Saturday

August 30, 2014

August 30, 2014

**Recent Homework Questions About Operating Systems**

Post a New Question | Current Questions

**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**

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**

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*

**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 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*

**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*

**chemistry**

A mixture containing 50grams of carbon and 75 grams of oxygen is sealed in a flask. The total mass of the system is 225 grams. The flask is heated to cause the carbon and oxygen to react. The sealed flask is massed. What is the mass of the sealed flask? A) 125 grams B) 150 ...
*Monday, January 20, 2014 at 8:29pm*

**ms. sue**

A modern person is defined as a someone who advocates or practices a departure from traditional styles or values. Theodore Roosevelt was a modern president by starting political policies that are reflective of our society. His policies included regulating big businesses, ...
*Monday, January 20, 2014 at 6:34pm*

**Science**

Which of the following is the minimum level of structure needed to perform the function of waste removal? A. body system B. tissue C. cell D. organ C Which two systems work with the muscular system to allow the body to move? A. digestive and urinary B. skeletal and nervous C. ...
*Monday, January 20, 2014 at 2:58pm*

**Math**

1. Marissa is a photographer. She sells framed photographs for $100 each and greeting cards for $5 each. The materials for each framed photograph cost $30, and the materials for each greeting card cost $2. Marissa can sell up to 8 framed photographs and 40 greeting cards each ...
*Monday, January 20, 2014 at 10:56am*

**Physics**

Suppose that a binary star system consists of two stars of equal mass. They are observed to be separated by 380 million kilometers and take 9.0 Earth years to orbit about a point midway between them. What is the mass of each? ------------------------------- I've worked ...
*Sunday, January 19, 2014 at 7:35pm*

**physics 2**

if 120 g of hot water at 85 degree celsius is poured into an insulated cup containing 200 g of ice at 0 degree celsius. how many grams of liquid will there be when the system reaches thermal equilibrium?
*Sunday, January 19, 2014 at 6:32pm*

**social studies help???**

ive been stuck on these 2 questions for a while can you answer them ?? Farmers in the north face which problem that those in the southern region do not ? A. infrequent rain limits plant growth B. the worst pollution in the country is found here. C. they often lose equipment in...
*Saturday, January 18, 2014 at 6:01pm*

**Physics Please check my answers**

1. An amusement park ride has a diameter of 16 meters and revolves at 15 rpm (revolutions per minute). How fast is a rider moving if she sits at the outermost part of the ride? A. 29.4 m/s B. 1.07 m/s <<<< C. 225 m/s D. 12.56 m/s E. 9.8 m/s 2. A police officer ...
*Friday, January 17, 2014 at 8:55pm*

**social studies(CHECK ANSWERS PLEASE)**

please check these answers please 1. Which region of Mexico are sinkhole most likely to be found? A. Mexico plateau B.Baja California C.sonoran desert D.Yucatan peninsula(I PICK THIS) 2.what effect does altitude have on Mexico's climate? A. as altitude decreases, the ...
*Friday, January 17, 2014 at 4:56pm*

**social studies**

please can someone answer these there destroying me !!! 1. Which region of Mexico are sinkhole most likely to be found? A. Mexico plateau B.Baja California C.sonoran desert D.Yucatan peninsula 2.what effect does altitude have on Mexico's climate? A. as altitude decreases, ...
*Friday, January 17, 2014 at 2:48pm*

**Algebra II**

Explain, in complete sentences, which method you would use to solve the following system of equations and why you chose that method. Provide the solution to the system. x - 3y + 2z = -12 x + 2y + 3z = 6 2x - 3y - z = -2
*Friday, January 17, 2014 at 2:20pm*

**social studies**

I provided my answers and if they are wrong can you correct them?i know nothing about this subject..thanks 1. Which region of Mexico are sinkhole most likely to be found? A. Mexico plateau B.Baja California C.sonoran desert(I PICK THIS) D.Yucatan peninsula 2.what effect does ...
*Friday, January 17, 2014 at 1:41pm*

