Thursday

November 27, 2014

November 27, 2014

Total # Posts: 220

**math**

540 kg of dry concrete mixture is to be spread over three surfaces in the ratio equal to that of their areas.If their areas are 9 square m,11 square m and 16 square m,how much is used on each surface?
*October 2, 2011*

**math**

lim (2x^2+3x-2)/ (2x-1) the lim is x->1/2 [ans:5/2 but i get 3/2) can someone show me the calculation work.
*July 20, 2011*

**math**

lim (7-6x^5)/(x+3).... the lim is x->+infinity [ans=-infinity but i get 0] can someone show me the calculation work.
*July 20, 2011*

**math**

f'(x).... y=(e^x-e^-x)/(e^x+e^-x). I need the calculation work. [ans: 4/(e^x+e^-x)^2]
*July 20, 2011*

**chem**

a mixture of 50g of S & 1x10^2g of Cl2 reacts completely to form S2Cl2 &SCl2. Find the mass of S2Cl2 formed.
*July 20, 2011*

**Chemistry**

An electron ps from the 6th to te 3rd energy level in the hydrogen atom: a) calculate the wavelength b) calculate the frequency c) calculate te enrgy d) into which spectral series would the photon be grouped? (i really just need to formulas, then i could solve myself...)
*May 23, 2011*

**Managerial Accounting**

true
*May 13, 2011*

**URGENT - History**

I tried that!
*May 11, 2011*

**URGENT - History**

Hi, Okay, so where can I get other cartoons on Stalin? I was searching like forever to find that one. Thanks for all your help
*May 11, 2011*

**URGENT - history**

Based on what you know do you think I should reference it as from Getty Images, or should I ditch it and try to find another one?
*May 10, 2011*

**URGENT - history**

Heya The Cartoon on Getty Images, Cosy Communist circa 1940. I'm trying to find where it was originally published and who originally drew it so that I can put that in my research journal. We are graded on our research journal and it documents like all our research. I need ...
*May 10, 2011*

**math**

what are the factors of 22x^2+66x-220?
*May 1, 2011*

**algebra**

Stacey throws two dice. The difference in face value between the two dice is three, and the product of the numbers thrown is equal to twice the sum of the two numbers. Show and solve an alebraic equation that finds the numbers Stacey threw.
*April 27, 2011*

**US History**

The cold war/red scare.
*April 24, 2011*

**Maths**

Hey! Okay so when the weather reporters say that ?mm of rain fell over night, they're talking about mm cubed aren't they? So while I was working out what to cube root to find out the ?mm of rain that fell overnight, I called it Rainfall mm. So what could I call the ?mm...
*April 24, 2011*

**maths**

how do you do taking away fractions like for eg 2 1/5 take away 1/10
*March 31, 2011*

**chemistry**

a liquid has an enthalpy of vaporization of 30.8 kg.mol. at 273 K it has a vapor pressure of 102 mmHg. What is the normal boiling point of this liquid
*February 17, 2011*

**chemistry**

a liquid has an enthalpy of vaporization of 30.8 kg.mol. at 273 K it has a vapor pressure of 102 mmHg. What is the normal boiling point of this liquid
*February 17, 2011*

**Modern World Studies**

i thought 1 was Romanticism?
*February 10, 2011*

**algebra**

write a quadratic equation in the variable x having given the numbers as sollutions type the equation in standard form ax^2+bx+c=0. solution 4 only solution
*February 8, 2011*

**Math**

Actually, Maybe I've got it. Is it 100(700)+20000=90,000 It will cost $90,000 to make 700 items.
*February 1, 2011*

**Math**

The Mathematical model C(x)=100x+20,000 represents the cost in dollars a company has in manufacturing x item during a month. Base on this, how much it does it cost to produce 700 item? Sorry, I did not put the whole question up
*February 1, 2011*

**Math**

How do I solve this? I don't even know where to begin.
*February 1, 2011*

**Math**

The Mathematical model C(x)=100x+20,000 represents the cost in dollars a company has in manufacturing x item during a month.
*February 1, 2011*

