Tuesday

December 1, 2015
**Law**

Describe the role of the court in Australia's legal system.
*Saturday, April 4, 2015 by Help Needed. *

**Math - Help Me Please**

Stereo Inc. sells a stereo system for $300 down and monthly payments of $40 for the next 2 years. If the interest rate is 3.25% per month, find: a) The cost of the stereo. b) The total amount of interest paid. I am having trouble figuring out the correct layout.
*Friday, April 3, 2015 by Kris*

**math- please help me**

Stereo Inc. sells a stereo system for $300 down and monthly payments of $40 for the next 2 years. If the interest rate is 3.25% per month, find: a) The cost of the stereo. b) The total amount of interest paid. I am having trouble figuring out the correct layout.
*Friday, April 3, 2015 by Kris*

**math**

how do you write a system of equation that is linear ? can this two equation work? 2x – 3y = –2 4x + y = 24
*Friday, April 3, 2015 by TD*

**Math - Help Please**

Stereo Inc. sells a stereo system for $300 down and monthly payments of $40 for the next 2 years. If the interest rate is 3.25% per month, find: a) The cost of the stereo. b) The total amount of interest paid. I am having trouble figuring out the correct layout.
*Friday, April 3, 2015 by Kris*

**Algebra**

Need help solving the system of inequalities and equations graphically for this problem. Please help! 6y=9(x-6) 3(2y+5x)=-6
*Friday, April 3, 2015 by George*

**math**

Question:write a system of equation that is linear. can this two equation work? 2x – 3y = –2 4x + y = 24
*Thursday, April 2, 2015 by TD*

**Math - hw check**

The admission fee for student is $8 and the admission fee for Adult is $15. In one hour, 12 adults and students enter the museum and a Total of $131 in admission was paid. Write a linear system to model this problem and solve this problem graphically. Check you answer by ...
*Thursday, April 2, 2015 by Ray*

**physics**

A hydraulic cylinder has to overcome a force of 12,600 pounds on the extend stroke and 9,375 pounds on the return stroke. The maximum system pressure available is 2200 PSIG. What is the smallest diameter cylinder required to overcome the load and what is the maximum diameter ...
*Wednesday, April 1, 2015 by emma*

**fluids**

What are the three benefits of a fluid system as the prime mover in a system? Explain each benefit.
*Wednesday, April 1, 2015 by emma*

**Physics- Solenoid Questions**

1) A technician has been given wire that can safely carry 5 A. She has been instructed to construct a solenoid that will have a magnetic field of 0.06 T at its center. After completing some tests of the wire, the technician finds that the tightest safe winding possible with ...
*Wednesday, April 1, 2015 by Meli*

**Science **

1. A weatherman reports, "the storm waves are about 2 meters high and about 35 meters apart. "what properties of waves is the reporter describing? Frequency and wavelength Wavelength and wave speed***** Amplitude and wavelength Amplitude and frequency 2. Sound proof ...
*Wednesday, April 1, 2015 by Hailee*

**MATH**

I'm sure what if this is the right answer that the question is looking for. since my eng. not that good i have hard time understanding. Please help me. Question: write a situation that can be modeled by the following linear system. Explain what each variable means, then ...
*Tuesday, March 31, 2015 by may*

**Chemistry DrBob please answer**

A reaction at 3.24 atm consumes 5.10 L of a gas adiabatically (q = 0). Calculate the change in internal energy of the system (in kJ). I know that I have to use w=-p deltaV but how do i find the Final and Initial volumes?
*Tuesday, March 31, 2015 by JUNDY*

**ss**

what was the main goal of suffrage leaders such as elizabeth cady stanton, susan b. anthony, and anita pollitzer? a. create a national temperance movement b. improve the prison system c. get women the right to vote d. ensure equal pay for equal work i am 99.9% sure its a ...
*Tuesday, March 31, 2015 by basketball&batman*

**Chemistry**

A reaction at 3.24 atm consumes 5.10 L of a gas adiabatically (q = 0). Calculate the change in internal energy of the system (in kJ). I know that I have to use w=-p deltaV but how do i find the Final and Initial volumes?
*Tuesday, March 31, 2015 by JUNDY*

