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September 23, 2014

September 23, 2014

**Recent Homework Questions About Operating Systems**

Post a New Question | Current Questions

**American History**

True or False Questions 1. The Kansas-Nebraska Act dealt a serious blow to sectional harmony by simply strengthening the Missouri Compromise. 2. Planters or merchants took advantage of the sharecropping system by forcing blacks to use credit to buy good and overcharging for ...
*Saturday, July 20, 2013 at 11:59pm*

**quantitative methods for business**

A manager of an inventory system believes that inventory models are important decision-making aids. Even though often using an EOQ policy, the manager never considered a backorder model because of the assumption that back orderes were “bad” and should be a avoided. ...
*Friday, July 19, 2013 at 7:14pm*

**physics**

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance of d=15 ...
*Friday, July 19, 2013 at 8:09am*

**Solution Set**

The Y-coordinate of the solution of the system {x+y=3 {-3x+2y=-19 the answer is -2 how? I've done everything to try to solve!
*Thursday, July 18, 2013 at 9:04pm*

**Sociology**

In Chapter 2 of the textbook, the author describes meanings for the concept of socio-economic class and analyzes how perceptions of justice may be influenced by class distinctions in American society (see Section 2.4). He also references the related views of two provocative ...
*Thursday, July 18, 2013 at 6:25pm*

**alg2 check?**

Graph the system of inequalities then substitute the (x,y)order pair into both inequalities. y>3x+1 y<-2/3x+4 (second one has a line under the arrow) I don't get what they are asking for? if they want me to solve it how am I suppose to set it up?
*Thursday, July 18, 2013 at 1:49pm*

**SCIENCE,PHYSICS**

A thin ring with resistance R=10 Ω and self inductance L=0.2 H rotates with constant angular speed ω=100 rad/s in an external uniform magnetic field perpendicular to the rotation axis. As a result, the magnetic flux created by the external field varies with time as...
*Thursday, July 18, 2013 at 10:26am*

**Psychology**

Is this a source that you would consider a scholsrly source. Kliff, S. 2012. Seven facts about America’s mental health-care system. The Washington Post.
*Thursday, July 18, 2013 at 8:04am*

**physics**

Consider a beam as shown in the figure that is 2 m long and supported by a rope. It is pressed against the wall. There is no friction between the wall and the beam. If the beam has a mass of 2 kg and a sign with a mass of 10 kg is hung off of the end of the beam, can the ...
*Thursday, July 18, 2013 at 12:49am*

**Math**

At&t bought a new computer system. The company borrowed. $46,100 at 6 1/3% for 155 days. Find the interest owed?
*Wednesday, July 17, 2013 at 1:42pm*

**physics**

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance of d=15 ...
*Wednesday, July 17, 2013 at 1:29pm*

**physics**

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance of d=15 ...
*Wednesday, July 17, 2013 at 9:32am*

**physics**

An automatic dryer spins wet clothes at an angular speed of 4.4 rad/s. Starting from rest, the dryer reaches its operating speed with an average angular acceleration of 4.2 rad/s2. How long does it take the dryer to come up to speed?
*Tuesday, July 16, 2013 at 2:03pm*

**physics**

A Ferris wheel rotates at an angular velocity of 0.28 rad/s. Starting from rest, it reaches its operating speed with an average angular acceleration of 0.021 rad/s2. How long does it take the wheel to come up to operating speed?
*Tuesday, July 16, 2013 at 1:52pm*

**physics**

What mass would you hang on the right side of the system in the figure to balance it -- that is, to make the clockwise and counterclockwise torques equal? (Let x1 = 30 cm and x2 = 12 cm.)
*Tuesday, July 16, 2013 at 12:36pm*

**Physics**

Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance of d=15 ...
*Tuesday, July 16, 2013 at 12:35pm*

**CURRENT PROCD TERMN CODING**

wHAT IS THE CODING SYSTEM PHYSICIANS USE TO FILE THEIR CLAIMS
*Monday, July 15, 2013 at 10:35pm*

**IT/205**

Read “The U.S. Census Bureau Field Data Collection Project: Don’t Count On It” beginning on p. 413 of Essentials of Management Information Systems. Answer the following questions in 200 to 300 words: Dose this mean each question 200 to 300 word or dose it mean ...
*Monday, July 15, 2013 at 10:08pm*

