Friday
April 18, 2014

Posts by MIKE


Total # Posts: 3,111

algebra
SUBSTITUTE THE VALUE IN THE PARENTHESES FOR X - 3 TIMES FOR 5, 50 AND 120

chemistry
calculate the percent composition of the compound that forms when 222.6 g nitrogen combines completely with 77.4g oxygen.

Physics
A student standing on the ground throws a ball straight up. The ball leaves the student's hand with a speed of 13m/s when the hand is 2.3m above the ground, how long does it stay in the air?

Algebra 2
If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the first equation is substituted into the second equation. x – 2y = 2 x + 3y = 17

calculus
can not figure out problem. (the area of the region in the first quadrant between the graph of y=x sqrt (4-x^2) and the axis is ? a(2/3)sqrt2 b 8/3 c 2sqrt2 d 2sqrt3 e 16/3

chem
A 75.0 mL volume of 0.200 M NH3 (Kb=1.8x10^-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 28.0 mL of HNO3.

chem
A 75.0 mL volume of 0.200 M NH3 (Kb=1.8x10^-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 28.0 mL of HNO3.

Economics
In long-run equilibrium there will be no economic profit in a purely competitive static economy because: 1- barriers to entry will prevent profit from arising. 2-there will be no uncertainty, no innovations, and no monopoly. 3- there will be no need for professional managers a...

Economics
how did u find it

Economics
thanks

Economics
Suppose you deposit $5,000 in a bank which pays 10 percent interest compounded twice a year. The actual annual interest rate you receive is: a- 10 b-11 c-10.25 d-12

Math
People make mistakes. Calm down. A=P(1+r)^t A= interest P= principle interest r= interest rate t= time in years If $4500 invested at 7% interest compounded annually yeilds $15600, for how many years was the money invested?

Math
A=P(1+r)^2 A= interest P= principle interest r= interest rate t= time in years If $4500 invested at 7% interest compounded annually yeilds $15600, for how many years was the money invested?

Math
if u can give me an example if i select on how many people did not have college degree

Math
Select a variable (mean or proportion) of interest to you and collect or find the data. BEFORE you collect the data, decide what a likely mean or proportion might be. Then address the following (and a little more) in your project. a. Write a brief statement of the purpose of t...

Chemistry
The lethal inhalation dose of sarin for a 200lb person has been determined to be 0.0015 mg. Determine the LD50 of sarin that researchers used to calculate this lethal inhalation dose.

differential equations
Search: A 8 kg mass is attached to a spring hanging from the ceiling and allowed to come to rest. assume that the spring constant is 40 n/ m and a damping constant is 3 N/m. At t=0 and external force of 2 sin(2t+PI/4)N is applied to the system. determine amp, frequency and ste...

Health
I still dont know what it is. One the sites. It just says Anabolic Steroids but isnt there a catagory its under?

Health
What is the Drug Classification of Anabolic Steroids?

MATH
Additional help throughout the 36 weeks.Thanks!

MATH
A Science instrutor assigns his student one second of home work..the first week of school,two seconds. the second week four seconds, the third.if the student asked whether he would agree to this weekly homework doubling for the duration of the 36-week school year.how much home...

MATH
A Science instrutor assigns his student one second of home work..the first week of school,two seconds. the second week four seconds, the third.if the student asked whether he would agree to this weekly homework doubling for the duration of the 36-week school year.how much home...

math
Gene has less 12 nickels,dimes,&quarters in his pocket.The probabilty of pulling out a nickel or quarter is 3/4.pulling out a dime is 1/4.How many coins does gene have in his pocket?.how many of each coin does he have?Please explain how you got the answerit will help me alot T...

Math
you deposit $1000 at 3% per year.what is the balance at the end of one year,and what is the annual yield,if the interest.Please help solve the problem. Simple interest? Compounded annually? Compounded quarterly Compounded daily

Math
Please help solve the below question.I made a mistake on my first post.Show work please! On Dec 28,2007,you could buy a 10-year U.S.Treasury note(a kind of bond)for $10,000 that pays 4.21% simple interet every year through Dec 28,2017.How much total interest would it earn by t...