**math - linear equation**

How do I write a system of equations that is linear and graph? Thanks
*Tuesday, March 31, 2015 by hy*

**calculus**

The operating cost, C, in dollars per hour, for an airplane cruising at a height of h metres and an air speed of 200km/h is given by: C = 4000 + h/15 + 15000000/h for the domain 1000 ≤ h ≤ 20000. Determine the height at which the operating cost is at a minimum, and...
*Tuesday, March 31, 2015 by sierra*

**Chemistry**

A reaction at 3.24 atm consumes 5.10 L of a gas adiabatically (q = 0). Calculate the change in internal energy of the system (in kJ).
*Tuesday, March 31, 2015 by JUNDY*

**Chemistry**

A reaction at 2.43 atm produces 20.0 L of a gas and evolves 75.3 kJ of heat (exothermic). Calculate the change in internal energy of the system (in kJ).
*Tuesday, March 31, 2015 by JUNDY*

**health**

which body system would you expect to provide the most protection from colds and the flu PLEASE HELP ME!!!!!!!!!!
*Tuesday, March 31, 2015 by confused?*

**SOCIAL STDIES HELP!!!!!**

1. What was the New South philosophy? (1 point) a philosophy that the southern economy should become more industrialized the idea that African Americans should own more businesses*** the notion that traditional farming techniques should be maintained a concept that allowed ...
*Monday, March 30, 2015 by XenaGonzalez*

**child day care**

. In the childcare field, the main purpose of a Quality Rating and Improvement System (QRIS) is to A. improve and standardize the quality of care in all facilities in the state. B. lower the cost of childcare. C. make it easier for parents to find childcare. D. make childcare ...
*Monday, March 30, 2015 by Tinkk*

**child day care**

Most licensing agencies offer an orientation meeting for applicants who want to obtain licensing for a child care facility or a family day care home. This meeting is designed to help the applicant to A. determine where to open his or her program. B. locate financial backers ...
*Monday, March 30, 2015 by Tinkk*

**chemistry**

Calculate the pH of the buffer system after the addition of 0.1 mol of gaseous HCl of the solution. Assume that the volume of the solution does not change when the HCl is added.
*Monday, March 30, 2015 by zayde*

**Physics**

So, "a uniform steel rod of length 1.20 meters and mass 6.40 kg has attached to each end a small ball of mass 1.06 kg. The rod is constrained to rotate in a horizontal plane about a vertical axis through its midpoint." There's more to the question, but the only ...
*Monday, March 30, 2015 by Nora*

**phy 111**

1 An ideal gas undergoes a cycle of processes as shown in the p-V diagram gases . Which statement correctly describes the situation? Click here to see exhibit The internal energy of the gas increases over one complete cycle Over the entire cycle, work is done by the gas. The ...
*Monday, March 30, 2015 by PEACE*

**Algebra 1**

Find the solution to the system y=x^2-2x-2 My answer is (-1,1)(7,33)
*Monday, March 30, 2015 by Steve*

**Precalculus **

Find an equation of the circular orbit of a satellite 500 miles above the surface of earth. Place the origin of the rectangular coordinate system at the center of Earth and assume that the radius of Eatch is 4000 miles.
*Sunday, March 29, 2015 by Anonymous*

**Pschology 202**

1. David is somewhat afraid of flying. When he is required to travel on business, he prefers to take a train or drive if the distance is short enough that he can arrive on schedule. However, if the distance is long and driving does not make sense, he will fly because he does ...
*Sunday, March 29, 2015 by Sharnii23*

**INCIDENT COMMAND SYSTEMS**

During past hurricanes, medical rescue teams took instructions from any number of sources, resulting in confusion and poor coordination of efforts. During Hurricane Andrew, the Metro-Dade Fire Rescue team changed its protocol. How? A. Managers adjusted their relationships to ...
*Sunday, March 29, 2015 by INCIDENT COMMAND SYSTEMS*

