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April 19, 2014

Homework Help: Computers: Operating Systems

Recent Homework Questions About Operating Systems

Post a New Question | Current Questions

HISTORY (please help)
3. By the end of the thirteenth century, the institutionalization of the English Parliament: A. provided the foundation for the absolute rule of the monarch. B. enabled the barons and church lords to establish themselves in the House of Commons. C. was a system of power ...
Monday, February 3, 2014 at 4:42pm

Physics
Damon, this is my last question for today for you. Thanks for all your help. A gas is at an initial pressure of 1.24104 Pa and occupies a volume of 0.28 m3. The (slow) addition of 23,570 cal of heat to the system causes it to expand in an isobaric manner to a volume of 0.47 m3...
Monday, February 3, 2014 at 4:23pm

Physics
I think I chose the correct answer. In a closed system, two carts have a compressed spring between them. One of the carts has a total mass, including its contents, of 2.0 kg, and the other has total mass of 1.0 kg. Which cart experiences the momentum change of greater ...
Monday, February 3, 2014 at 3:46pm

History
3. By the end of the thirteenth century, the institutionalization of the English Parliament: A. provided the foundation for the absolute rule of the monarch. B. enabled the barons and church lords to establish themselves in the House of Commons. C. was a system of power ...
Monday, February 3, 2014 at 3:25pm

physics 1
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 = +3.5 m/s and ax = +5.8 m/s2. The y components of the puck's initial velocity and acceleration are ...
Monday, February 3, 2014 at 2:48pm

Physics
Once again, it is true again and again: Momentum before = momentum after if no EXTERNAL force on system, like here: 0 = 5 v + 3 * 3 v = -9/5 = -1.8
Monday, February 3, 2014 at 2:04pm

Physics
Am I correct? Two carts have a compressed spring between them and are initially at rest. One of the carts has total mass, including its contents, of 5.0 kg, and the other has total mass of 3.0 kg. If the 3.0 kg cart is moving at 3.0 m/s after the spring is allowed to push the ...
Monday, February 3, 2014 at 1:58pm

social studies (CHECK ASNWERS)
please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key leaders. C.It ended ...
Monday, February 3, 2014 at 1:44pm

Physics
Guide me through this plz. A single 1,300 kg cargo train car is rolling along a train track at 2.0 m/s when 400 kg of coal is dropped vertically into it. What is its velocity right afterward? Assume a closed system. (Points : 1) 1.5 m/s 2.0 m/s 6.5 m/s 0.0011 m/s
Monday, February 3, 2014 at 1:42pm

Physics Please check my answers
It's possible for a body to have both rotational and translational motion at the same time. True. << False. 2. The moment of inertia of an object would be different on the surface of the earth than on the surface of the moon. True. << False. 3. The moment of ...
Monday, February 3, 2014 at 1:01pm

physics 1
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 = +3.5 m/s and ax = +5.8 m/s2. The y components of the puck's initial velocity and acceleration are ...
Monday, February 3, 2014 at 12:14pm

physics
Suppose that a public address system emits sound uniformly in all directions and that there are no reflections. The intensity at a location 20 m away from the sound source is 3.0 × 10-4 W/m2. What is the intensity at a spot that is 87 m away?
Monday, February 3, 2014 at 11:13am

Science (Chemistry)
After submitting the answer, this is what I received as feedback. The system is marking that the amount of moles of precipitate was incorrect, although when I did the problem originally I got the same number that you did. I am just posting this feedback for future reference, ...
Sunday, February 2, 2014 at 10:22pm

English
Please correct!! Gulliver's Travels questions 3.) How are the people of Brobdingnag different from the people of Lilliput? Choose the best answer. A.) The Lilliputians are much more peaceful B.) A king instead of a queen rules the Lilliputians, C.) The Lilliputian ...
Sunday, February 2, 2014 at 9:12pm

Science
Which of the following best summarizes the function of the respiratory system? A. to transport oxygen to cells and wastes away from cells. B. to protect the organs in the chest cavity C. to move oxygen from the air into the body and carbon dioxide from the body into the air D...
Sunday, February 2, 2014 at 8:05pm

Quick math help
I need help on how to do system applications word problems. I just don't get this at all :( 1. The ravens won twice as many games as they lost. They played 96 games. How many games did they win? 2. State college has 620 students. There are 20 more women than men. How many ...
Sunday, February 2, 2014 at 7:01pm

