Monday

February 27, 2017
**physics**

Four very thin rods, each 13 m long, are joined to form a square, as part (a) of the drawing shows. The center of mass of the square is located at the coordinate origin. The rod on the right is then removed, as shown in part (b) of the drawing. What are the x- and y-...

*Thursday, January 19, 2017 by Tyler*

**PE**

Why is fiber necessary for proper functioning of the digestive system? 1.It creates cell membranes, nerve tissue, and substances that aid in the digestion of fat. 2.(It helps proper functioning of the digestive system and prevents constipation.) 3.It is important for ...

*Wednesday, January 18, 2017 by Help I need somebody not just anybody*

**Social studies**

What believe united the progressive movement? A. That societies problems could be solved B. That education needed reform C. That there should be a federal income tax D. That political bosses should not hold office What was the main reason for the creation of the civil service...

*Wednesday, January 18, 2017 by Liziana*

**physics**

A 2.9-kg cart is rolling along a frictionless, horizontal track towards a 1.5-kg cart that is held initially at rest. The carts are loaded with strong magnets that cause them to attract one another. Thus, the speed of each cart increases. At a certain instant before the carts ...

*Tuesday, January 17, 2017 by Tyler*

**physics**

Two arrows are fired simultaneously with the same speed of 30.0 m/s. Each arrow has a mass of 0.100 kg. One is fired due east and the other due south. What is the magnitude of the total momentum of this two-arrow system?

*Tuesday, January 17, 2017 by Tyler*

**Math**

Can someone please help me with my open needed question Solve the system by substitution -X-y-z= -8 -4+4y+5z =7 2X+2z= 4

*Tuesday, January 17, 2017 by Amanda*

**Vector Calculus**

Can someone help me with this please. A vector field in cylindrical polar co-ordinates is given by V = R Rˆ + R 3 s i n ( φ ) c o s ( φ ) φˆ + 3 z kˆ where Rˆ, φˆ, kˆ are the appropriate unit vectors. Translate this vector field into the Cartesian x, y, z co-ordinate...

*Monday, January 16, 2017 by Ariana*

**vector calculus**

Can someone help me with this please. A vector field in cylindrical polar co-ordinates is given by V = R Rˆ + R 3 s i n ( φ ) c o s ( φ ) φˆ + 3 z kˆ where Rˆ, φˆ, kˆ are the appropriate unit vectors. Translate this vector field into the Cartesian x, y, z co-ordinate...

*Sunday, January 15, 2017 by Ariana*

**geography**

Describe and account the differences between the drainage pattern of the Indus system and that of Balochistan plateau.

*Sunday, January 15, 2017 by Hamza*

**Algebra 1**

A city planning committee surveys 100 people waiting at a bus stop about the expansion of the public transportation system. Is this an example of a: random sample, systematic sample, self-selected sample, convenience sample, bipartisan sample, or stratified random sample? I ...

*Friday, January 13, 2017 by Natalia*

**finance**

Emma's Cabinets is looking at a project that will require $80,000 in fixed assets and another $20,000 in net working capital. The project is expected to produce annual sales of $110,000 with associated costs (other than depreciation) of $70,000. Kurt’s pay $5,000 a year as ...

*Friday, January 13, 2017 by PMD*

**AP Physics 1**

A 1400 kg car is moving westward with a speed of 12 m/s, and a 3600 kg truck is traveling east with a speed of 27 m/s. Find the velocity of the center of mass of the system. Answer in units of m/sˆ

*Friday, January 13, 2017 by Anonymous*

**Business**

The accrual accounting system is a standard system used by most businesses and is also the system used in the simulation. In relation to the rules of accrual accounting, consider the following question: What is being "unaccounted" for?

*Wednesday, January 11, 2017 by Patte*

**Math**

Using a for airtime and w for water time ,which system of linear equations would you use to solve this problem? A stone falls from the top of a cliff into the ocean . In the air , it had an average speed of 16m/s .In the water ,it had an average speed of 3m/s before hitting ...

