Friday

August 28, 2015
**Algebra Help!!**

Solve the given system by the substitution method. 3x + y = 17 5x -2y = 10
*Sunday, January 11, 2015 by slomo*

**Algebra help please!**

solve each system graphically. if a system has an infinite number of solutions, use set-builder notation to write the solution set. If a system has no solution, state this. y = 2 - x 2x + 2y = 4
*Sunday, January 11, 2015 by slomo*

**Algebra 1**

solve the system of equations using the substitution method. 8x-9=y, y-8x=-4
*Sunday, January 11, 2015 by slomo*

**Algebra 2**

Solve the system algebraically 2x^2-5y^2=1 x^2+5y^2=68 Please show work!!!
*Sunday, January 11, 2015 by Alicia*

**Algebra 1**

Where would the system below intersect on a graph? y=12x+15 y=15x I know that: x=5 y=75 But I need help on how to graph it.
*Friday, January 9, 2015 by Allie*

**Math**

1. Using the following system of equations : 4x +2x = 6 2x + y= 3 A: Find the solution(s) algebraically showing all work (4 pts) B: State whether it is independent consistent, dependent consistent, or inconsistent. (2pts) C: Demonstrate how to check the systems of solutions, ...
*Friday, January 9, 2015 by Cookie_Monster_*

**Algebra 1**

Translate to a system of equations. But do not solve. A nontoxic 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 45 ounces of floor wax? Let x ...
*Thursday, January 8, 2015 by slomo*

**Algebra**

Solve each system graphically. Be sure to check your solution.If a system has an infinite number of solutions, use set-builder notation to write the solution set.If a system has no solution, state this. 2x - y = 1 x + 2y = 3
*Thursday, January 8, 2015 by slomo*

**Algebra 1**

Solve each system graphically. Be sure to check your solution. If a system has an infinite number of solutions, use set-builder notation to write the solution set.If a system has no solution, state this. I tried this and found no solution, is this right? x + y = 9 x - y = 1
*Thursday, January 8, 2015 by slomo*

**Pre-Calc/Trig**

Complete the following for each system that involves one or more quadratic equations: Solve the system algebraically 7y^2-5x^2+20x=3 5x^2+21y^2=209
*Thursday, January 8, 2015 by Anonymous*

**physics**

A heavy table of mass M is vibrationally isolated by being hung from the ceiling by springs, so that its frequency of vertical oscillation is \omega_0 (take \omega_0 to be 2\pi/sec, a typical value). Assume now that the ceiling vibrates vertically with amplitude A at frequency...
*Thursday, January 8, 2015 by david*

**criminology**

What type of discretion might be exercised within the local police department? How does it "funnel" people into the criminal justice system or kick them out?
*Thursday, January 8, 2015 by Dee365*

**Algebra**

Determine if the ordered pair ( -5,2) is a solution to the following system of equations. x + 3y = 1 y = 3x + 17
*Wednesday, January 7, 2015 by slomo*

**mechanics and heat**

At the same instant that a 0.5 kg ball is dropped from 25 m above earth , a second ball , with a mass of 0.25 kg , is thrown straight upward from earth’s surface with an initial speed of 15 m/s . They move along nearby lines and pass without colliding. What is the ...
*Wednesday, January 7, 2015 by awash*

**mechanics and heat**

Four point masses are located at the four corners of a rectangle as shown in the figure. Calculate the total moment of inertia of this system measured from (a) axis 1 (b) axis 2 (c) axis 3, and (d) an axis that passes through A and perpendicular to the plane containing this ...
*Wednesday, January 7, 2015 by awash*

**Science**

1. Name the components of the respiratory system in the order incoming air would encounter them during breathing. trachea, pharynx, larynx, alveoli, bronchi bronchi, larynx, alveoli, trachea, pharynx larynx, trachea, bronchi, pharynx, alveoli pharynx, larynx, trachea, bronchi...
*Wednesday, January 7, 2015 by lol*

**phy**

A 10kg mass and a 2.0kg mass are connected by a light string over a massless, frictionless pulley. if g=9.8ms^-2, what is the acceleration of the system when released? (98ms^-2)
*Wednesday, January 7, 2015 by saima*