Science
Which of the following best summarizes the function of the respiratory system? A. to transport oxygen to cells and wastes away from cells. B. to protect the organs in the chest cavity C. to move oxygen from the air into the body and carbon dioxide from the body into the air D...
Sunday, February 2, 2014 at 6:59pm

Science
Name the components of the respiratory system in the order incoming air would encounter them during breathing. A. trachea, pharynx, larynx, alveoli, bronchi B. bronchi, larynx, alveloi, trachea, pharynx C. larynx, trachea, bronchi, pharynx, alveoli D. pharynx, larynx, trachea...
Sunday, February 2, 2014 at 5:11pm

Social Studies (Ms.Sue)
I am confused, though. In my literature textbook, it states that "this incident sparked a boycott that led to the end of segregation on the Montgomery bus system. Her courageous action marked the start of the civil rights movement." However, when I asked you, you ...
Sunday, February 2, 2014 at 4:02pm

Science
Name the components of the respiratory system in the order incoming air would encounter them during breathing. A. trachea, pharynx, larynx, alveoli, bronchi B. bronchi, larynx, alveloi, trachea, pharynx C. larynx, trachea, bronchi, pharynx, alveoli D. pharynx, larynx, trachea...
Sunday, February 2, 2014 at 3:49pm

American History
A series of legislative acts passed under the Grant administration in 1870 and 1871 authorized federal protection for black suffrage through the use of the Army against the Ku Klux Klan. Together, these were known as the _______ Acts. A. Force B. Reconciliation C. Grant D. ...
Sunday, February 2, 2014 at 3:35pm

Math
I'm struggling with system applications word problems. Can some please explain on how to do it? Thanks
Sunday, February 2, 2014 at 2:40pm

Politics
1. The heart of Martin v. Hunter’s Lessee was D A. whether treaties are supreme laws of the land. B. whether states’ rights trumped national authority. C. the right of Virginia to seize property of traitors during war. D. whether the Supreme Court had authority to ...
Sunday, February 2, 2014 at 1:27pm

Politics
1. The heart of Martin v. Hunter’s Lessee was A. whether treaties are supreme laws of the land. B. whether states’ rights trumped national authority. C. the right of Virginia to seize property of traitors during war. D. whether the Supreme Court had authority to ...
Sunday, February 2, 2014 at 11:41am

Linux Mint 16
01. Your home directory can be represented by what single character? "-" or /home/<username> 02. What is a user friendly text editor which comes pre-installed in Mint that can be used directly in the terminal? 03. My boss just told me that they want to see a ...
Saturday, February 1, 2014 at 9:09pm

Pre-Algebra
This is a system of equations. There are three ways you can solve these types of problems, graphing, substitution, or elimination. I'll use eliminations for this one. Elimination means that you try to eliminate one of the variables. First, I multiply the second equation by...
Saturday, February 1, 2014 at 7:58pm

Science
1. _______ magma causes powerful and explosive volcanic eruptions. A. Andesitic B. Rhyolitic C. Basaltic D. Composite B? 2. A common characteristic of mountains formed by two colliding continents is marine _______ rock. A. sedimentary B. metamorphic C. limestone D. igneous A...
Saturday, February 1, 2014 at 3:54pm

Social Studies (Ms. Sue)
Correction: Her refusal to stand sparked a boycott that led to the end of the segregation on the Montgomery bus system. Therefore, her courageous action marked the start of the civil rights movement.
Saturday, February 1, 2014 at 3:42pm

physics
A projectile is launched from ground level at 37.0 m/s at an angle of 30.6 ° above horizontal. Use the launch point as the origin of your coordinate system. (a) How much time elapses before the projectile is at a point 8.9 m above the ground and heading downwards toward ...
Saturday, February 1, 2014 at 2:13pm

social studies(CHECK ASNWERS)
please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key leaders. C.It ended ...
Friday, January 31, 2014 at 11:53pm

Physics
For non-ideal oscillators (such as a real pendulum) energy is lost and the amplitude (which is the maximum displacement) is no longer constant but also decreases with time. How fast the energy lost is described by a TIME CONSTANT, τ = m/b. Typically after ONE time ...
Friday, January 31, 2014 at 11:19pm

physics
A projectile is launched from ground level at 37.0 m/s at an angle of 30.6 ° above horizontal. Use the launch point as the origin of your coordinate system. a)How much time elapses before the projectile is at a point 8.9 m above the ground and heading downwards toward the ...
Friday, January 31, 2014 at 10:19pm