Math
Thank you very much for your help!

Math
This one is qt different..i need more help..Thanks!

Math
you deposit $1000 at 3% per year.what is the balance at the end of one year,and what is the annual yield,if the interest.Please help solve the problem. Simple interest? Compounded annually? Compounded quarterly Compounded daily

chemistry
How much Fe3O4 is produced when 50g of Fe is reacted with exess water vapor

An Overview of Teaching Techniques
I'm having trouble with this one. What type of teaching uses formal lectures? Student-centered Teacher-redirecting Teacher-centered Outdated styles. I'm thinking Teacher-centered I'm I right.

maths
Are you sure you typed this correctly? It doesn't make sense for them to give you the diameter and ask about the level falling. Should 140 cm be the height?

algebra
Height is related to the two bases and area A=.5h(b1 + b2) so A /(b1 + b2) = .5h so 2A/(b1 + b2) = h

math
Length = 2 widths + 6 24 = 2w + 6 18 = 2w 9 = w

math
15/x = 3/2 therefore 2 times 15 = 3 times x 30 = 3x 10 = x 24/x = 3/2 therefore 2 times 24 = 3 times x 48 = 3x 16 = x 27/x = 3/2 same as above x = 18 the other sides are 10, 16, and 18

Chemistry
Thank you so much! I am still very shaky on this, but I understand a lot better!

Chemistry
If a researcher needs 0.50 L of 3.0 M nitrite buffer at pH 3.00, then she knows that the concentration of nitrous acid (conjugate acid) plus the concentration of nitrite anion (conjugate base) must equal 3.0 M. She must then calculate the amount of each that is necessary to gi...

math
x is what he earned on Saturday 2x is what he earned on Sunday x/2 is what he earned on Friday x + 2x + x/2 = 70 3.5 x = 70 x=70/3.5 x = 20 $20 on Saturday $40 on Sunday $10 on Friday

Calculus
π∫(e^x)^2 dx evaluated from -1 to 1 this is the disk method and u substitution(u = 2x) =.5π∫e^u du =.5πe^2x evaluated at 1 and -1 =.5(e^2-e^-2)π =3.626π cubic units about 11.39 cubic units

Chemistry
Given that the Ka of benzoic acid is 6.50 x 10-5, how would one prepare 0.500 L of a benzoic acid/sodium benzoate buffer of a desired pH of 4.00? The starting concentration of the benzoic acid is 3.00 M and the molecular weight of sodium benzoate is 144.10 g/mol

physics
Two 5.0 g spheres are suspended from a long thread and seperated by a distance of 140mm. The spheres repel after being charged to +86nC. Find the angle

physics - URGENT
Two blocks are connected by a heavy uniform rope with a mass of 4.00 . The topblock is 6.00kg, the bottom block is 5.00kg with an applied upwardforce of 200 N. What is the tension at the midpoint of the rope?

Chemistry
Given that the Ka of benzoic acid is 6.50 x 10-5, how would one prepare 0.500 L of a benzoic acid/sodium benzoate buffer of a desired pH of 4.00? The starting concentration of the benzoic acid is 3.00 M and the molecular weight of sodium benzoate is 144.10 g/mol

math
The top speed of a cheetah is 71 miles per hour. Which of the following answers seems most reasonable for the distance a cheetah would cover in 25 minutes at this speed?

English
I need you to check these sentences for me on Prospero and Caliban. I'm not sure about the tense choice (can you say that)? 1) Caliban hopes that they both Prospero and Miranda get drenched with a dew as evil as the kind his mother used to collect with a raven’s feath...

English
I just hav a sentence. Thank you He had been married for two years when his wife decided to apply for a divorce (filed for divorce)/decided to break up their relationship. How can you express this?

English
Can you please check these sentences, please? Thank you very much! 1) She told me that it was the second time since she hadn't been to the cinema. 2) She asked me how long I had been waiting for her. I think you should try to convince his parents that Bill is a trustworthy...

