Homework Help: Computers: Operating Systems

Recent Homework Questions About Operating Systems

English
Identify the term that best describes the words/phrases in parentheses. 1. The teacher asked her pupils to (stay) put during the screening of the documentary. linking verb action verb 2. The committee judged the logo (the most appropriate symbol) for the association’s ...
Wednesday, January 23, 2013 at 6:09am

accounting
The Bags and Luggage Company had the following account balances as of January 1: Direct Materials Inventory $ 8,700 Work in Process Inventory 76,500 Finished Goods Inventory 53,000 Manufacturing Overhead - 0 - During the month of January, all of the following occurred: 1. ...
Tuesday, January 22, 2013 at 9:19pm

Pre-Calculus
I have to use the substitution method to solve the system of equations. 4x-y=9 and 2x+3y=12 I worked this problem myself and could not find a possible solution. So I put that it is inconsistent. Is that correct? If not could you please help me?
Tuesday, January 22, 2013 at 9:09pm

Pre-Calculus
If you solve the following system of equations by substitution, which statement is true? x = z x - 2y + z = 6 2x + y - 2z = 1 A. You can substitute z for x into the second and third equations. B. You can substitute x for z into the second and third equations. C. Both methods ...
Tuesday, January 22, 2013 at 8:01pm

math
How do you write a system of linear equations in two variables? Explain this in words and by using mathematical notation in an equation.
Tuesday, January 22, 2013 at 7:13pm

Physics
3. The quantity 0.850kg of ice at -20 degrees Celsius is added to 1.100kg of water in an aluminum Calorimetry cup at 7 degrees Celsius. The mass of the Calorimetry cup is 0.250kg. Use your knowledge of specific heats and latent heats to determine the temperature for the ice/...
Tuesday, January 22, 2013 at 5:44pm

Algebra 2
Tickets to the school musical cost $3 for students and $5 for non students. Total ticket sales were $1790. The number of student tickets sold was 100 less than twice the number of non student tickets sold. Write a system of equations to represent this situation. Solve the ...
Tuesday, January 22, 2013 at 3:08pm

programming logic
The Banking e-Teller system allows bank customers to perform ATM transactions from their cell or smart phones. BET will allow customers to check balances, make remote photo capture check deposits, and perform balance transfers to their checking or savings account. It is time ...
Tuesday, January 22, 2013 at 4:11am

Physics
A 70 kg person stands on a 30 kg platform and pulls on a massless rope with a force of 400 N. The rope passes around a pulley attached to a support (roof), and then around a second pulley attached to the platform before being anchored to the support (roof). All sections of the...
Tuesday, January 22, 2013 at 1:21am

Physics
A 250 g object attached to a spring oscillates on a frictionless horizontal table with the frequency of 4 Hz and an amplitude of 20 cm. Calculate a) maximum potential energy of the system b) the displacement of the object when the potential energy is one-half of the maximum c...
Monday, January 21, 2013 at 7:28pm

Math
What are three differences between an inconsistent system and a consistent and independent system? Explain.
Monday, January 21, 2013 at 1:54pm

physics
what countries use both metric and non-metric system
Monday, January 21, 2013 at 10:21am

Anatomy and physiology
1)Why is enzymatic catalysis essential for life? Describe in detail the mechanism for enzyme mediated anabolic and catabolic reactions. What are the various modes of inhibition. 2) "every energy transfer increases the entropy of the system" .why? (hint- law of ...
Monday, January 21, 2013 at 3:09am

Physics
A pendulum and a mass spring system are both undergoing simple harmonic motion on Earth (use g = 10 N/kg). It is observed that every time the pendulum goes back and forth, the spring has gone up and down 12 times. If the pendulum has a length of 4 meters and the mass is 100 g...
Sunday, January 20, 2013 at 11:35pm

ALGEBRA 1 PLEASE HELP! I DONT UNDERSTAND
In basketball you score 2 points for a field goal and 1 point for a free throw. Suppose that you have scored at least 3 points in every game this season, and have a season high score of 15 points in one game. How many field goals and free throws could you have made in any one ...
Sunday, January 20, 2013 at 3:14pm

MATH
Find the solution/point of intersection of the following quadratic-linear system. Show steps appropriately: y+x^2=-6x-3 and x+y-1=0. Solve using both an algebraic and graphical method.
Sunday, January 20, 2013 at 10:54am

finance
1. The U.S. ﬁnancial system is composed of: (1) policy makers, (2) a monetary system, (3) ﬁnancial institutions, and (4) ﬁnancial markets. Indicate which of these components is associated with each of the following roles: a. accumulate and lend/invest ...
Saturday, January 19, 2013 at 6:03pm