**Algebra**

I have been trying to solve this for two hours help. Determine whether the ordered pair (-5,2) is a solution of the following system of equations x - 3y = 1 y= 3x - 17
*Wednesday, January 7, 2015 by slomo*

**Algebra**

I can find no solution to this system of equations. Solve the system of equations using the substitution method 2x + 4y = -2 2x - y = 4
*Wednesday, January 7, 2015 by slomo*

**physics**

Two blocks are placed at the ends of a horizontal massless board, as in the drawing. The board is kept from rotating and rests on a support that serves as an axis of rotation. The block on the right has a mass of 5.4 kg. Determine the magnitude of the angular acceleration when...
*Tuesday, January 6, 2015 by genius girl *

**Civics**

Montesquieu's system of "separation of powers" means that Government is divided into three branches*** People are born with rights that can not be taken away. government may rule because the citizens consent people have the right to life,liberty, and property.
*Tuesday, January 6, 2015 by jeje*

**Civics**

Why did the framers of the constitution include the system of checks and balances? To ensure the powers of each branch of government are limited and checked by another branch To create a process for the American people to choose their representatives for government branches To...
*Tuesday, January 6, 2015 by jeje*

**Health**

Which of the following is the minimum level of structure needed to perform the function of waste removal? A. body system B. tissue C. cell D. organ C or A
*Tuesday, January 6, 2015 by dddd*

**Math**

Q. There is a hot hair ballon festival in System Springs. Seventy two gallons registered to participate,paying $25 each. Five of those who registered didn't show up and we refunded half of their money.mthree additional balloons showed up and paid the registration cost plus...
*Monday, January 5, 2015 by Destinee*

**Algebra**

system of equations, the sum of two numbers is 46. the first number is 3/20 of the second number is it x + y = 46, x = 3/20y?
*Monday, January 5, 2015 by slomo*

**algebra 1**

Which of the following points are solutions to the system of inequalities shown below? Check all that apply. y>4x + 2 y<4x + 5 A. (4, 21) B. (5, 24) C. (5, 26) D. (-4, 20)
*Monday, January 5, 2015 by jacky*

**History **

1. How is the Seven Years War related to the French and indian war? A- The French and Indian War directly caused the Seven Year's War B-; The French and Indian War was part of the Seven Year's War C- The Seven Years' War was more of a land war than the French and ...
*Sunday, January 4, 2015 by Elizabeth Meyer *

**Algebra 1**

Translate problem situation to a system of equations. Do not solve. The sum of two numbers is 10 the first number is 2/3 of the second number. What are the numbers? would it be 6, and 4? or 7, and 3? I know 2/3 of 10 is 6.66666667, so being after the decimal is higher than 5 ...
*Sunday, January 4, 2015 by slomo*

**Physics, Math, Aerospace, Engineering**

A de-orbit burn, similar (but not the same) to that presented in the previous math problem, has been performed. During this de-orbit burn a pre-calculated ∆V (delta V, change in velocity) of 99.1 meters per second will be used to decrease the Shuttle’s altitude from...
*Saturday, January 3, 2015 by Wolf*

**math**

solve the system algebraically and graphically 32x^2+9y^2=324 3y^2-x^2=3
*Saturday, January 3, 2015 by cary*

**Algebra**

Help!! I am having difficulty with a problem for hours now and if I could get some help, my head might stop pounding.Solve each system graphically. if a system has an infinite number of solutions, use set builder notation to write the solution set. If a system has no solution...
*Friday, January 2, 2015 by slomo*

**Physics**

A block and tackle with a velocity ratio of 5 is used to raise a mass of 25kg through a vertical distances of 40cm at a steady rate.if the effort is equal to 60N,determine.(a)The distance moved by the effort.(b)The workdone by the effort in lifting the load.(c)The loss in ...
*Thursday, January 1, 2015 by Rose*

**Chemistry*****

A mixture containing 19.8 moles of H2 and 7.2 mole of I2 was allowed to reach equilibrium in a 5 L closed vessel at ToC according to the equation: H2 (g) + I2 (g) 2HI (g) At equilibrium, 14 moles of H2 was present. The equilibrium constant for this reaction is denoted as Kc(1...
*Tuesday, December 30, 2014 by plasma membrane *