**american history**

Under the _______ system, Spanish conquistadors were rewarded with local villages and control over the local labor force
*Monday, July 15, 2013 at 5:29pm*

**algebra**

A store sold 29 sweatshirts. White ones cost $ 9.95 and yellow ones cost $ 11.50 If $ 305.05 worth of sweatshirts were sold, how many of each were sold. Let x=the number of white sweatshirts Let y= the number of yellow sweat shirts Complete the system of equations. x+y= $ x...
*Monday, July 15, 2013 at 8:09am*

**algebra**

A non toxic floor wax can be made from lemon juice and food grade linseed oil. the amount of oil should be twice the amount of lemon juice. how much of each ingredient is needed to make 36 ounces of floor wax. let x represent the number of ounces of lemon juice and y ...
*Monday, July 15, 2013 at 7:39am*

**algebra**

Solve the system using elimination X+3y=5 4x+4y=4 I tried to work this problem and this is what I came up with. x+3y=5 x+4y=20 7y=15 y=7/15 and x= (5+y)/4 (5+7/15)/2 2/15 x=2/15 x=2/15, y=7/15 I would like for someone to check to see if it is correct.
*Monday, July 15, 2013 at 2:33am*

**Java programming- simulation of rolling dice**

This is what i have so far. I'm supposed to simulate the 4 dice tossed 1 million times . (so a total of 4 million) I'm trying to get the first die(If I can figure out the first one then I can figure out the other 3. So the trouble I am having is that I cant get the ...
*Sunday, July 14, 2013 at 5:59pm*

**Physics**

Two 1.5 kg balls move away from each other, one traveling 6 m/s to the right, the other 2 m/s to the left. What is the magnitude of the total momentum of the system? Answer in units of kg · m/s
*Sunday, July 14, 2013 at 5:54pm*

**algebra**

Solve the given system by the substitution method. 2x+y=6, 5x-2y=6
*Sunday, July 14, 2013 at 4:09pm*

**General Chemistry**

H2 (g) + I2 (g) -> 2HI (g) What would happen to the amount of iodide present if hydrogen iodide is added? Removed? The volumeof the system is decreased? I got increase, decrease & same as my answer, but I don't completely understand it. Please help.
*Saturday, July 13, 2013 at 6:39pm*

**theory to practice**

Which of the following is an obstacle to learning for a begining mover? A.Knowledge of what elements of the movememts to focus on. B. Chronic indifference characteristic between birth and age three. C.shorter time to monitor perceptual input from the visual system. D. ...
*Thursday, July 11, 2013 at 3:38pm*

**ETH/125**

2.Sociologists point out that gender differences are maintained through a. systematic socialization. b. the legal system. c. the class system. d. biological differences. i am torn between a & d
*Wednesday, July 10, 2013 at 9:15pm*

**eth/125**

Sociologists point out that gender diffrences are maintained through a.systematic socialization b.the legal system c.the class system d. All of these
*Wednesday, July 10, 2013 at 9:11pm*

**Calculus**

During a flu epidemic, the number of children in the Woodbridge Community School System who contracted influenza after t days was given by the following. Q(t) = 8000/(1+199 e^(-0.6 t)) (a) How many children were stricken by the flu after the first day? children (b) How many ...
*Wednesday, July 10, 2013 at 8:53pm*

**Bio**

1. Pseudoscience and nonscience differ in that: A. nonscience is not valuable and pseudoscience is valuable. B. pseudoscience deceives, misleads, or misinforms and this is not a primary characteristic of nonscience. C. nonscience forms hypotheses and pseudoscience does not. D...
*Wednesday, July 10, 2013 at 2:30pm*

**business communication**

can you plz correct it Howdy comrades! Shouldn’t surprise anyone that we took a beating this year, given the insane pricing moves our knucklehead competitors have been making. I mean how those clowns can keep turning a profit is beyond me, what with steel costs still ...
*Wednesday, July 10, 2013 at 10:06am*

**PHYSICS**

An airplane is flying straight and level at a speed vo = 150 mph and with a constant time rate of increase of speed v' = 20 ft/s^2, when it starts to climb along a circular path with a radius of curvature p = 2000 ft. The airplane maintains v' constant for about 30s. ...
*Tuesday, July 9, 2013 at 11:12pm*