Physics
A weight lifter manages to lift a 147 kg weight a distance of 1.1 m. Treat her as a thermodynamic system and find how much heat (in kcal) she must put out if her internal energy decreases by 3620 J during the lift.
Friday, January 31, 2014 at 5:59pm

Chemsitry
Consider the equilibrium A(g)=2B(g)+3C(g) at 25 degrees Celsius. When A is loaded into a cylinder at 10 atm and the system is allowed to come to equilibrium, the final pressure is found to be 12.13 atm. What is the standard gibbs free energy of reaction for this reaction.
Friday, January 31, 2014 at 2:56pm

Physics
A weight lifter manages to lift a 147 kg weight a distance of 1.1 m. Treat her as a thermodynamic system and find how much heat (in kcal) she must put out if her internal energy decreases by 3620 J during the lift. Not sure how to answer this.
Friday, January 31, 2014 at 11:08am

socialstudies(CHECK ANSWERS)
PLEASE CHECK MY ANSWERS please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few ...
Friday, January 31, 2014 at 1:13am

Biology
Viroids typically infect plant, while prions typically infect nervous system. Is this correct? thanks!
Thursday, January 30, 2014 at 10:36pm

Math help
I have a question. How would you solve a system if the variable and number is in front of the equals sign for example : y=3 4y=2x+18 I need help can someone guide me on this?
Thursday, January 30, 2014 at 8:50pm

Physics
Two speeding lead bullets each of mass 5 g and temperature of 20°C collide head on at speeds of 500m/s each. Assuming a perfectly inelastic collision and no loss of energy to the atmospheres, describe the final state of the two bullet system.
Thursday, January 30, 2014 at 8:41pm

Civics
What role do precedents play in our legal system? Help would be appreciated!! :-)
Thursday, January 30, 2014 at 5:11pm

scienceheat from burning fuel warms the walls of t
A. A hot heating system
Thursday, January 30, 2014 at 4:26pm

scienceheat from burning fuel warms the walls of t
Heat from burning fuel warms the walls of the firebox section of the furnace in A.a hot heating system B.an evaporation system c. a compressor compartment
Thursday, January 30, 2014 at 4:07pm

physics
A spring (k=80n/m) lies on a frictionless table, one end connected to the wall, the other to a 4kg block. The block is pulled, stretching the spring .5m. and then released. A) max elastic potential energy of system? b) total energy? C) what is the acceleration of the block at ...
Thursday, January 30, 2014 at 1:56pm

social studies(check answers)
please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key leaders. C.It ended ...
Thursday, January 30, 2014 at 1:50pm

science
plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance. If the changes are in ...
Thursday, January 30, 2014 at 2:49am

science
plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance. If the changes are in ...
Thursday, January 30, 2014 at 2:48am

Physics
plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance. If the changes are in ...
Thursday, January 30, 2014 at 2:48am

Science
plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance. If the changes are in ...
Thursday, January 30, 2014 at 2:47am

compressor operations
We are operating a centrifugal compressor. The gas composition does not change during this excursion. While holding suction pressure and flowrate constant, the inlet temperature rises. What would you expect to happen to the discharge pressure, and why
Wednesday, January 29, 2014 at 11:12pm

Centrifulag pump curve
Q4 The system on site is a pressure sand filter, with a service curve. The filter is backwashed using the feed pump, at a higher flow rate, shown as backwash curve. Service duty point : 3 m3/h Backwash duty point : 9 m3/h Part (a) (4 marks) What is the speed of the pump to ...
Wednesday, January 29, 2014 at 11:11pm

social studies (CHECK ANSWERS)
1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key leaders.(I PICK THIS) C.It ended the revolution. D.It lessened the power of the president. 2. It is hard for children in ...
Wednesday, January 29, 2014 at 11:02pm

Math
I still don't know how to directly solve this problem. Can someone guide to solve this system of equation by using the substitution method? Thanks! 1. Y=6x-5 Y=-x+9
Wednesday, January 29, 2014 at 9:17pm

history help plzzzzzz
1. What was the Trail of Tears? (1 point) the nickname given to Manifest Destiny by many Native Americans the battlefield where thousands of Cherokees were killed defending their home territory the path walked by Native Americans as they were forced to relocate to Indian ...
Wednesday, January 29, 2014 at 6:29pm

A & P
A young man happens to spot an ex-girlfriend he's trying to avoid. Why does his mouth become dry? A. His cranial nerves shut down saliva production. B. His central nervous system shuts down saliva production. C. His sympathetic nervous system overrides the parasympathetic...
Wednesday, January 29, 2014 at 5:24pm

