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April 18, 2014

Homework Help: Computers: Operating Systems

Recent Homework Questions About Operating Systems

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Technology
A printer is a/an: Choose all which apply. a) input device b) output device c) data storage device d) operating system
Tuesday, September 10, 2013 at 12:15pm

Mathematics
Solve the following system of linear equations using the matrix inverse method. \begin{array}{ccc} 3x+2y&=&7 \\ 4x+3y&=&10\end{array}
Monday, September 9, 2013 at 8:39pm

ela
Our solar system Is a super gem. It has a great sun Its age is 4.6 billion.
Monday, September 9, 2013 at 5:31pm

ela
can someone help me think of a rhyme to remember the solar system was formed 4.6 billion years ago
Monday, September 9, 2013 at 5:28pm

ela
What is it you want to remember about the solar system?
Monday, September 9, 2013 at 5:06pm

ela
I need a rhyme to remember the solar system formed around 4.6 billion years ago ?
Monday, September 9, 2013 at 5:04pm

Math - System of Equations
C = L-100 2C = L+122 C = 222 L = 322 So, 544 votes were cast
Monday, September 9, 2013 at 2:29pm

Math - System of Equations
Clark and Lois ran for class president. Clark received 100 fewer votes than Lois. If Clark had received twice as many votes(and Lois had received the same amount), he would have won by 122 votes. How many votes were cast in the election, assuming that no one else received any ...
Monday, September 9, 2013 at 1:56pm

Solar system
http://imagine.gsfc.nasa.gov/docs/ask_as​tro/answers/981026a.html
Monday, September 9, 2013 at 4:26am

accounting
ABC Company uses cash basis accounting for its records. During 2010, ABC collected $400,000 from its customers, made payments of $300,000 to its suppliers for inventory, and paid $140,000 for operating costs. ABC wants to prepare accrual basis financial statements. In ...
Monday, September 9, 2013 at 1:25am

Solar system
Why do objects in the solar system spin in the same direction?
Sunday, September 8, 2013 at 11:00pm

Quantum Physics
1] Given qubit 1 in the state 35|0>+45|1> and qubit 2 in the state 12√|0>+i2√|1>, what is the state of the composite system? in form of a│00> + b│01> + c│10> + d│11> find a b c d. 2] Which of the following states is ...
Sunday, September 8, 2013 at 5:46am

Quantum physics
1] Given qubit 1 in the state 35|0>+45|1> and qubit 2 in the state 12√|0>+i2√|1>, what is the state of the composite system? in form of a│00> + b│01> + c│10> + d│11> find a b c d. 2] Which of the following states is ...
Saturday, September 7, 2013 at 11:41pm

Physics
A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's initial velocity and acceleration are v0x = +6.6 m/s and ax = +2.0 m/s2. The y components of the puck's initial velocity and acceleration are ...
Saturday, September 7, 2013 at 9:23pm

physics
Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the location of the first team as 37 km away, 24° north of west, and the second team as 34 km away, 38° east of north. When the first team uses ...
Saturday, September 7, 2013 at 4:31pm

history
If Catal huyuk had been built near a major river system, how might life have been different? Check my answer. Floods, fire, drought and other natural disasters could destroy a village. Diseases such as malaria could spread easily among people living closely together.
Saturday, September 7, 2013 at 7:25am

history
If Catal huyuk had been built near s major river system, how might life have been different?
Saturday, September 7, 2013 at 6:45am

biology
Methyl mercury is a toxic substance that can harm the nervous system. Some fish are contaminated with high levels of methyl mercury. In many places, these fish are an important food source. Experiments are being conducted to determine how many meals of contaminated fish can be...
Friday, September 6, 2013 at 6:07pm

Organic Chemistry
You could use S.M.I.L.E.S. (Simplified Molecular-Input Line-Entry System) CC=C(C)C=CC 4-methyl-2,5-heptadiene has two points of E/Z isomerism--the double bond--and one point for R/S isomerism-the central carbon. When both bonds have the same isomerism the central carbon is ...
Friday, September 6, 2013 at 1:25am

small engane
FIGURE A-9—This photo should be used to answer Question 15. 15. Two small engine technicians are disassembling the engine shown in Figure A-9. After observing the engine components, both technicians say that this engine has a splash-type lubrication system. Technician A ...
Thursday, September 5, 2013 at 5:30pm

accounting
Sam is trying to decide whether he should operate his business as a C cor- poration or as an S corporation. Due to potential environmental hazard problems, it is imperative that the business have limited liability. Sam is leaning toward the S corpora- tion form because it ...
Thursday, September 5, 2013 at 2:45pm