**Algebra II**

If you were to use the substitution method to solve the following system, choose the new system of equations that would result if x was isolated in the third equation. 2x - 3y + z = -4 2x - 2y + z = -1 x - 2y + 3z = -6 5x + 7y = 6 y - 4 = -1 -y - 1 = -4 -5x + 4y = -3 y - 5z = ...
*Friday, January 17, 2014 at 1:19pm*

**History8**

The Supreme Court ruled that the ____________________ was unconstitutional. a.Tariff system b. American System c. slavery d. all of the above d?
*Thursday, January 16, 2014 at 9:05pm*

**Physics**

Three objects with masses m1= 36.5 kg m2= 19.2 kg m3= 12.5 kg Are hanging from massless ropes that run over a frictionless pulleys. If the system is released from rest, what is the magnitude of the acceleration in m/s^2 of mass m1? ___________________ O O O I I I I I I I I I I...
*Thursday, January 16, 2014 at 7:20pm*

**Physics**

Three objects with masses m1= 36.5 kg m2= 19.2 kg m3= 12.5 kg Are hanging from massless ropes that run over a frictionless pulleys. If the system is released from rest, what is the magnitude of the acceleration in m/s^2 of mass m1? ___________________ O O O I I I I I I I I I I...
*Thursday, January 16, 2014 at 7:20pm*

**Physics**

An elevator motor provides 45.0 kW of power while lifting a 2000 kg elevator 35 m. If the elevator contains six passengers of the same mass and it takes 20.0 s to accomplish this task, determine the mass of each passenger. Assume the system is 83 % efficient.
*Thursday, January 16, 2014 at 7:11pm*

**Physics**

A track is mounted on a large wheel that is free to turn with negligible friction about a vertical axis. A toy train of mass m = 0.140 is placed on the track and, with the system initially at rest, the train's electrical power is turned on. The train reaches a steady speed...
*Thursday, January 16, 2014 at 6:48pm*

**American History**

Regarding Mexico's Porfirio Díaz, which statement is true? A. He enacted laws that favored wealthy elites. B. He overthrew the Mexican Revolution of 1910. C. He freed many peasant farmers from debt peonage. D. He reformed the hacienda system.
*Wednesday, January 15, 2014 at 9:02pm*

**Business-Need help!**

1. Regarding Mexico's Porfirio Díaz, which statement is true? A. He enacted laws that favored wealthy elites. B. He overthrew the Mexican Revolution of 1910. C. He freed many peasant farmers from debt peonage. D. He reformed the hacienda system. 2. In the 1840s, the...
*Wednesday, January 15, 2014 at 7:47pm*

**world civilizations**

1. All of the following were factors favoring British industrialization, except A. increased agricultural production. B. rising urbanization and higher wages. C. a decline in domestic demand for manufactured goods. D. immediate or canal access to ocean ports. 2. Under the ...
*Wednesday, January 15, 2014 at 6:48pm*

**Math**

Need help with solve the system of equations x^3-y^2=7.75. And 3xy+y=3.5
*Wednesday, January 15, 2014 at 5:34pm*

**Algebra 1 **

"Graph each system of linear inequalities. Give two ordered pairs that are solutions and two that are not solutions." How do I find these solutions in order to "give two ordered pairs that are solutions and two that are not solutions."?
*Wednesday, January 15, 2014 at 4:27pm*

**Physics**

A bullet whose mass is 0.0015kg leaves a 5kg leaves a 5kg rifle at a muzzle velocity of 800 m/s. It strikes a 7kg block of wood and becomes embedded in it. After the bullet hits the rock, what is the speed of the bullet/ block system?
*Wednesday, January 15, 2014 at 2:16am*

**Algebra 1 (Reiny)**

I desperately need guidance. Not only do I not know how to graph these systems of linear inequalities, but I also do not understand the concept whatsoever. I have watched several videos regarding the subject, but I didn't retain anything from them. Please, I desperately ...
*Tuesday, January 14, 2014 at 10:21pm*

