Friday

August 22, 2014

August 22, 2014

**Recent Homework Questions About Operating Systems**

Post a New Question | Current Questions

**physics**

A string going over a massless frictionless pulley connects two blocks of masses 4.4 kg and 11 kg. As shown on the picture below, the 4.4 kg block lies on a 23◦ incline; the coefficient of kinetic friction between the block and the incline is μ = 0.29. The 11 kg ...
*Thursday, March 6, 2014 at 1:24pm*

**physics**

what is the physics behind the process of administering the following 1. measurement of blood pressure using sphygmomanometer 2.giving injections 3.administering intravenous infusion 4.giving oxygen in the ward and operating theater 5. administering blood transfusion 6.sucking...
*Wednesday, March 5, 2014 at 11:04pm*

**Math- NOT CALCULUS**

The hourly profit ($P) obtained from operating a fleet of n taxis is given by P=-2n^2+84n-45 What is the profit if 20 taxis are on the road? What is the maximum hourly profit? What number of taxis gives the max hourly profit? How much money is lost per hour if no taxis are on ...
*Wednesday, March 5, 2014 at 8:58pm*

**Physics**

If m1 = 4.72kg, what mass m2 is required to balance the system? (two masses are connected by a rope. m1 is sitting on an incline and m2 is hanging from a pulley)
*Wednesday, March 5, 2014 at 8:53pm*

**Math **

The hourly profit ($P) obtained from operating a fleet of n taxis is given by P=-2n^2+84n-45 What is the profit if 20 taxis are on the road? What is the maximum hourly profit? What number of taxis gives the max hourly profit? How much money is lost per hour if no taxis are on ...
*Wednesday, March 5, 2014 at 8:10pm*

**computers**

What overriding philosophy of the Windows 8 operating system makes it unique compared to earlier Microsoft operating systems? A. It is a universal operating system for all types of devices. B. It can host both 32- and 64-bit applications. C. Up to 192 users can have a separate...
*Wednesday, March 5, 2014 at 1:37pm*

**Physics**

Two children pull a third child on a snow saucer sled exerting forces F1 and F2 as shown from above in Figure 4.36. Find the acceleration of the 49.00-kg sled and child system. Note that the direction of the frictional force is unspecified; it will be in the opposite direction...
*Tuesday, March 4, 2014 at 11:52pm*

**physics**

A roller-coaster car of mass 1.80 103 kg is initially at the top of a rise at point circle a. It then moves 40.8 m at an angle of 50.0° below the horizontal to a lower point circle b. (a) Find both the potential energy of the system when the car is at points circle a and ...
*Tuesday, March 4, 2014 at 11:26pm*

**algebra**

Mary has a total of $5000 invested in two accounts. One account pays 5% and the other 8%. Her interest in the first year was $331. Write and solve a system of equations to find out how much she has invested in both accounts.
*Tuesday, March 4, 2014 at 11:14pm*

**algebra**

The sum of two numbers is 30 and their difference is 2. Find the two numbers by writing and solving a system of equations.
*Tuesday, March 4, 2014 at 10:54pm*

**physics**

A bullet with mass 4.95 g is fired horizontally into a 1.994 kg block attached to a horizontal spring. The spring has a constant 5.58 10^2 N/m and reaches a maximum compression of 6.27 cm. (a) Find the initial speed of the bullet-block system. (b) Find the speed of the bullet.
*Tuesday, March 4, 2014 at 10:06pm*

**History-help**

I need help on this! Please help me! Thank you :) you're a huge blessing! What is driving the economic changes in china and why? What economic system do you believe china is? Why? What are the goals and dreams of the Chinese compared Americans? What are the costs that ...
*Tuesday, March 4, 2014 at 6:50pm*

**Economics**

A clinic has $1 million in revenues and $950,000 in costs. What is its operating margin? My answer is 5% However the second question is if the clinic invested $400,000. What is the return on investment and is it adequate. Not sure how I calculate that. Would I take the 5% of $...
*Tuesday, March 4, 2014 at 2:12pm*

