Wednesday
July 29, 2015

# Posts by Mike

Total # Posts: 3,310

calculus
A fixed amount 15000 is invested in a tax-sheltered account at an annual rate of percent, compounded continuously. Let represent the amount in the account at time . Part A. Let percent. Give the differential equation that describes the rate of change in the amount with respect...
September 11, 2012

physics
A gray kangaroo can bound across a flat stretch of ground with each jump carrying it 9.3 m from the takeoff point. If the kangaroo leaves the ground at a 17.6 degree angle, what is its takeoff speed?
September 8, 2012

Chemistry
How do I find the total mass of sample in a solution? I have: Volume of the solvent Mass of the solvent Mass of sample added I do not know what the sample is. Thanks!
September 8, 2012

Math
Write the multiplication/division fact family for 2,7,14
September 6, 2012

Chemistry
Her calculations are in excess of 100%, and add to 110%. She therefore measured the three ingredients of the mixture incorrectly.
September 4, 2012

calculus
A 0.2 ml dose of a drug is injected into a patient steadily for 0.75 seconds. At the end of this time, the quantity,Q, of the drug in the body starts to decay exponentially at a continuous rate of 0.2 percent per second. Using formulas, express Q as a continuous function of ...
September 4, 2012

accounting
If sold inventory had cost 1500 for 2750 on a account under terms 2y10, ny45
September 3, 2012

Health economics
Suppose you are to specify a short-run total variable cost function for a nursing home. Explain the variables you would include in the function. What is the expected relation between a change in each of these variables and short-run total variable costs?
September 3, 2012

Physics
A sailboat starts from rest and accelerates at a rate of 0.12 m/s2 over a distance of 280 m. (a) Find the magnitude of the boat's final velocity. (b) Find the time it takes the boat to travel this distance.
September 2, 2012

AP Chemistry
How many grams of CO can react with .150 kg of Fe2O3?
September 2, 2012

Math
arrange {-2.07, -2.007, -27/10, -2.77} in order from greatest to least
September 1, 2012

Math
Put the function P= 35(1.3)^t in the form P0ekt When written in this form, you have: K= P0=
August 28, 2012

math
sam bought 1 of 250 tickets selling for \$2 in a game with a grand prize of 400 dollars. Was \$2 a fair price to pay for a ticket to play this game?
August 19, 2012

American history
How did john winthrop play an important role during colonial america?
August 19, 2012

physics
which is true consdering torque and angular momentum: 1. spinnng figure skaters tuck their arms in to stop. 2. a high diver can flip forward faster than he can spn around the axis runnng from his head to his feet? 3. it is easier to turn the rudder on an old sailing ship with ...
August 17, 2012

math
Dawn Lingua bought three yards of cloth to make some curtains. The cloth was on sale for \$2.25 per yard. How much did Dawn pay for the cloth if the sales tax was 5%?
August 14, 2012

Life Science
Fungi are classified into how many groups?
August 12, 2012

health
me 4th
August 11, 2012

algebra
m<-2 A)-1 9/10 B)0 C)-2 1/3
August 8, 2012

Writing
I need to write the top ten reasons I am happy to be back in school. (6th grade). What would you write?
August 7, 2012

math
does it take more pressure to push water up a vertical pipe than the same pipe on a 45 degree incline
August 2, 2012

physics constant angular acceleration
A wheel with radius 25.2 cm rotates with constant angular acceleration 3.75 rad/s2 (radians per second per second). If at t = 0 s, the angular speed of the wheel is 4.3 rad/s, how long does it take the wheel to complete 4 revolutions?
July 31, 2012

physics
Two Carts have a perfectly inelastic collision. Cart A has mass 47.2 kg and velocity 6.33 m/s directed north immediately before the collision. Cart B has mass 41.1 kg and velocity 4.4 m/s directed west immediately before the collision. What is the speed of the two carts, stuck...
July 30, 2012

physics
A 11.3 kg cart slides down a rough, inclined ramp, angled 24o with respect to the horizontal. At time t = 0 s, the velocity of the cart is 2.75 m/s directed down the ramp. At time t = 0.36 s, the velocity of the cart is 4.16 m/s directed down the ramp. What is the magnitude of...
July 28, 2012

com 200
Kyle’s operation of a social schema Kyle’s operation of a person schema Kyle’s operation of a role schema Kyle’s operation of a prototype
July 25, 2012