Math
How would you solve each system by the substitution method? 1. Y=6x-5 Y=-x+9
Wednesday, January 29, 2014 at 3:55pm

social studies---check 1 question pls
Samuel Slater did the first spinning mill in the USA and is usually called the father of the American industrial revolution. Francis Lowell started the corporate mill factory system. I think the question could be worded better but think you are right to choose Lowell (besides...
Wednesday, January 29, 2014 at 12:29pm

social studies---check 1 question pls
6. Whose mill launched the factory system? (1 point) James Monroe Eli Whitney ***Samuel Slater*** Francis Cabot Lowell help pls
Wednesday, January 29, 2014 at 12:19pm

algebra
A fruit drink is 15% white grape juice. Use a system of equations to find the amount of pure white grape juice and the amount of this fruit drink needed to make 27 gallons of a new drink that is 21% white grape juice. Round to the nearest tenth
Wednesday, January 29, 2014 at 1:45am

PHYSICS
A block of mass m1 = 28 kg rests on a wedge of angle θ = 53∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Tuesday, January 28, 2014 at 9:05pm

Trigonometry
x cannot be -4, it can be all other numbers. on the real number system, x<-4<x or better, abs(x)>4
Tuesday, January 28, 2014 at 6:51pm

Physics
A block of mass m1 = 28 kg rests on a wedge of angle θ = 53∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Tuesday, January 28, 2014 at 2:56pm

physics
A block of mass m1 = 28 kg rests on a wedge of angle θ = 53∘ which is itself attached to a table (the wedge does not move in this problem). An inextensible string is attached to m1, passes over a frictionless pulley at the top of the wedge, and is then attached to ...
Tuesday, January 28, 2014 at 2:27pm

HTT / 230
Nance’s Restaurant, a local independent restaurant, is evaluating new point-of-sale (POS) systems and must determine if a new installation is feasible. A new POS installation would include both software and hardware, with a total cost of $20,000. Nance’s Restaurant ...
Tuesday, January 28, 2014 at 11:23am

American History
Under America's second party system, the Whigs stood for A. a "negative liberal state." B. policies that kept government hands off business and industry. C. policies that directly supported commercial enterprises D. a "liberally negligent" state I choose B
Tuesday, January 28, 2014 at 11:06am

Excelsior
he following transactions occurred during March 2009 for the Wainwright Corporation. The company owns and operates a wholesale warehouse. 1. Issued 30,000 shares of common stock in exchange for $300,000 in cash. 2. Purchased equipment of a cost of $40,000. $10,000 cash was ...
Tuesday, January 28, 2014 at 7:05am

Anatomy & Physiology
1. A young man happens to spot an ex-girlfriend he's trying to avoid. Why does his mouth become dry? A. His cranial nerves shut down saliva production. B. His central nervous system shuts down saliva production. C. His sympathetic nervous system overrides the ...
Tuesday, January 28, 2014 at 12:11am

Physics
A baggage carousel at an airport is rotating with an angular speed of 0.397 rad/s when the baggage begins to be loaded onto it. The moment of inertia of the carousel is 2440 kg·m2. Ten pieces of baggage with an average mass of 16.5 kg each are dropped vertically onto ...
Monday, January 27, 2014 at 10:40pm

Physics
A baggage carousel at an airport is rotating with an angular speed of 0.397 rad/s when the baggage begins to be loaded onto it. The moment of inertia of the carousel is 2440 kg·m2. Ten pieces of baggage with an average mass of 16.5 kg each are dropped vertically onto ...
Monday, January 27, 2014 at 10:10pm

Algebra 1~ For Reiny or Steve, I only have 5 min.
How many solutions does the system of equations have? 3x+12y=20 Y=-1/4x+5/3 (1 point) One*** Two Infinitely many None Jack has $55, and Emily has $28. Jack is saving $4 per day, and Emily is saving $13 per day. After how many days will Jack and Emily have the same amount of ...
Monday, January 27, 2014 at 9:24pm

Algebra 1
How many solutions does the system of equations have? 3x+12y=20 Y=-1/4x+5/3 (1 point) One*** Two Infinitely many None Jack has $55, and Emily has $28. Jack is saving $4 per day, and Emily is saving $13 per day. After how many days will Jack and Emily have the same amount of ...
Monday, January 27, 2014 at 8:59pm