**please check(Social studies)**

im not gonna get frustrated with this anymore because it wont help me but i read some info online and thought these new answers where related to the topic 16.Which aspect of Aztec culture benefitted the Spanish when they were conquering the Aztecs? A.The Aztecs made enemies of...
*Tuesday, March 4, 2014 at 12:19pm*

**Social studies***help*****

HI im Dalia and i just want my answers to be checked for the subject of Social studies.thanks again. 6.Which aspect of Aztec culture benefitted the Spanish when they were conquering the Aztecs? A.The Aztecs made enemies of the surrounding tribes who were more than happy to ...
*Tuesday, March 4, 2014 at 11:44am*

**Astronomy**

Imagine you are on some far away planetary system looking for planets in the galactic neighborhood and you spot our sun in your sky. In degrees, what is the maximum the orbit can be tilted from 90 in order to see a transiting eclipse (assume the longitude angle is 0)?
*Tuesday, March 4, 2014 at 8:18am*

**algebra**

Rachel has 15 coins with a value of $2.85. If the coins are either dimes or quarters, how many of each coin does she have? Write and solve using a system of equations
*Monday, March 3, 2014 at 11:23pm*

**physics**

Find the center of mass of a system composed of three spherical objects with masses of 3.0kg , 1.6kg , and 4.3kg and centers located at (-6.7m , 0), (1.0m , 0), and (2.7m , 0), respectively. Express your answers using two significant figures separated by a comma. xCM, yCM
*Monday, March 3, 2014 at 10:49pm*

**Alegbra**

Mary has a total of $5000 invested in two accounts. One account pays 5% and the other 8%. Her interest in the first year was $331. Write and solve a system of equations to find out how much she has invested in both accounts.
*Monday, March 3, 2014 at 4:14pm*

**physics**

a truck of mass 8500Kg is pulling a trailer of mass 27 000Kg on a level road.The coefficient of kinetic friction is 0,20.A horizontal force of 75 000N moves the truck forward.question:calculate the magnitude of the acceleration of the system
*Monday, March 3, 2014 at 10:40am*

**Alegbra**

Solve the following systems of equations using the addition (elimination) method. What type of system is it? Name the solution if there is one. 13. x+y=6 x-y=4
*Sunday, March 2, 2014 at 8:46pm*

**Alegbra**

The length of a pool is 3 feet more than twice its width. If the perimeter of the pool is 72 feet, find the dimensions of the pool by writing and solving a system of equations.
*Sunday, March 2, 2014 at 8:44pm*

**Alegbra**

Mary has a total of $5000 invested in two accounts. One account pays 5% and the other 8%. Her interest in the first year was $331. Write and solve a system of equations to find out how much she has invested in both accounts.
*Sunday, March 2, 2014 at 8:43pm*

**business**

i need help with this essay can someone help its for paralegal studies introduction to computers. Prepare and submit a proposal to Bill that gives your suggested solution to his business plan. Provide Bill with the details of what he needs to purchase in order to have what he ...
*Sunday, March 2, 2014 at 4:30pm*

**education **

prepare and submit a proposal to bill that gives your suggested solution to his business plan. provide bill with the details of what he needs to purchase in order to have what he needs to conduct his business using today's technology, make sure you include the following ...
*Sunday, March 2, 2014 at 3:50pm*

**math**

Determine the number of solutions for the following system of equations 2x+5y=7 10y=-4x+14 1)Exactly one solution 2)No solutions 3)infinite solutions 4)Exactly 2 solutions I solved the equations and got y=7-2X/5 y=-4X+14/10 and I said infinite solutions. Is that correct?
*Sunday, March 2, 2014 at 2:41pm*

**mat 116**

identify the solution(s)of the system of equations, if any -2x-4y=1 and 12y=-6x-3
*Sunday, March 2, 2014 at 9:04am*

**mat116**

consider the following system of equations y=3x-7 andy-3x=5 what can you conclude about the system of equations
*Sunday, March 2, 2014 at 9:03am*