**physics**

1) What average power is required for a runner with a mass of 85 kg to reach a speed of 8 m/s from a stationary start during a time of 2 s? 2) A 1000 kg car travels east at 30 m/s and collides with a 3400 kg truck travelling south at 20 m/s. After the collision the two ...
*Sunday, March 29, 2015 by k*

**maths**

three resistors are connected the resistances are R2 = 2 R3= 3 R1=r r is not specified Question: Derive the total resistance of the system as an expression containing r
*Sunday, March 29, 2015 by dev*

**health part2**

The sole activity of the respiratory system is breathing. True False The exchange of gases between the blood and tissue cells is external respiration. True False Air flows in the process of pulmonary ventilation because of pressure differences between the atmosphere and the ...
*Saturday, March 28, 2015 by april*

**health part2**

The sole activity of the respiratory system is breathing. True False The exchange of gases between the blood and tissue cells is external respiration. True False Air flows in the process of pulmonary ventilation because of pressure differences between the atmosphere and the ...
*Saturday, March 28, 2015 by april*

**Science Check Please**

Which of these is true? The nervous system doesn't react as quickly as the endocrine system. The endocrine system doesn't react as quickly as the nervous system. (My Answer) The nervous system and the endocrine system have similar reaction times. The endocrine system ...
*Saturday, March 28, 2015 by YOLO*

**computers2**

If you're required to install memory in pairs for the system to work, what type of memory module are you most likely using? A. SIMM B. SIPP c. DIPP
*Friday, March 27, 2015 by m*

**computers**

How is the SIMM an improvement on the SIPPs and DIPs that preceded it? a. SIMMs are larger and thus hold more memory. b. Every SIMM houses a row of pins on each side. c. The SIMM is soldered to the system board.
*Friday, March 27, 2015 by m*

**computers**

Two technicians are discussing the interface between system memory and the motherboard. Technician A says data errors caused by speed mismatches are handled by making the memory run a parity check for every bit accessed. Technician B says those speed mismatch errors are ...
*Friday, March 27, 2015 by m*

**chemistry**

who created the mcilvaine buffer system?
*Friday, March 27, 2015 by LK*

**Algebra**

Solve the system by substitution. -5x + y = -3 3x - 8y = 24 I'm not sure which equation to choose as I begin to find the y value. Some assistance would be greatly appreciated! Thank you!
*Thursday, March 26, 2015 by Kylie*

**please help Chemistry**

Zn(OH)2 was saturated in a solution of sodium hydroxide. The following equilibra exist under these conditions Zn(OH)2 -> Zn2+ +2OH- Ksp Zn2+ +OH- -> Zn(OH)+ K1 Zn(OH)- + OH- -> Zn(OH)2 K2 Zn(OH)2 + OH- -> Zn(OH)3- K3 Zn(OH)3- +OH- -> Zn(OH)42- K4 a) Sum of which...
*Thursday, March 26, 2015 by george*

**chemistry**

Zn(OH)2 was saturated in a solution of sodium hydroxide. The following equilibra exist under these conditions Zn(OH)2 -> Zn2+ +2OH- Ksp Zn2+ +OH- -> Zn(OH)+ K1 Zn(OH)- + OH- -> Zn(OH)2 K2 Zn(OH)2 + OH- -> Zn(OH)3- K3 Zn(OH)3- +OH- -> Zn(OH)42- K4 a) Sum of which...
*Thursday, March 26, 2015 by george*

**System ?**

Your teacher is giving you a test worth 100 points containing 40 questions there are 2-point and 3 point questions on the test how many each type are on the test ?
*Wednesday, March 25, 2015 by Emely *

**math**

suppose that x liters of 36% acid solution are mixed with y liters of a 50% solution to obtain 100 L of a 37% solution. One equation is a system for solving this problem is x+y=100. which of the following is the other solution?
*Wednesday, March 25, 2015 by Anonymous*

**Science The Human Body PLEASE HELP!!!!!!!!!!!**

the human endocrine system is made up of which of the following structures? (1 point) vessels receptors* glands chambers 2. Which of the following best describes the function of the endocrine system? (1 point) It secretes chemical messengers that travel through the blood to ...
*Wednesday, March 25, 2015 by Justin Bieber*