*Monday, January 9, 2017 by Ariasas*

**math**

Which ordered pair is a solution to the system of equations? {4x+y=2 −2x+y=5 A. (1, -2) B. (- 1/2, 4) C. (2, -6) D. (7/2, -12)

*Monday, January 9, 2017 by Jay*

**Algebra**

Solve the system by substitution. State whether the system has one solution. Infinite solutions, or no solution. 2x+y=10 x-3y=-2 I believe that the answer is x=4 y=2

*Monday, January 9, 2017 by Kalani*

**American Government**

Please check my answers 1. Which kind of policy was the troubled asset relief program (TARP)? A. It was a fiscal policy and I could buy the federal government to prevent inflation B. It was a monetary policy enacted by the federal government to expand the economy C. It was a ...

*Friday, January 6, 2017 by M*

**American Government**

Check my answers please 1. Which of the following describe the role of an entrepreneur in a capitalist economic system? (I need to select 2) A. Someone who combines the factors of production into a business B. Someone who decides how much regulation the economy needs C. ...

*Friday, January 6, 2017 by M*

**health and P.E.**

Why is fiber necessary for proper functioning of the digestive system? A:It creates cell membranes, nerve tissue, and substances that aid in the digestion of fat. B:It helps proper functioning of the digestive system and prevents constipation. C:It is important for ...

*Friday, January 6, 2017 by Jaden*

**pre calc**

Formulate a system of equations for the situation below and solve. Michael Perez deposited a total of $3000 with two savings institutions. Bank A pays interest at the rate of 6%/year, whereas Bank B pays interest at the rate of 7%/year. If Michael earned a total of $194 in ...

*Thursday, January 5, 2017 by Melissa*

**History**

Your answer 8.5 (C) 1. The Federalists and the Democratic-Republicans emerged as separate political parties partly as a result of disagreement over — * 5 points how the nation should develop economically whether to enforce the Monroe Doctrine how the nation should admit new ...

*Thursday, January 5, 2017 by ...vmju788i dumb guy/./////*

**math**

Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. 5/4x − 2/3y = 8 1/4x + 5/3y = 7 Find the solution, if one exists.

*Thursday, January 5, 2017 by Melissa*

**math**

Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. 3x − y = −3 6x − 2y = 8 a) one and only one solution b) infinitely many solutions c) no solution can you please show the work

*Thursday, January 5, 2017 by Melissa*

**American Government**

Please check my answers. 1. Which of the following is a reason explaining why prison populations have increased dramatically? A. Many prisons have close down making the ones that remain overcrowded. B. Many new prisons have been built inspiring states to fill them. C. The ...

*Thursday, January 5, 2017 by M*

**physics (mechanics)**

the potential energy of a system of two particle separated by a distance r is given by u(r) = A/r , where A is constant . find the radial force Fr that each particle exerts on the other

*Thursday, January 5, 2017 by asnke*

**History**

3.How did Spanish colonies differ from French and English colonies? a.Missionaries sought to convert Native Americans to Christianity b.Peninsulares and creoles banned the slave trade, calling it immoral. c.The encomienda system subjected native peoples to forced labor. d.The ...

*Wednesday, January 4, 2017 by Leah<3*

**Social Studies**

4.What was the encomienda system? A. a system in which Spanish monarchs shared with Native Americans the right to demand labor from peons and Africans B. a system in which the Spanish conquistadors granted Native Americans the right to demand labor from peons C. a system in ...

*Wednesday, January 4, 2017 by Leah<3*

**Physics**

Draw a block and tackle system of pulleys with a velocity ratio of 5.A block and tackle with a velocity ratio of 5 is used to raise a mass of 25kg through a vertical distanceof 40cm at a steady rate. If the efforts is equal to 60N, determine a)d distance moved by the effort b)...

*Wednesday, January 4, 2017 by Nelson*

**math**

Mark is 5 years older than twice Jessica's age. The sum of their ages is 32. How old is Mark. Use M to represent Mark's age and J to represent Jessica's age. Which system of equation could be used to find mark's age? ~M=2J+5 M+2J=32 I think it is right please correct me if not...