physics
A 1.79 kg block slides across a horizontal surface directly toward a massless spring with spring constant 5,300 N/m. The surface is frictionless except for a rough patch of length 0.45 m that has coefficient of kinetic friction 0.28. The initial velocity of the block is 3.24 m...
July 24, 2012

math
Which equation does not represent y as a function of x? A. -7y = 2 B. 6x = -8y C. 5y^2 + 2x = -4 D. 4x^2 + 9y = -8
July 20, 2012

statistics
3. Measurements on the percentage of enrichment of 12 fuel rods used in a nuclear reactor were reported as follows; 3.11 2.88 3.08 3.01 2.84 2.86 3.04 3.09 3.08 2.89 3.12 2.98 a. Test the Hypothesis H0: µ = 2.95 versus H1: µ 0 ≠ 2.95, and draw appropriate ...
July 19, 2012

Math
the proof is simply to complete the square for a generalised quadratic equation. Like this: ax2(xsquared) + bx + c = 0 Take 'a' outside: a[x2 + bx/a + c/a] = 0 Divide through by 'a': x2 + bx/a + c/a = 0 Complete the square: (x + b/2a)2 - b2/4a2 + c/a = 0 ...
July 13, 2012

math
The two longest rivers in the world are the Nile and the Amazon. Together, they are 8145 miles, with the Amazon being 145 miles shorter than the Nile. Find the length of each river.
July 4, 2012

Art
I left out these last things. Thank you, Writeacher! 1) Can you tell me which is the correct pronunciation of Daisy Buchanan (in the Great Gatsby)? What's the name of the garage owner? (real question) 2) What about the name of the garage owner's wife? Is Gatsby killed ...
July 3, 2012

Art
Could you please tell me which if the word choice is correct? Thank you, Writeacher!!! 1) He exclaimed that he had spent all his pocket money on that book. 2) "I'm going on a school trip tomorrow" (he/inform/his mum). He informed his mum that he was going on a ...
July 3, 2012

Foreign languages
Can you check these two questions, please? 1)Who coined the term Lost Generation? Who were its most representative writers? 2) Can you briefly summarise the plot of Fitzgerald’s Great Gatsby.
July 3, 2012

algbra
If fuses cost \$2.35 each, and each motor requires 3 fuses, how many motors can be supplied with \$493.50 worth of fuses?
June 28, 2012

Foreign languages
Can you also check this other exercise, please? Thank you very much. 1) Complete with the correct form of the verbs in the past simple, past perfect, and past continuous. 1. My friend ............. (be) very upset because someone ....... (steal) her bag before I saw her. 2.I...
June 26, 2012

Art
I left out the following sentences. Thank you, Writeacher 1) Transform the following active sentences into the passive voice using the personal construction 1) He sent me an invitation. I was sent an invitation 2) They will offer him a better position in the company. He will ...
June 26, 2012

Art
Can you please check if the following sentences are correct? Thank you. 1) “I met Mary last Monday.” (she/say) She said that she had met Mary the previous Monday. 2) “I’m sorry, I broke the vase.” He apologized for breaking the vase. 3) “ You ...
June 26, 2012

Art
Can you please check these two sentences? Thank you. 1) Why did the doctor prescribe Coleridge opium? What did Coleridge suffer from?
June 26, 2012

Art
I left out the following questions. Could you please check them? 1)In the English section of your dissertation you focused on Emily Dickinson whose unsatisfied hunger (starvation) seems to be above all an emotional one. 2)How did her own life influence her poetic universe? Is ...
June 25, 2012

Foreign languages
Writeacher, could you please check these sentences? Thank you. 1) Who was Henrietta Lacks? In what way did she contribute to the study of cancer? 2) Is it possible to stop the aging process? How did Lord Henry define beauty and old age respectively? 3) Who was the first to ...
June 25, 2012

Foreign languages
How can I rephrase the modal should when expressing probability? Thank you very much. He should visit us tonight = he is likely to visit us tonight OR HE will probably visit us tonight. The meaning of He is expected to visit us tonight is different.
June 24, 2012

Foreign languages
I left out the following exercise. Can you tell me how I can improve it? Thank you, Writeacher Put the following into indirect speech using the reporting verb in brackets. 1) “I met her last Monday.” (Mary/say) 2) “I’m sorry, I broke the vase.” (he/...
June 24, 2012

Art
Can you check these sentences, please? 1) You are forbidden to enter this area. You mustn't enter this area. 2) It wasn't necessary for John to go to work because it was Sunday. He didn't have to go to work.
June 23, 2012