**Health**

What is the first activity of the digestive system? A. Digestion B. Ingestion C. Movement D. Absorption i pick D.
*Wednesday, March 25, 2015 by Dalton Help Ms.Sue, Writeacher, Reed!!*

**Algebra (Math)**

Without graphing, name the ordered pair where the graphs of the two linear equations intersect. (Below is the system.) { x = 2 y = -3 Without graphing, name the ordered pair where the graphs of the two linear equationd intersect. (Below is the system.) { y = 2 x + 2y = 10 For ...
*Wednesday, March 25, 2015 by Kylie*

**Math Check**

Hi! I posted this question yesterday and it was answered but I forgot to add something else to the directions. Directions: Write the system of equations sequentially so that it will correspond to the final matrix. Matrix: [-10 2 | 48] [-5 -6/4 |-9] My answer: 10x+2y=48 -5x+-6/...
*Wednesday, March 25, 2015 by Yuri*

**Chemistry**

Zn(OH)2 was saturated in a solution of sodium hydroxide. The following equilibra exist under these conditions Zn(OH)2 -> Zn2+ +2OH- Ksp Zn2+ +OH- -> Zn(OH)+ K1 Zn(OH)- + OH- -> Zn(OH)2 K2 Zn(OH)2 + OH- -> Zn(OH)3- K3 Zn(OH)3- +OH- -> Zn(OH)42- K4 a) Sum of which...
*Tuesday, March 24, 2015 by Troy*

**geometry**

the following system of equations bounds a region. If the region is rotated about the line x=0, what is the shape of the resulting solid figure? y=-2x+4 X=0 Y=0 Y=2
*Tuesday, March 24, 2015 by al*

**us history**

Which is the best definition of the word "naturalization"? A) the transition people make in becoming vegetarians B) the process of jury selection used in the court system C) the process of becoming a citizen of a country D) the ceremony performed to welcome a new ...
*Tuesday, March 24, 2015 by Oscar*

**Analytical Chemistry**

For a triprotic acid H2PO4. Ka1=7.11e-3, Ka2=6.32e-8 and Ka3=7.1e-13. 50mL each of 0.05F CaCl2 and 0.05F phosphoric acid were mixed. Ksp CaHPO4=2.6e-7. a) Would CaHPO4 precipitate when phosphoric acid and calcium chloride were mixed together? b) List all species (ions, ...
*Tuesday, March 24, 2015 by Mia*

**Math Check**

Hi! Can someone check this for me? My teacher wants me to write the system of equations that will correspond to the final matrix. I have the matrix already, but I need help with the writing the system stuff. Thanks! Matrix: [-10 2 | 48] [-5 -6/4 |-9] My answer: 10x+2y=48 -5x+-...
*Tuesday, March 24, 2015 by Yuri*

**mathhhhhhhhhhhhhhhhhhh**

For questions 5–7, find the solution to the system of equations by using either graphing or substitution 5. y = 6 – x and y = x – 2 (1 point) (2, 4)*** (–4, 2) (4, 2) no solutions 6. y = 2x – 1 and y = x + 3 (1 point) (4, 7) (7, 4) (–7, –4...
*Tuesday, March 24, 2015 by Linda*

**History**

1. How did new England's textile industry affect both children and women? a) It allowed them to earn a living wage until the age of 25. b) It gave them opportunities not available on family farms. c) It permitted them to complete their schooling. d) It provided long-term ...
*Tuesday, March 24, 2015 by emma*

**PHYSICS**

A certain resistance thermometer at triple point of water is 152.0 ohms. What is the temperature of the system in degrees celsius when the resistance of the thermometer is 230.51ohms.
*Tuesday, March 24, 2015 by LOVELINE*

**Social Studies 8th thank you**

1. The Bourbon Democrats would have been likely to support which of the following? (Choose all that apply.) (3 points) lower taxes*** less government spending growth of industry*** African American rights*** 2. Unhappy farmers formed what organization? (1 point) Farmers’ ...
*Tuesday, March 24, 2015 by Linda*