Computer Harware
You have a single hard drive on your computer that contains two NTFS partitions. Your computer's operating system alerts you that the C partition is running out of room. Your E partition still has 75 gig of free space. What is the least intrusive way to alleviate this ...
Saturday, January 19, 2013 at 4:25pm

To Evelyn, Penn-Foster CHEAT
To Evelyn from Kansas: I've deleted your 20 questions from Exam: 023859RR - SENSORY ORGANS, NERVOUS SYSTEM. Please do not post it again.
Saturday, January 19, 2013 at 4:25pm

Computer Hardware
Your computer fails to boot which has Vista as the operating system. You suspect that the problem is the hard drive, but you aren't sure. What can you do to prove that the problem is indeed the hard drive? A. Install XP on the hard drive and attempt to boot. B. Boot into ...
Saturday, January 19, 2013 at 4:24pm

Math
Use the method of elimination to solve the following system of equations. You must check your answer: 1)x/2 + y/5 = 1/2 2) 3x - y = -8
Saturday, January 19, 2013 at 1:06pm

math (algerba 1) Please help!
In basketball you score 2 points for a field goal and 1 point for a free throw. Suppose that you have scored at least 3 points in every game this season, and have a season high score of 15 points in one game. How many field goals and free throws could you have made in any one ...
Friday, January 18, 2013 at 9:56pm

Computer
What is the name of the Windows Utility that you use to format drives? A. System Manager B. System Drive Manager. C. Disk Management D. Windows Drive Administrator
Friday, January 18, 2013 at 9:37pm

Computer
For which operating system is exFAT NOT an option when formatting a partition? A. Windows XP with SP3 B. Windows XP with SP2 C. Vista with SP1 D. Vista
Friday, January 18, 2013 at 9:36pm

World history; Check:P
Check please and help with #5. I have an answer but believe I'm wrong. 1.How did environmental features in Anatolia help the Hittites advance technologically? The Hattians were indigenous people who lived in Central Anatolia. As they lived in the prehistoric age before ...
Friday, January 18, 2013 at 12:04pm

World history; Check:P
City States: 1,How does an empire differ from a city-state? A city-state is an independent country whose territory consists of a city which is not administered as part of another local government. An empire is a geographically extensive group of states and peoples united and ...
Friday, January 18, 2013 at 11:42am

Physics
A 104 N car is lifted by a manually operated hydraulic lift. The area of the shaft of the lift is 80 cm2; the area of the piston that forces liquid into the system is 2 cm2. What minimum force must be exerted on this piston to lift the car? a. 104 N b. 125 N c. 250 N d. 62.5 N...
Friday, January 18, 2013 at 12:40am

Math
Translate this situation into a system of equations of the first degree in two variables and make sure you identify the variables clearly: Today, the difference in age between a father and his son is 23 years. Two years from now, the father's age will be double the age of ...
Thursday, January 17, 2013 at 4:53pm

Science
What is the current draw of a 2 kW heater when operating at 240 V?
Wednesday, January 16, 2013 at 11:28pm

Algebra
A gardener combines x fluid ounces of a 20% liquid fertilizer and 80% water mix with y fluid ounces of a 5% liquid fertilizer and 95% water mix to make 30 fluid ounces of a 10% liquid fertilizer and 90% water mix. a. Write a system of linear equations that represents the ...
Wednesday, January 16, 2013 at 10:49pm

Algebra
A baseball player's batting average is the number of hits the player has divided by the number of at-bats. At the beginning of a game, a player has a batting average of .360. During the game, the player gets 3 hits during 5 at-bats, and his batting average changes to .375...
Wednesday, January 16, 2013 at 10:45pm

Algebra
Is it possible to find a value for c so that the linear system below has exactly one solution? Explain. 5x+3y= 21 Equation 1 y= -5/3x+c Equation 2
Wednesday, January 16, 2013 at 10:41pm

Algebra
What is the x-coordinate of the solution of the system y=1/3+8 and 2x-y=2?
Wednesday, January 16, 2013 at 10:38pm

economics
Kimberly works for a well known financial company as a sales representative. She earns a small base salary but receives commission off every product she sells. Kimberly has basic living expenses in addition to a student loan. She wants to start adding to her Roth IRA and buy a...
Wednesday, January 16, 2013 at 9:29pm

math (algerba 1) Please help!
x+y=0 3x+y=-4 Sovle each system of equation by graphing. If got the answer (-3,3), but it's not there. Please explain!
Wednesday, January 16, 2013 at 9:05pm

physics
two forces 20N each are inclined at 100 degree to each other.find the single force that will; replace the given force system balance the given force system
Wednesday, January 16, 2013 at 12:22pm

