Wednesday

January 28, 2015

January 28, 2015

Total # Posts: 6,438

**Foreign languages**

I forgot to add these sentences. Thank you very much, Writeacher. 1) He spends more on train tickets than he actually earns by working as a support teacher. 2) Pamela is an epistolary novel made up of 32 letter in which the girl tells her parents about her life as a noble ...
*May 20, 2012*

**Art**

Thank you, Writeacher. I checked the sentece you couldn't understand and I added a few other things. 1) He was responsible to the king for the governement's policy. 2) The horses, which Gulliver meets in his fourth voyage, are described as beautiful, strong, fast and ...
*May 20, 2012*

**Foreign languages**

I left out a few sentences. Thank you veru much. I need to make sentence 5 shorter. 1) In 1766 William Pitt the Elder was elected Prime Minister and he made England a strong and flourishing commercial country. 2) During the 18th century the middle class gained more and more ...
*May 19, 2012*

**Foreign languages**

I would like you, Writeacher to help me check a few sentences. Thank you. 1) English Parliament was divided into two parties: the Whigs and the Tories. The former descended from the Parlamentarians. 2) They encouraged commercial and trade (?) progress and were supported by the...
*May 19, 2012*

**Econ**

Suppose the government wants to reduce the total pollution emitted by three firms in its area. Currently, each firm is creating 4 units of pollution in the area, for a total of 12 pollution units. The government wants to reduce total pollution in the area to 6 units. In order ...
*May 19, 2012*

**Art**

Writeacher, I urgently need you to check these sentences. Thank you. 1) They got him to give back the animal: He was persuaded to give back the animal. They had him give back the animal: He was requested (kindly invited) to give back the animal. 2) He forgot closing the door...
*May 19, 2012*

**Art**

I still have a few things I'd like you to consider, Writeacher. Thank you very much. 1) She refused to go to the dentist's We are planning to move into a new house. 2) They offered me to go for a week in Egypt: They offered to let me go to Egypt for a week. They ...
*May 17, 2012*

**Health**

I left out this part. Thank you very much, Writeacher. 1) Have you received any news about our common project? How are things getting on in England? When do school holidays start in England? 2) When do you think we will know if the Commission has approved our project? Please ...
*May 17, 2012*

**Art**

I left out these sentences. Could you please check them, too? Thank you. Is punctuation OK? 1) People suppose that he worked for Fiat. He is supposed to have worked... 2) Someone asked her about the weather. 3) My parents let me go on holiday on my own. 4)I’m terribly ...
*May 17, 2012*

**Art**

Can you please check these sentences, Writeacher? Thank you very much. 1) “I have been to Greece twice," he said. (He said that he had been to Greece twice) 2) It was the first time I had spent my vacation without my parents. Mary had done all the cleaning before/by ...
*May 17, 2012*

**calculus**

a rectagular sheet of metal has perimeter 36 meters. maximize the volume if the sheet is rolled into a cylinder
*May 16, 2012*

**algebra**

Determine which pair(s) of function(s)represent inverses of each other. 1. f(x)= 8x+1 g(x)= 8x-8 2. f(x)= 3x+2 g(x)= x-2/3 3. f(x)= 5x+2 g(x)= x/5-2
*May 16, 2012*

**algebra**

Given f(x)= x^2-4 and g(x)= x^1/2, what is the domain of (g 0 f)(x)?
*May 16, 2012*

**Art**

I left out the following sentences. Thank you Writeacher. 1) The objective correlative is a phrase coined by Eliot himself, who maintained that poetry must be objective, impersonal, and images are the objective correlative of the emotions they aim to suggest (they evoke?). 2) ...
*May 16, 2012*

**Art**

I urgently need you to check these sentences. Thank you. 1) Focus on Richardson’s Pamela and answer briefly the following questions. 2) What does Pamela recount to her mum in letter XV? 3) What does Mr B accuse her of and how does she apologize herself to him? 4) What ...
*May 16, 2012*

**Art**

Thank you, Writeacher. Could you please check if everything is possible? 1) What does Pamela recount to her mum in letter XV? What does Mr B accuse her of and how does she apologize herself to him (or justify her behaviour)?
*May 16, 2012*