**Co-operate Finance**

As the investment analyst for King breweries you are required to analyze the automated loom system in the Castle larger production line. The old system was purchased 5 years ago for $200,000. It falls in the accelerated cost recovery 5 year class and it has 5 years of ...
*Tuesday, March 24, 2015 by Patricia*

**History **

What was the goal of the minimum foundation program for education? A. It integrated whites and blacks int he same school system. B.It improved the quality of white-only education. C. It raised taxes. D. It put more money into black schools. @Writeacher please don't help me...
*Tuesday, March 24, 2015 by Paul *

**chemistry **

During which stroke of a four-stroke internal combustion engine is work done to the system of gases? A. Exhaust stroke B. Intake stroke C. Compression stroke D. Power stroke
*Monday, March 23, 2015 by Cortney*

**Science Check Please Dr.Bob222**

I am sorry would..Hopefully this would make it easier 1. Your ____ is your first line of defense against pathogens. brain heart large intestine skin * 2. Blood vessels help regulate your body's temperature. When it's cold, your blood vessels ____ to decrease blood flow...
*Monday, March 23, 2015 by YOLO*

**Ethics and Tech**

The Internet and __________ are powerful and flexible tools that support a wide variety of social interactions. A. the telephone system B. email C. social web sites D. instant messaging is it B
*Monday, March 23, 2015 by Amy*

**History**

Secession and War Quiz 1) The admission of Missouri as a slave state was controversial in the Senate because... :The Senate was pro-slavery. :It would create sectionalism. :It would upset the balance.*** :The Senate was anti-slavery. 2) The main topic of the Lincoln-Douglas ...
*Monday, March 23, 2015 by TheLOUDEST_0430*

**Science Check Please**

1. Your ____ is your first line of defense against pathogens. brain heart large intestine skin 2. Blood vessels help regulate your body's temperature. When it's cold, your blood vessels ____ to decrease blood flow and retain heat. boil constrict cool down expand 3. The...
*Monday, March 23, 2015 by YOLO*

**Physics**

Calculate the work done on the system when 1.00 mol of gas held behind a piston expands irriversibly from a volume of 10.0dm^3 against an external pressure of 1.00 bar?
*Monday, March 23, 2015 by Andrew*

**mathematical physics**

Determine the scale factors for an orthogonal coordinate system (s, t, v) whose coordinates are related to the Cartesian by the following equations: x = 2st, y = s^2-t^2, z = v Also write down an expression for the square of the arc element.
*Monday, March 23, 2015 by gourav *

**physics**

In a farm yard, a 20.0-kg light is suspended from a light beam on the end of a tall pole. The beam is supported by an arm that attaches to the beam at the suspension point of the light, as shown in the diagram below. The arm makes an angle of 50.0 with the pole. Ignore...
*Sunday, March 22, 2015 by Trex*

**Science Help**

Which of the following carries blood to every part of the body? (1 point) blood vessels the heart lymph nodes the ventricles 7. Nutrients and oxygen diffuse into body cells from ______. (1 point) arteries the aorta capillaries veins 8. The leading cause of death in humans is ...
*Sunday, March 22, 2015 by YOLO*

**Science Please**

Which of the following carries blood to every part of the body? (1 point) blood vessels the heart lymph nodes the ventricles 7. Nutrients and oxygen diffuse into body cells from ______. (1 point) arteries the aorta capillaries veins 8. The leading cause of death in humans is ...
*Sunday, March 22, 2015 by SmartyPants*

**Science Please**

Which of the following carries blood to every part of the body? (1 point) blood vessels the heart lymph nodes the ventricles 7. Nutrients and oxygen diffuse into body cells from ______. (1 point) arteries the aorta capillaries veins 8. The leading cause of death in humans is ...
*Sunday, March 22, 2015 by SmartyPants*

**MEDICAL CODING**

Use the CPT manual to assign the appropriate procedure and modifier codes to the following exercise. The Patient had a catheter inserted into the arterial system from the femoral artery and then into the left ventricle for left ventriculography. Report only the physician ...
*Sunday, March 22, 2015 by MEHUL*

