e^3)i + (2e^2 - e)j + (3e^3 - 2e^2)k
g. none of these

2007-08-05 08:35:30 · 2 answers · asked by Olivia 4 in Mathematics

I know a lot about hurricanes and their formation, but this is one of the things I still haven't learned.

2007-08-05 08:34:44 · 3 answers · asked by Anonymous in Weather

an insulated stool touches a charged insulated conductor,is the conductor discharged completely.?

2007-08-05 08:34:37 · 2 answers · asked by Anonymous in Engineering

Solve.
The amount of time it takes a swimmer to swim a race varies inversely as the average speed of the swimmer. A swimmer finishes a race in 500 seconds with an average speed of 3 feet per second. Find the average speed of the swimmer if it takes 375 seconds to finish the race.

5 feet per second
3 feet per second
4 feet per second
6 feet per second



Problem 2

Solve.
The amount of water used to take a shower varies directly as the amount of time that the shower is in use. A shower lasting 22 minutes requires 15.4 gallons of water. Find the amount of water used in a shower lasting 6 minutes.

4.9 gallons
3.5 gallons
4.2 gallons
132 gallons

2007-08-05 08:32:05 · 5 answers · asked by Anonymous in Mathematics