Physics to be solved
a horizontal scaffold, of length 2.00 m and uniform mass 50.0 kg, is suspended from a building by two cables. The scaffold has dozens of paint cans stacked on it at various points. The total mass of the paint cans is 79.5 kg. The tension in the cable at the right is 837 N. How...
Monday, January 14, 2013 at 9:59pm

math
tell whether the system has one solution, infinitely many solutions, or no solution: y=3x-14 y-x=10
Monday, January 14, 2013 at 7:22pm

math
tell wheter the system has one solution, infinitely many solutions, or no solution: y=3x-14 y-x=10
Monday, January 14, 2013 at 7:17pm

math
tell whether the system has one solution, infine\itely many solutions, or no solution y=3x-14 y-x=10
Monday, January 14, 2013 at 7:09pm

physics
Two objects are approaching an intersection. One is a 50 kg traveling at 8 m/s from east to west and the other is a 40 kg going from south to north at 12 m/s. (a) Find the x and y components of the net momentum of this system. (b) What are the magnitude and direction of the ...
Monday, January 14, 2013 at 2:14pm

social studies
people how developed th caste system
Monday, January 14, 2013 at 6:22am

Physics
When one gallon of gasoline is burned in a car engine, 1.20 108 J of internal energy is released. Suppose that 0.99 108 J of this energy flows directly into the surroundings (engine block and exhaust system) in the form of heat. If 5.0 105 J of work is required to make the car...
Sunday, January 13, 2013 at 6:51pm

Science
What are functions of the pharynx, colon, caecum in a digestive system of a pig?
Sunday, January 13, 2013 at 5:53pm

Earth Science
1. What are one internal and one external source of energy in the Earth system? 2. Earth scientists assume that the causes of natural events of phenomena can be discovered through... 3. Science constantly creates new technology. Does this new technology always benefit society?
Sunday, January 13, 2013 at 12:12pm

physics
A block of mass 2 kg is connected to a freely hanging block of mass 4 kg by a light and inextensible string which passes over pulley at the edge of a table. The 2 kg mass is on the surface of the table assumed to be smooth. Calculate the acceleration of the system and the ...
Saturday, January 12, 2013 at 12:52pm

history
please help me with this!!!!!! 13. Which statement below would an Islamist be most likely to agree with? (Points : 3) All aspects of society—political, legal, economic, social, and cultural—should be guided by strict Muslim teaching. If people of the Muslim world ...
Friday, January 11, 2013 at 7:51pm

health
Combining two or more segments of the industry to deliver the best care, at the most cost-effective rate, in the best setting refers to a/an A. integrated delivery system. B. diagnosis-related group. C. health maintenance organization. D. preferred provider organization system
Friday, January 11, 2013 at 3:25pm

physics
A 2kg and a 4kg hang freely at opposite ends of a light inextensible string which passes over a small and light pulley fixed to a rigid support calculate the acceleration of the system
Friday, January 11, 2013 at 9:52am

Algebra 1
Okay. So I am completely lost with this... Any help would be great! 3. Solve the system using any method – graphing, substitution, or linear combination. Make sure to show your work. 2x + 5y= 8 x + 3y= 2
Thursday, January 10, 2013 at 11:04pm

Medical billing and coding
In what model of the integrated delivery system do physicians keep their own offices but share administrative and management services with other managed care organizations? A)group practice without walls B)physical hospital organization C)management service organization D)...
Thursday, January 10, 2013 at 8:54pm

algebra
solve system by substitution 9x-3x=3 3x+8y=-17
Thursday, January 10, 2013 at 8:10pm

Civics
1. Montesquieu’s system of “separation of powers” means that government is divided into three branches. people are born with rights that cannot be taken away. government may rule because the citizens consent. people have the right to life, liberty, and property...
Thursday, January 10, 2013 at 7:51pm

physics
A hard drive on a modern computer spins at 10000 rpm (revolutions per minute). If the driver is designed to start from rest and reach operating speed in 1.4 s, what is the angular acceleration of the disk?
Thursday, January 10, 2013 at 7:32pm

accounting
Income Statement Data: This year Last year Revenue $150,000 $120,000 Cost of Goods Sold $90,000 $60,000 Operating Income $10,000 $5,000 Income Tax Expense $1,800 $500 Based on a horizontal analysis of the data, which statement correctly identifies the company's performance...
Thursday, January 10, 2013 at 5:27pm

