Thursday
September 18, 2014

Posts by Tommy


Total # Posts: 294

math help
Which is equivalent to 14x-3y+2z=100 -17x+8y+10z=11 -3+13y+29z=81
May 19, 2014

Chemistry
The observed general trend in ionization energies shows two slight discontinuities in each period. Examine the electron configuration at these points and explain why such a discontinuity may occur.
April 9, 2014

Social Studies
I know his ideals,but I don't know how should I write about the reality? For example, october crisis, can you give me an idea how does october crisis affect his ideals?
March 11, 2014

Social Studies
I have to explain how does Pierre Elliot Trudeau's ideals meats the reality in 200 words? So can you give me some ideas about how should I write it?
March 11, 2014

Social Studies
To what extent do you think that Pierre Elliot Trudeau was the right man for his time? 200 words
March 11, 2014

Social Studies
How does Pierre Elliot Trudeau's idealism meets the reality? 150 words
March 11, 2014

English
Here are some quotes in Pride and Prejudice, can you help me to analyze it, remember to write it in your own words, I'm not good at analyzing, so... 1. It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife. 2. ...
February 27, 2014

English
Can you write this paragraph in your own words, so I can understand, but don't make the paragraph too short.
February 17, 2014

English
But his reference to Shakespeare is especially deliberate, being in the form of a solemn and last appeal to his friends among the scholarly dramatists to relinquish their connection with the presumptuous and ungrateful stage.
February 17, 2014

Drama
Can you read this and give me some idea about how I should block the scene because I have to perform it. Hi, I'm William Shakespeare. I had disappeared from the records for seven years. Many rumors flew around, including that I liked to poach. They say I had to leave ...
February 17, 2014

history
Answers are POORHOUSES and FACTORYS.
February 17, 2014

English
Can you check if there's grammar mistakes in this monologue, if there is, can you correct it for me. Hi, I'm William Shakespeare. I had disappeared from the records for seven years. Many rumors flew around, including that I liked to poach. They say I had to leave ...
February 17, 2014

Chemistry
Equation: Fe+CuCl2>FeCl2+Cu We put two iron nails into the copper chloride solution:1. mass of empty dry beaker:103.64 2. mass of two iron nails, before reaction:1.20 3. mass of two iron nails after reaction: 1.01 4. mass of beaker and copper (dry):104.4 Through ...
February 16, 2014

Chemistry
If the tongs used in the experiement were made of pure iron, what might happen if the tongs were allowed to remain in contact with the CuCl2 solution?
February 16, 2014

Chemistry
Equation: Fe+CuCl2>FeCl2+Cu The ratio of moles of copper produced to moles of iron reacted should be 1:1,but I get 60:17 in lab,can you state at least 3 errors for me?
February 16, 2014

English
Can you read this essay first, and then tell me how I should block the scene and perform it, I have no idea how I should do this. Hi, I'm William Shakespeare. I had disappeared from the records for seven years. Many rumors flew around, including that I liked to poach. They...
February 16, 2014

English-help me please
Can you change the hard English words to easy ones and make the long sentences a little bit short for me? I have to memorize it and perform it, so I need this monologue to be easier. Monologue:Shakespeare's relationship with Robert Greene For seven years, I was disappeared...
February 16, 2014

Social Studies
laissez-faire and different political ideologies:conservative, liberal and socialist.
February 15, 2014

Social Studies
If you are a member in Liberal party, what would you say about the great depression in Canada, I mean your idea?
February 15, 2014

English
How can I direct a key scene in Macbeth?
February 9, 2014

English
Question's about shakespeare? 1. What kind of music speaks to him the most? 2. For him, what role should the government have in a person's life? 3. For him, is the glass half empty or half full and why? I cannot find the answers for these questions online.
February 4, 2014

Social Studies
significance of liberation of the netherlands
February 2, 2014

Social Studies
In what ways did the Treaty of Versailles and the Great Depression help bring Hitler to power?
February 2, 2014

Social Studies
Explain the significance of the following for Canada and the World War 2: Dieppe, Ortona, D-Day, and liberation of the Netherlands.
February 2, 2014

Social Studies
Why is the Holocaust a great reason to support the current Canadian policy of multiculturalism?
February 2, 2014

Chemistry
All these
January 25, 2014

Chemistry
Air Pollution: How do I use equations to describe the question "How is it formed?' for the air pollution?
January 25, 2014

4th grade social studies
why did the king of spain give florida land away to foreigners? I can't find any thing on the internet?
January 22, 2014

