Science & Mathematics - 23 July 2007

Determine if Mean value theorem applies:

f(x)= 1/ (x - 2)^2 between [0 , 2]

2007-07-23 06:50:11 · 2 answers · asked by Anonymous in Mathematics

pardon my sucking ENG!
whats based on persian computer key boards versification?

2007-07-23 06:47:32 · 1 answers · asked by ? 1 in Engineering

Refer fundamental theorem of Algebra

2. If a=b(mod n) , c=d(mod n), then a+c=b+d(mod n) and ac=bd(mod n)
Here = means congruent. I could not find the sign for congruent.

2007-07-23 06:45:49 · 1 answers · asked by chaand 1 in Mathematics

(x-2)(x-2)
=x^2-2x-2x-4
= x^2+x-4 (answer)


If it isn't what did I do wrong?

2007-07-23 06:45:05 · 10 answers · asked by gloriousnina 2 in Mathematics

In my current texbook, they don't tell what to do in this instance.
e^-3x

2007-07-23 06:44:49 · 5 answers · asked by Good Boy 1 in Mathematics

2007-07-23 06:44:13 · 8 answers · asked by Anonymous in Mathematics

Let X = {1, 2, 3, 4}, Y = {2, 3, 4, 5, 6}, Z = {1, 2, 3}.
Whats a function f: X -> Y that is one-to-one but not onto and whats a function for X -> Y thats neither.

2007-07-23 06:43:45 · 2 answers · asked by Tim4545 1 in Mathematics

Nickel is ferro magnetic in nature. But when it is added with stainless steel, it makes stainless steel non-magnetic. What is the structural changes happened with the presence of nickel?

2007-07-23 06:43:24 · 0 answers · asked by lan 2 in Physics

2007-07-23 06:41:46 · 8 answers · asked by william l 1 in Zoology

2007-07-23 06:37:54 · 7 answers · asked by karthikeyan t 1 in Geography

Our company's new "Lite" yogurt is supposed to contain only 1.5 grams of fat. The FDA monitors these advertising claims for accuracy. If they can prove, at the 10% significance level that our product contains more fat than advertised, then we will be subject to fines and product recall. A sample of 90 packages yielded an average of 1.54 grams of fat, with a standard deviation of 0.16. Perform the appropriate hypothesis test to see if our product violates FDA advertising standards.

Write the appropriate null and alternative hypotheses.

H0: _______________
H1: _______________


Write the rejection rule for the null hypothesis.


Calculate the appropriate test statistic.


Write a conclusion. Do we reject or fail to reject the null hypothesis? What do we believe about the fat content of the yogurt?


Find the p-value.

2007-07-23 06:36:14 · 4 answers · asked by Anonymous in Mathematics

I was told that rain never falls vertically but always at an angle. is this true? It looks pretty vertical to me!!

2007-07-23 06:33:53 · 41 answers · asked by andy w 1 in Weather

Please help me my teahcer didn't go over this and my final is on Thursday!! Please everyone come to my rescue!!!
Use a double- angle formula to rewrite:

2 sin 12 cos 12

cos^2 6a-sin^26a

thanks again

2007-07-23 06:32:09 · 3 answers · asked by In Flames I Lay Dying 3 in Mathematics

2007-07-23 06:28:35 · 3 answers · asked by Enquire 1 in Engineering

(7) ^1.2y^2-6y-13(7)^1/2=0

I need help with this and justifying the solutions and why.

2007-07-23 06:26:54 · 1 answers · asked by littlesoutherner12 1 in Mathematics

2007-07-23 06:26:13 · 7 answers · asked by marie c 1 in Mathematics

do they have to pay x amount of £'s for a coffin, or can they supply their own ( plastic bag, cardboard box) Also, does one have to pay for the services of an undertaker, or could the family do it them selves, and how? is there a set price that undertakers are allowed to charge, or do they make it up as they go along? Genuine question!

2007-07-23 06:18:53 · 8 answers · asked by Anonymous in Earth Sciences & Geology

give some good conditions for living such as sources for water,food & others

2007-07-23 06:13:32 · 9 answers · asked by santu 1 in Astronomy & Space

I am wondering what comes after division in teaching math? I was thinking of going into pre-algebra, but my cousin doesn't know fractions, and I do not want to teach him pre algebra untill I know that he knows everything needed to go into pre algebra..

So any teachers or people that have alot of experience in math that can help me? All he knows is adding/subtracting/multiplicat... No fractions, or really anything other then the basic math that I listed above.

2007-07-23 06:06:43 · 4 answers · asked by Anonymous in Mathematics

If a lead acid battery is rated 50Ah, this means that it can provide continuously to a 10A load during 5hrs or full 50A to a load during one hour.But, does that also means that it can provide 100A to a load during 30 minutes?Or 3000A during 1 minute???

2007-07-23 06:06:23 · 3 answers · asked by Anonymous in Engineering

It has leaves with two points, shaped like a footprint from a cloven hoof. ie this shape:
http://img.tfd.com/dict/05/65734-cloven-hoof.gif

2007-07-23 06:05:52 · 11 answers · asked by Anonymous in Botany

Parallactic second. It is a unit for measuring the distance of stars from earth, but how parsec is defined, please clarify.

2007-07-23 06:05:26 · 5 answers · asked by Anonymous in Astronomy & Space

in the environment?''why if you notice that when dry hot asphalt in the daytime sprinkle it w/ water you can see the vapor smokin but its the oxigen and hydrogen was release i wonder if all the oxigen and hydro were release in a hot day instead of watering plants early,why not late when its hot and from the ocean connect or dug a connection and let it flow inland through the dry empty deserts this will help the sun to evaporate the h20 and release the O2 and H in the Dryland to form a cloud this section of land is hot because the sun cant get anything much of water and if there's is a passing gray clouds it's a potential to rain i remember 2 decades ago i heard news some airforce drop a cargo of salt in the clouds to rain to cool the land what more can a country w/ a capability in air or land can do it"instead of using their plane for test flight only they can carry the toppings to season the gray potential clouds to rain you can be a rainmaker is that cool'' YAP

2007-07-23 06:03:57 · 3 answers · asked by Anonymous in Earth Sciences & Geology

2007-07-23 06:03:56 · 2 answers · asked by Anonymous in Physics

-35/1/7?

2007-07-23 06:03:11 · 5 answers · asked by Anonymous in Mathematics

thanks for your help

2007-07-23 06:01:03 · 11 answers · asked by gaviscon 4 in Weather

-8(2m to tha second+m)

2007-07-23 05:59:59 · 2 answers · asked by Anonymous in Mathematics

2007-07-23 05:59:19 · 4 answers · asked by Anonymous in Physics

Every time I touch the metal file cabinet at work, I always get shocks. They hurt my fingers. I also shock people I touch at work. This always happens! It's annoying! How do I reduce the amount of electricity I generate?

2007-07-23 05:57:34 · 8 answers · asked by Amma's Child 5 in Other - Science

If a lead acid battery is rated 50Ah, this means that it can provide continuously to a 10A load during 5hrs or full 50A to a load during one hour.But, does that also means that it can provide 100A to a load during 30 minutes?Or 3000A during 1 minute???

2007-07-23 05:56:38 · 6 answers · asked by Anonymous in Engineering