Computer
Your computer is running a lot of services and applications when you log on that you never use. What implications can this mean for your computer? A. Unused services and applications take up valuable hard drive space. B. Your computer uses more power than it needs to. C. 32 ...
Thursday, January 10, 2013 at 12:22pm

business
What is the value to the company and the supplier in developing and implementing a Third Party Supplier Relationship Management (3 P.L. S.M.S.) System? How can such a system provide greater efficiency? In 200-250 words, describe the value to the organization.
Wednesday, January 9, 2013 at 9:48pm

Please CHECK thanks
Please check and tell me what I got wrong and let me know the correct answer for the problem. Thanks. 1. Diarrhea can be caused by a change in diet and different minerals in the water. True (yes) False 2. Fusion produces less radioactivity than fission. True False (yes) 3. ...
Wednesday, January 9, 2013 at 6:31pm

fin
1. A financial institution has the following market value balance sheet structure: (LG 19-1) Assets Liabilities and Equity . Cash $ 1,000 Certificate of deposit $ 10,000 Bond 10,000 Equity 1,000 Total assets $11,000 Total liabilities and equity $ 11,000. a. The bond has a 10 ...
Wednesday, January 9, 2013 at 6:00pm

Algebra
The girl's basketball team scored 57 points and made 25 shots. Each shot was worth 2 or 3 points each. Write a linear system.
Wednesday, January 9, 2013 at 5:20pm

Somebody check this plz..and thanks.
Please check and tell me what I got wrong and let me know the correct answer for the problem. Thanks. 1. Diarrhea can be caused by a change in diet and different minerals in the water. True (yes) False 2. Fusion produces less radioactivity than fission. True False (yes) 3. ...
Wednesday, January 9, 2013 at 4:23pm

FIN 370
How are an operating budget and a cash budget linked?
Wednesday, January 9, 2013 at 11:03am

Physics
A car's brake system transfers pressure from the main cylinder to the brake shoes on all four wheels. The surface area of the main cylinder piston is 7.2 sq cm, and that of the piston in each individual brake cylinder is 1.80 sq cm. The driver exerts a 5.00 N force on the...
Wednesday, January 9, 2013 at 12:12am

math
solve each system by elimination x+y=10 x-y=2
Tuesday, January 8, 2013 at 7:58pm

algebra
solve each system by substitution 1. 6x-3y=-33 2xty=-1 2. 2x-y=7 3x-2y=10 3. 4x=8y 2x+5y=27
Tuesday, January 8, 2013 at 5:50pm

algebra 2
solve each system by substitution 1. 6x-3y=-33 2xty=-1 2. 2x-y=7 3x-2y=10 3. 4x=8y 2x+5y=27
Tuesday, January 8, 2013 at 4:52pm

algebra 2
solve each system by substitution 1. y=xt1 2x+y=7 2. x=y-2 3x-y=6 3. y=2xt3 5x-y=-3
Tuesday, January 8, 2013 at 4:47pm

Social Studies
3. Roman generals improved on Greek military tactics by employing a. the phalanx system. b. larger, more powerful divisions of troops. c. smaller, more mobile divisions of troops. d. a tolerant attitude toward deserters, which boosted morale.
Tuesday, January 8, 2013 at 2:47pm

science, physics
A block of mass 0.25 kg is connected to a spring with spring constant 35 N/m. The block is oscillating on a frictionless horizontal surface. Its speed as it passes through its equilibrium position is 1.04 m/s. What's the total energy of the system?
Tuesday, January 8, 2013 at 12:52pm

Physics,
A block of mass 0.25 kg is connected to a spring with spring constant 35 N/m. The block is oscillating on a frictionless horizontal surface. Its speed as it passes through its equilibrium position is 1.04 m/s. What's the total energy of the system?
Tuesday, January 8, 2013 at 12:25pm

Will somebody help me please?
1. Diarrhea can be caused by a change in diet and different minerals in the water. True False 2. Fusion produces less radioactivity than fission. True False 3. Wise travelers eat only cooked vegetables in underdeveloped areas. True False 4. The kilogram is the basic unit of ...
Tuesday, January 8, 2013 at 10:37am

Information Technology (2 Qs)
1) Order the following components in order of their speed starting from the fastest, and ending with the slowest: CD, Random Access Memory (RAM), Tape, Cache. 2) A computer system may have an extremely fast process, and extremely fast memory, yet the performance of the ...
Tuesday, January 8, 2013 at 6:10am

Managerial accounting
[Figure 5-1]. - The receiving department of Owen has three activities: unloading, counting goods, and inspecting. Unloading requires a forklift that is leased for $15,000 per year. The forklift is used only for unloading. The fuel for the forklift is $2,000 per year. ...
Monday, January 7, 2013 at 10:31pm

algebra
I don't understand how to do these problems, anyone that can help id appreciate it thank you. Solve each system by substitutions solving for x then for y x=5 3x+y=2 x+y= 8 4x+y=20
Monday, January 7, 2013 at 7:02pm