*Tuesday, January 3, 2017 by edgard*

**math**

2.Two cars leave Kansas City at the same time. One car is moving east and the other west. After 5 hours, the cars are 575 miles apart. One car is traveling 15 miles per hour faster than the other. Let S = the speed of the slower car and F = the speed of the faster car. If one ...

*Tuesday, January 3, 2017 by edgard*

**science**

the body system responsible for the exchange of gases between the body and the enviroment is the

*Tuesday, January 3, 2017 by kate*

**History**

Converted to the Mayan number system, what would be 152 and 100? I'm confused as to how it's set up.

*Tuesday, January 3, 2017 by Nina*

**math**

The difference of two numbers is 321. The larger number is 190 more than twice the smaller number. Which system of equations presents this information? (S = smaller number and L = larger number) I got: L-S=321(the difference) L=2S+190 What did i do wrong please help me

*Tuesday, January 3, 2017 by edgard*

**algebra**

Graph the system of inequalities (shade each half-plane solution,not only the overall solution). y<= 3/2x+3 2x + y<10 y>-1

*Monday, December 26, 2016 by Anneliese*

**algebra**

Please check my system of linear equations using any algebraic method. Show the check,if possible. 8x-6y=12 / 12x-9y=18 8x-6y=12 (eq.1) 12x-9y=18 (eq.2) 4x-3y=6 (eq.1) 4x-3y=6 (eq.2) y=4x-6 / 3 Check: Thank you for your help.

*Monday, December 26, 2016 by Anneliese*

**ENGLISH**

Insert articles in the following sentences whenever required: 5 i Scientists are now beginning to worry about contamination of entire solar system. ii People often say that writer’s life is unimportant and all that matters is in books. That is usually exaggeration. iii In ...

*Monday, December 26, 2016 by SARITHA*

**Government**

Please help me with government 1. The 10th amendment to the Constitution reads as follows: " The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people." According to the 10th...

*Saturday, December 24, 2016 by M*

**algebra**

what is the solution of the system? Use substitution. 3x-y=-9 4x -y=-4 my answer is (-5,-6) can you please help

*Saturday, December 24, 2016 by Joe*

**Physics**

Work done by conservative forces change only A)PE of the system B)KE of the system C) ME of the system D)None of these

*Saturday, December 24, 2016 by Nikita*

**Science Chemistry**

Phosphorous (P) is an indispensable nutrient in food production. According to the estimates, mineral phosphorous resources will end up within 50 years and consequently new sources of P has to be found. A human excretes 2,2 g of phosphorous (P) per day on average. In ...

*Thursday, December 22, 2016 by karem*

**history**

Which of the following is a major example of Abraham Lincoln's policy of leniency toward the defeated South? A. Pres Lincoln's willingness to have federal government assume responsibility of the Confederate government's war debts. B. Pres Lincoln's choice to have a Southerner...

*Wednesday, December 21, 2016 by Hi*

**Science**

Phosphorous (P) is an indispensable nutrient in food production. According to the estimates, mineral phosphorous resources will end up within 50 years and consequently new sources of P has to be found. A human excretes 2,2 g of phosphorous (P) per day on average. In ...

*Wednesday, December 21, 2016 by karem*

**Math**

Is (2,12) a solution to the given system? y>2x+4 y<3x+7 Yes No What is the solution of the system of equations shown below? 2x+2y=10 5x-2y=4 (-2,7) (2,7) (2,3) (3,2) The point (-3,11) is a solution of which of the following systems? y≥x-2 2x+y≤5 y>x+8 3x+y>2 y...

*Tuesday, December 20, 2016 by Anonymous*

**American Government**

1. "Americans of all ages, all conditions, and all dispositions, constantly form associations... not only for commercial and manufacturing but of a thousand other kinds -- religious, moral, serious, futile, extensive or restricted, enormous or diminutive. " -Alexis de ...