Health
In the 1950s, we didn't have medical insurance. I don't think anyone did! My parents bought accident insurance each school year for my brother and me, but that was about it. I had a tonsillectomy when I was about 6, and my mother told me the doctor did the surgery in ...
Thursday, September 5, 2013 at 8:12am

Math
Depends on whether you like to work in base 10 or base 7. We use a base-10 system, meaning that each digit represents a power of 10: 1,10,100,1000, etc.
Wednesday, September 4, 2013 at 11:25pm

walden
4.During the energy crisis of the 1970s, and again in the last 5 years, Congress bemoaned the “price gouging” and “windfall” profits of the major oil companies. In the 1970s Congress imposed an “excess profits tax” on these companies. It did not ...
Wednesday, September 4, 2013 at 1:24pm

Physics
In a hydraulic system, piston 1 has a surface area of 100 cm2, and piston 2 has a surface area of 900 cm2. A force of 150 N is exerted on piston 1 of the hydraulic lift. What force will be exerted on piston 2?
Wednesday, September 4, 2013 at 10:47am

Physical Science
If no friction acts on a diver during a dive, then which of the following statements is true? A. The total mechanical energy of the system increases. B. Potential energy can be converted into kinetic energy but not vice versa. C. (KE+ PE)beginning = (KE + PE)end D. all of the ...
Tuesday, September 3, 2013 at 3:28pm

computers
Stupid choices. There is no "best" system for everyone; it depends on your computing needs and security concerns.
Sunday, September 1, 2013 at 7:23pm

Business COMMUNICATION 340
I need help I am not sure how to revise these sentences without leaving out or leaving in to much information if someone would please help me. Revising Messages: Directness and Conciseness Revise the following short e-mail messages so that they are more direct and concise; ...
Sunday, September 1, 2013 at 3:37pm

computers
Duane will use an open system LAN because he knows the open system will support varieties of hardware and software components made by different vendors. Steve will use a closed system LAN because he knows the closed system is favored by network manufacturers. Who is using the ...
Sunday, September 1, 2013 at 2:30pm

pHysics !!
A 20-g bullet is fired horizontally into a 980 g block of wood suspended by a long cord. The bullet sticks in the block and causes the block to swing 15 cm above its initial level. a) What is the momentum of the bullet before it hit the block? b) Determine the velocity of the ...
Sunday, September 1, 2013 at 11:23am

maths
Set up a system of equations: Let W=width L=length then Perimeter = 54 = 2(L+W) ...(1) L=2W-3 ...(2) Solve W by substituting (2) in (1), and hence solve for L.
Sunday, September 1, 2013 at 11:14am

thermodynamics
Technology advancements have changed the answer. It depends on what lighting system they use. The old Incandescent Lamp 'light bulb' emits most of its energy consumption as heat, and would reduce the load on the heater. However, a modern Compact Fluorescent Lamp or LED...
Sunday, September 1, 2013 at 1:51am

Vectors
How to solve a system of equations if there are FOUR equations with THREE unknowns?
Wednesday, August 28, 2013 at 11:48pm

hca 415
U.S. Health Care System Critical Issues The size, scope, and complexity of the U.S. health system makes it difficult to deliver quality care to all of its citizens. What do you believe are the three most critical issues facing the health care system in the United States today...
Wednesday, August 28, 2013 at 5:08pm

government
I agree with Jere a. the electoral system
Wednesday, August 28, 2013 at 4:16pm

Chemistry
These are stoichiometry problems. All are done the same way. Here is the system. (Note: Technically there will be no H2O produced without H2 and it must be an excess of H2 if you want all of the oxygen to react. I think that's what the problem wants but it doesn't say ...
Wednesday, August 28, 2013 at 10:43am