I need help..
1. Diarrhea can be caused by a change in diet and different minerals in the water. True False 2. Fusion produces less radioactivity than fission. True False 3. Wise travelers eat only cooked vegetables in underdeveloped areas. True False 4. The kilogram is the basic unit of ...
Monday, January 7, 2013 at 4:48pm

Please guys. Help me out.
1. Diarrhea can be caused by a change in diet and different minerals in the water. True False 2. Fusion produces less radioactivity than fission. True False 3. Wise travelers eat only cooked vegetables in underdeveloped areas. True False 4. The kilogram is the basic unit of ...
Monday, January 7, 2013 at 1:34pm

Science Somebody Help Me Please..I have a deadline
1. Diarrhea can be caused by a change in diet and different minerals in the water. True False 2. Fusion produces less radioactivity than fission. True False 3. Wise travelers eat only cooked vegetables in underdeveloped areas. True False 4. The kilogram is the basic unit of ...
Monday, January 7, 2013 at 1:23pm

Algebra
Use the substitution method to solve the linear system. 1/8p+3/4q=7 3/2p-q=4 Thanks.
Sunday, January 6, 2013 at 10:07pm

Algebra
Use substitution method to solve the linear system. Can someone please check if I did this problem right? Thanks X+y=12 X+3/2y=3/2 Y=21 x=-9
Sunday, January 6, 2013 at 9:57pm

Control Syatem
Give an example of a physical system whose transfer function model has a pole in the right.
Sunday, January 6, 2013 at 8:31pm

algebra
Use the substitution method to solve the linear system. Thanks! s= t+4 2t+s=19
Sunday, January 6, 2013 at 5:52pm

Cultural Anthropology 101
ANSWERS ARE IN() WITH *** SOME ONE PLEASE CHECK MY ANSWERS... THANKS Civilization, as defined by anthropologists, means: how “cultured” a population is. any successful society. a self-contained group with no necessity for trade. (D)***a society with advanced ...
Friday, January 4, 2013 at 9:08pm

algebra
what is the solution of the system of equations. 2x+2y+3z=-6 3x+5y+4z=3 2x+3y+4z=-10
Friday, January 4, 2013 at 12:30pm

algebra
Coulld someone take the time and check my answers please. 11) without graphing is the system independent, dependent, or inconsistent? y=-x+5 -3x-3y=-15 (my answer; dependent) 12) your club is baking vanilla and chocolate cakes for a bake sale. they need at most 19 cakes you ...
Thursday, January 3, 2013 at 11:40am

phy
Review. An object with a mass of m 5 5.10 kg is attached to the free end of a light string wrapped around a reel of radius R 5 0.250 m and mass M 5 3.00 kg. The reel is a solid disk, free to rotate in a vertical plane about the horizontal axis passing through its center as ...
Thursday, January 3, 2013 at 8:41am

7th grade math Ms. Sue please
13. A baseball bat and 8 baseballs cost $163.25. The bat costs $106.45. What is the cost c of one baseball? (1 point) 163.25 – 8c = 106.45; $33.71 8c + 106.45 = 163.25; $7.10 8c + 163.25 = 106.45; $7.10 8c – 106.45 = 163.25; $33.71 14. Mark weighs 74 pounds. Together...
Wednesday, January 2, 2013 at 9:11pm

Algebra 1
1)A farmer plans to create a rectangular garden that he will enclose with chicken wire. The garden can be no more than 30 ft wide. The farmer would like to use at most 180 ft. of chicken wire. Write a system of linear inequalities that models this situation. 2) Determine the ...
Wednesday, January 2, 2013 at 6:19pm

Physics
A mass m1 = 4.1 kg rests on a frictionless table and connected by a massless string to another mass m2 = 5.9 kg. A force of magnitude F = 32.0 N pulls m1 to the left a distance d = 0.83 m. 1) How much work is done by the force F on the two block system? 2) How much work is ...
Wednesday, January 2, 2013 at 1:27pm