*Tuesday, December 20, 2016 by M*

**Write the system of equations as an augmented matr**

-4x-y=-6 -8x-5y=-6 Solutions:

*Monday, December 19, 2016 by Anonymous*

**Physics**

A 13 kg block(mA) rests on a level table. The coefficient of kinetic friction between the block and the table is .15. A string of negligible mass is attached to the block. The string, which is perfectly horizontal, passes through a frictionless pulley at the edge of the table ...

*Monday, December 19, 2016 by Anonymous*

**Algebra 1**

How many solutions does this system have? 2x + y = 3 6x = 9 - 3y A) One B) None C) Infinite**** D) Two And if anyone knows the other question "connexus academy" I'd appreciate that thanks!!

*Monday, December 19, 2016 by Math help please!*

**Calculus**

A chemical substance is draining from a conical filtering system at a rate of 100 cubic centimeters per minute into a cylindrical storage tank below. The conical filter and cylindrical tank each have a diameter of 60 centimeters, and the height of the cone also measures 60 ...

*Monday, December 19, 2016 by Luke*

**Amerian government**

PLEASE PLEASE PLEASE HELP ME 1. What type of power does the Constitution grant to the Supreme Court? (1 point) executive power federal power judicial power legislative power 2. Which are examples of judicial restraint in the Supreme Court? Select all that apply. (3 points) •...

*Sunday, December 18, 2016 by andrea*

**math**

Two cars leave Kansas City at the same time. One car is moving east and the other west. After 5 hours, the cars are 575 miles apart. One car is traveling 15 miles per hour faster than the other. Let S = the speed of the slower car and F = the speed of the faster car. If one ...

*Sunday, December 18, 2016 by Jose*

**Physics**

9. Figure shows an aluminium wire of length 60 cm joined to a steel wire of length 80 cm and stretched between two fixed supports. The tension produced is 40 N. The cross-sectional area of the steei wire is 1.0 mm2 and that of the aluminium wire is 3.0 mm2. The minimum ...

*Sunday, December 18, 2016 by Vandit*

**Algebra**

A taxi cab charges $0.55 per mile in addition to a $1.75 flat rate fee. Susie has $10 to spend on a taxi cab ride. The taxi driver will not give anyone a ride unless they are going somewhere that is more than 2 miles away. Model Susie’s situation with a system of inequalities.

*Friday, December 16, 2016 by TY*

**Gauss-Jordan elimination**

Write the system of equations as an augmented matrix. Then solve for x and y. -3x+3y=-21 3x+2y=-4

*Thursday, December 15, 2016 by Anonymous*

**augmented matrix**

Write the system of equations as an augmented matrix. Then solve for x and y. 3x+y=-11 -9x-3y=33

*Thursday, December 15, 2016 by Anonymous*

**Gaussian Elimination Method**

Write the system of equations as an augmented matrix. Then solve for x and y. -3x-y=11 -9x-2y=34 Solution =

*Thursday, December 15, 2016 by Devin*

**Math**

PLEASE CHACK MY ANSWER!!! Discussion for Applications of Linear Systems When solving a system of equations, how do you determine which method to use? My answer: I determine which method to use by looking at the equations. If both equations are in slope-intercept form, I choose...

*Thursday, December 15, 2016 by Matthew*

**Physics**

A 0.50-kg mass is placed on the end of a vertical spring that has a spring constant of 75 N/m and eased down into its equilibrium position. (a) Determine the change in spring (elastic) potential energy of the system. PEs=1/2kx^2=1/2(75)(0.5)^2=9.375 (b) Determine the system...

*Wednesday, December 14, 2016 by Court*

**Social Studies**

1.Diversity most closely means (1 point) A. Sharing cultural traits and practices with others. B. Making up a whole of many different parts. ** C. being a member of a small ethnic group. D. Having many similar regions next to one other. 2. How does life in Istanbul differ from...