**Foreign languages**

I left out the following sentence. Thank you. 1) I think you should show the text message to your teacher and ask his advice about what to do. (ask him for advice.... is it possible?)
*May 16, 2012*

**Foreign languages**

Writeacher, could you please check these sentences on school rules? Thank you very much for your invaluable help. 1) You must be respectful of your classmates and of your teachers. You should stand up when teachers (or your teachers?) enter the classroom. 2) You mustn't ...
*May 16, 2012*

**Art**

I left out the following sentences on school rules. I really hope you can have a look at them, Writeacher! 1) I'm writing this letter because I would like to tell you some of the rules at my school. I hope you'll do the same. 2) You mustn't change or modify marks ...
*May 15, 2012*

**algebra**

Given f(x)= 5x^3-9, find the inverse of f, f^-1(x)=?
*May 14, 2012*

**algebra**

If f(x)= x^2-2, then f(x+h)=?
*May 14, 2012*

**Art**

Could you please check these examples and tell me if the sentences in brakets are possible? Thank you , Writeacher 1)Her boss is going to ask her out for dinner next Saturday. 2) The line is engaged. Would you like to hold? (Not: would you hold?) 3.Our coach told us that the ...
*May 14, 2012*

**Art**

Could you please check these few examples? Thank you very much, Writeacher. 1) It is likely that he will pass his driving test. He is likely to pass his driving test. He should pass it. 2) I'm unsure that (if) I will pass it. I might pass it. It is possible that I will ...
*May 14, 2012*

**Art**

Have I fixed the run-on? Thank you very much, Writeacher. I added a few more sentences. 1) John doesn't have to take the car. We can walk to school. 2) Have you received any new emails from my students? How many have you got so far? 3) What are you students learning in ...
*May 14, 2012*

**Foreign languages**

Thank you, Writeacher. I left out the following sentences. Thank you very much. 1) Who has called the wrong number? His team has always been (or have always been?) worse than the others. 2) Have you read that book yet? No, I haven't finished it yet. 3) I've never flown...
*May 14, 2012*

**Art**

Writeacher, could you please check these sentences? Thanks. 3) It takes him half an hour to drive to school. 4)He has called the wrong number. 5) He paid 300 Euros for his wedding’s suit. 6) I phoned Mary yesterday morning. He started reading his new his new book three ...
*May 14, 2012*

**algebra**

how do i round 2/15 to the nearest tenth, hundreth and thousanth?
*May 13, 2012*

**Health**

I left out two last sentences, Writeacher. Could you please check them? 1) I have no credit on my phone. I need to top it up. 3) They are trying out a new vaccine against cancer.
*May 13, 2012*

**Art**

I would like you to check these last sentences? Thank you very much Writeacher. 1) They had an argument but they made it up. 2)They held up a bank but they managed to get away with it. 3) He needn't have bought a new map. 4) It wasn’t necessary for her to follow her ...
*May 13, 2012*

**Foreign languages**

Writeacher, could you please check these other sentences. Thank you. Fill in the blanks with a suitable preposition. 1) I regret ….. inform you that you didn’t pass your FCE test. 2) Lucy dreams of………(go) to live in Australia. The fire officer warned ...
*May 13, 2012*

**Math**

The cars in a car service use a total of gallons of gasoline per week. If each of the cars uses the same amount of gasoline, then, at this rate, which of the following represents the number of gallons used by 5 of the cars in 2 weeks? A. 10CG B. 2G/5C C. 5G/2C D. G/10C E. 10G/...
*May 12, 2012*

**math**

ok, let's make 6 equal to a number over 5. x/5=6. Since 5/5 is equal to one, to get 6 ones over 5, we multiply the numerator of 5 by 6. 5x6=30 so 6 equals 30/5. now let us ADD 1/5 to both sides to make: a/5=31/5 multiply by 5 to cancel out the denominators. we get a=31 so ...
*May 12, 2012*