**Physics (mechanics)**

A u-control airplane of mass m is attached by control wires of length L and negligible mass to the "pilot" who controls the lift provided by the wing FL. The wires control the plane's elevator or angle of attack. The plane's engine keeps it moving at constant...
*Tuesday, July 9, 2013 at 4:48pm*

**Number System**

Subtract the following numbers using the standard method. 111 1110 0010 - 100 0111 - 111 =
*Tuesday, July 9, 2013 at 6:20am*

**Number System**

Add the following numbers: 1110 1011 101 + 101 1111 + 1111 =
*Tuesday, July 9, 2013 at 6:18am*

**Number System**

Converts binary 110111011 to hexasecimal.
*Tuesday, July 9, 2013 at 6:13am*

**math**

The population of a small town is modelled by the function p(t)= 20(4t+3)/2t+5 , where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. a) Is the population currently increasing or decreasing? Justify your answer. b) The town will need ...
*Monday, July 8, 2013 at 8:10pm*

**MATH**

4. The population of a small town is modelled by the function p(t)= 20(4t+3)/2t+5 , where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. a) Is the population currently increasing or decreasing? Justify your answer. b) The town will need...
*Monday, July 8, 2013 at 7:09pm*

**financial management**

How are finance and accounting related to an operating budget? where can I find information about this question. Basically I am asking how to break it down for easier searching any help is appreciated
*Monday, July 8, 2013 at 7:02pm*

**math**

find all nonnegative integer solutions of the system x+y<8 x+z<8 t+y<8 z+t<8
*Monday, July 8, 2013 at 11:31am*

**math**

find all nonnegative integer solutions of the system x+y<8 x+t<8 t+y<8 z+t<8
*Monday, July 8, 2013 at 10:11am*

**Math**

Solve the following system of equations using the cross multiplication method,ax+by=a-b;bx-ay=a+b
*Monday, July 8, 2013 at 3:21am*

**Physics**

Two equal masses(1 and 2) are connected by an ideal rope across a pulley. This system is on a larger block A; 1 is on top of A, while 2 is hanging off the side, and the pulley rests on the corner of A. The question is what is the minimal acceleration of A such that masses 1 ...
*Sunday, July 7, 2013 at 2:11pm*

**MATH**

4. The population of a small town is modelled by the function p(t)= 20(4t+3)/2t+5 , where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. a) Is the population currently increasing or decreasing? Justify your answer. b) The town will need...
*Saturday, July 6, 2013 at 11:09pm*

**Help please criminal j.**

1. In re Gault assured juveniles a. the right to a jury trial b. all the above c. due process in the legal system d. the right to be tried as an adult All the above 2. Obtaining a confession by__ is constitution a. misrepresentations b. psychologicalcoercion c. physical ...
*Saturday, July 6, 2013 at 12:13pm*

**phy**

(Q1)A 40N force applied at an angle of 37c above the horizontal pulls a 5kg box on a horizontal floor. The acceleration of the box is 3m/s2,How large a frctional force must be retarding the motion of the box. (a)50 N(b)13N(c)17N(d)25N (Q2) A block of mass 2kg is connected to a...
*Saturday, July 6, 2013 at 2:05am*

**algebra**

how do you Solve the following system using the elimination method: 2x - 4y = 2 -4x + 6y = -4
*Thursday, July 4, 2013 at 4:47pm*

**physics**

In the following figure m_1 = 20.0kg kg and á alpha = 50.9 ∘ ^\circ. The coefficient of kinetic friction between the block and the incline is ì k = 0.40 What must be the mass m 2 of the hanging block if it is to descend 9.00m m in the first 3.00s s after ...
*Thursday, July 4, 2013 at 1:49pm*

**statistics **

The makers of the MAGNETIZER Engine Energizer System (EES) claim that it improves gas mileage and reduces emissions in automobiles by using magnetic free energy to increase the amount of oxygen in the fuel for greater combustion efficiency. Following are test results, ...
*Thursday, July 4, 2013 at 1:07pm*

**math 3**

Solve the following system using the elimination method: 10x - 6y = -16 5x + 2y = 22
*Thursday, July 4, 2013 at 12:30pm*