*Wednesday, December 14, 2016 by Check Please*

**precalculus**

can you check my work? Solve the system of equations at the right by the method of substitution. Verify your results by using a graphing utility. x^2+y^2-4x+6y-5=0, x+y+5=0 x=-y-5 (-y-5)^2+y^2-4(-y-5)^2+6y-5=0 y=√5-5, y=-5-√5 x+√5-5+5=0 x=-√5 x-5-√5+5=0 x=√5 y=√5...

*Wednesday, December 14, 2016 by Anonymous*

**precalculus**

Solve the system of equations at the right by the method of substitution. Verify your results by using a graphing utility. x2+y2-4x+6y-5=0, x+y+5=0 answer: x=-y-5 (-y-5)2+y2-4(-y-5)2+6y-5=0 y=√5-5, y=-5-√5 x+√5-5+5=0 x=-√5 x-5-√5+5=0 x=√5 y=√5-5, y=-5-√5, x...

*Wednesday, December 14, 2016 by Anonymous*

**Algebra**

Kyle has 13 coins in his pocket that are either quarters or nickels. He has $2.05 in his pocket in coins. Let q represent the number of quarters and n represent the number of nickels. The following system of equations represents this situation: q+n=13 0.25q+0.05n=2.05 How many...

*Wednesday, December 14, 2016 by Suzan*

**History**

Why did Horace Mann feel that reforming the American education system was important? It would help people attain better jobs It would help in the fight to end slavery It would help in the fight for gender equality It would help people become better christians

*Tuesday, December 13, 2016 by Hihicat*

**Maths**

The diagram shows a 6 kg block resting on a rough horizontal table. It is connected by light, inextensible strings passing over two smooth pulleys to two blocks of masses 2kg and 5kg which hang vertically. Calculate the coefficient of friction between the 6kg block and the ...

*Tuesday, December 13, 2016 by John B*

**Algebra**

For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you substitute into the second equation? −x − 2y = −4 3x + y = 12 −2y − 4 2y − 4 2y + 4 −2y + 4 --- I think it'd be this one, is it correct?

*Tuesday, December 13, 2016 by anonymouse*

**political science**

1) Scenario: The President appoints Dan Evans to Senator Adams' seat when Adams resigns due to a personal scandal. This scenario is: a) Constitutional, because it is within the President’s powers to appoint Senators when one dies or resigns in the middle of his/her term. b) ...

*Tuesday, December 13, 2016 by Alex*

**Algebra**

Hello....I was helped on this question earlier, but I don't understand why we divide by 2? Please help, please see the below: The president will order 5 turkey sandwich combos and 7 steak lunches and spends $124.00. The other president will get 10 turkey combos and 5 steak ...

*Monday, December 12, 2016 by Mary*

**math**

is it possible for system of two linear equations to have no solution.

*Monday, December 12, 2016 by Anonymous*

**social studies**

Which document establishes the separation of powers? a. the Bill of Rights b. the Articles of Confederation c. the Declaration of Independence d. the Constitution *** In what way did the structure of the Virginia House of Burgesses influence the governments of the states and ...

*Monday, December 12, 2016 by LAFAYETTE*

**Algebra**

2. Tell whether the system has one solution infinitely many solutions or no solution. x=-7y+34 x+7y=32 a. one solution b. infinitely many solutions c. no solution*** can you please solve this thank you

*Monday, December 12, 2016 by Leslie*

**algebra**

1. Tell whether the system has one solution infinitely many solutions or no solution. 6y=-5x+24 2.5x+3y=12 a. one solution b. infinitely many solutions*** c. no solution i know its B but can you solve it step by step for me thank you

*Monday, December 12, 2016 by Leslie*

**Algebra**

Please help: The president will order 5 turkey sandwich combos and 7 steak lunches and spends $124.00. The other president will get 10 turkey combos and 5 steak combos for $140.00. How much is a turkey sandwich combo? Write a system of equation. 5x + 7y = $124.00 10x + 5y= $...