**CHEMISTRY**

CaC2 (s) + 2 H20 (g) -> Ca(OH)2 (s) + C2H2 (g) The complete reaction of 22.7 g of CaC2 requires consumption of ________g of H2O. I did 22.7 g CaC2* (2/64 mols CaC2) = .709 Right?!?!
*May 12, 2012*

**CHEMISTRY!**

Thankyou!
*May 12, 2012*

**CHEMISTRY!**

Pure copper has a density of 8.933 g/cm^3. What is the volume of a 5 g block of copper? I did D=M/v Flipped the formula to V=M/D V= 5g/8.933 (g/cm^3) so that equals .56 cm^3 Right?!?
*May 12, 2012*

**CHEMISTRY**

Are these listed in the correct order of increasing average molecular speed? NH3<N2<CO2<SO2<Cl2 ???
*May 12, 2012*

**CHEMISTRY**

A Sample of gas originally at 25 degrees C and 1 atm pressure in a 2.5 L container is allowed to expand until the pressure is .85 atm and the temperature is 15 degrees C. What is the final volume of gas? Did anyone get 2.6 L
*May 12, 2012*

**CHEMISTRY**

I must have miss entered something! Thanks.
*May 12, 2012*

**CHEMISTRY**

A Sample of gas originally at 25 degrees C and 1 atm pressure in a 2.5 L container is allowed to expand until the pressure is .85 atm and the temperature is 15 degrees C. What is the final volume of gas? Did anyone get 2.6 L
*May 12, 2012*

**CHEMISTRY**

Is CF4 an example of a central atom with an expanded octet?
*May 12, 2012*

**CHEMISTRY**

I get 61. But after that then what?
*May 12, 2012*

**CHEMISTRY**

Determine the pressure in atm for a 10 g of CO2 sample contained in a sealed 10 L tank at 50degrees C? Did anyone get 26.5 atm?
*May 12, 2012*

**CHEMISTRY**

Thats what I did! THANK YOU!
*May 12, 2012*

**CHEMISTRY**

A mixture of Xe, Kr, and Ar has a total pressure of 6.7 atm. What is the mole fraction of Kr if the partial pressures of XE and Ar are 1.6 atm and 2.8 atm? Did anyone get .343 ?
*May 12, 2012*

**composition(paraphrase this paragraph)**

Much of the gap between the schooling of orphans and non-orphans is explained by the greater tendency of orphans to live with more distant relatives or unrelated caregivers.
*May 11, 2012*

**statistics**

Suppose that 98% of your customers in your market have internet access and you select a random sample of 500 customers. What is the standard error of the proportion of customers who don’t have internet access? I seem to be struggling with no standard deviation listed
*May 10, 2012*

**english**

Please read the following excerpt from an essay, and answer the question that follows. Biologically, adolescence is marked by hormonal changes that produce secondary sexual characteristics. These include breast development in females and beard growth in males. (Psychologically...
*May 10, 2012*

**Statistics**

Compute a one-way ANOVA - Give the source table, test null hypothesis at .05 level. Please explain the steps to solving this. Group 1: 26, 34, 46, 48, 42, 49, 74, 61, 51, 53 EX 1 : 484 Ex 1^2 : 25,024 n = 10 Group 2: 51, 50, 33, 28, 47, 50, 48, 60, 71, 42 EX 2 : 480 EX 2^2 : ...
*May 9, 2012*

**math**

which equation = (1,1)and(0,-1)and (-2,-5) A.y=2x-1 orB.y=x-1 0r C.y=2x+1 or D. y=x+1
*May 9, 2012*

**Chestry**

Yes chemistry
*May 8, 2012*

**Chestry**

If there are 8.8 moles of h2 and co2 in a 500 ml container at equilibrium how many moles of co and h2o would be present?
*May 8, 2012*

**english**

i have to do an english presentaion for my grade 12 class about a book that i was assigned, how can i involve the class in my presentation?, the book i had to read is called "fall on your knees"
*May 8, 2012*

**math**

oh didnt see the the last sentence
*May 7, 2012*

**math**

7 hours
*May 7, 2012*

**math**

A telephone pole casts a shadow 16 feet long at the same time that a man 6 feet tall casts a shadow of 2.4 feet. How tall is the pole?
*May 7, 2012*