English
Write this in your own words. what is Pollution? Pollution is the introduction of contaminants into the natural environment that cause adverse change.[1] Pollution can take the form of chemical substances or energy, such as noise, heat or light. Pollutants, the components of ...
January 22, 2014

Drama
About the movie" Hotel Rwanda¡±£º 1. 1. What moment did Paul's life change? 2. Could Paul have changed his mind? 3. At what moment was Paul past the point of no return? 4. What are the positive and negative sides of attempting to recreate ...
January 15, 2014

Chemistry
How do I write a blog for my chemistry project?
January 7, 2014

Social Studies
What kind of personalities did Canada have in the 1920s? Here we should treat Canada as a patient, so I think Personalities here means its character and nature, but not a famous person.
December 31, 2013

Psychology
How do I write a conclusion and recommendation for a psychological report? This report is about analyze Canada's relationship with Great Britain, USA and itself in the 1920s.
December 31, 2013

Social Studies
The teacher said we should treat Canada as a patient here and then analyze its relationship with itself.
December 31, 2013

Social Studies
During the 1920s, what were the various personalities of Canada, which personalities were dominant, which personality were starting to assert itself, and which personalities were still being ignored or mistreated? And "Personalities¡±here means Canada's ...
December 31, 2013

Social Studies
The teacher let us analyze Canada's relationship with itself in the 1920s. We are doing this in a psychological report and we should treat Canada here as a patient. I just don't understand what does he mean by attitude and where should I start?
December 31, 2013

Social Studies
It's talking about its attitude in the 1920s.
December 31, 2013

Social Studies
How would you describe Canada's attitude to money,work,entertainment and the past and the future?
December 31, 2013

english
what sound devices does Dickinson employ in the phrase, "too cool for Corn", "But when a Boy, and Barefoot"? alliteration, slant rhyme
December 26, 2013

math
OHHHHH..... okay i understand now... Thanks!!
November 8, 2013

math
If a Realtor earns 6% commission for selling $70,000 home, what is the amount of the commission?
November 8, 2013

algebra
Please help find the root(values of x when the expression is equal to zero) 3x^2+21x=0
October 3, 2013

economics
Discuss the role of advertising in product differentiation and the intent of advertising in altering the firm’s demand curve.
September 20, 2013

Chemistry
The temperature of a 12.58g sample of calcium carbonate increases from 23.6degrees celcius to 38.2 degrees celcius. If the heat capacity is 0.82J/g-K, how many Joules of heat are absorbed
June 18, 2013

Chemistry
Calculate the Bi^3+ at the following points on the titration of 25cm3 of 0.02M Bi^3+ solution with 0.02M of EDTA at pH=2. After the addition of: a. 10cm3 b. 24cm3 c. 25cm3 d.26cm3 e. 30cm3. (Given: stability constant = 10^27.5, and alpha = 10^15.5) Please I need quick reply. ...
June 10, 2013

economics
A research firm calculated that students who attend University spend about $2,760 each in the local economy for a total of $50.45 million. In total, the impact of their spending on the local economy is £63 million. Calculate the size of the student spending multiplier. ...
May 17, 2013

economics
if Q = 60 − (1/2)P, and MC = 60, which means that MR = 60 how do you work out the price, which then allows you to work out the Q. does the graph still exhibit a slope at twice the rate of the demand curve? thanks for looking in
May 9, 2013

Chemistry
cr(s)--->Cr^3(aq)+3e- and Pb2+(aq)+2e---->Pb(s) write a balanced equation Please help thanks
May 5, 2013

statistics
An oil change shop advertised to change oil within 15 minutes. Based on the data collected on a typical day, what is the probability that oil change will take 15 minutes or less time? Based on the data, do you think the business claim is valid? Explain why or why not.
April 18, 2013

how many particles...?(Physics
A person takes a breath as deep as possible by exhaling as far as possible (leaving a volume of 1.170 L in their lungs), and then slowly inhaling to increase their lung volume by 4.580 L. His body temperature is also 37.64 ¡ãC. (i)How many particles of air do ...
April 9, 2013

Urgent Help needed in PHYSICS!
A spherical balloon is inflated to a diameter of 20.0 cm. Assume that the gas in the balloon is of atmospheric pressure (101.3 kPa) and is at a temperature of 20.0 ¡ãC. It is then taken by a diver 15.0 m under the sea. The temperature of the seawater at this depth...
April 9, 2013

Physics-
i¡® ve got the first question... so can anyone help me with the second??
April 9, 2013

math
31824
March 24, 2013

math
A professor grades students on three tests, four quizzes, and a final examination. Each test counts as two quizzes and the final examination counts as two tests. Sara has test scores of 60, 80, and 89. Sara's quiz scores are 85, 94, 83, and 84. Her final examination score ...
March 24, 2013