English
I need you to check these sentences for m, please? 1) What's the weather going to be like in Rome tomorrow? 2) It's going to be windy, sunny, foggy,overcast, frosty, rainy,cloudy, misty. stormy. 3) There is going to be thunder and lightning (or they are going to be thu...

5th grade Math
First, you want to make both nubers a fraction, so rewrite this as : 5/1 * 3/4 Then, multiply straight across on the top, which is 5 * 3, or 15 Then, multiply straight across on the bottom, which is 1 * 4, or 4. Your answer is 15/4, but you need to make this a simplified mixed...

English
I forgot to include the following sentences. Thank you 1) Alonso is desperate because he thinks his son had drowned (or is drowned?). 2) Ariel informs Prospero aboutthe plan to kill him. 3) Dr Jekyll believed that man is (or was) a mixture of good and evil. He created a drug t...

English
Thank you very much. I need to wrie instructions of an MP3 player, a video recorder and a CD-player. Could you help me? I included a few more sentences. 1) I must be silent during teachers' explanations. I hang the clothes in the sun so that they get dried sooner (?? or mo...

English
Can you please check these sentences for me, please? It's urgent. 1) What do you think about going to the cinema? How about meeting at school? 2) How do I arrive at the school? I put the clothes back in the wardrobe. I put (is "take") the rubbish out once a day. ...

Advanced accounting
Hanna Company borrows $80,000 on July 1 from the bank by signing a $80,000, 10%, one-year note payable. Correct. Prepare the journal entry to record the proceeds of the note. Date Account/Description Debit Credit July 1 Incorrect. Prepare the journal entry to record accrued in...

English
I really need you to check these sentences on Owen's poem please. 1)In the second stanza, most of the soldiers succeed in putting on their clumsy gas masks. Someone, however, is still crying out for help, unable to move quickly and easily enough to put on his mask, as if h...

English
I forgot to add the following sentences. I really hope you can have a look at them. She assured/informed me that the money had been paid. 1) She promised me that the money would be paid. She confirmed/explained/thought/reported/added that the money had been paid. 2) She compla...

English
Can you please check the following sentences, please. It's really urgent. 1) Following what Joyce had already done in England and Proust in France, and what, in some way, Sterne had attempted as early as two centuries before, Virginia Woolf therefore abandoned the traditio...

English
Can you please tell me why "The hotel lies at a short distance from the beach" is wrong? Here are some more words I'd like you to check with reference to fashion. 1) wedge-heeled shoes, Parà-rubber shoes, trousers with patches on both sides, jeans with ora...

English
I forgot to ask you to check these sentences . Thank you for your help. 1)I forgot to add the following sentences. 2)I like sunbathing on the beach. I didn't go on the rides because I'm afraid of heights. 3)I'm looking for a hotel with air-conditioning, heated swim...

English
1) Last June she drove with her older brother from their house in Oregon to her brother's new apartment in North Carolina. 2) She realized only afterwards that she should have listened to her mum's advice. 3) The trip really changed my life since it showed me that the...

English
I still have a few doubts on school rules. I hope you can have a look at them. It's urgent. 1)You mustn't dirnk or eat during lessons/school hours. 2) You mustn't ask questions when your teacher explains/is explaining/during explanations. 3) You must take notes if ...

chemistry honors
Assuming standard pressure, at what temperature is there an equilibrium between water vapor and liquid water?

English
Thank you very much. I hope you can have a look at these few sentences too. 1)*Interior monologue is often confused with the stream of consciousness, although they are quite different. 2)Actually, the former is the verbal expression of a psychic phenomenon, while the latter is...

English
I still have a few doubts on the use of the present after "as if" and on other statements. Thank you for your cooperation. 1) They are hobbling along on their bloody feet, as if they are (why not were?) hurt or blind. They are so tired, they walk ask if they are (why...