PHYsics !!
a) What do you understand by Simple Harmonic Motion? b) A simple harmonic motions is characterized by the equation x = (10 cm) sin (0.1t + ) where, x is in cm and t is in seconds Determine the i. amplitude and angular frequency. ii. linear frequency and period. iii. ...
Tuesday, August 27, 2013 at 9:32am

Pyhsical Science
What is a system of knowledge and the methods used to find that knowledge? A. science B. technology C. measurement D. curiosity I think it's D.
Tuesday, August 27, 2013 at 7:10am

algebra 2
SOlve the system of inequalites by graphing. y< -4x-2 - y >3x-3
Monday, August 26, 2013 at 10:51pm

physics
this is what you got: 70 at W10°N takes them (-98.48,+17.36) but on a coordinate grid system, wouldn't 10 degrees N of W mean 170 degrees? so shouldn't the second part be <70 cos 170, 70 sin 170> the first part is the same, but the second part is different, ...
Monday, August 26, 2013 at 9:52pm

financing and budget
which of the following categories makes up the largest percentage of a child care operating budget/ a. supplies b. salaries benefits c. food. mortgage or rent
Monday, August 26, 2013 at 2:50pm

physics
A ballistics pendulum is a device used to measure the speed of a fast moving projectile such as a bullet. A bullet of mass 5g is fired into a large block of wood of mass 1.5kg suspended from some light wires. The bullet is stopped by the block and the entire system swings ...
Sunday, August 25, 2013 at 2:51am

physics
A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 79.0 m/s at ground level. The engines then fire, and the rocket accelerates upward at 3.90 m/s2 until it reaches an altitude of 980 m. At that point its engines fail, and the...
Sunday, August 25, 2013 at 2:06am

Psychology
Thank you, Ma'am! Are you able to check these for me? 1. Many assumptions about how things should be such as that the husband should be the major wage earner in a married relatinship are: A. social constructions (i chose this one) B. universally accepted C. objective ...
Saturday, August 24, 2013 at 9:31pm

operating a car
thank you.
Saturday, August 24, 2013 at 12:02pm

operating a car
I agree. Check out any car ad and that's what you will find.
Saturday, August 24, 2013 at 12:32am

operating a car
Non-standard equipment and accessories added to the basic vehicle are generally called: A. luxury items. B. options. C. add-ons. D. an extended warranty. i think its b
Friday, August 23, 2013 at 11:49pm

Finance
1. Briarcrest Condiments is a spice-making firm. Recently, it developed a new process for producing spices. The process requires new machinery that would cost $2,218,246. have a life of five years, and would produce the cash flows shown in the following table. Year Cash Flow 1...
Friday, August 23, 2013 at 7:41pm

Finance
Can you show me how to solve these problems? PLEASE!!! I can't figure out how to solve these. :-( 1.Briarcrest Condiments is a spice-making firm. Recently, it developed a new process for producing spices. The process requires new machinery that would cost $1,953,490. have ...
Friday, August 23, 2013 at 3:19pm

Math
Solve the system of equations 3x-y=11 -5x+y=12 2. Perform the indicated operation and simplify (5/(x-2)+(4(x^2-2x) 3.simpify and write with only positive exponents (7x^3y^-2)/(x^-4y^9)^-3 4. find the solution of the inequality 2x-11 is less than or equal to -4(5x-3) 5. the ...
Thursday, August 22, 2013 at 9:38pm

Quantum Physics
If the first qubit is in the state √2/√3√|0>+1/√​3|1> and the second qubit is in the state 1/√3|0>+√2/√3|1>​, what is the state of the composite system?
Thursday, August 22, 2013 at 12:49pm

physics
The Hyperloop is a hypothetical new fast transport system between cities, which works by launching pods that carry people through a very low air pressure tunnel. The Hyperloop reduces friction between the pods and the tunnel by supporting the pod on a cushion of air. This air ...
Thursday, August 22, 2013 at 9:37am

English
1 The lack of a ___ system of measurement is an international problem. scanty, uniform, transient, instantaneous 2. Almost ____ communication kept the President up-to-the-minute with events at the conference. exponential, transient, instantaneous, nostalgic 1. uniform 2....
Wednesday, August 21, 2013 at 11:41pm

writing
How can I rewrite this introduction paragraph as a CONCLUSION paragraph? Tuesdays with Morrie is a very meaningful and powerful novel. In the novel the author Mitch album is recapping on the last few weeks he spent with his dear friend and college professor Morrie Schwartz who...
Tuesday, August 20, 2013 at 3:10pm