**structural design**

ASHI standards require a home inspector to identify and describe the type of structure and materials of construction before A. testing systems scientifically. B. evaluating each system. C. establishing value. D. reporting remaining usefulness.
*Saturday, March 1, 2014 at 6:49pm*

**philosophy (john dewey)**

The expected outcome or pattern of Developed Standards of "Rules of Conduct", "Moral Training" and "School Organizations" served to meet the national demands. What is the problem with this being upheld in our educational system?
*Saturday, March 1, 2014 at 6:45pm*

**chemistry**

Hello, a few questions: Thanks so much! 1. The heat capacities of titanium and water are 0.522 J g-1 K-1 and 4.184 J g-1 K-1, respectively. What is the final temperature of the titanium-water mixture if a 175.0-g sample of titanium, initially at 90.0oC, is added to 50.0 g of ...
*Saturday, March 1, 2014 at 3:51pm*

**Algebra 1**

2x-4y=32 2x-8y=48 Find the solution of this system of equations.
*Friday, February 28, 2014 at 11:49pm*

**science**

4. a scientist exams a sample of an object from the solar system . there is evidence that the object included ice . the sample most likely comes from a(n) ( 1point ) a . Asteroid b. comet c dwarf planet d meteroroid
*Friday, February 28, 2014 at 9:34pm*

**Biology**

Which of the following is correctly matched with its tissue system? cortex/dermal tissue system cuticle/vascular tissue system phloem/dermal tissue system stele/vascular tissue system>>>> my choosen answer
*Friday, February 28, 2014 at 9:00pm*

**thermodinamics**

2. A sample of an ideal gas underwent an expansion against a constant external pressure of 1.0 bar from 1.0 m3, 20.0 bar, and 273 K to 100.0 m3, 1.0 bar, and 273 K. What is the work done by the system on the surroundings
*Friday, February 28, 2014 at 5:22pm*

**Mechanics**

A light inextensible string, which passes over a fixed smooth peg A, is fastened at one end to a small ring R of mass 0.1kg and at the other end to a particle P of mass 0.3kg. The ring is threaded on a fixed rough vertical wire and the system rests in equilibrium with the part...
*Friday, February 28, 2014 at 2:59pm*

**hardware**

Difference between disk operating system and windows operating system?
*Friday, February 28, 2014 at 5:31am*

**operating system**

What is the difference between MsDOS and Ms WINDOWS?
*Friday, February 28, 2014 at 5:25am*

**Physics**

1. Two blocks on a frictionless horizontal surface are connected by a light string. where m1 = 6.21 kg and m2 = 19.5 kg. A force of 48.4 N 6.21kg --T-- 19.5kg ----->48.4 N The acceleration of gravity is 9.8 m/s^2. Find the acceleration of the system. Answer in units of m/s^...
*Thursday, February 27, 2014 at 2:51am*

**Alegbra**

. Rachel has 15 coins with a value of $2.85. If the coins are either dimes or quarters, how many of each coin does she have? Write and solve using a system of equations.
*Thursday, February 27, 2014 at 1:32am*

**Alegbra**

A desk and a chair cost $200 as a set. If the desk costs four times more than the chair, how much does each one cost. Write and solve using a system of equations.
*Thursday, February 27, 2014 at 1:32am*

**Alegbra**

The length of a pool is 3 feet more than twice its width. If the perimeter of the pool is 72 feet, find the dimensions of the pool by writing and solving a system of equations.
*Thursday, February 27, 2014 at 1:31am*

**Alegbra**

Mary has a total of $5000 invested in two accounts. One account pays 5% and the other 8%. Her interest in the first year was $331. Write and solve a system of equations to find out how much she has invested in both accounts.
*Thursday, February 27, 2014 at 1:30am*

**Alegbra**

The sum of two numbers is 30 and their difference is 2. Find the two numbers by writing and solving a system of equations.
*Thursday, February 27, 2014 at 1:28am*

**algebra**

A desk and a chair cost $200 as a set. If the desk costs four times more than the chair, how much does each one cost. Write and solve using a system of equations.
*Wednesday, February 26, 2014 at 9:18pm*