Art
Can you suggest a site where you can practice modals(used to express probability and possibility)? Thank you, Writeacher. I also need to find a reading comprehension at intermediate level with two/three different post-reading activities. Thank you very much.
June 23, 2012

Foreign languages
I left out these sentences. Can you please check them? 1) You bought a new pencil case, but it wasn’t necessary. 2) It wasn’t necessary for her to follow her father’s advice. 3) I’m sure he didn’t steal the money. Is it possible for you to close the ...
June 21, 2012

Foreign languages
Writeacher, can you please check these sentences? Thank you. 1 Talk about the place where you live using the following grid: . – What is your town like – How long have you lived there – if you like it or not and why – If you don’t like it where you ...
June 21, 2012

Foreign languages
Writeacher, I started to questions with "Briefly outline", I need to find a synonym for "outline". 1)Briefly outline the main values on which Victorian society was based....
June 21, 2012

Foreign languages
I urgently need to check how to rephrase modals expressing possibility/probability etc. 1. I’m sure/certain he didn’t rob the bank. He can't have robbed the bank (only choice) 2. I’m certain/sure he stole the ring from Peter William’s bedroom. He must ...
June 21, 2012

Foreign languages
I urgently need you to check these few sentences. Thank you. 1) The flowers are not described as statically as in a painting but (as) alive with motion. 2) Her mind moves back and forth in time, whereas she stays fixed in the sitting of her second holiday home. 3)The task of ...
June 21, 2012

Foreign languages
Can't you have the structure "have someone do something" in American English? Thank you very much, Writeacher. I had her get a piece of chalk.Active She was asked (requested??) to get a piece of chalk. Passive (??)
June 19, 2012

Foreign languages
I left out the following sentences. Thank you. I also need to find an example with "demand" followed by the infinitive. 1) They demand the bridge to be closed (?). Keep the book open and check the sentences yourself. Active/passive 2) He let me go to the cinema I was...
June 19, 2012

Foreign languages
Can you check these last sentences? Thank you, Writeacher! 1) He is learning to drive a moped. 2) I'm teaching him to speak French. 3) I wonder whether to reply to his email or not. 4) We were obliged to postpone the meeting. He was the first to hand in his test. He is the...
June 19, 2012

Foreign languages
I urgently need you to check these sentences, too. Thank you. 1) Pay in cash (or pay cash?) 2) Have you ever tried shopping on line OR online shopping? 3) They are planning to open a shopping centre on the edge/on the outskirts of town. 3) Imagine to dance with him. I can'...
June 19, 2012

Foreign languages
Can you please check these sentences, Writeacher? It's urgent. 1) I'd like to get/have my money sorted out ( I need a synonym) before I leave for university. 2) I want the bank to give (issue is possible?) me a credit card. 3) I've tried many times to stop smoking ...
June 19, 2012

Statistics
An organization is studying whether women have caught up to men in starting pay after attending college. They randomly sampled 28 women, who earned an average of \$38,293.78 out of college with a standard deviation of \$5,170.22. Twenty-four men were also randomly sampled, and ...
June 18, 2012

Statistics
A company has two factories in which they manufacture engines. Once a month they randomly select 10 engines from each factory and test if there is a difference in performance in engines made in the two factories. This month the average output of the motors from Factory 1 is ...
June 18, 2012

Statistics
A 95% confidence interval for a population mean, ?, is given as (18.985, 21.015). This confidence interval is based on a simple random sample of 36 observations. Calculate the sample mean, x ?, and the sample standard deviation, s. Assume that all assumptions and conditions ...
June 18, 2012

Art
I left out the following sentences. Thank you, Writeacher. 1) I miss seeing my favourite TV shows. He neglected painting the back side of the house. 2) He neglected to paint the back side of the house (do they have the same meaning?)
June 18, 2012

Foreign languages
Thank you very much for your help. I just wanted you to check these sentences. 1) He begged to leave. He appears to be a nice man. He asked to leave the room. 2) He avoided failing the course. They consider selling their old furniture. 3) He chose not to attend the course. ...
June 18, 2012

Foreign languages
Thank you very much, Writeacher. I need to rephrase sentence 1. I also wonder if you could help me find online tests on verbs followed by the gerund/infinitive and on reporting verbs (possibly different from say, tell, ask). Thank you very much! 1) Briefly outline the main ...
June 18, 2012