**mathematical physics**

Determine the scale factors for an orthogonal coordinate system (s,t,v) whose coordinates are related to the Cartesian by the following equations: x = 2st, y = s^2-t^2, z = v.
*Sunday, March 22, 2015 by gourav *

**PHI445**

Who is generally given credit for introducing fundamental human rights into the American political system? A) Thomas Hobbes B) John Locke C) Thomas Jefferson D) Alain Locke
*Saturday, March 21, 2015 by Danelle*

**Math**

Hi! My teacher wanted me to sketch the graph of solution set of each system. For the first question, she wants me to use the slope intercept form and the second question using a table of values, but, I'm a little lost. Can someone help? Thanks! 1.) 3x + 2y < 6 x > 0 ...
*Saturday, March 21, 2015 by Heather*

**science**

The two insulated beakers contain equal amounts of identical liquids. The temperature of Beaker A is 80°C. The temperature of Beaker B is 50°C. A copper rod connects the beakers. The system is then left alone for several hours. What would you expect to find when the ...
*Saturday, March 21, 2015 by Isabel*

**science**

The two insulated beakers contain equal amounts of identical liquids. The temperature of Beaker A is 80°C. The temperature of Beaker B is 50°C. A copper rod connects the beakers. The system is then left alone for several hours. What would you expect to find when the ...
*Saturday, March 21, 2015 by Isabel*

**science**

Two insulated beakers contain different amounts of identical liquids. Beaker A contains twice as much liquid as Beaker B. The temperature of Beaker A is 80°C. The temperature of Beaker B is 40°C. An aluminum rod connects the beakers, and the system is left alone for ...
*Saturday, March 21, 2015 by Isabel*

**science**

The two insulated beakers contain equal amounts of identical liquids. The temperature of Beaker A is 80°C. The temperature of Beaker B is 50°C. A copper rod connects the beakers. The system is then left alone for several hours. What would you expect to find when the ...
*Saturday, March 21, 2015 by Isabel*

**Math**

Hi! My teacher wanted me to sketch the graph of solution set of each system. For the first question, she wants me to use the slope intercept form and the second question using a table of values, but, I'm a little lost. Can someone help? Thanks! 1.) 3x + 2y < 6 x > 0 ...
*Saturday, March 21, 2015 by Heather*

**mathematical physics**

Determine the scale factors for an orthogonal coordinate system ( s, t, v ) whose coordinates are related to the cartesion by following equations: x = 2st:, y = s^2-t^2:, z = v Also write down an expression for the square of the arc element.
*Saturday, March 21, 2015 by gourav *

**social studies **

1.__________ introduced Europeans to Muslim inventions, such as the astrolabe that helped sailors navigate the seas. a)the Crusades,*** b)the Reconquista c)the Vikings d)the Magana Carta 3.king granted land to lords who in turn granted land to knights under the system called a...
*Saturday, March 21, 2015 by #school*

**social studies**

1.__________ introduced Europeans to Muslim inventions, such as the astrolabe that helped sailors navigate the seas. a)the Crusades, b)the Reconquista c)the Vikings d)the Magana Carta *** 2.In Athens the system of government became a direct democracy, in which the people ...
*Saturday, March 21, 2015 by need help real quick*

**ap physics**

A mass of 1.50 kg is at (−2.55 m, 0) and a 2.04-kg mass at (4.00 m, 4.00 m). Find the center of mass of the system. m, m
*Thursday, March 19, 2015 by amar*

**Math check please**

1. Solve the system of equations y=2x^2-3 y=3x-1 a)no solution b)(-1/2,5),(2,-5/2) c)(-1/2,-5/2),(2,5)**** d)(1/2,5/2),(2,5) 2. How many real number solutions are there to the equation 0=-3x^2+x-4? a)0 ***** b)1 c)2 d)3 3.solve the equation by completing the square. if ...
*Thursday, March 19, 2015 by Kendra*