Calculus
Rainflow is a new U- Shaped system of guttering. The cross section is a semi circle with a radius of x topped by an open rectangle of height h. The total distance ABC is 20cm For which values of x and h will rainflow carry the most water ?
Monday, August 19, 2013 at 4:47am

Physics
if KE is lost, energy was not conserved. So, momentum is not conserved. The missing energy is lost as heat. It's still present in the system, but the moving bodies no longer account for all the energy in the system.
Saturday, August 17, 2013 at 12:41am

Physics
block a 10 kg is connected to block b 20 kg by a mass less string on a horizontal surface (coefficient of kinetic friction 0.1). block b is connected by another string to a hanging mass M through a mass less pulley. what is the minimun value of M that will make the system move?
Thursday, August 15, 2013 at 2:31am

Business/Finance
When considering how profitably your company is operating, you examine: a) inventory turnover. b) sales and the return on your investment. c) depreciation and liquidity. d) tangible and intangible assets. e) the price of the Canadian dollar. I think the answer should be b = ...
Wednesday, August 14, 2013 at 9:01pm

Acc/230
Provide an example from the text or the Internet that demonstrates a situation in which a company’s net profits appeared good in the statements, but the gross or operating profits presented a different picture. Discuss how this might have occurred. Respond to the ...
Wednesday, August 14, 2013 at 7:20pm

physisc
why is nitrogen builds up into your system
Wednesday, August 14, 2013 at 6:48am

physics (please help elena)
Three planets interact with one another through their mutual gravitational forces only; they are isolated in free space and do not interact with any other bodies. They orbit around an axis going through the center-of-mass of the system and perpendicular to the triangle formed ...
Monday, August 12, 2013 at 2:53pm

math
Let x = number of Ryan's stickers Let y = number of Tony's stickers From the first statement, (2/3)x = (3/4)y From the second statement, x - 48 = y + 48 Then we solve for x and y. There are many ways to solve this system, but let's do substitution. To do ...
Monday, August 12, 2013 at 7:09am

MATH.
You'll need to setup algebraic equations and then solve the system for the "other number". Do you know how to get started?
Sunday, August 11, 2013 at 6:18pm

accounting
Working capital b. Current ratio c. Acid-test ratio d. Cash ratio e. Days' sales in receivables f. Accounts receivable turnover in days g. Days' sales in inventory h. Inventory turnover in days i. Operating cycle
Sunday, August 11, 2013 at 2:14am

Math
Consider the weighted voting system [75: 31, 29, 23, 16, 8, 7]. Find each: a. The total number of players b. The total number of votes c. The weight of P3 d. The minimum percentage of the votes needed to pass a motion 9rounded to the next whole percent)
Friday, August 9, 2013 at 5:47pm

To Devron--chemistry
I have learned through experience that students in the UK use spilt while US uses spilled. Same thing for spelling colour or odour or sulphur etc. Canadian students spell the same as the British. I don't know if Sarah is Canadian but UK for sure. The aussies are UK also. ...
Friday, August 9, 2013 at 2:38pm

p chem
I assume that is 131.8 and 100.0 J/K*mol. dSmix = -R(ni*ln xi where ni and xi stand for mols and mol faction of the components. dSmix = -8.314[(1*0.5*ln 0.5) + (1*0.5*ln 0.5)] = +5.763 J/K q CCl4 = mass x Cp x (Tf-Ti) q = 0.5 mol x 131.8 J/K*mol x 2 = 131.8 J dS = q/299 = 0....
Thursday, August 8, 2013 at 6:56pm

p chem
1/2 mole CCl4 @ 25 C was mixed with 1/2 mole CH2Cl2 @ 25C. The final T was 27 C. Calculate delta S mixing, delta S for CCl4 on heating, delta S for CH2Cl2 on heating, and delta S system. Assume 131.8 J/K for Cp for CCl4 and 100.0 J/K for Cp for CH2Cl2.
Thursday, August 8, 2013 at 6:12pm

Finance
What type of cost measurements best fit in healthcare and which do not? How do cost measurement techniques vary with regard to the operating budget, capital budget, and variance analysis?
Thursday, August 8, 2013 at 7:28am