**math 2**

Solve the following system using the elimination method: -6x + 2y = 5 12x - 4y = -20
*Thursday, July 4, 2013 at 12:28pm*

**math**

Solve the following system using the elimination method: -3x + 4y = 6 9x - 12y = -18
*Thursday, July 4, 2013 at 12:20am*

**algebra**

Solve the following system using the substitution method: 6x - 2y = -4 y = 3x + 2
*Wednesday, July 3, 2013 at 5:35pm*

**math**

Solve the following system using the substitution method: 2x + 4y = 5 x = -2y + 6
*Wednesday, July 3, 2013 at 5:34pm*

**math**

Solve the following system using the substitution method: y = 3x - 9 y = -x - 1
*Wednesday, July 3, 2013 at 5:33pm*

**algebra**

Solve the following system using the substitution method: 3x + y = -3 y = 2x + 7
*Wednesday, July 3, 2013 at 5:32pm*

**element of chemical engineering**

the specific internal energy of a fluid is 200 cal/g .if the fluid leaves a system at a flow rate of 5 g/min ,at what rate does it transport internal energy out of the system?
*Wednesday, July 3, 2013 at 12:45pm*

**phy**

(Q1)calculate the electric power which must be supplied to the filament of a light bulb operating at 3000k. the total surface area of the filament is 0.000008m2 and iits emissivity is 0.92.(a)20.3w (b)33.8w(c)46.4w(d)56.7w (Q2) calculate the change in internal energy of 2kg of...
*Wednesday, July 3, 2013 at 5:47am*

**phy**

a 0.5kg piece of metal (c=600j/kg/k) at 300c is dumped into a large pool of water at 20c. assuming the change in temperature of water to be negligible,calculate the overall change in entropy for the system (a)85.5j/k(b) 67.4j/k(c) 122.3j/k
*Wednesday, July 3, 2013 at 4:45am*

**Chemistry**

H2 and F2 react according to the following equation, forming HF. H2(g) + F2(g) 2HF(g); H° = –271 kJ If H2(g) and F2(g) were mixed in a thermally insulated vessel, the reaction that occurred would be a. endothermic, and the temperature of the reaction ...
*Tuesday, July 2, 2013 at 8:01pm*

**Chemistry**

Bulb A is 100mL and contains Helium at 1atm. Bulb B is 500ml and contains Argon at 2atm The bulbs are connected together by a valve. (assume constant tempreature). What is the mole fraction of Argon in the opened system?
*Tuesday, July 2, 2013 at 7:33pm*

**Chemistry**

Bulb A is 100mL and contains Helium at 1atm. Bulb B is 500ml and contains Argon at 2atm The bulbs are connected together by a valve. (assume constant temperature). What is the total pressure of the system after the valves are opened?
*Tuesday, July 2, 2013 at 7:00pm*

**Chemistry**

The phrase “the heat absorbed or released by a system undergoing a physical or chemical change at constant pressure” is a. the change in enthalpy of the system. b. the change in internal energy of the system. c. the definition of a state function. d. the temperature ...
*Tuesday, July 2, 2013 at 5:09pm*

**Physics**

Two charges +q and −q are separated by a distance d=50 cm. The electric field lines for this system form the the well-known pattern showed in the figure below. Consider two lines L1 and L2 lying on the same plane and leaving the positive charge at α=±45∘...
*Monday, July 1, 2013 at 2:18pm*

**economics**

hoew do each of the following infastructure items affect aggregate supply: a) highways, b) schools, c) sewerage system, d) courts and prisons ?
*Monday, July 1, 2013 at 3:25am*

**Human Resources**

Creating a Budget Various budget approaches play an important role in resource allocation in human service organizations. You are the executive director for a local government workforce agency that focuses on providing career- and work-related skills. The Department of ...
*Sunday, June 30, 2013 at 9:16pm*

**physics**

A calorie is unit of heat or energy and it equals about 4.2J, where 1J= 1 kgm2/s2. Suppose we employ a system of units in which the unit of mass α kg, the unit of length β m & the unit of time γ s. Show that a calorie has a magnitude of 4.2α-1β-2γ...
*Sunday, June 30, 2013 at 10:27am*