Algebra
I have a few questions I need help with. They are to help review for our exam. 4) Without graphing, is each system independent, dependent, or inconsistent? -x-3y=0 x-y=4 (i believe dependent) dependent independent inconsistent 6) Which matrix represents the system of equations...
Wednesday, January 2, 2013 at 12:46pm

algebra
which matrix represents the system of equations below. -2x-7y=3 7x-6y=12 not sure how to figure this out.
Wednesday, January 2, 2013 at 11:03am

algebra
without graphing is each system independent, dependent, or consistent? -x-3y=0 x-y=4 please someone help me
Wednesday, January 2, 2013 at 10:57am

physics
consider system shown in fig. 1. the coeffecient of kinetic friction between block a (m=10 kg) and the table is 0.20. calculate the weight of the hanging block required if this block is to descend at constant speed once it has been set into motion.
Wednesday, January 2, 2013 at 6:42am

physics
A horizontal spring mass system is set up to keep time so that it goes from one side to the other in 6 seconds. The mass used in this system is 0.69 kg. The distance from one side to the other is 2.4 m. What spring constant should be used if it is to oscillate correctly? k = N...
Monday, December 31, 2012 at 6:29pm

physics
A pendulum and a mass spring system are both undergoing simple harmonic motion on Earth (use g = 10 N/kg). It is observed that every time the pendulum goes back and forth, the spring has gone up and down 14 times. If the pendulum has a length of 5 meters and the mass is 100 g...
Monday, December 31, 2012 at 6:29pm

Physics
A mass is suspended from a vertical spring and the system is allowed to come to rest. When the mass is now pulled down a distance of 76mm and released, the time taken for 25 oscillations is 23s. Find the displacement of the mass from its rest position 0.6s after being released...
Sunday, December 30, 2012 at 4:36pm

basic economics
The U.S. capitalist system relies on a theoretical model, the circular flow model, with three basic elements interacting together to ensure that our needs and wants are provided. The three sectors are (a)consumer, (b)business, and (c)government. The circular flow model shows ...
Sunday, December 30, 2012 at 1:09pm

calculus-can someone please help me with this ques
I have two questions if someone can PLEASE help. 1.solve the equation in the real number system. x^4+11x^3+24x^2-23x+35=0 **Please show work** 2.Use the remainder theorem to find the remainder. When f(x)is divided by x-3. Then use the factor theorem to determine whether x-3 is...
Sunday, December 30, 2012 at 5:12am

american government
Which of the following is characteristic of a capitalist economic system? a. free enterprise b.self-reliance c.private property d.individualism e.all of the answers are correct
Sunday, December 30, 2012 at 2:34am

maths
10. A company involved in the assembly and distribution of printers in concerned with two types – laser and inkjet. Assembly of each laser printer takes 2 hours, while each inkjet printer takes 1 hour to assemble, and the staff can provide a total of 40 person-hours of ...
Friday, December 28, 2012 at 1:42am

calculus
Solve the equation in the real number system X^4+11x^3+24x^2-23x+35=0 Please show work
Thursday, December 27, 2012 at 7:15pm

statistics
Suppose that 50 identical batteries are being tested. After 8 hours of continuous use, assume that a given battery is still operating with a probability of .70 and has failed with a probability of .30. What is the probability that between 25 and 30 batteries (inclusive) will ...
Wednesday, December 26, 2012 at 9:14pm

physics
when an accident happens in the sea due to collision of ships, there is a huge amount of oil spill in the sea .how does this affect of eco system?what spices of the marine life are affected by it and how?
Monday, December 24, 2012 at 3:57am

Math
Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of &...
Sunday, December 23, 2012 at 10:00pm

Need help with ~Social Stusies!
This is a practice so it's rather extensive but it's important i get the points for it so can u please check it thx! 1. To pinpoint the absolute location of a place, geographers use (1 point) nearby landmarks. the Atlantic and Pacific oceans. the North and South poles...
Saturday, December 22, 2012 at 7:20pm

algebra URGENT!
Solve the system using elimination. 2x – 2y = –8 x + 2y = –1 And this one: Solve the system using elimination. 3x – y = 28 3x + y = 14 Pleease help me :(
Friday, December 21, 2012 at 11:59pm

I NEED HELP!.. Algebra
Find a solution to the following system of equations. -5x + y = -5 -4x + 2y = 2
Friday, December 21, 2012 at 11:50pm

Health
Tell me about everything on male and female reproductive system you know.
Friday, December 21, 2012 at 9:41pm

algebra
The sum of two numbers is 82. Their difference is 24. Choose the system of equations that describes this situation. Solve by elimination to find the two numbers.
Friday, December 21, 2012 at 8:38pm

algebra
Solve the system of equations using substitution. y = x + 6 y = –2x – 3
Friday, December 21, 2012 at 7:51pm

algebra
Solve the system of equations using substitution. y = 2x – 10 y = 4x – 8
Friday, December 21, 2012 at 6:31pm

algebra
Solve the system of equations using substitution. y = 2x + 3 y = 3x + 1
Friday, December 21, 2012 at 6:20pm