English
I still have a few parts I'm unsure of. I really hope you can help me. It's urgent, especially the last paragraph n.7 1)In the second stanza, the soldiers succeed in putting on their clumsy gas masks. Someone, however, is still crying out for help, unable to move quick...

English
I really need to have a look at the first stanza of Owen's poem as I'm unsure of tense choice. Thank you. 1) In the first stanza the soldiers are retreating towards their trenches. Instead of being youthful, strong fighters, they are presented as prematurely old and w...

Algebra
Sorry Iposted that previous question wrong. Here is the right question. What is the remainder when the sum of the first 102 counting numbers is divided by 5250.

algebra
What is th remainder when the sum of the first 102 counting numbers is divided by 5220?

English
I left out two sentences. Thank you. 1) I take the clothes out (and not: I take out the clothes?) 2) You mustn't speak during the lessons/during lessons/during your school hours/during your school classes. 3) You must be in class when the teacher arrives. I have to separa...

English
I have two more questions on the same theme. Thank you. 1)Pay attention to (not at) your teachers' explanations. 2)You must put up your hand, if you want to ask a question to your teacher/your teacher a question . Are they both possible? 3) You mustn's shout at your cl...

English
I left out the following sentences. Thank you for your help. It's urgent 1) I must always bring all my books and exercise books to school (class?) I must do (my) homework every day. 2) How can I get to the school (or to school?) from here? Do you know how I can get to the ...

English
I forgot to add the following sentences. Thank you very much. 1) In the evening I always have to prepare (?) my schoolbag.I must put up my hand if I want to speak (??) I mustn't eat or drink during school hours (also: lessons?) 2) I mustn't interrupt my (the?) teachers...

English
Can you please check these sentences? It's really urgent. 1) At school I mustn't cheat during a test (also tests?). 2)When I do the washing-up, I have to put the dishes into the dishwasher, then put the washing-up gel (powder) into the dishwasher, start it and wait for...

English
Thank you very much. Can you help me rephrase the last few lines, please? "Obscene as cancer, bitter as the cud Of vile, incurable sores on innocent tongues,-- My friend, you would not tell with such high zest To children ardent for some desperate glory, The old Lie: Dulc...

English
I forgot to include the following sentences on fashion. I hope you can look at them, too. Thank you. 1) How do you call a half-button up T-shirt with a collar? In Italian it is called a polo T-shirt. 2) He is wearing a blue polo T-shirt with the Ralph Lauren logo on the top l...

English
I really need your help to rephrase the following lines taken from Owen's "Dulce et decorum est". I included a lot of question marks for the parts to rephrase. 1)In the second stanza the soldiers succeed in putting on thier clumsy helmets.Someone, however, is sti...

Chemistry: Answer check please!
zeros at the end of measurements may not be significants

English
Can you check these please? 1)It would be nice if our Italian students could start an e-mail exchange with their new American friends. 2)The committe has organized a buffet farewell party to wish the American students a good journey home. 3) What time are you flying back? Have...

English
Can you please check these sentences. Thank you very much for all! 1) What is your school day like? Can you drive a car? How old must you be to drive a car in America with you parents'supervision? 2) Are there vending machines at your school where you can get your drinks ...

Art 17th Century Europe
Contrast the "Elevation of the Cross" by Rubens with Rembrandt's Return of the Prodigal Son. How does each work demonstrate the Baroque style? How does each work mirror the social and political climate of the time? **Hope someone can Help,Please! =)

English
I forgot the last two sentences. They are urgent!! 1)Can you write your name and e-mail on this sheet of paper so that we can get in touch with you (each other?) when you are back in America? 2) I would be pleased if our students could start sending e-mails to one another so a...

English
I forgot to include the following sentences. They are really urgent! 1) Each of you should choose a group, get a chair and start chatting with that group 2) You divide (yourselves) into groups of four and interview an American student for twenty minutes. When time is over, we&...

English
I have to deliver a five-minute speech at a farewell party organized for the the American students who partecipate in the school-exchange programme. Can you please help me organize my ideas or suggest a site where I could look for information? I really hope you can help me ch...