**business**

Can you check my answers??? 11. Nearly a week before Hurricane Katrina reached New Orleans, Wal-Mart began moving trucks and supplies into position, as specified in the company's ________ plan. A. contingency B. operational C. tactical D. strategic 12. The country Artesia ...
*Saturday, June 29, 2013 at 1:25pm*

**Mathematics**

The nearest star to our solar system, is 4.3 light-years away Express this distance in miles in scientific notation
*Saturday, June 29, 2013 at 12:58pm*

**Math 116**

Identify the solution (s) of the system of equations, if any. x=1 y=1 (A) no solutions (B) (0,0) (c) (1,1) (D) infinitely many solutions Identify the solution (s) of the system of equations, if any. 3x-2y=6 5x=5-25y (A) (28/13, 3/13) (B) (-3/17, 32/17) (C) (2/17,-3/17) (D) (32...
*Saturday, June 29, 2013 at 11:37am*

**business**

Can anyone help with these questions??? 11. Nearly a week before Hurricane Katrina reached New Orleans, Wal-Mart began moving trucks and supplies into position, as specified in the company's ________ plan. A. contingency B. operational C. tactical D. strategic 12. The ...
*Saturday, June 29, 2013 at 10:42am*

**PHYSICS**

QUIZ 1 AND 2, PROBLEM 3 A block of mass M is pulled with a rope that exerts a force of a magnitude F, causing it to slide over horizontal ground with kinetic coefficient of friction μ (use "mu" when you input your answer). The force is applied at angle θ (...
*Saturday, June 29, 2013 at 3:48am*

**Excel**

I have my employee schedule in a excel sheet. It is a weekly schedule that doesn't change week by week, but changes day by day within a week. Every Monday, Tuesday, etc. is the same schedule. In the file are days for Monday, Tuesday, etc.. I don't know if this possible...
*Friday, June 28, 2013 at 9:55pm*

**Government (Check Answers)**

1. What is the procedure of voter identification intended to help prevent fraudulent voting and keep the process organized? A) political socialization B) registration C) gerrymandering D) precinct divisions E) franchising 2. What do you call all the persons entitled to vote in...
*Thursday, June 27, 2013 at 6:16pm*

**Algebra 1A**

What do you do to graph (and shade) a system that does overlap?
*Thursday, June 27, 2013 at 2:47pm*

**government**

1. The Framers of the US Constitution supported political parties. A) True B) False 2. The US is predominantly a multiparty system. A) True B) False 3. The main focus of major parties is to nominate candidates and get them elected. A) True B) False 4. The purpose of the ...
*Thursday, June 27, 2013 at 1:43am*

**Algebra 1**

Hi, What point is a solution to the system of inequalities y >4x and y >-2x-3 (1/2,2)?
*Wednesday, June 26, 2013 at 2:01pm*

**college physics**

an atwood machine is constructed by mounting a well-lubricated pulley (not necessarily a ring/disc), whose radius is 6.00cm on an axle and passing a rope over the pulley. Each end of the rope is attached to a different mass of 3.0 kg and 2.0kg so they both hang vertically. ...
*Tuesday, June 25, 2013 at 9:11pm*

**goverment**

America’s founders envisioned a _________________________ that was closer to the government of ancient Athens than to the political system found in America today
*Monday, June 24, 2013 at 9:14pm*

**FND 154 Fundamentals of Accounting**

Harwick Company Exercise 5-2 1. on April 5, purchased merchandise from Botham Company for $23,000, terms 2/10, net/30, FOB shipping point. 2. on April 6, paid freight costs of $900 on merchandise purchased from Botham. 3.on April 7, purchased equipment on account for $26,000. ...
*Monday, June 24, 2013 at 8:16pm*

**physics**

A uniform meterstick pivoted at its center has a 80.0g mass suspended at the 28.0cm position.At what position should a 80.0g mass be suspended to put the system in equilibrium?What mass would have to be suspended at the 90.0cm position for the system to be in equilibrium?
*Monday, June 24, 2013 at 7:20pm*

**Physics**

An object whose mass is unknown is held by two rigid rods. The whole system is at rest. The angle between the vertical direction and the left rod from point A to B is 60 degrees. The angle between the vertical direction and the right rod from point C to D is 30 degrees. The ...
*Monday, June 24, 2013 at 2:53pm*

**Physics**

if the power developed is 290 ft lb/s for 12.8s what is the work done on the system?
*Sunday, June 23, 2013 at 11:23pm*