**Algebra**

120 meters of fencing is used to fence 3 sides of a dog park against an existing wall. if the width of the park is w, find the length of the field in terms of w
*May 6, 2012*

**physics**

during a process, 21.6 MJ of heat is added to closed system. if the internal energy is increased by 59.6 MJ, how much work in Btu was done? is the work done on ro by the system?
*May 5, 2012*

**algebra 2**

by gruoping...!!
*May 5, 2012*

**phi 103**

I brought a pair of shoes from that store that immediately fell apart. their shoes are no good. Does this falls under Begging the question fallacy?
*May 5, 2012*

**Chemistry!!**

1) Write balanced chemical equation for the oxidation of Fe^2+(aq) by S2O6^2-(aq)? 2)Write balanced chemical equation for the oxidation of Fe^2+ by N2O 3)Write balanced chemical equation for the oxidation of Fe^2+ by VO2+
*May 4, 2012*

**math**

Solve this system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions 3a+5b=-19 5a-27b=145
*May 3, 2012*

**English II - Animal Farm**

My assignment is to find the human vice that each of the seven commandments intended to prevent in the novel, Animal Farm. First, I do not know what human vice the following two are supposed to prevent: Whatever goes upon two legs is an enemy. Whatever goes upon four legs, or ...
*May 3, 2012*

**math**

how long will $600K last, assuming it earns 6% a year with a withdrawl of 4% annually and inflation rate of 2%
*May 2, 2012*

**math**

Name the point of intersection for the following system, if it exists. Your answer will be an ordered pair, no solution, or infinitely many solutions. 4x-3y=-3 3x-y=-6
*May 2, 2012*

**PHYSICS**

a uniform stick weighing 50Newton is suspended from the ceiling while the other end of it rests on the floor and making an angle 60degree along with horizontal. the string makes a 15 degree angle with the vertical. find the minimum value of the coefficient of static friction ...
*May 1, 2012*

**physics**

a person 0f mass m = 60 kg walks along the radius from the periphery to the center of a circular platform of moment of inertia= 200kgm square and radius r = 3m. the disk is a rotating frictionless with angular velocity= 0.3 rad\s.find the angular velocity of the system when ...
*May 1, 2012*

**Chem**

If 20.0 L of a gas is cooled from 373 K to 273K, what is the new volume?
*April 30, 2012*

**english**

hey I'm a 9th grader and my english teacher give me a summative homework about rumors. He need us to write a problem that happen in school and also want us to answer or solve the problem about rumors.. I need help with it because I know nothing about rumors..
*April 30, 2012*

**math**

Name the point of intersection for the following system, if it exists. 4x – 3y = -3 3x – y = -6
*April 30, 2012*

**@elena**

nvm, i did it wrong. i already got the answer its 79% thanks
*April 29, 2012*

**@elena**

thank you so much help with the problem. i have trouble solving part b of the problem you helped me with. it told me to give it as a percentage, I got 10% but it is wrong. can you please help me Superman must stop a 190-km/h train in 180m to keep it from hitting a stalled car ...
*April 29, 2012*

**college physics**

i got it its 79% i was label some of the numbers with the wrong variables. tahnks and will keep that in mind
*April 29, 2012*

**@elena Question !**

for part b, what would be the percentage. i got 10% but it isnt right
*April 29, 2012*

**college physics**

Superman must stop a 190-km/h train in 180m to keep it from hitting a stalled car on the tracks. part a)If the train's mass is 3.8×10^5kg , how much force must he exert (find the magnitude)? part b)Compare to the weight of the train (give as %). partc) How much force...
*April 29, 2012*

**uniben**

do it urself
*April 29, 2012*

**math**

expand as a binomial series (r-p)^9
*April 28, 2012*

**math**

An exam consists of two parts, Section X and Section Y. There can be a maximum of 80 questions. There must be at least 20 more questions in Section Y than in Section X. Write a system of inequalities to model the number of questions in each of the two sections. Then solve the ...
*April 28, 2012*