**Physics**

If a 100-g mass was placed at the 25-cm mark, and a 20-g mass at the 10-cm mark, where should a 500-g mass be placed to balance the system?
*Tuesday, January 14, 2014 at 10:08pm*

**Algebra**

How many solutions does this system of equations have? y = 4x + 3 and 2y - 8x = 3 One, two, infinitely many, or no solutions? My answer is no solutions.
*Tuesday, January 14, 2014 at 6:13pm*

**Math for Steve**

How many solutions does the system of equations have? y=4x+4 y=4x-3 y=-6x-2 y+2=-6x
*Monday, January 13, 2014 at 8:30pm*

**Algebra**

The town is organizing a Fourth of July parade. There will be two sizes of floats in the parade (30 ft and 15 ft). A space of 10 ft will be left after each float. A. The parade must be at least 150 ft long, but less than 200 ft long. What combinations of large and small floats...
*Monday, January 13, 2014 at 7:54pm*

**Math help plz..**

Joe wants to fence a rectangular pen for his goats. The length of the pen should be at least 60 ft, and the distance around should be no more than 260 ft. Which system of inequalities and graph represent the possible dimensions of the pen? (1 point) Terry has completed 15 ...
*Monday, January 13, 2014 at 7:50pm*

**Math- Systems of equations and inequalities**

Joe wants to fence a rectangular pen for his goats. The length of the pen should be at least 60 ft, and the distance around should be no more than 260 ft. Which system of inequalities and graph represent the possible dimensions of the pen? (1 point) Terry has completed 15 ...
*Monday, January 13, 2014 at 7:28pm*

**Computers**

You have administrative rights to your computer running windows 7. You cannot find some of the operating system files on your system volume. What to do to make the appear? A. Uncheck hide protected operating system Giles in folder options. B. Uncheck hide protected operating ...
*Monday, January 13, 2014 at 7:27pm*

**Math**

How many solutions does the system of equations have? 3x=-12y+15 and x + 4y=5 Y=6x+2 and 3y-18x=12 x-2y=6 and 3x – 6y =18 y-5x=-6 and 3y-15x=-12 Ok, so I’m having problems with these, so if Steve or Reiny could help with these problems and show the work for them that...
*Monday, January 13, 2014 at 6:51pm*

**Intro to Computers**

You are setting up a desktop computer for an AutoCad specialist who needs a minimum of 125 GB of RAM. Which operating system below would be best-suited for his needs? A. Windows 8 Home 64-Bit Edition B. Windows XP 32-Bit Professional Edition C. Windows Millennium 64-Bit ...
*Monday, January 13, 2014 at 4:19pm*

**Math**

An aircraft is to carry a load of relief food supplies from a depot which holds 2 kinds of food package. Each carton of food package A weighs 15 kilograms, 40 liters in volume and contains 250 ration units. Each carton of food package B weighs 25 kilograms, 20 liters in volume...
*Monday, January 13, 2014 at 2:36am*

**Fundamentals of finance**

"Genatron wants to estimate what will happen to its income before interest and taxes if its net sales change from the 2012 level of $1,500,000. Refer to Genatron’s 2012 income statement below, where the income before interest and taxes is $247,000 (EBT of $190,000 ...
*Sunday, January 12, 2014 at 9:41pm*

**US history**

What is the purpose or reason for the Factory system and when was it invented????
*Sunday, January 12, 2014 at 3:57pm*

**Fundamentals of finance**

"Genatron wants to estimate what will happen to its income before interest and taxes if its net sales change from the 2012 level of $1,500,000. Refer to Genatron’s 2012 income statement below, where the income before interest and taxes is $247,000 (EBT of $190,000 ...
*Sunday, January 12, 2014 at 2:03pm*

**algebra**

How to solve the system of equations below using elimination? b = 2a+1 10a+b=5b+2
*Sunday, January 12, 2014 at 1:15am*

Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | **7** | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Post a New Question | Current Questions