Algebra
What would the solution to this system of equations be? y = x - 50 y = 0.6x I got (138.8, 83.3), but that doesn't seem right at all.
Monday, January 27, 2014 at 4:57pm

Quick math help
Can someone please check my math Hw? Thank you!! Solve each system by elimination. 1. 8x+7y=-1 -9x-7y=2 I got (-1,1) 2. 4x+3y=1 -4x-7y=-13 I got (2,-2) 3. -7x-6y=-21 -x-6y=-3 I got (3,0) 4. -2x+3y=-16 -2x-5y=-16 I got (8,0) 5. -7x+2y=13 -14x+4=26 I got (0,0) 6. 15x-8y=14 -5x+...
Monday, January 27, 2014 at 4:40pm

Science
a 67 gram chunk of ice (Heat of Fusion = 6.0 kJ/mol) in a beaker immersed in a water bath. To produce just enough heat to melt the ice, how many moles of solid NaOH (Heat of Solution = -445.1 kJ/mol) must be added to this system to just melt the ice. (Moles)
Monday, January 27, 2014 at 3:58pm

Math
Here is the problem: Christopher orders a three topping pizza for $15.25, and a 5 topping pizza for $17.75. Write and solve a system of linear equations to find the price of a plain cheese pizza (no toppings) and the cost of each topping. I used the method of elimination to ...
Monday, January 27, 2014 at 3:12pm

Business communication
can someone help me to correct it? this message address to international employee. Message intend to announce a revenue drop caused by intensive competitive pressure Howdy guys! Shouldn’t surprise anyone that we took a beating this year, given the insane pricing moves our...
Monday, January 27, 2014 at 2:19pm

Algebra
Solve the system by substitution. x + 3y = -4 2x + 2y = -8
Sunday, January 26, 2014 at 10:29pm

American History
The Panic of 1837 resulted in large measure from A. the policies of Martin Van Buren's administration B. the policies of John Quincy Adams C. complex changes in the international economic system D. the cost associated with Indian removal I choose C
Sunday, January 26, 2014 at 6:22pm

physics
You are a Middle Ages cannonball scientist attacking a castle a distance D away. Your job is to get a cannonball of mass m over the walls, which are a height H above the top of the cannonball launcher. At the instant when the cannonball leaves the launcher it will be traveling...
Sunday, January 26, 2014 at 6:05pm

American History
Under America's second party system, the whigs stood for A. a "negative liberal state." B. policies that kept government hands off business and industry C. policies that directly supported commercial enterprises D. a "liberally negligent" state I choose A
Sunday, January 26, 2014 at 4:21pm

American History
View of Human Nature - (human nature – human behavior that does not change over time) Hamilton’s view of human nature was shaped by his wartime experiences. All too often, he had seen people put their own interests and personal profit above patriotism and the needs ...
Sunday, January 26, 2014 at 12:26pm

American National Gov.
The American bureaucracy conjures up the following images except cumbersome “red tape.” civil servants who are inefficient, unresponsive, and unhelpful. officials who have amassed power and who act against the rights of citizens. a system that can act quickly in a ...
Sunday, January 26, 2014 at 10:39am

History
1. Which of the following was NOT a factor in the decline of Buddhism in India? A. Hinduism’s increasing appeal B. Buddhism’s reinforcement of the Indian caste system C. Hinduism’s increasing religious ardor D. The growing attractiveness of bhakti to the Indian ...
Saturday, January 25, 2014 at 3:09pm

EARTH SCIENCE
Cumulus and stratus clouds belong to which cloud group? A. Puffy clouds B. High clouds C. Middle clouds D. Low clouds Is it A? What is the basic cause of ocean tides? A. Gravitational force of volcanic activity B. Gravitational attraction between the Moon and the entire solar...
Saturday, January 25, 2014 at 11:12am

Trig
Use a graphical method to find a solution to the following system of equations in the interval –1 ≤ x ≤ 5: y = x2 – 4x + 2 y = x + 2 The solution set to this system of equations in the interval –1 ≤ x ≤ 5 is {} {(2, 0)} {(0, 2), (5, 7...
Friday, January 24, 2014 at 4:08pm