**Algebra 1**

What is the solution to the system y=10x-3 y=-7x+3 answers from 5/17, 16/17 4/17, 16/19 -5/17, 16/17 3/17, 5/17
*Tuesday, December 30, 2014 by Steve*

**Business**

I have already researched five areas of publicly available information (such as the Dow Jones or top search engine results) that help to establish the health and public image of a company. How do I propose a web-based information system that will interface with this ...
*Monday, December 29, 2014 by MissPatte*

**Algebra 1**

How many solutions does the system of equations have? 3x+12y=20 y=-1/4x+5/3
*Monday, December 29, 2014 by Steve*

**Math**

Solve the system of two equations 2y=8 and 15y=2x-4
*Sunday, December 28, 2014 by Anon*

**physics**

When relaxed, an elastic cord has length L, cross section area A, mass M, and Young modulus Y. An object of mass m is hung from the ceiling using the cord. The system reaches a steady state. What is the longitudinal mass distribution lambda(z) of the stretched cord as a ...
*Saturday, December 27, 2014 by aviva*

**Physics**

Station Math Two station astronauts will each perform two 8-hour EVAs within 13 days to repair a damaged solar panel that was impacted by a micrometeoroid on the space station. What is the total amount of oxygen needed by the two astronauts to accomplish this? Please put your ...
*Saturday, December 27, 2014 by Allison*

**physics**

Two bodies of mass 3kg and 4kg are suspended at the ends of massless string passing over a frictionless pulley .the acceleration system is
*Thursday, December 25, 2014 by prakhar*

**Chemistry**

What are the different ways to split a mixture of benzene and methanol into its constituents using a 2 phase system separation ?
*Thursday, December 25, 2014 by Henry*

**Algebra 1**

A local citizen wants to fence a rectangular community garden. The length of the garden should be at least 110 ft and the distance around should be no more than 380 ft. What system of inequalities would represent the possible dimensions of the garden?
*Wednesday, December 24, 2014 by Steve*

**Continuos Quality Monitoring and Accreditation**

Adverse Event Reporting Read Chapters 5, 6, and 7 in our textbook. After reviewing this week’s required reading, consider the following scenario: You are the lead of the risk management team that has been assigned to evaluate an incident that has occurred. You will be ...
*Wednesday, December 24, 2014 by Cai*

**Algebra 1**

How many solutions does then system of equation have? y-5x = -6 and 3y-15x=-12
*Tuesday, December 23, 2014 by Steve*

**Algebra 1**

How many solutions does the system of equation have? x-4y =12 and 5x-20y =60
*Tuesday, December 23, 2014 by Steve*

**Algebra 1**

How many solutions does the system of equations have? y=4x +3 and 2y-8x=3
*Tuesday, December 23, 2014 by Steve*

**Algebra 1**

How many solutions does the system of equations have? x=-4y+4 and 2x+8y=8
*Tuesday, December 23, 2014 by Steve*

**Earth science **

TRUE OR FALSE The burning of fossil fuels cause the earth to get warmer by putting carbon dioxide in the atmosphere and the carbon dioxide traps heat. MY GUESS: TRUE Isobars help meteorologists find fronts on weather maps. MY GUESS: FALSE A CLOUD IS A COLLECTION OF WATER ...
*Monday, December 22, 2014 by Elena*

**Math and Phyics**

Mass points M and m are kept at the vertices of an equilateral triangle whose sides are of length a. 1. Find the distance between the center of mass of the system and mas point m. 2.Determine the moment of Inertia of the system about the center of mass
*Monday, December 22, 2014 by Saraf*

**Algebra 1**

When solving a system of equations, how do you determine which method to use?
*Thursday, December 18, 2014 by Steve*

**math**

Please solve the system with the elimination method. Explain each step as it is performed. 5y = x 2x - 3y = 7 Would the elimination method have been your first choice to solve this problem?
*Thursday, December 18, 2014 by cathy*

**Algebra 1**

Which method would be the simplest way to solve the system? 7x +5y = 19 -7x-2y = -16 graphing substitution elimination or distributive
*Thursday, December 18, 2014 by Steve*

**Algebra 1**

In which quadrant does the solution ofthen system fall? y=x-1 y= -3x-5
*Thursday, December 18, 2014 by Steve*