Art
Writeacher, could you please check these questions? Thank you. I need to express question number 3 in a different way. 1)Briefly analyze the works of at least two authors (also: of those authors?) (we dealt with in class) who showed a deep social commitment as well as (an) ...
June 18, 2012

Geometry
I have a parallelogram with sides AB and CD each 36' long and sides AC and BD each 22' long. Corner A to corner D is 43'2" long and corner B to corner C is 41'1" long. How far will corner C have to travel for this parallelogram to become a rectangle?
June 16, 2012

Physics
A 1400-kg car rounds a curve of 57-m banked at an angle of 14 degrees. If the car is traveling at 98-km/h (27-m/s), will a friction force be required? If so in what direction? How much friction force will be required?
June 14, 2012

Physics
What is the maximum speed with which a 1150-kg car can round a turn of radius 71-m on a flat road if the coefficient of static friction between tires and road is 0.80?
June 14, 2012

Physics
A 0.40-kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 2.0-m on a frictionless horizontal surface. If the cord will break when the tension in it exceeds 75-N, what is the maximum speed the ball can have?
June 14, 2012

Physics
A 0.140 kg baseball traveling 39.0 m/s strikes the catchers mitt, which, in bringing the ball to rest, recoils backward 13 cm. What is the average force applied by the ball on the glove?
June 13, 2012

Physics
What is the magnitude of the average force required to stop an 1500 kg car in 8.0 s if the care is traveling at 95 km/h? Sum of F = ma?
June 13, 2012

Physics
A 13.0 kg box is released on a 33 degree incline and accelerates down the incline at 0.20 m/s^2. 1. Find the friction force impeding its notion? 2. What is the coefficient of kinetic friction? *Are we dealing with Kinetic or Static Friction...this will effect coefficient ...
June 13, 2012

Physics
A 13.0 kg box is released on a 33 degree incline and accelerates down the incline at o.20 m/s^2. A. Find the friction force impeding it's motion B. What is the coefficient of kinetic friction
June 12, 2012

history- Cuban Revolution- please help
how did the Cuban revolution affect the Caribbean?
June 12, 2012

ALGEBRA
Consider the following apportionment problem for College Town. Suppose each council member is to represent approximately 2,500 citizens. Use the apportionment plan requested in the problem, assuming there must be 10 representatives. North: 5,500 2.2 South: 9,000 3.6 East: 6,...
June 10, 2012

ALGEBRA
Consider the following apportionment problem for College Town. Suppose each council member is to represent approximately 2,500 citizens. Use the apportionment plan requested in the problem, assuming there must be 10 representatives. North: 5,500 South: 9,000 East: 6,400 West: ...
June 10, 2012

chemistry
if a solution contains 255mL of ethanol and 375 mL ofwater, what is the percent of ethanol in the soution
June 10, 2012

ALGEBRA
Round 416,000 to two decimal places for me please
June 10, 2012

ALGEBRA
(a) If there are 70 voters and 5 candidates, how many total points would there be in a Borda count? (b) If there are 60 voters and 4 candidates, how many total points would there be in a Borda count? (c) If there are 900 voters and 3 candidates, how many total points would ...
June 10, 2012

ALGEBRA
Suppose that people's heights (in centimeters) are normally distributed, with a mean of 165 and a standard deviation of 6. We find the heights of 60 people. (a) How many would you expect to be between 159 and 171 cm tall? (b) How many would you expect to be taller than 160...
June 10, 2012

Art
Thank you, Writeacher. Here is the last part of the same summary. Could you please check it? 1) The names of the ingredients are reported using an international code, INCI which is the same for all EU countries though it is also used in other countries, for example USA, Russia...
June 9, 2012

Art
I changed a few things from my previous mail. Could you check grammar and punctuation, Writeacher? Thank you! 1) I suppose you received the remaining balance because my bank has already taken the money from my bank account. 2) However, I would be grateful to you if you let me ...
June 9, 2012

Art
Ms. Sue, Writeacher I urgently need you to check this paragraph and suggest where I should look for more specific details on this topic. 1) The information appearing on cosmetics must be present directly on the container of the cosmetic and, if present, on the outer box. 2) ...
June 9, 2012

Art
Ms. Sue, I urgently need you to check this email. Thank you 1) I suppose you received the remaining balance because my bank has already taken the money from my bank account. 2) However, I would be grateful to if you let me know about that all the same. 3) In my previous post I...
June 8, 2012