English
Can someone check my sentences, please? It's really urgent. I don't know how to rephrase "bug", "she did te ultimate". Thank you. 1) My mum started bugging with clothes she chose. I didn't say anything at first, I just turned up my nose. 2)I nee...

math
what percent of 1 is 4.7?

English
I forgot to include the following list of words. Can you just tell me if they are used and if I should include other (more fashionable) clothes? 1) FOOTWEAR: Walking boots, boots, sandals, shoes, slippers, court shoes (AmE pumps), flip flops, slippers, clogs, sandals. 2) shoes...

English
Can you please check these few sentences, please? Thank you. I'm not sure about the paraphrasis of a Will Smith's song. 1) The members of Sinn Fein protested (I need a synonym) about the discrimination against Catholics. 2) Heavy bomber raids continued on London. (Does...

English
Can you please check these sentences for me? It's really urgent. 1) At eighteen you can get married without your parents' permission. At eighten years of age/When you are eighteen ... (are they both correct?) 2) You can't get married without your parents' permi...

English
I added a few more sentences. I hope you can help me express them correctly. Thank you. 1) Do you like soccer (Italian football)? Is soccer popular in America? 2) Can you watch the Italian football season in America? (Do you follow the Italian football season/championship/lea...

English
I included other questions. Can you please help me improve them? Thanks a lot. 1) Do you like staying with your host family? Do you think you will miss them once back in America? 2) What will you miss most about your staying in Italy? (Your host family, new friends, the food o...

English
I need to interview a group of American 16-year-old-students who are visiting our school. I hope you can help me wiht the questionnaire. Thank you. 1) How often do you have English a week/during the week/every week/per week? 3) How much free time do you have during the week? 4...

algebra
find the positive value of x, to the nearest hundredth, that satisfies the equation 1 over x= x+2 over 2x+3

English
I left out a very last sentence. Thank you very much! 1)Do you always make breakfast by yourself? To tell the truth, I sometimes have it made by my mum. Is it also possible: Do you always make yourself breakfast?

English
I forgot to add these very last sentences. Thank you very much for all! 1) I last felt sorry when my best friend lost his father in a car accident. 2) I last felt sorry for a friend of mine, whose father was run over by a lorry while crossing the road. 2) That happened two yea...

English
I forgot two include these two very last sentences. Thank you. 1) You can write either on the photocopy or on the fool-scap paper (I don't know if it is correct) 2)Present the character of the prioress, pointing out her appearance, her attitude towards her fellow creatures...

English
These are the very last sentences of the day. Thank you very much for your help. 1) I know I'll miss working with you. She is going to change job. 2) She suggested going to the cinema rather than to the theatre. Do you remember seeing that man before? 3) His family expect...

English
I included the five statements I was not sure of. Thank you for helping me. 1) The turning point of World War II came in 1941: Hitler, ignoring his pact, attacked Russia in June, and the Japanese, in December, attacked the American naval base of Pearl Harbour, forcing the Unit...

English
I forgot to include the following sentences on the same subject. Thank you for checking them. 1) The turning point of World War II came in 1941: Hitler, ignoring his pact, attacked Russia in June, and the Japanese, in December, attacked the American naval base of Pearl Harbour...

English
Can you please check if everything is all right in these sentences I wrote on the second world war. Thank you. 1) On the 1st of September 1939 the Germans invaded Poland; on the 3rd of September the Western Powers (France and England) declared war on Germany. 2) In April 1940 ...

math
symplify the expression if possible: e^3

English
I included a few more sentences I'm unsure of. The last refer to the UK in the 20s. 1) I subscribe ( subscribed?) to Sky to watch English channels. I'm disgusted with this soup. 2) I was disgusted by the news (not with the news?) of the Prime Minister having a relation...

English
Can you please check these sentences for me? Thank you very much in advance. 1)Each group has to interview an American host student for ten minutes and then report about him/her to the whole class (also: present him o her to the whole class). 2) First,build groups of five, six...

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