**Algebra 1**

How many solutions does this system have? *3x + 6y = 10 -3x + 6y = -4
*Thursday, December 18, 2014 by Steve*

**math**

* not multiple choice* 2/3n = 8 solving the system of equations 4x + 3y = 13 y= -x +4 * not sure how to do this the slope intercept form of the function that contains the point (-3, 2) and has a slope of -2? my answer: y= -2x + 6 -1 + 5(6-y) my answer is -y + 29
*Thursday, December 18, 2014 by Anonymous*

**reimbursement**

New medicare payments systems and implementation of SC HI both came out to the? A. Balance budget act. B. Federal act 33-2 C. Retrospective payment system D. Health maintenance organization
*Thursday, December 18, 2014 by a*

**algebra**

The Kwon family has a rainwater catchment system they use to water their garden. After 3 days without rain, the depth of water in the tank is 63 inches. After 5 days, the depth is 57 inches. What will the depth of water in the tank be after 17 days?
*Wednesday, December 17, 2014 by mazzy*

**Math**

How many solutions does the following system have? { 16x - 8y=20 { 4x - 2y= 5 A. 0 B. 1 C. 2 D. Infinitely many
*Wednesday, December 17, 2014 by Anonymous*

**Cellular Anatomy/Integumentary and Musculoskeletal**

Which of the following is an accessory organ of the integumentary system?
*Wednesday, December 17, 2014 by Anonymous*

**Algebra **

Steve is driving to a ski resort. At first, he drove at a rate of 65 mph. Then a snow storm started and he had to slow down to 40 mph. In total. it took him 6 hours to drive 310 miles. Which system of equations represents this situation? A. 6x + y= 1 x + y= 310 B. x + y= 105 ...
*Wednesday, December 17, 2014 by Anonymous*

**Algebra **

How many solutions does the following system have? { 16x - 8y=20 { 4x - 2y= 5 A. O B. 1 C. 2 D. Infinitely many
*Wednesday, December 17, 2014 by Anonymous*

**Algebra **

To solve the following system of equations by elimination, which step would best to perform first? 1/2a - 1/4b = 1 1/3a + b= 3 A. Add the two equations. B. Subtract the two equations. C. Multiply the first equation by 4. D. Divide the first equation by 3.
*Wednesday, December 17, 2014 by Anonymous*

**math**

Solve the linear system graphically (Dont graph it just solve it) x+ 2y = 8 3x+ 4y = 20
*Tuesday, December 16, 2014 by Laura ♥*

**college student**

Two spheres of mass 2 kg and 3 kg are attached to the ends of a light rigid rod of length 1.0 m. What is the moment of inertia of the system about an axis perpendicular to the rod and (i) passes through the centre of the rod (ii) passes through the 2 kg sphere
*Tuesday, December 16, 2014 by saalim*

**Algebra 1**

suppose you can work a total of no more than 20 hours per week at your two jobs. Babysitting pays $5 per hour, and your cashier job pays $6 per hour. youneed to earn at least $90per week to cover your expenses. Write a system of inequalities that show s the various numbers of ...
*Monday, December 15, 2014 by molly*

**Any math tutor online? Help**

Two companies charge these rates for printing a brochure : Company A charges $175 for set up and 0.10 pet brochure Company B charges $250 for set up and 0.07 pee brochure A linear system that model this situation is C=175 + 0.10n C =250+ 0.07 Where c is the total A) graph the ...
*Monday, December 15, 2014 by Emmanuel*

**History 2**

the public school system in georgia was the result of laws passed during A. World War 1 B. The Civil War C. Reconstruction **** D. Antebellum
*Monday, December 15, 2014 by HELP MEEEEE *

**physics**

In the drawing, the weight of the block on the table is 428. N and that of the hanging block is 195. N. Ignore friction, the mass of the rope, and the mass of the pulley. Find the acceleration of the two block system in m/s2.
*Sunday, December 14, 2014 by Jill*

**Algebra**

Solve the following system of equations using the substitution method:5x-7y=-18 and 4x+3y=20
*Saturday, December 13, 2014 by Marie*

**History**

Word Box : Declaration of Independence US Constitution articles of confederation Federalist Papers Bill of Rights Washingtons Farewell Address, Albany Plan of Union, Olive Branch Petition 1.americas first government,weak, consisted of only legislative branch created during ...
*Saturday, December 13, 2014 by M*