Math
I would like to know if I got this problem correct. The perimeter of a rectangle is 42ft. the length is 7ft. longer than the width find the dimensions. Write a system linear equation an solve the resulting system let x be the length and y be the width. 2x+2y=42 y+x=21 y+(y+7)=...
Monday, August 5, 2013 at 9:38pm

Physiology
What are the different nuances of meaning associated with the expressions brain damage and central nervous system impairment?
Monday, August 5, 2013 at 9:30pm

Math
The perimeter of a rectangle is 42ft. The length is 7ft. longer than the width. Find the dimensions. Write a system of linear equations and solve the resulting system. Let X be the length, and Y be the width.
Monday, August 5, 2013 at 8:26pm

Math
The perimeter of a rectangle is 36ft. the length is 10ft. longer than the width find the dimensions. Write a system linear equation an solve the resulting system let x be the length and y be the width.
Monday, August 5, 2013 at 6:42pm

Math
You need to solve this system of equations: S = J - 4 (J + 4) = S * 2 Do you have any thoughts on how to do this?
Monday, August 5, 2013 at 4:22pm

math30
A security code used to consist of two odd digits, followed by four even digits. To allow more codes to be generated, a new system uses two even digits, followed by any three digits. If repeated digits are allowed, the increase in the number of possible codes is____ Answer: ...
Monday, August 5, 2013 at 2:00pm

Health Care
I cannot figure out the GAAP and the relevance of each GAAP that is being used to create the financial plan for Patton-Fuller Hospital. I did complete the following budget projections necessary to help answer the question Patton-Fuller Community Hospital Statement of Revenue ...
Saturday, August 3, 2013 at 9:12am

American history
The overlap of state and national functions resembles the interweaving of flavors in the cake. state and national functions are very distinct. it is clear where state authority ends and national authority begins. federalism is really a mushy system.
Friday, August 2, 2013 at 7:40pm

POL 201
The federal system can be thought of as a marble cake because
Friday, August 2, 2013 at 7:26pm

American history
The federal system can be thought of as a marble cake because
Friday, August 2, 2013 at 7:12pm

Physics
2 objects are connected on an inclined table. The objects have masses 8.0kg, 4.0kg, and 2.0kg, and the pulleys are frictionless. (The one that is 8.0 is suspended from a pulley off the left side of the table, 4.0kg is on the table, and 2.0kg is suspended from the pulley of the...
Friday, August 2, 2013 at 1:32pm

Chem
Ka1 = 4.5E-7 and Ka2 = 4.7E-11 for the carbonate system. Ksp is 5.0E-9 and Kw =1.0E-14. A town’s groundwater has [Ca2+] = 37 mg/L, alkalinity of 1.36E-3eq/L and pH of 8. This is to be mixed with surface water with [Ca2+] = 4mg/L, alkalinity of 8.0E-4 eq/L and pH of 9.5. ...
Friday, August 2, 2013 at 8:14am

Life orientation
What are causes of social issue.what are five factors of social issue.the impact of the contemporary of social issue. How the contemporary social issue impact negative on local and global communities list five.give a detail description of your plan and activities.when,where ...
Thursday, August 1, 2013 at 1:34pm

Writing
Please grade this and make corrections. ACT writing prompt: The Children's Internet Protection ACT (CIPA) requires all school libraries receiving certain federal funds to install and use blocking software to prevent students from viewing material considered "harmful ...
Wednesday, July 31, 2013 at 11:31pm

Chem
Ka1 = 4.5E-7 and Ka2 = 4.7E-11 for the carbonate system. Ksp is 5.0E-9 and Kw =1.0E-14. A town’s groundwater has [Ca2+] = 37 mg/L, alkalinity of 1.36E-3eq/L and pH of 8. This is to be mixed with surface water with [Ca2+] = 4mg/L, alkalinity of 8.0E-4 eq/L and pH of 9.5. ...
Wednesday, July 31, 2013 at 9:20pm

social studies
Is this answer right? my answer has ( ) around it The first fully developed American factory system emerged in the _______ industry. A. iron B. distilling C. sugarcane (D). textile
Tuesday, July 30, 2013 at 6:23pm