**economics**

yes
*January 26, 2011*

**chemistry**

I need to find out which structure is more correct: Reaction of the compound C3H8O with CrO3 (oxidizing agent) yields acetone. Which of the three structures is more correct? (My three structures are as follows: 1-propanol, 2-propanol, and methylethyl ether.)
*January 18, 2011*

**algebra**

provide me with a radical expression to simplify
*January 17, 2011*

**algebra**

Mike would like to plant some trees so he needs to use a portion of his existing yard. The perimeter of this rectangular portion needs to be 14 yards and the diagonal is 5 yards. Can you help Mike determine the length and width of this new portion? Mike requested that you show...
*January 16, 2011*

**English**

As she flipped through the newspapers, she saw headlines such as "Food shortages hit Mitika," "Hurricane departs coastline," and "Elkwood ravaged by flooding." Is my apostrophe and comma usage correct? Newspaper headlines are supposed to be ...
*October 17, 2010*

**algebra**

the value is 49, not sure what there asking for in the second part, unless it's just asking you to show your steps.
*October 14, 2010*

**algebra**

0.0025934041088830740483370627371053
*October 14, 2010*

**Chemistry**

1st one is right, the second one cant be right because there is no H on the left side.
*October 14, 2010*

**Math**

x+1 - x+2 = ? --- --- 2x-8 12-3x
*October 3, 2010*

**H. Physics **

7.6km at a 26 degree angle ussing signifigant figures
*September 29, 2010*

**11th grade**

in 5.5? two
*September 27, 2010*

**Math**

2d+8=24
*September 12, 2010*

**math**

Find the standard deviation for the given data. Round your answer to one more decimal place than original data. 2,5,47,11,13,48,39,36
*September 3, 2010*

**math**

Consider the following students method of solving the proportion 8/5 = 20/x and determine whether the methods were correct: Richie: First I divided 20 by 8 and got 2 1/2. Then I multiplied 2 1/2 by 5 and got 12 1/2 for my answer. Martha: I think of it this way. Every time a ...
*August 11, 2010*

**Math**

Factor: X⁸ + 2x©ùy©ù + 9y⁸
*July 22, 2010*

**college**

while a patient is having surgery,his doctor notices a small mole.The doctor doesn't think the mole is anthing to worry about,but he decides to remove it to perform a biopsy.What is the doctor guilty of?
*July 9, 2010*

**Speech**

Hi. I have to write a speech for student council vice president...this is what i have. tell me what you think! Hi! I’m Ella and I would like to be your student council vice president. You should vote for me because I am responsible, creative, good with people, and I would...
*May 5, 2010*

**math**

Verify that the circles x2+y2 = 25 and (x−5)2+(y−10)2 = 50 intersect at A = (4, 3). Find the size of the acute angle formed at A by the intersecting circles. You will first have to decide what is meant by the phrase the angle formed by the intersecting circles.
*April 25, 2010*

**Geometry help**

A parallelogram has a 7-inch side and a 9-inch side, and the longer diagonal is 14 inches long. Find the length of the other diagonal. Do you need your calculator to do it? then, (Continuation) Evaluate 72 + 92 + 72 + 92 − 142 − d2, where d is the length of the ...
*April 21, 2010*

**Geometry need help pls**

A. A parallelogram has a 7-inch side and a 9-inch side, and the longer diagonal is 14 inches long. Find the length of the other diagonal. Do you need your calculator to do it? B. (Continuation) Evaluate 72 + 92 + 72 + 92 − 142 − d2, where d is the length of the ...
*April 21, 2010*

** medical terminology**

I read over my material and iam not sure if they are asking or really what they are asking. maybe what are any five terms that have to do with the muscuoskeletal system?
*April 2, 2010*

** medical terminology**

devise memory aids for any five terms relating to the musculoskeletal system
*April 2, 2010*

**Help Plz**

i need help finding the similarities & differences between passover and easter. thnx ella
*January 7, 2010*

**math**

Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. (Round your answer to the nearest cent.) $3,000 balance, 21% rate, $150 payment, average ...
*January 7, 2010*