*Sunday, December 11, 2016 by Mary*

**Physics**

1. The figure shows a 100-kg block being released from rest from a height of 1.0 m. It then takes 0.53 s for it to reach the floor. What is the mass m of the block on the left? There is no friction or mass in the pulley, and the connecting rope is very light. A) 16 kg B) 14 kg...

*Sunday, December 11, 2016 by Shelby*

**Algebra**

Can you please review to see if I am on the right track with this problem: The length of a rectangle is 2 centimeters less than two times the width of the rectangle. If the perimeter of the rectangle is 98 centimeters, what is the length of the rectangle? Write a system of ...

*Sunday, December 11, 2016 by Leroy*

**Algebra**

Can you please help me with this problem: The x-intercept of a line has a value of -3/2 and a y intercept of 3. Another line has a slope that is three times the slope of the first line and has a y-intercept that is 28 more than the first line's y-intercept. What is the ...

*Sunday, December 11, 2016 by Lucille*

**physics**

A car's internal combustion engine can be modeled as a heat engine operating between a combustion temperature of 1500∘C and an air temperature of 20∘C with 30% of the Carnot efficiency. The heat of combustion of gasoline is 47 kJ/g. Q) What mass of gasoline is burned to ...

*Sunday, December 11, 2016 by Help*

**Physics**

1. The figure shows a 100-kg block being released from rest from a height of 1.0 m. It then takes 0.53 s for it to reach the floor. What is the mass m of the block on the left? There is no friction or mass in the pulley, and the connecting rope is very light. A) 16 kg B) 14 kg...

*Sunday, December 11, 2016 by Shelby*

**History**

1. Which answer best explains how the Articles of Confederation addressed the question of creating a court system? The Articles established the trial-by-jury system for the first time in history. The Articles created state, regional, and national courts throughout the land...

*Sunday, December 11, 2016 by Caitlyn - Please help*

**US HISTORY - Help please**

Which answer best explains how the Articles of Confederation addressed the question of creating a court system? The Articles established the trial-by-jury system for the first time in history. The Articles created state, regional, and national courts throughout the land.*** ...

*Sunday, December 11, 2016 by Caitlyn*

**Social Studies *Check Answers***

Anyone mind checking these 2 quiz answers please? Which statement best explains why nation-states write constitutions? A: Constitutions give citizens unlimited powers. B: Constitutions establish nation-states. C: Constitutions allow governments to elect leaders D: ...

*Sunday, December 11, 2016 by Natalie*

**Chemistry**

Which of the following is TRUE for a system that is in dynamic equilibrium? A) The forward reaction goes to 100% completion. B) The concentration of products is equal to the concentration of the reactants. C) The reaction rate of the forward reaction approaches zero. D) Both ...

*Saturday, December 10, 2016 by Mimi*

**Algebra**

Can you please help me with this problem: The x-intercept of a line has a value of -7/6 and a y-intercept of 7. Another line has a slope that is twice the slope of the first line an a y-intercept that is 15 more than the first lines' y-intercept. What is the product of the ...

*Saturday, December 10, 2016 by Chris*

**Algebra**

Can you please help with this problem: At Super Saver Mart (SSM), you can buy three packs of toilet paper and seven boxes of cereal for $46.00. You can also purchase 8 packs of toilet paper and 4 boxes of cereal for $75.00 at SSM. What is $14 more than the combined price of ...

*Saturday, December 10, 2016 by Leroy*

**Algebra**

Can you PLEASE help me with this Algebra problem: In a hotel conference room, the number of chairs is 47 more than the number of people currently in the room. The total number of legs currently in this room is 938. What is the sum of the digits in the number of people ...

*Saturday, December 10, 2016 by Anonymous*

**Algebra**

Please help me with this Algebra problem: The length of a rectangle is 91 less than six times the width of the rectangle. If the perimeter of the rectangle is 84 centimeters, what is the length of the rectangle? Write a system of equations for this situation and find its ...

*Saturday, December 10, 2016 by Leroy*

**Algebra**

Can you please help on this Algebra problem? Keana's piggy bank contains $4.30 in nickels and dimes only. If she has 59 coins in her ban, then what is the sum of the digits in the number of nickels in Keana's bank? Write a system of equations for this situation and find its ...