**physics**

A space vehicle is coasting at a constant velocity of 24.9 m/s in the +y direction relative to a space station. The pilot of the vehicle fires a RCS (reaction control system) thruster, which causes it to accelerate at 0.338 m/s2 in the +x direction. After 53.7 s, the pilot ...
*Sunday, June 23, 2013 at 3:12pm*

**physics**

A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's initial velocity and acceleration are v0x = +3.2 m/s and ax = +1.9 m/s2. The y components of the puck's initial velocity and acceleration are ...
*Sunday, June 23, 2013 at 2:50pm*

**maths**

The real numbers x and y satisfy the nonlinear system of equations {2x2−6xy+2y2+43x+43yx2+y2+5x+5y==174,30. Find the largest possible value of |xy
*Sunday, June 23, 2013 at 9:42am*

**world geography**

1. When Australia became the federated Commonwealth of Australia in 1901, Sydney and Melbourne competed to be the capital city. A compromise was reached and _______ became the federal capital in 1928. A. Canberra B. Brisbane C. Adelaide D. Sydney 2. According to the World ...
*Saturday, June 22, 2013 at 5:37pm*

**hum111**

How can an athlete manipulate his or her endocrine system function to enhance athletic performance? What might be some risks of doing so?
*Friday, June 21, 2013 at 2:26pm*

**math**

The real numbers x and y satisfy the nonlinear system of equations 2x^2−6xy+2y^2+43x+43y=174 x^2+y^2+5x+5y=30. Find the largest possible value of |xy|.
*Friday, June 21, 2013 at 1:49am*

**Math 116**

identify the solution (s) of the system of equations, if any. -3x-4y=2 8y=-6x-4 a. infinitely many solutions b. (-16/9, 5/6) c.(-2/3,0) d. no solution
*Friday, June 21, 2013 at 12:29am*

**Math 116**

Identify the solution (s) of the system of equations, if any. 2x+4y=11 y=5-5x a. (2.5,-0.5) b. (2.5,0.5) c. (-0.5,2.5) d. (0.5,2.5)
*Friday, June 21, 2013 at 12:26am*

**Math 116**

Identify the solution (s) of the system of equations, if any. x+3y=5 6x-6y=14 a. (3,3/2) b.(3,2/3) c.(3/2,3) d. (2/3,3)
*Friday, June 21, 2013 at 12:24am*

**Math 116**

Identify the solution(s) of the system of equations, if any. -6x-2y=12 4y=-12x-24 a. no solution b. (0,-2) c.(-2,0) d.infinitely many solutions
*Friday, June 21, 2013 at 12:21am*

**Math 116**

Consider the following system of equations. y=2x-2 y-2x=9 What can you conclude about the system of equations? a. The system of equations is inconsistent. b. The system of equations is dependent. c. The system of equations is independent. d. none of these.
*Friday, June 21, 2013 at 12:19am*

**Accounting Math**

A standard costing system is the traditionally used costing system. It has two main purposes: cost control and product costing. Standard costs are determined by accountants working together with other employees of the organization. Which employees outside of accounting do you ...
*Thursday, June 20, 2013 at 10:41am*

**math**

The real numbers x and y satisfy the nonlinear system of equations 2x^2−6xy+2y^2+43x+43y=174 & x^2+y^2+5x+5y=30. Find the largest possible value of |xy|.
*Thursday, June 20, 2013 at 6:48am*

**Boolean expression Help asap PLEASE**

A control system is needed to alert an attendant for the following situation. Which of the following is the Boolean equation expressing the electronics you would need? Either the tank is filled and the pump is on, or the tank is empty. (Use A = tank filled, B = pump on, X = ...
*Wednesday, June 19, 2013 at 10:44pm*

**Physics (Intro)**

Initially, a spring-mass system completes 20.0 vibrations in 5.0 seconds, with a 2.0 cm amplitude. The same mass is pulled 5.0 cm away from the equilibrium position, then released. What will the frequency be?
*Wednesday, June 19, 2013 at 8:26pm*

**microprocessors **

The value 000001112 is sent to Port B of an Eblock system where an LED module is connected. Which LEDs are on?
*Wednesday, June 19, 2013 at 5:22pm*

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