**English**

When do I capatilize the word aunt? I think it's: This is my Aunt Marrianne. Is that right or is the a lowercase? Please explain. Thank You
*December 3, 2009*

**Science**

I am in 6th grade and doing very well so i am not stupid or anything but i dont know if my science fair project is for my grade level. It's What Makes Ice Melt The Fastest. What Do You Think? Thnak You
*November 16, 2009*

**Calculus**

Solve the IVP {y'=-(sinx)y + xexp(cosx) y(0) = 1 Please show me step by step. Do I need to find out if this is exact? Do I use an integrating factor?
*October 7, 2009*

**S.S.**

thnx but i don't think that i am allowed to right about a mmovie thats coming out. anything else? if not thats fine too. thnx soooooooooo much!
*October 1, 2009*

**S.S.**

I need help finding a curent event. It has to be a national advancement in medicine that happened anywhere from this past Sunday to today. plz help thnx -ella
*October 1, 2009*

**english **

what is an adjustment letter?
*September 23, 2009*

**Language Arts (2nd Grade)**

Question: Name 10 Community Things You Can Do To Help The Earth. I Cant Think of Any!! Help
*September 18, 2009*

**chemistry**

Potassium perchlorate has a lattice energy of -599 kj/mol and a heat of hydration of -548 kj/mol. Find the heat of solution for potassium perchlorate when 10.6 g of potassium perchlorate is dissolved with enough water to make 102.7 ml of solution. (J-absorbed) find the ...
*September 18, 2009*

**Chemistry**

The U.S. Food and Drug Administration (FDA) recommends that adults ingest less than 2.4 g of sodium per day. How many liters of softened water, containing a sodium concentration of 6.0×10−2 percent sodium by mass, have to be consumed to exceed the FDA ...
*September 17, 2009*

**Social Studies**

What is the mountain range that stretches across west virginia? thnx
*September 13, 2009*

**math**

i can't figure out how to do this problem: 3(y-4)=-2y-12
*September 6, 2009*

**Science**

Are there such things as pink sheep or is there fur dyed pink?
*June 30, 2009*

**Legal Aspects of Health Information**

If a doctors computerized medical records are compromised by a hacker, who is liable?
*May 27, 2009*

**Legal Aspects of Health Information**

A doctor applies for medical staff privileges at a hospital. What is the hospital administrator required to do?
*May 26, 2009*

**Legal Aspects of Health Information**

Judge Jones is hearing a motion to order release of substance abuse records pursuant to a subpoena....Where should the hearing take place/
*May 26, 2009*

**Health Information Management**

At what point during the course of treatment of a new patient should notice of use and disclosure of health information, required under HIPAA, be given?
*May 21, 2009*

**Medical Law**

What is the difference between contributory negligence and comparative negligence?
*May 20, 2009*

**Legal Aspects of Health Information**

Jane Doe does not want her violent boyfriend to know shes getting an abortion. She asks Dr. John to send all communications to her to a post office box and to only call her at work. What should Dr John do, and what is the legal basis?
*May 19, 2009*

**Confidentiality of Health Information**

Jane Doe does not want her violent boyfriend to know shes getting an abortion. She asks Dr. John to send all communications to her to a post office box and to phone her only at work. If he doesnt, Dr.John could be endangering her. What should Dr. John do, and what is the legal...
*May 19, 2009*

**math**

If you are finding the volume of a cylinder, but the cylinder has a base instead of a diameter or radius... what would you do?
*April 29, 2009*

**child care**

hi im doing my assignment in child care level 3 and i need to answer this question ,(describe ways that parents may participate in a pre school's activites to promote their children's learning and development) and (discuss how a pre school can encourage parents to ...
*April 23, 2009*

**Please proofread**

Do you think my report will be long enough? Mabye I can try to split it off into five paragraphs. Thank you for the advice. I am going to enter it in a writing contest because it is awsome and I am going to publish a book some day. It will be called 'Fun With Old Paint'...
*April 12, 2009*

**Please proofread**

Please look over my report and let me know if their are any mistakes and if it is a good one. THanx Abraham Lincon was born in 1809. He was the 16th president. He was a good and nice president. He led us through a big,bad,and super scary war. He had four kids. He was married ...
*April 12, 2009*