algebra
What is the solution of the system of equations? y = 3x + 7 y = x – 9
Friday, December 21, 2012 at 5:54pm

algebra
In a basketball game, a regular basket was worth 2 points and a long-distance basket was worth 3 points. If there were 45 baskets in a game and 96 points total, how many regular baskets r and long-distance baskets l were made? Show the correct system of equations.
Friday, December 21, 2012 at 5:27pm

algebra
Does the system of equations have no solution, one solution, or infinitely many solutions? y = 2x – 3 y = –x + 3
Friday, December 21, 2012 at 4:57pm

algebra
Does the system of equations have no solution, one solution, or infinitely many solutions? y = x + 4 y – 4 = x
Friday, December 21, 2012 at 4:48pm

algebra
Which graph represents the following system of equations? y = 3x + 3 y = –x – 3
Friday, December 21, 2012 at 4:43pm

Science
For lunch, you have a turkey sandwich on wheat bread with mayonnaise and lettuce. Describe how each component of this meal would be broken down in the digestive system. Thanks.
Friday, December 21, 2012 at 7:57am

U.S History
which action is an example of the system of checks and balances? A. Texas requires at least 180 school days per year. B. An individuals pays both state and federal income tax. C. The House of Representatives votes to expel on of its members. D. The senate approves the ...
Thursday, December 20, 2012 at 8:55pm

SOCIALS 9 URGENT
answer in proper paragraph of 10-12 sentences What was the system of government called that was in place before the revolution? describe who were involved. Give some examples of what their occupations were. which types of people were for this type of government and which were ...
Thursday, December 20, 2012 at 8:11pm

Physics
In the drawing, the weight of the block on the table is 405. N and that of the hanging block is 191. N. Ignore friction, the mass of the rope, and the mass of the pulley. Find the acceleration of the two block system in m/s2.
Wednesday, December 19, 2012 at 4:48pm

math
Gemma has to complete her chores for the week. She must finish 10 hours of chores to receive her allowance. She can work on landscaping for 2 to 8 hours. She can also do laundry for 4 to 6 hours. Determine the graph that correctly represents this system of inequalities. PLEASE...
Wednesday, December 19, 2012 at 2:44pm

Please..
what would happen to the respiratory system if it didn't have the nose, pharynx, larynx, trachea, bronchi, lungs, and mucus? I know what would happen to the human body but what would happen specifically to the respiratory system? Thank you!
Tuesday, December 18, 2012 at 7:38pm

Biology
what would happen to the respiratory system if it didnt have the nose, pharynx, larynx, trachea, bronchi, lungs, and mucus? I know what would happen to the human body but what would happen specifically to the respiratory system? Thank you.
Tuesday, December 18, 2012 at 6:59pm

Coordinates in the real world
I really need a real-world application in which the coordinate grid system is used. it doesn't have to be real long just a few sentences. thanks :)
Tuesday, December 18, 2012 at 4:04pm

physics
Consider a room air conditioner using a Carnot cycle at maximum theoretical efficiency and operating between the temperatures of 19.7°C (indoors) and 28.7°C (outdoors). For each 1.00 J of heat flowing out of the room into the air conditioner a) How much heat flows out ...
Tuesday, December 18, 2012 at 3:11pm

Linear Algebra
Consider the system x-2y=k-1 4x+(1-k^2)y=8 For what values of k does the system have a. unique solution? b. infinitely many solutions? c. no solution?
Tuesday, December 18, 2012 at 2:42pm

Algebra 1
The local zoo is filling two water tanks for the elephant exhibit. One water tank contains 34 gal of water and is filled at a constant rate of 4 gal/h. The second water tank contains 30 gal of water and is filled at a constant rate of 2 gal/h. Explain. Let x = the number of ...
Tuesday, December 18, 2012 at 1:52pm

Geometry
how is the coordinate system used in navigation, archaeology, and space? please help!!! links and answers alike would be great! thanks :)
Tuesday, December 18, 2012 at 1:37pm

English Please Help
from "When Greek Meets Greek" 1. What can you conclude from the wording of the following text? “One morning Ramkilawansingh (after this, we calling this man Ram) was making a study of the noticeboards along Westbourne Grove what does advertise rooms to let.”...
Tuesday, December 18, 2012 at 12:12am

FRENCH
Look at the map of the Paris subway system map.Choose one of these destinations from Bastille. Tell your teacher how you would navigate the Métro to get to: Pigalle Le Musée d'Orsay L'Opéra I don't even know where to start :(
Monday, December 17, 2012 at 8:56pm

algebra
solve each system by elimination 9x-6y=-30 x-3y=6
Monday, December 17, 2012 at 8:43pm