Algerbra
-3x+6
March 24, 2013

math
if the perimeter of a pentagon is 60 com, what must its dimensions be to maximize area? the pentagon has two sides equal to ecah other, (vertical side) the the base and top are all equal to each other
February 20, 2013

Help math
$4000 invested at an APR of 9% for 10 years What is the amount of money after 10 years
January 27, 2013

I don't understand how you did it help
A $4000 deposit at an APR of 5.6% with a quarterly compounding for 8 years . The amount after 8 years would be ???
January 27, 2013

Help on my math question
A $2,000 deposit at an APR of 5.4% with quarterly compounding for 8 years. The amount after 8 years ?? I need to find what the amount would be after 8 years please help This not Dave my name is Tommy I don't even know who Dave is and I'm sorry if you think I am I don&#...
January 27, 2013

MATH PLESE
This not Dave my name is Tommy I don't even know who Dave is and I'm sorry if you think I am I don't know how to solve these . My dad would get really mad he is the president of Harvard lol so you can see I'm in a tight squeeze.
January 27, 2013

MATH PLESE
A $2,000 deposit at an APR of 5.4% with quarterly compounding for 8 years. The amount after 8 years ?? I need to find what the amount would be after 8 years please help
January 27, 2013

History
8. What happened to Japanese Americans during World War II? A.) They were forced to leave the country. B.)They stayed in their homes. C.) They all joined the Japanese army. D.) They were sent to internment camps. I think it is C. Thank You.
January 24, 2013

Physics
The pressure of a gas in a cylinder with a movable piston is increased from 45 kPa to 90 kPa. If the temperature is held constant, and the initial volume of the gas in the cylinder is 0.5 m^3, what is the final volume of the gas? a. 2 m^3 b. 1 m^3 c. 0.5 m^3 d. 0.25 m^3 e. 0....
January 22, 2013

Physics
The pressure of a gas in a cylinder with a movable piston is increased from 45 kPa to 90 kPa. If the temperature is held constant, and the initial volume of the gas in the cylinder is 0.5 m3, what is the final volume of the gas? a. 2 m3 b. 1 m3 c. 0.5 m3 d. 0.25 m3
January 22, 2013

Physics
The pressure of a gas in a cylinder with a movable piston is increased from 45 kPa to 90 kPa. If the temperature is held constant, and the initial volume of the gas in the cylinder is 0.5 m3, what is the final volume of the gas? a. 2 m3 b. 1 m3 c. 0.5 m3 d. 0.25 m3
January 22, 2013

Physics
Suppose you have a very long straw that can reach from a cup of water on the ground level to the top of a very tall building. When you use a pump to suck on the straw in order to bring water up, a. you can bring the water up to any height with no problem. b. you can bring the ...
January 18, 2013

physics
A 200.0 N force moves a 120.0 kg crate on a friction less surface from rest to final speed of 9.6 m/s. what is the displacement of the crate at the time it reaches this speed ?
January 12, 2013

20 question please check my answers
Good Job, Great ALL Answer is right !
November 30, 2012

History
Some ideas perhaps??
November 16, 2012

History
Type a short character sketch of a fictional Puritan named Justice Johnson based on what you have learned about the Puritans. Make certain that you describe how he dresses, how he lives, what he believes, how he spends his time--in short, describe him so that a stranger, who ...
November 16, 2012

physics
A sports car has a weight of 9,300 N and can accelerate from rest to a velocity of 30.0 m/s in a measured time of 11s.1)what is the mass of the car? 2) what is the kinetic energy of the car at the end of this acceleration?
November 8, 2012

Physics
At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.3 m/s2. At the same instant a truck is 11.7 m down the road and traveling with a constant speed of 10.4 m/s. (a) How far beyond the traffic signal will the automobile ...
October 24, 2012

science
it dorsn't give me a stage in the second stage, some animals just grow larger.Other change in___________
September 28, 2012

science
In the second stage, some animals just grow large. Ohters change in -----------
September 28, 2012

Calculus 1
Evaluate the following limits after identifying the indeterminate form. Use Hospital's rule. d) lim x_0+ (xe^(2x) + 1)^(5/x) e) lim x_(Pi/2)+ (1 + sec3x)^(cot3x) Thank you!
April 26, 2012

calculus
the 0+ and (Pi/2)+ mean the limit is higher then and not + the fonction
April 26, 2012

calculus
Evaluate the following limits after identifying the indeterminate form. Use Hospital's rule. d) lim x_0+ (xe^(2x) + 1)^(5/x) e) lim x_(Pi/2)+ (1 + sec3x)^(cot3x) Thank you!
April 26, 2012