**Math**

Why animals and plants are found on earth but are not on other planets of the solar system? Please ,,help me
*Wednesday, February 26, 2014 at 12:11pm*

**chemistry**

at an equilibrium mixture of PCl5, PCl3, and Cl2 has partial pressures of 217.0 Torr, 13.2 Torr and 13.2 Torr respectively. a quantity of Cl2 is injected into the mixture, and the total pressure jumps to 263.0 Torr (at the moment of mixing). the system then re-equilibrates. ...
*Wednesday, February 26, 2014 at 5:14am*

**social studies**

In 1846, the population of San Francisco, California, was only 200. By 1852, the city's population was 36,000. Which contributed the most to San Francisco's population change? (5 points) The Gold Rush The Mexican-American War The Monroe Doctrine The Trail of Tears 2. ...
*Tuesday, February 25, 2014 at 7:04pm*

**Science help ms sue.**

Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements about the solar system&#...
*Tuesday, February 25, 2014 at 6:14pm*

**social studies(updated answers)**

8.Which region of Mexico is best for growing crops? A.Baja California B.Southern Mexico Plateau (I PICK THIS) C.Yucatán D.Northwestern Mexico 9.Like the United States, the government of Mexico is A.breaking away from a one-party system. B.an established dictatorship. C....
*Tuesday, February 25, 2014 at 1:29pm*

**science**

which of the following body systems does NOT rely on the autonomic nervous system to stimulate involuntary events? A. Skeletal System B. Digestive System C. Circulatory System D. Respiratory System
*Tuesday, February 25, 2014 at 1:22pm*

**social studies(updated answers)**

mrs.sue i never got to put my updated answers from when you said they were wrong so here they are please check them. 5.Mexico City was built by the A.Olmecs, when they began to grow maize. B.Maya, after they conquered the Valley of Mexico. C.Spanish, on the ruins of the Aztec ...
*Tuesday, February 25, 2014 at 1:13pm*

**physics **

Two spheres are mounted on identical horizontal springs and rest on a frictionless table, as in the drawing. When the spheres are uncharged, the spacing between them is 0.05 m, and the springs are unstrained. When each sphere has a charge of +1.6 £gC, the spacing doubles...
*Tuesday, February 25, 2014 at 12:07pm*

**chemistry**

at an equilibrium mixture of PCl5, PCl3, and Cl2 has partial pressures of 217.0 Torr, 13.2 Torr and 13.2 Torr respectively. a quantity of Cl2 is injected into the mixture, and the total pressure jumps to 263.0 Torr (at the moment of mixing). the system then re-equilibrates. ...
*Tuesday, February 25, 2014 at 6:42am*

**social studies **

Describe the apportionment system for state legislative districts.
*Monday, February 24, 2014 at 9:26am*

**social studies**

In 1846, the population of San Francisco, California, was only 200. By 1852, the city's population was 36,000. Which contributed the most to San Francisco's population change? (5 points) The Gold Rush The Mexican-American War The Monroe Doctrine The Trail ...
*Sunday, February 23, 2014 at 6:14pm*

**U.S History - Pls check my answer :)**

Document A: It is impossible that the allied powers should extend their political system to any portion of either continent without endangering our peace and happiness; nor can anyone believe that our southern brethren, if left to themselves, would adopt it of their own accord...
*Sunday, February 23, 2014 at 5:14pm*

**college math **

Acrosonic manufactures a model G loudspeaker system in Plants I and II. The output at Plant I is at most 800/month, and the output at Plant II is at most 600/month. Model G loudspeaker systems are also shipped to the three warehouses—A, B, and C—whose minimum monthly...
*Sunday, February 23, 2014 at 2:37pm*

**Chemistry - check answers**

Can someone please check my answers and make sure they're correct? A) How much heat would it take to raise the temperature of 46.0 g of water from 90.0 to 100.0 C? Answer using correct sig figs, sign, and units. My answer: +1.92x10^3 J B) How many joules are released when ...
*Sunday, February 23, 2014 at 10:53am*