**Physics**

A 3.32 kg mud ball has a perfectly inelastic collision with a second mud ball that is initially at rest. The composite system moves with a speed equal to one-eighth the original speed of the 3.32 mud ball. What is the mass of the second mud ball?
*Friday, December 12, 2014 by Anonymous*

**algebra**

Janel walks for x minutes and runs for y minutes for a total of 30 minutes of exercise. Ramal walks for 3 times as long as Janel but runs for half of the time she does for a total of 40 minutes of exercise. Is the system below correct for this situation? If not, why not? x + ...
*Friday, December 12, 2014 by Abigail*

**In**

ABC Company – Training Program ABC Company has 50,000 employees in its headquarters. The company wants to increase employee productivity by setting up an internal software applications training program for its employees. The training program will teach employees how to ...
*Friday, December 12, 2014 by desilva*

**Physic**

A grenade that is falling vertically explodes into two equal fragments when it is at a height of 2000 m and has a downward velocity of 60 m/s. Immediately after the explosion one of the fragments is moving downward at 80 m/s. Find the position of the second fragment and the ...
*Thursday, December 11, 2014 by kevin*

**Math**

An oil company owns two refineries. The daily production limits and operating costs for each refinery are given in the table below. An order is received for 1540 barrels of high-grade oil, 1650 barrels of medium-grade oil, and 2860 barrels of low-grade oil. How many days ...
*Wednesday, December 10, 2014 by LJ*

**physic**

A 7.28-kilogram bowling ball traveling 8.50 meters per second east collides head-on with a 5.45 kilogram bowling ball traveling 10.0 meters per second west. Determine the magnitude of the total momentum of the two-ball system after the collision
*Wednesday, December 10, 2014 by natsu*

**Physical Science**

Fill in the blanks using the correct term from the list below. Active Combustion free heating systems passive heat pump thermal energy stroke 1. A house with large windows on its south side and few windows on its other sides probably uses a(n) Blank solar heating system. 2....
*Wednesday, December 10, 2014 by Lindsey*

**physics**

Consider a system of a cliff diver and the earth. The gravitational potential energy of the system decreases by 21,000 J as the diver drops to the water from a height of 32.0 m. Determine her weight in newtons.
*Wednesday, December 10, 2014 by m*

**Biology **

"Emma has difficulty sleeping. Her doctor prescribes Deflex. Deflex is a drug which affects the nervous system. Suggest and explain how Deflex affects the nervous system to help Emma sleep." I have missed a lot of time off of school and I understand how the nervous ...
*Wednesday, December 10, 2014 by *

**Physics**

Silver pellets with a mass of 1.0 g and a temperature of 85°C are added to 200 g of water at 18°C. How many pellets must be added to increase the equilibrium temperature of the system to 24°C?
*Wednesday, December 10, 2014 by HELP*

**physics**

An amusement park ride consists of a rotating circular platform 8.09 m in diameter from which 10 kg seats are suspended at the end of 2.19 m mass less chains. When the system rotates, the chains make an angle of 14.8 ◦ with the vertical. The acceleration of gravity is 9....
*Tuesday, December 9, 2014 by Anonymous*

**Psychology**

Individuals who naturally exhibit low levels of brain arousal and nervous system reactivity are more likely to: A. Score high in measures of agreeableness B. Score low in measures of agreeableness. C. Score low in measures of sensation seeking D. Score high in measures of ...
*Tuesday, December 9, 2014 by Macy*

**chemistry**

The total phosphate concentration in a blood sample is determined by spectrophotometry to be 3.0×10−3 M. The pH of the blood sample is 7.45, What are the concentrations of H2PO4− and HPO42- in the blood? Pka for the phosphate system is 7.198
*Tuesday, December 9, 2014 by India *

**Physics**

A ball of mass m is attached to a spring with a spring constant k. The system is attached to a thin vertical axis as shown in Figure 4. In its equilibrium vertical position the spring length is L. The axis starts to rotate with a constant angular frequency ω. Find the ...
*Tuesday, December 9, 2014 by James*