**S.S**

Which question would best help you write a report regarding the changes to the political system during Jackson's presidency? A. How did Andrew Jackson react to the results of the election of 1824? B. When did Andrew Jackson decide to run for president? C. Did Andrew ...
*Thursday, March 19, 2015 by Anonymous *

**SOCIAL STDIES HELP!sss**

1. Which of the following contributed to the rise of the Populist Party? (1 point) a sense of discontent and inequality felt by farmers and laborers an agreement with Republican politics a need to keep government exactly as it was a desire to see Democrats be voted out of ...
*Thursday, March 19, 2015 by XenaGonzalez*

**Math**

Solve the following system of equations. Then, write the final answer in (x, y, z) form. -12x+y-x=-20 -2x-4y+2z=10 x+2y+2z=25
*Thursday, March 19, 2015 by Giselle*

**business math**

Stereo Inc. sells a stereo system for $500 down and monthly payments of $60 for the next 4 years. If the interest rate is 1.75% per month, find: a) The cost of the stereo. b) The total amount of interest paid.
*Wednesday, March 18, 2015 by Alex*

**Math**

Hi! I need help with this question. Thanks! Directions: Try to find the number of solutions for the following system of equations then determine if it is Dependent, Inconsistent or Consistent. -3x-2y=6 x=-2-2/3y
*Wednesday, March 18, 2015 by Kevin*

**Math**

Solve these system of equations. Then, write the final answer in (x,y) form. 1.) x-y=7 3x+2y=6 2.) 2x-4y=3 -3x+5y=1
*Wednesday, March 18, 2015 by Hope*

**Art**

Chinese artists often express their philosophies using calligraphy. Which is the best definition of philosophy? A. a complex idea B. a religion C. a way of practicing creativity D. a system of guiding principles I think its C. Please answer as soon as possible.
*Wednesday, March 18, 2015 by Student*

**journalism **

Which of the following is the lead? "On Wednesday, the Department of Justice released the utterly devastating results of its investigation of the Ferguson Police Department." "When people say “Black Lives Matter,” they’re not referring only to the...
*Wednesday, March 18, 2015 by jimm*

**Physics**

Two systems are formed from a converging lens and a diverging lens, as shown in parts a and b of the drawing. (The point labeled "Fconverging" is the focal point of the converging lens.) An object is placed inside the focal point of lens 1 at a distance of 7.70 cm to...
*Wednesday, March 18, 2015 by Damien O' Connell*

**chemistry **

1. Ideal gas particles: A. have no mutual attraction and no individual volume. B. have no mass or volume. C. have no odor and no color. D. have no density and do not form bonds. Is it A? 2. Why does the density of gas in a hot air balloon decrease as the gas is heated? A. The ...
*Wednesday, March 18, 2015 by Cortney*

**Vectors**

Can you please explain how to answer this? What is a solution for the following system? x-4y+z=2 and -x+4y-2z=8 a) x=4s+12, y=s, z=-10 b) x=s+4, y=3s, z=-4 c) x=2s+5, y=s, z=-12 d) x=s, y=4s, z=-12
*Tuesday, March 17, 2015 by Sara*

**Math**

Directions: Solve the following system of inequalities. 1.) 3x + 2y < 6 x > 0 y > 0 2.) 2x^2 + y ≥ 2 x ≤ 2 y ≤ 1
*Tuesday, March 17, 2015 by Gloria*

**physics**

Two ice skaters hold hands and rotate, making one revolution in 2.4 s. Their masses are 60 kg and 70 kg, and they are separated by 1.5 m. Find the angular momentum of the system about their center of mass.
*Monday, March 16, 2015 by Anonymous*

**Physical Chemistry**

If a 30g piece of ice at -5C is immersed in 125mL of water at 25C in an insulated container... A. Determine the final temperature and final composition of the system B. Determine the entropy changes of the ice and the water and the overall entropy change of this process.
*Monday, March 16, 2015 by Jo*

**calculus**

a 50 m long chain hangs vertically from a cylinder attached to a winch. assume there is no friction in the system and that the chain has a density of 5 kg/m. how much work is required to wind the entire chain onto the cylinder using the winch
*Monday, March 16, 2015 by anto*