**Physics**

A 1.34‒kg ball is attached to a rigid vertical rod by means of two massless strings each 1.70 m long. The strings are attached to the rod at points 1.70 m apart. The system is rotating about the axis of the rod, both strings being taut and forming an equilateral triangle...
*Sunday, February 23, 2014 at 2:42am*

**college math HELP!!!!!**

Acrosonic manufactures a model G loudspeaker system in Plants I and II. The output at Plant I is at most 800/month, and the output at Plant II is at most 600/month. Model G loudspeaker systems are also shipped to the three warehouses—A, B, and C—whose minimum monthly...
*Saturday, February 22, 2014 at 7:11pm*

**Algebra**

Solve the following system of equations by the elimination method. 1/3x+1/4y=7 1/3x-3/4y=-9 a)The solution is___?(Type an ordered pair. Use integers or fractions for any numbers in the expression) b)Infinitely many solutions c)No solution
*Saturday, February 22, 2014 at 3:46pm*

**Physics**

Consider a car is heading down a 5.5° slope (one that makes an angle of 5.5° with the horizontal) under the following road conditions. You may assume that the weight of the car is evenly distributed on all four tires and that the coefficient of static friction is ...
*Friday, February 21, 2014 at 8:42pm*

**Physics**

A string going over a massless frictionless pulley connects two blocks of masses 6.4 kg and 13 kg. As shown on the picture below, the 6.4 kg block lies on a 32◦ incline; the coefficient of kinetic friction between the block and the incline is μ= 0.3. The 13 kg block...
*Friday, February 21, 2014 at 8:36pm*

**Physics**

1. Two blocks on a frictionless horizontal surface are connected by a light string. The acceleration of gravity is 9.8 m/s^2. Find the acceleration of the system. Answer in units of m/s^2. 2. What is the tension in the string between the blocks? Answer in units of N. 3. If ...
*Friday, February 21, 2014 at 8:09pm*

**history**

What was the role of civil service examinations in Ming China? does anyone have any idea what the answer could be. I was looking on the internet and found this- --The civil service examination system, a an effective cultural, social, political, and educational construction ...
*Friday, February 21, 2014 at 6:49pm*

**physics**

Three blocks on a frictionless horizontal surface are in contact with each other. A force F is applied to block A and the blocks start to slide to the right of their initial position. Determine the acceleration of the system, if m_A = 12 kg, m_B = 38 kg, m_C = 4700 g, and F = ...
*Friday, February 21, 2014 at 1:12pm*

**Chemistry**

For the reaction given, the value of the equilibrium of the constant at 400 K is 7.0. Br2(g)+ Cl2(g)=2BrCl(g) Does the: Reaction proceed to the left? Reaction proceed to the right? Partial pressure represent a system in an equation?
*Friday, February 21, 2014 at 10:44am*

**Science**

An electric eel can generate a voltage of 600V across its body. The eel does this via a system of up to 6000 “electroplaques” inside its body. What is the average strength of the electric ﬁeld in V/m inside the body of a 10cm wide eel?
*Friday, February 21, 2014 at 5:50am*

**math **

the school bands sells carnations on Valentine's day for $2 each. They buy the carnations from a florist for $0.50 each , plus $16 delivery charge . how will i put this in a system of equation .
*Friday, February 21, 2014 at 12:22am*

**Language Arts-check answer-**

The article is at the bottom for this question: Skim the article “Cruise Control” to find the name of the bumper sticker service found in Arlington, Texas. a) 1-866-2TELLMOM b) 800-4-MYTEEN ******** c) Big Mother d) Dad’s Eyes Anne Rekerdres likes to call "...
*Thursday, February 20, 2014 at 11:00pm*

**algebra**

The equation y-100x=2000 can be used to represent monthly salary of a salary of a salesman ,y when he sells x computer system what is the salesman monthly salary if he sells no computer. Answers are 20, 100, 2000, 2100 thank you
*Thursday, February 20, 2014 at 10:13pm*