**PChem**

For the gas phase reaction 2NO2 + F2 ¨ 2NO2F, the rate constant is k= 38 dm3/mol-s at 27 oC. The reaction is first-order in NO2 and first-order in F2. A) Calculate the number of moles of NO2, F2, and NO2F after 10.0 s if 2.00 mol of NO2 is mixed with 3.00 mol of F2 ...
*Tuesday, December 9, 2014 by Debora*

**physics**

Assuming 100% transfer of energy in the system, please calculate maximum KE (Kinetic Energy) that the rocket has if the rocket were to again a height of 25 meters. Rocket mass = 0.5 kilograms, and gravity = 9.8 m/s^2
*Monday, December 8, 2014 by Ella*

**physics**

A 75-g piece of aluminum at 89 °C is dropped in 1.0 L of water at 1.3 101 °C, which is in an insulated beaker. Assuming that there is negligible heat loss to the surroundings, determine the equilibrium temperature of the system
*Monday, December 8, 2014 by charles*

**Linear Algebra**

A hospital performs 3 types of operations. The first type takes 30 minutes, and they charge $500 for it. The second type takes 1 hour, and they charge $750 for it. The third operation takes 2 hours, and they charge $1000 for it. The hospital can schedule up to 30 total ...
*Monday, December 8, 2014 by Simplyh*

**linear algebra**

Bob and Doug play a lot of Ping-Pong, but Doug is a much better player, and wins 80% of their games. To make up for this, if Doug wins a game he will spot Bob five points in their next game. If Doug wins again he will spot Bob ten points the next game, and if he still wins the...
*Sunday, December 7, 2014 by jolia*

**linear algebra**

The weather on any given day in a particular city can be sunny, cloudy, or rainy. It has been observed to be predictable largely on the basis of the weather on the previous day. Specfically: if it is sunny on one day, it will be sunny the next day 1/2 of the time, and never be...
*Sunday, December 7, 2014 by jolia*

**intro to computers**

You call the help desk to report a problem you are having on your computer. The technician asks you what operating system you are running. You know it is Windows 7 but you forget which version. How can you find out?
*Sunday, December 7, 2014 by tiffany*

**statistics**

the hospital paper filing system contained 20,890 records. A total of 456 were identified as misfiled. What is the filing accuracy rate for the system? What is the percentage of misfiled records?
*Sunday, December 7, 2014 by Anonymous*

**Stats**

The Internal Revenue Service (IRS) provides a toll-free help line for taxpayers to call in and get answers to questions as they prepare their tax returns. In recent years, the IRS has been inundated with taxpayer calls and has redesigned its phone service as well as posted ...
*Sunday, December 7, 2014 by Avery*

**social studies**

1. which of the following staments would describe a reason why the confederation government was unable to help georgia solve its problems with the indians? it was too busy fighting foreign wars. the president would veto any action it took. it was a week system of government in...
*Sunday, December 7, 2014 by someone help i am new *

**chemistry**

A 5.00 liter vessel contains carbon monoxide, carbon dioxide, hydrogen and water vapor at equilibrium at 980C. The equilibrium partial pressures are 300. torr, 300. torr, 90. torr, and 150 torr respectively. Carbon monoxide is then pumped into the system until the equilibrium ...
*Saturday, December 6, 2014 by Anonymous*

**algebra**

use the elimination method to solve the system of equations. Choose the correct ordered pair. 2x+4y=16 2x-4y=0 A.(4,2) B.(2,4) C.(2,-4) D.(4,-2)
*Saturday, December 6, 2014 by regan*

**biology**

explain the vascular system in the lilac flower.
*Saturday, December 6, 2014 by MINNIE*

**Ap History**

Hi i had these questions wrong :/ The North and South held different views toward slavery in 1850. What were they? a) The North believed in a free labor system and the South believed in a slave labor system. b)The South believed that black people were inferior and the North ...
*Friday, December 5, 2014 by Quilla.*

**Biology**

what is the vascular system of the lilac flower. i tried finding some sites. some sites would help me. PLease!
*Friday, December 5, 2014 by Katherine*

**physics**

Assume that the Grand Bahama Island lies at the origin of the coordinate system shown in the diagram at below. Vector represents the hurricane's displacement at 44.5 km/h and vector represents its displacement after it shifts course three hours later and proceeds at a ...
*Friday, December 5, 2014 by pagan*