Physics
Use the PV diagram of a system. The units for P and V are atmospheric pressure atm and liter L. Process A to B and B to C are straight lines on it. How much is the work done by the system from A to C in J? Given these coordinates:(volume on the x, pressure on the y) A: (1 Li, ...
Tuesday, July 30, 2013 at 3:52pm

statistics
In a poll of 700 selected people in the USA who are 50 years or older, 20% said they would prefer a complete overhauling of the social security system. Estimate the population proportion of the USA of 50 years or older who would prefer a complete overhauling of the social ...
Tuesday, July 30, 2013 at 1:52pm

Discrete Mathematics
15. The augmented matrix A represents a system of three real-valued equations in three unknowns. Which of the answer choices would result from the usual first step of applying Gauss-Jordan elimination? A = (1 4 2 3) A = (2 9 13 18) A = (3 10 8 15)
Tuesday, July 30, 2013 at 1:18pm

Discrete Mathematics
The augmented matrix A represents a system of three real-valued equations in three unknowns. Which of the answer choices would result from the usual first step of applying Gauss-Jordan elimination?
Tuesday, July 30, 2013 at 4:57am

Chemistry- Please Help!!
Ca(IO3)2 ==> Ca^2+ + 2IO3^- The easy way to remember what happens is to remember Le Chatelier's principle. It says that a system is equilibrium will try to undo what we do to it. Therefore, if we increase Ca^2+ (whether starting or not) the reaction will try to remove ...
Monday, July 29, 2013 at 12:06am

Chemistry- Please Help!!
Ca(IO3)2 (s) <=> Ca{2+} (aq) + 2 IO3{-} (aq) LeChatelier's principle (general form): Any change in status-quo prompts an opposing reaction in the responding system. So increasing the starting concentration of calcium cation will oppose its production. That is to ...
Monday, July 29, 2013 at 12:04am

POL 201 American National Government
1) Presidents often seek to control the federal bureaucracy by doing all of the following except: a) filling the top echelon of executive organizations with political appointees who share their values. b) assigning members of the White House staff responsibility for monitoring...
Sunday, July 28, 2013 at 8:42pm

Accounting
The Clydesdale Company has sales of $4,500,000. It also has invested assets of $2,000,000 and operating expenses of $3,600,000. The company has established a minimum rate of return of 7%. What is Clydesdale Company's profit margin? A.20% B.80% C.44.4% D.18%
Sunday, July 28, 2013 at 6:48pm

chemistry
The kinetic energy of a rolling billiard ball is given by KE=1/2mv2. Suppose a 0.17-kg billiard ball is rolling down a pool table with an initial speed of 4.7m/s . As it travels, it loses some of its energy as heat. The ball slows down to 3.7m/s and then collides straight-on ...
Saturday, July 27, 2013 at 12:33am

General Physics 1
A simple Atwood's machine uses a massless pulley and two masses m1 and m2. Starting from rest, the speed of the two masses is 4.8 m/s at the end of 5.5 s. At that time, the kinetic energy of the system is 33 J and each mass has moved a distance of 13.2 m. 1. Find the value...
Friday, July 26, 2013 at 1:03pm

Psychology
One of the interesting aspects of family therapy is the "system" or roles which are assumed by family members. A good example would be _______________. 
A. the​ father sometimes comes home late
 B. the mother has difficulty making ...
Friday, July 26, 2013 at 12:22pm

psychology
Nelda is fearful of public places and has managed to stay "at home" for the last three years. She and her therapist have developed a strategy. During the first week, she will go to the front door and open it and look outside. If she can remain calm, the goal for the ...
Thursday, July 25, 2013 at 6:44pm

Math
Use the elimination method to solve the system of equations 5u+2v=15 3u+v=-7
Thursday, July 25, 2013 at 1:37pm

Chemistry re-post
Okay guys, this problem is really bugging me. I initially saw it and declined to try and solve it. However, after Nancy reposted the question, I thought that I would see if I could take a stab at it. I did back calculations and obtained 0.55 moles, but I could not figure out ...
Thursday, July 25, 2013 at 1:37am

College Algebra
Solve system by method of elimination 0.07x + 0.02y =-0.07 0.08x - 0.06y = 0.07
Wednesday, July 24, 2013 at 11:18pm

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