**Statistics**

Astronomers treat the number of stars in a given volume of space as a Poisson random variable. The density in the Milky Way Galaxy in the vicinity of our solar system is one star per 16 cubic light years. (a) What is the probability of three or more stars in 16 cubic light ...
*Thursday, February 20, 2014 at 8:16pm*

**Science**

Which of the following body systems does not rely on the autonomic nervous system to simulate involuntary events? A. skeletal system B. digestive system C. circulatory system D. respiratory system A
*Thursday, February 20, 2014 at 5:22pm*

**Science**

Read an article, and use the article to jump-start your thinking about designing your very own space mission. Think about what you want to explore in the solar system (and why!) and how you might get there. Click on the link below to read the Science NetLinks article “...
*Thursday, February 20, 2014 at 5:09pm*

**Science**

Which of the following body systems has a component that stops functioning and leads to diabetes? A) endocrine system B) digestive system C) circulatory system D) nervous system A
*Thursday, February 20, 2014 at 3:47pm*

**Science**

Which of the following body systems does not rely on the autonomic nervous system to simulate involuntary events? A. skeletal system B. digestive system C. circulatory system D. respiratory system A
*Thursday, February 20, 2014 at 2:14pm*

**Science**

Which of these structures relies on the circulatory system to transport the chemical compounds that it makes to the other body structures? a- neuron b- salivary gland c- sweat gland d- pituitary gland I think it is the pituitary gland?
*Thursday, February 20, 2014 at 1:53pm*

**Physics**

A student performs a ballistic pendulum experiment using an apparatus similar to that shown in the figure. Initially the bullet is fired at the block while the block is at rest (at its lowest swing point). After the bullet hits the block, the block rises to its highest ...
*Thursday, February 20, 2014 at 2:28am*

**Physics**

I only need help with part B. A 250W computer power supply is on 10 h per day. Part A If the cost of electricity is $0.15/kWh, what is the energy cost (to the nearest dollar) if this computer is used like this for a year (365 days)? 140 dollars Part B If this power supply is ...
*Wednesday, February 19, 2014 at 11:16pm*

**Quick math help please!!!**

Can someone show me the right answer to this system? Because I got a decimal but I don't know if that's right! 1. -2x+7y=-19 9x+7y=-30
*Wednesday, February 19, 2014 at 9:49pm*

**Math**

Can someone show me the right answer to this system? Because I got a decimal but I don't know if that's right! 1. -2x+7y=-19 9x+7y=-30
*Wednesday, February 19, 2014 at 8:09pm*

**algebra **

Need help doing a test change the test equation y-100x=2000can be used to represent monthly salary of a salesman when he sells x computer system what is the salesman monthly salary if he sells no computer
*Wednesday, February 19, 2014 at 7:41pm*

**Math help**

How would I solve this system? Y=-3 Y=x+1
*Wednesday, February 19, 2014 at 5:56pm*

**Math ~ Check Answers ~**

A system of linear equations is shown below. 5X = 3y - 2 y = X + 4 What is the x -coordinate of the solution? a.) 2 b.) 4 ***** c.) 5 d.) 1 Jean needs to graph the function below. y = 7x ^2 + 8x -6 How many times should the graph of this function intersect the x-axis? a.) 3 b...
*Wednesday, February 19, 2014 at 1:11pm*

**socialstudies(CHECK ANSWERS)**

5. Mexico City was built by the A.Olmecs, when they began to grow maize. B.Maya, after they conquered the Valley of Mexico. C.Spanish, on the ruins of the Aztec capital. (I PICK THIS) D.Mexican government, after Mexico gained independence. 8. Which region of Mexico is best for...
*Wednesday, February 19, 2014 at 1:03pm*

**socialstudies(CHECK ANSWERS)**

ANOTHER UPDATE FOR MY RECENT QUESTIONS I UPDATED ANSWERS....please check them 5. Mexico City was built by the A.Olmecs, when they began to grow maize. B.Maya, after they conquered the Valley of Mexico. C.Spanish, on the ruins of the Aztec capital. (I PICK THIS) D.Mexican ...
*Wednesday, February 19, 2014 at 12:37pm*