Science
I left out the following statements. Thank you very much, Ms. Sue 1) The researchers in a group led by Paro, crossed the files of six generations. Thanks to this experiment, they were able to prove the temperature treatment changes the eye of colour of this specific strain of ...
June 7, 2012

Art
Could you please check scientific English in this short dissertation? Thank you, Ms. Sue. 1) Conrad Waddington introduced the term epigenetics in the early 1940s. He defined epigenetics as ‘‘the branch of biology which studies the causal interactions between genes ...
June 7, 2012

Art
Ms Sue, could you please help me express the following ideas? Thank you. 1) Have you thought of a possible common theme? Of course we'll have to wait till September because the school year is about to end. Actually, it ends next Wednesday. 2) If my mother is well, I may ...
June 7, 2012

Art
Ms. Sue, I need to include these sentences I posted a few days ago to Writeacher. Thank you very much! 1) I'm forwarding you the link to the European Etwinning certificate of quality. 2) Online projects carried out among two or more European schools can be eligible to ...
June 7, 2012

Art
Ms. Sue, could you please check this part,too? Thank you 1) He explained why he wrote Gomorrah; he did it for the new generations, seeing kids who dream to be a killer, who see in crime the only way of achievement. Boys and girls without hope. He saw his land without a future...
June 7, 2012

Art
Could you please check this paragraph, Ms.Sue? This is the last of the day. 1)He is a 28-year-old young writer and journalist born in Naples. He grew up in its hinterland ruled by the Camorra. Since he was a child, he has been aware of the mob's existence, its huge ...
June 6, 2012

Art
Could you please check how I can improve the following sentences? Thank you, Ms Sue. 1) Through his novel Orwell describes the totalitarian governments that had governed Europe in the period between the two wars. As a matter of fact, much of Oceanic society is based upon the U...
June 6, 2012

Art
Can you please check if my rephrase is OK? I need to rephrase my previous post. I can't leave the sentences as they were. Thank you, Ms Sue. How does George Orwell describe Winston Smith in the opening of Nineteen Eighty-Four? Make referece to the place where he lives, the...
June 6, 2012

Art
Ms Sue, can you please check my post until Writeacher comes back? I would be extremely grateful to you. I need to rephrase this sentence. 1)Give a detailed description of Winston Smith as he appears in the opening to George Orwell's 1984. Refer to the place where he lives...
June 6, 2012

Art
Writeacher, will you be on holiday over the weekend? I really hope you'll write a reply.
June 6, 2012

Art
Could you please check these few sentences, Writeacher. Thank you. 1) I'm forwarding you the link to the European Etwinning certificate of quality. 2) Online projects carried out between two or more European schools can be eligible to receive both a national and a European...
June 5, 2012

Art
Could you please check these few sentences. Thank you. 1) I'm forwarding you the link to the European Etwinning certificate of quality. Online projects carried out between two or more European schools can be eligible to receive both a national (in 2) Our participating ...
June 5, 2012

Art
Thank you very much. Could you please check these few lines, Writeacher? 1) My pupils haven't received any email from their Irish partners yet. What shall they do? They would have liked to get in touch with their partners before the school exchange in October. 2) By the ...
June 5, 2012

Physics
Imagine you are in an open field where two loudspeakers are set up and connected to the same amplifier so that they emit sound waves in phase at 688 Hz. Take the speed of sound in air to be 344 m/s. If you are 3.00 m from speaker A directly to your right and 3.50 m from ...
June 4, 2012

ALGEBRA
Assume that a dart is randomly thrown at the dartboard shown here and strikes the board every time. The payoffs are listed on the board. How much should you be willing to pay for the opportunity to play this game? (Give your answer to the nearest cent.) \$48 -\$13 \$24 \$6 \$3 \$12 \$
June 3, 2012

physics
Residents of Hawaii are warned of the approach of a tsunami by sirens mounted on the tops of towers. Suppose a siren produces a sound that has an intensity level of 120 dB at a distance of 2.0 m. How far away can the siren be heard?
June 3, 2012

trig
solve equation for exact solution if possible leave answer in degree sinx/2=square root of 2- sinx/2
May 30, 2012

math
A Basic Car Rental charges a daily rate of \$29 plus \$.20 per mile. Suppose that you rent a car for a day and your bill (before taxes) is \$79. How many miles did you drive the car?
May 27, 2012

Physics(Please respond)
iam trying to find out when a rock drops onto a well 17 seconds later it hits the water how far down is the water level from the top of the well
May 27, 2012

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