Advance Functions
The population of a small town is modeled by the function p(t)=20(4t+3)/2t+5, where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. The town will need its own transit system if the population exceeds 50,000. Will the town's ...
Thursday, January 23, 2014 at 5:04pm

soical studies
1.The Aztecs adapted to their environment mainly by A.using terracing and irrigation to farm. B.living a nomadic hunter-gatherer lifestyle. C.trading peacefully with neighbors.(I PICK THIS) D.settling along the coasts where they could fish. 6.What feature of the Aztec capital ...
Thursday, January 23, 2014 at 3:29pm

socialstudies help
please answer these already?? 1.The Aztecs adapted to their environment mainly by A.using terracing and irrigation to farm. B.living a nomadic hunter-gatherer lifestyle. C.trading peacefully with neighbors. D.settling along the coasts where they could fish. 6.What feature of ...
Thursday, January 23, 2014 at 3:23pm

soicalstudies(CHECK ANSWERS) 10Qs
please check them ! 1. The Aztecs adapted to their environment mainly by A.using terracing and irrigation to farm. B.living a nomadic hunter-gatherer lifestyle. C.trading peacefully with neighbors. D.settling along the coasts where they could fish.(I PICK THIS) 2. Why did ...
Thursday, January 23, 2014 at 3:04pm

social studies
which of the following statements about the state executive branch system of departments and agencies are true? A.The system is comparable in purpose to the legislative committee system in many ways. B.All state agency heads are constitutional officers. C.All agency heads are ...
Thursday, January 23, 2014 at 9:49am

Math help
Can someone check my answers on these? Thank you!! Solve each system using addition or subtraction. 1. x+y=8 x-y=4 For the solution I got (6,3) 2. x-3y=7 x+2y=2 For the solution I got (4,-1) 3. 5s+2t=6 9s+2t=22 For the solution I got (-4,13) 4. 2x+3y=13 x-3y=2 For the ...
Thursday, January 23, 2014 at 6:44am

Quick math help
Can someone check my answers on these? Thank you!! Solve each system using addition or subtraction. 1. x+y=8 x-y=4 For the solution I got (6,3) 2. x-3y=7 x+2y=2 For the solution I got (4,-1) 3. 5s+2t=6 9s+2t=22 For the solution I got (-4,13) 4. 2x+3y=13 x-3y=2 For the solution...
Wednesday, January 22, 2014 at 10:19pm

Science
Which of the following is the minimum level of structure needed to preform the function of waste removal? A. Body System B. Tissue C. Cell D. Organ I chose A for my answer, is it correct? Thanks. :)
Wednesday, January 22, 2014 at 8:28pm

social studies(CHECK 1 ANSWER)
6. what could farmers do to address the problems created by deforestation? A. return to the system where the land belongs only to the wealthy. B.bring in animals that are disappearing from the ecosystem. C.Irrigate the land more often . D.develope new ways to fertilize ...
Wednesday, January 22, 2014 at 6:57pm

science help plzzz
Multiple Choice 1. Which of Earth's spheres contains mountains, valleys, and other landscapes? (1 point) atmosphere biosphere geosphere hydrosphere 2. Which of the following are examples of destructive forces? (1 point) ice wind both ice and wind neither ice nor wind 3. ...
Wednesday, January 22, 2014 at 6:44pm

Accounting
A(n) _______ loss occurs when the reduced price is below the actual cost. A. net B. operating C. absolute D. incurred B
Wednesday, January 22, 2014 at 3:18pm

Accounting
A good purchased for $480 sells for $700. If the store's operating expenses are 30% of cost, what is the percentage markup on cost? A. 1.5% B. 10.57% C. 15.83% D. 45.83% c
Wednesday, January 22, 2014 at 3:15pm

History
2. Which of the following statements is the most accurate depiction of the Aztec Empire? A. It was a highly centralized, tightly administered monarchy developed through military conquest. B. It was a confederation of localities linked by a feudal allegiance system in which a ...
Wednesday, January 22, 2014 at 2:19pm

Science
Oh.. 1. Pharynx 2. Trachea 3. Central Nervous System 4. - 5. - 6. Cardiac Sphincter
Tuesday, January 21, 2014 at 5:18pm

Progamming
The Banking e-Teller system allows bank customers to perform ATM transactions from their cell phone. BET will allow customers to check balances, make remote capture deposits, and perform balance transfers to their checking or savings account. Balance transfers should only be ...
Tuesday, January 21, 2014 at 3:21pm

Science
Can someone please please help me? I don't have a text book, i have a online book and it isn't working. Can someone please be nice and help me? Science isn't my subject! 1. Why is Earth’s temperature just right for life? (1 point) Earth’s core is hot ...
Tuesday, January 21, 2014 at 12:12pm

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