**socialstudies(CHECK ANSWERS)**

please check my updated asnwers thanks !! 5. Mexico City was built by the A.Olmecs, when they began to grow maize. B.Maya, after they conquered the Valley of Mexico.(I PICK THIS) C.Spanish, on the ruins of the Aztec capital. D.Mexican government, after Mexico gained ...
*Wednesday, February 19, 2014 at 12:18pm*

**algebra**

Solve the system by graphing: In order to receive credit for this problem you must show all your work. y=x+6 y=-3x+6
*Wednesday, February 19, 2014 at 12:01pm*

**socialstudies(CHECK ANSWERS)**

please check these answers ive been stuck on this stupid test for a whole week !!! 1. Sinkholes are found in the A.Mexican Plateau. B.Pacific Coastal Lowlands. C.Sierra Madres. D.Yucatán Peninsula.(I PICK THIS) 2. Compared to southern Mexico, northern Mexico A.has a ...
*Wednesday, February 19, 2014 at 11:41am*

**social studies**

please answer these im in desperate need for help...ive been stuck on it for hours. 1. Sinkholes are found in the A.Mexican Plateau. B.Pacific Coastal Lowlands. C.Sierra Madres. D.Yucatán Peninsula. 2. Compared to southern Mexico, northern Mexico A.has a drier climate ...
*Wednesday, February 19, 2014 at 9:57am*

**Math ~ Check Answers ~**

A system of linear equations is shown below. 5X = 3y - 2 y = X + 4 What is the x -coordinate of the solution? a.) 2 b.) 4 c.) 5 d.) 1 ***** Jean needs to graph the function below. y = 7x ^2 + 8x -6 How many times should the graph of this function intersect the x-axis? a.) 3...
*Tuesday, February 18, 2014 at 8:55pm*

**Physics**

Two protons, an infinite distance apart are brought together to a separation of 1 nm. What is the initial potential energy of the system?
*Tuesday, February 18, 2014 at 6:12pm*

**Math**

Every moment of every day, light pours out from the Sun at the center of our solar system and travels to Earth. It does not arrive at Earth instantaneously though; it takes time to get here. Your task is to figure out how long it takes for light to travel from the Sun to Earth...
*Tuesday, February 18, 2014 at 4:05pm*

**Algebra 1**

Julie subscribes to a sports magazine and a fashion magazine. She received 24 issues this year. The number of fashion issues is 6 less than twice the number of sports issues. Define the variables, and write a system of equations to find the number of issues of each magazine.
*Monday, February 17, 2014 at 9:51pm*

**statistics**

Suppose that each unit of a system is up with probability 2/3 and down with probability 1/3. Different units are independent. For each one of the systems shown below, calculate the probability that the whole system is up (that is, that there exists a path from the left end to ...
*Monday, February 17, 2014 at 8:34pm*

**Ethics**

1. Modern-day determinism tends to be based in: A. religious teachings. B. science. C. the idea of predestination. D. intentionalism. is it B 2. Which of the following is theorized to play an important role in imitative behavior and our capacity to relate to and empathize with...
*Monday, February 17, 2014 at 4:13pm*

**Helpppppp**

The modern grocery has cashews that sell for $4.00 a pound and peanuts that sell for 2.50 a pound. How much of each must Albert the grocer mixed to get 60 pounds of mixture that he can sell for three dollars per pound? Express the problem as a system of linear equations and ...
*Monday, February 17, 2014 at 12:11pm*

**Math problem**

The modern grocery has cashews that sell for $4.00 a pound and peanuts that sell for 2.50 a pound. How much of each must Albert the grocer mixed to get 60 pounds of mixture that he can sell for three dollars per pound? Express the problem as a system of linear equations and ...
*Monday, February 17, 2014 at 11:58am*

**Problem solving **

A group of 52 people attendance ball game. There are three times as many children as adults in the group. Write a system of equations that you can use to solve this problem where a is the number amd C is the number of children in the group. How many children are in the group
*Monday, February 17, 2014 at 11:45am*

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