Integral calculus
Thank you both for taking your time to try this :)
April 20, 2012

Integral calculus
Yesterday I posted this number that I don't understand. There was a mistake in the question,this is the right one: ∫ (5^(3/x) - (x^8 + 9)^1/3 ) / 3x^2 will u, for sub. be = x^8 + 9? Then du is = 8x^7 dx x^7 dx = 1/8 du Thank you!
April 20, 2012

Integral calculus 2
thank you
April 19, 2012

Integral calculus 2
This is also one I can't figure out: ∫ x^3 (2x^2 + 1)^1/2 dx u is obviously = 2x^2 + 1 du = 4x dx x dx = 1/4 du 1/4 ∫ x^3 u^1/2 from here I know I can't integrate because I can't have more than 1 variable. Thank you
April 19, 2012

Integral calculus
I did mean 5^(3/x), sorry about that!
April 19, 2012

Integral calculus
Hello, this is the last question from my homework that I get stuck at: ∫ (5^3/x - (x^8 + 9)^1/3 ) / 3x^2 will u, for sub. be = x^8 + 9? Then du is = 8x^7 dx x^7 dx = 1/8 du from there I'm stuck. Thank you
April 19, 2012

infinite math
Hey guys! really need help with this one!!! On December 31, 1995, a house is purchased with the buyer taking out a 30-year $90,000 mortgage at 9% interest compounded monthly. The mortgage payments are made at the end of each month. Calculate: (A) the unpaid balance of the loan...
April 1, 2012

Math
If I am give the the sides of a triangle, where Side RA=4 Side AB=4.8 Side RB=7.1 How do I find Angle RAB? Thanks!
March 3, 2012

physics
Two dogs are fighting over a stuffed animal. One pulls to the right with a force of 88 N at 18° above the horizontal. The other pulls down and to the left with a force of 74 N at 12° below the horizontal. Ignoring the weight of the toy, if the total work on the animal ...
February 23, 2012

Economics
The service of mechanic in fixing the radiator of his car.ist excluded or included gross domestic product and how?
February 11, 2012

Physics
*at which the ball reached, sorry for my bad grammar
November 18, 2011

Physics
I just want to be sure if my answers make any sense! A kid throws a ball in the air and catches it 5 seconds later a) What is the initial velocity of the ball? No air friction. b) What is the maximum height which the ball has reached above its departure point? c) If this kid ...
November 18, 2011

Genetics
1) For each of the following partial diploids, give the cellular phenotypes for A and B. Explain. A B a. for a negatively regulated gene: F’pR- poA-B/ pR po-AB- F’p-R p-oA-B/ pR- poAB- b. for a positively regulated gene: F’pR- poA-B/ pR po-AB- F’p-R p-oA-B...
November 18, 2011

Math - Calculus
woah, now this will make my life so much easier, thank you
November 14, 2011

Math - Calculus
find the derivative of: g(x) = log[(x^3+1)^3(x^3-1)^3)]
November 14, 2011

Staitstics
What statistical test would be appropriate for a sample size of 25
November 8, 2011

algebra
the dart from a high-powered dart gun follows a path given by h(t)=-4t^2+62t+10 where h is the height in inches t seconds after it is fired. What is the maximum height reached? how many seconds did it take to reach this height?
November 2, 2011

Optimization (Math)
I understand now, thanks a lot steve!
November 1, 2011

Optimization (Math)
sorry for the drawing, apparently it didn't work when I submitted the question!
November 1, 2011

Optimization (Math)
The mayor of a village wants to build a library of which the windows have a shape of a rectangle on top of a square. The total perimeter of each window is of P meters and varies depending on each windows size. Find the dimensions of the windows in terms of P, that maximizes ...
November 1, 2011

Discrete Math
What is the probability that a fair coin lands Heads 4 times out of 5 flips? Out of bit strings of length ten, what is the probability that the bit string begins and ends with 0? What if the bit string has more 0s than 1s? and, what if the bit string has the sum of its digits ...
October 30, 2011

Biology
What are the three reaction pathways which pyruvate undergoes in the metabolic pathways inside the cell and what are the names of the final products of each of these pathways?
October 26, 2011

Holy Nsmr
If 3 grams of magnesium consume 2 grams of oxygen while burning, how much oxide will be formed?
October 6, 2011

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