Algebra
Solve with a system of equations. Amanda pays 10.00 per month plus 100.00 Brita pays 20.00 per month
Monday, December 17, 2012 at 8:42pm

math
Bernie put in a garden in her back yard. The garden has a perimeter of 199 feet. She wants to know the total surface area of the garden and all she knows is the perimeter and that the width is 20% or (1/5) of the length. (Remember 20% and the fraction 1/5 is the same decimal ...
Monday, December 17, 2012 at 7:41pm

math quick help
Bernie put in a garden in her back yard. The garden has a perimeter of 195 feet. She wants to know the total surface area of the garden and all she knows is the perimeter and that the width is 20% or (1/5) of the length. (Remember 20% and the fraction 1/5 is the same decimal ...
Monday, December 17, 2012 at 7:11pm

Math
Sorry I posed one before this and didn't finish the problem. 42. How many solutions does the system have? 3x + 12y = 20 y = –1/4x + 5/3 A.)one B.)two C.)infinite D.)none I'm not sure what the answer is, I am bad at these.
Monday, December 17, 2012 at 1:52pm

Math
42. How many solutions does the system have? 3x + 12y = 20 y = –x + A.)one B.)two C.)infinite D.)none I'm not sure what the answer is, I am bad at these.
Monday, December 17, 2012 at 1:49pm

chemistry
Answer the following questions by referring to the Cu-Al phase diagram shown below. (a) What is the lowest temperature at which a liquid can be found in a system of any composition of Cu-Al? correct (b) A common alloy composition used in airplanes is 4 at. % Cu - 96 at. % Al. ...
Monday, December 17, 2012 at 6:04am

chemistry
(a) The phase diagram of the binary system, neodymium-scandium (Nd-Sc) is given below. There are two polymorphs in the solid state: α which is hexagonal close packed (HCP) and β which is body-centered cubic (BCC). Identify all phases present at points 1, 2, and 3. ...
Monday, December 17, 2012 at 6:02am

chemistry
Consider the gold-platinum system which has a value of delta w of -4250 J/mole; (a) Calculate the enthalpy of mixing for a solution of 10% platinum and 90% gold. Express your answer in units of kJ/mole.
Monday, December 17, 2012 at 5:55am

algebra system of equations
solve X^2 + Y^2 =70 Y= 2X + 5
Sunday, December 16, 2012 at 6:19pm

chemistry
The figure above shows how the energy of a system varies as a chemical reaction proceeds. Match the numbers features labeled on the figure above to their corresponding statements below: energy state of the reactants:
Sunday, December 16, 2012 at 6:46am

Math
One student studied for 8 years in college and her tuition bills are recorded. Years. One semester tuition 1. 4680 2. 4960 3. 5510 4. 6060 5. 6845 6. 7600 7. 8435 8. 9250 Construct the scatter plot for the data with the scales.choose 3 points,find a quadratic equation in ...
Saturday, December 15, 2012 at 5:41pm

Chemistry
Answer the following questions by referring to the Cu-Al phase diagram shown below. (a) What is the lowest temperature at which a liquid can be found in a system of any composition of Cu-Al ? (b) A common alloy composition used in airplanes is 4 at. % Cu - 96 at. % Al. For ...
Saturday, December 15, 2012 at 5:13pm

physics
is2A wedge of mass M fitted with a spring of stiftness k is kept on a smoth hrizontal surface. A rod of mass m is kept on the wedge as shown in the figure. System is in equilibrium. Assuming that all the surfaces are smooth, the potential energy stored in the spring: a) ...
Saturday, December 15, 2012 at 2:14pm

PLEASE HELP EARTH SCIENCE EMERGENCY!!!!
Describe two complexities about Earth's climate system that results in changes happening faster than expected.
Saturday, December 15, 2012 at 11:53am

Chemistry
(a) The figure above shows how the energy of a system varies as a chemical reaction proceeds. Match the numbers features labeled on the figure above to their corresponding statements below: energy state of the reactants: 1/2/3/4/5 activation energy of the reaction: 1/2/3/4/5 ...
Friday, December 14, 2012 at 1:25am

math please help fast
How many solutions are there to the following system of equations? 2x – y = 2 –x + 5y = 3 A. 0 B. 1 C. 2 D. infinitely many
Thursday, December 13, 2012 at 4:15pm

math helpp!!!
Bernie put in a garden in her back yard. The garden has a perimeter of 265 feet. She wants to know the total surface area of the garden and all she knows is the perimeter and that the width is 20% or (1/5) of the length. (Remember 20% and the fraction 1/5 is the same decimal ...
Thursday, December 13, 2012 at 3:58pm

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