**math**

When a person is swinging the amplitude (the swings"s distance above it's rest position) increases with each pump. According to Scientific magazine the amplitude increases by adding a constant when the person pumps sitting down, and by multiplying by a constant when ...
*April 27, 2012*

**chemistry**

(ppm and ppb are sooo not easy for me to get)c A saturated solution of PbCO3 contains 0.00011 g PbCO3 in 100. g of water. What is this concentration in parts per million?
*April 26, 2012*

**chemistry**

Most community water supplies have 0.50 ppm of chlorine added for purification. What mass of chlorine must be added to 134.0 L of water to achieve this level? anwser grams
*April 26, 2012*

**chemistry**

A sample of water is analyzed and found to contain 18.6 ppb of arsenic. If a person were to drink 2.0 L of this water per day for 1.4 years, what is the maximum amount of arsenic they could accumulate in their body? Assume that 1 year = 365 days anwser________ grams or arsenic
*April 26, 2012*

**biology **

1,Why do autotrophs always occupy the lowest level of ecological pyramids? 2.Explain how the growth of one population can bring about the disappearance of another population during succession? 3. Describe some common plants and animals from a tropical rain forest and a ...
*April 26, 2012*

**chemistry**

4NH3(g)+5O2(g) yield 4NO(g)+6H2O(g) Deduce the equilibrium constant expression for the reaction.
*April 26, 2012*

**Chemistry**

A 2.7 M solution of phosphoric acid (H3PO4) is to be reacted with a 7.5 M solution of sodium hydroxide to make sodium phosphate and water. How many L of the H3PO4 solution will react with 0.662 L of the NaOH solution
*April 25, 2012*

**life orintation**

8 ways in which the environment impacts communities
*April 24, 2012*

**Mechanics problem - Newtons laws - resultant force**

I have this mechanics problem. Please help me solve it. Rory, Aurora and Raoul are three lions fi ghting over a piece of meat of mass 12 kg. Each lion exerts a horizontal pull. Rory pulls with a force of 800 N. Aurora, who is 120degrees to Rory's right, exerts a force of ...
*April 24, 2012*

**l.o**

identify and describe one environmental proble that causes ill health,accidents,crises,and disasters within your community or any other community within south africa or globally
*April 23, 2012*

**calculis**

Find the equation of the tangent line to the curve y=e^2x + 4x at the point (0,1)
*April 23, 2012*

**calculus**

Find the equation of the tangent line to the curve y=e^2x + 4x at the point (0,1)
*April 23, 2012*

**math**

a cubical container is half filled with water if the volume of water in the container is 500cm3 find the length of one edge of container?
*April 23, 2012*

**math**

a rectangular tank has the measurement 60cm wide and 2000cm2 water flows into the tank at the rate of 8 liters per minutes how long will it take to fill the tank?
*April 23, 2012*

**math**

a rectangular swimming pool is 30m wide and 50m long if the 600m of water is added to the pool what is the increase in the height of the water level in centimeters?
*April 23, 2012*

**math**

A rectangular box is 16cm long and 10cm wide 960 1-cm cubes can fit into the box exactly what is the height of the box?
*April 23, 2012*

**Physics**

Anyone else from SF have to google this question, or was i the only one?
*April 22, 2012*

**pre-calc helpppp**

Find sin x/2, cos x/2, and tan x/2 from the given information. (show work please) thank you!!! cos x = − 4/5, 180° < x < 270°
*April 21, 2012*

**pre-calc helpppp**

thank you so much!!!!
*April 21, 2012*

**pre-calc helpppp**

Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula. ã((1-cos50)/2)
*April 21, 2012*

**pre-calc helpppp**

Thank you!!!!
*April 21, 2012*

**pre-calc helpppp**

Evaluate the expression under the given conditions (show steps please) sin(è/2); tan è = − 5 / 12 , è in Quadrant IV
*April 21, 2012*

**Chemistry!! Help**

Consider the following equilibrium: N2O4 <=> 2NO2 You may assume that delta H and delta S do not vary with temperature. At what temperature will an equilibrium mixture of 1 atm total pressure contain twice as much NO2 as N2O4?
*April 20, 2012*

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