*Saturday, December 10, 2016 by Leroy*

**Anatomy and Physiology**

1. Simple sugars are (1 point) lipids. monosaccharides. polysaccharides. minerals. 2. Which of the following statements is not true about the immune system? (1 point) In children, lymphatic tissues such as adenoids, tonsils, and lymph nodes enlarge as growth ...

*Saturday, December 10, 2016 by unknown*

**system of equations**

Write the system of equations as an augmented matrix. Then solve for x and y. 5x-3y=-34 10x−5y=−65

*Friday, December 9, 2016 by Anonymous*

**Algebra 1**

1.) Which best describes a system of equations that has no solution? •consistent, independent •inconsistent, dependent •consistent, dependent •inconsistent* ANSWER: D Please check my answer, thank you!

*Friday, December 9, 2016 by Anon*

**Algebra**

My science class is pretty small. There are just 18 students in the class. My teacher, Mr. Burnett, has an unusual system for picking lab partners. He has given each student a number from 1 to 18, and on lab days, he pulls two numbers out of a bag to match people up. During ...

*Thursday, December 8, 2016 by Chioma*

**Civics**

Which of the following is the best example of the idea of "separation of powers" in the American constitutional system? A.The president appoints judges, but legislators get elected.** B. The process for creating laws involves Congress and the president.** C. The military is ...

*Thursday, December 8, 2016 by Civics help*

**Civics**

Which of the following is the best example of the idea of "separation of powers" in the American constitutional system? A.The president appoints judges, but legislators get elected.** B. The process for creating laws involves Congress and the president.** C. The military is ...

*Thursday, December 8, 2016 by Need help*

**Operating System Application**

Growth of the size in main memory

*Wednesday, December 7, 2016 by Anonymous*

**Physics**

We have a heat engine that produces 150 J of heat, does 40 J of work, and emits 110 J into another system. What is the efficiency of the heat engine? (show you work)

*Wednesday, December 7, 2016 by Mark*

**Social Studies Pretest Lesson 1 Unit 7**

1: Why is urbanization associated with the Industrial Revolution? A:The expansion of family farms refocused the nation on agriculture. B:The concentration of factories in cities brought job opportunities. C: Settlers expanded the frontier West of the Mississippi river. D: ...

*Wednesday, December 7, 2016 by Reeces*

**pre calculus**

In the rectangular coordinate system, each point (x, y) has a unique representation. Explain why this is not true for a point (r, Θ) in the polar coordinate system.

*Wednesday, December 7, 2016 by john*

**algebra 1**

Name the point of intersection for the following system, if it exists. 4x â€“ 3y = -3 3x â€“ y = -6

*Wednesday, December 7, 2016 by Anonymous*

**Physics**

Just as no mechanical device can be 100% efficient, no heat engine can transfer 100% of its heat to a single object. Some of the heat energy must be wasted (released into the environment). We have a heat engine that produces 150 J of heat, does 40 J of work, and emits 110 J ...

*Wednesday, December 7, 2016 by Jessica*

**science double check answers**

1.Asteroids in our solar system are a)planets b)comet remains c)found in an asteroid belt** d)pieces of ice 2.Which of the following would not be found on the electromagnetic spectrum? A)The wavelengths of electromagnetic radiation B)The frequency of electromagnetic radiation ...

*Tuesday, December 6, 2016 by katrina*

**algebra**

Solve each system of eaquations by graphing or using a table. 5x-y=12 3x+2y=12

*Tuesday, December 6, 2016 by ram*

**Psychology Final Exam 2**

Check my answers? 17. A _________ is the functional unit of the nervous system. (1 point) Neuron******* Dendrite Head Cell body 18. The Central Nervous System consists of the __________ and __________. (1 point) heart and blood vessels muscles and tendons axons and dendrites ...

*Tuesday, December 6, 2016 by Ava*