**chemistry**

When the water or sweat evaporates it takes heat with it.
*April 12, 2009*

**Religion**

Is there a certain age you should be when you give thing up for Lent or should you give something up at any age?
*March 22, 2009*

**American History Honors**

How did John D. Rockefeller contribute to American History? -- a paragraph, please
*March 9, 2009*

**American History Honors**

Thank you!! It helped a lot!
*March 1, 2009*

**American History Honors**

I need to present the most important facts about immigration in the 1920's. i.e. what acts where passed, who was for/against it, did immigration increase or decrease, etc. About 7 facts, no more than 10 -- this is for a "teach the class" assignment.
*March 1, 2009*

**science**

I need to find at least 3 traits that are common to humans... could someone please help?!?
*January 11, 2009*

**help plzzz**

a line of chorus girls
*December 3, 2008*

**HISTORY!!!**

I did but i couldnt find the answers?!?
*December 2, 2008*

**HISTORY!!!**

I have this test tomorrow and i have yo do this study guide and i dont no two of the questions... they are... what did the progressives support and what dod they oppose in the progressive era?!? three things for what they supported and one thing for what they opposed
*December 2, 2008*

**HISTORY!!! This is due 2morow!!!**

What are the differences between the MOnroe Doctrine and the Roosevelt Corollary?!?
*November 23, 2008*

**SCIENCE!!!**

Explain how each of the following cell's structure is related to it's function Red blood cell- Nerve cel- Musle cell-
*November 22, 2008*

**math**

you line the decimals up and then you lust add like you would with regular numbers
*November 22, 2008*

**SCIENCE!!!**

What are the organizational levels of a bird from smallest to largest?!?
*November 20, 2008*

**4th grade English**

No unless it is starting a sentence.It is a proper noun.
*November 20, 2008*

**SCIENCE!!!**

OKay... Thankyou!!!
*November 18, 2008*

**SCIENCE!!!**

Do leaf tissues and root tissues look alike? If not why?!?
*November 18, 2008*

**SCIENCE!!!**

Do plant cells have cell walls?!?
*November 16, 2008*

**science!!!**

so it is not a plant cell?
*November 16, 2008*

**science!!!**

Is a prokaryotic cell a plant cell?!?
*November 16, 2008*

**HISTORY!!!**

How did the Dawes Act affect the Native Americans?
*October 16, 2008*

**HISTORY!!!**

How did the government limit the movement of native americans?
*October 16, 2008*

**HISTORY!!!**

What is the culture of the PLains Indians?
*October 16, 2008*

**Physics HELP!**

A mountaineer estimates the depth of a crevasse by dropping a stone and listening for sound when the stone hits the bottom. The speed of sound in air is 340m/s. If the sound is heard 10s after the stone is dropped, what is the depth of the crevasse? Do you find velocity first...
*October 2, 2008*

**physics- uniform acceleration**

The speedometer of a uniformly accelerating car is read as it crosses each of three equally spaced lines. The reading is 30km/h at the first, 40km/h at the second. What is it at the third? I tried to turn this into an equation but didn't know how. Would you use V2^2 = V1^2...
*October 2, 2008*

**physics- kinematics**

General question- when do you use NEGATIVE for 9.8m/s^2? Even when the questions says "an object is thrown up in the air from top of the building, on its way down, it misses the building and falls to the ground below." If you do use a negative value, why is that?
*October 2, 2008*

**Physics: Non uniform motion**

wait.. i didnt get the right answer. i got 530 m in teh 10th second and then 432.9 in the 9th subtracted, they give 97.1 but the answer should be 38 m?
*October 2, 2008*

**macroeconomics**

Year - 2000 Nominal GDP: 9,817 Real GDP: ___________ GDP Deflator: 1 Inflation 2.2 Real GDP Per capita: _________ Population 283.7 Year – 2001 Nominal GDP: ________ Real GDP: 9,891 GDP Deflator: _________ Inflation 2.4 Real GDP Per capita: _________ Population 286.6 Year ...
*September 23, 2008*

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