# Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

91,718 questions, page 445
1. ## physics

how much negative work is done by friction on a 2000-kg car if you slow down from 20 m/s to 10 m/s?

asked by Anonymous on September 21, 2012
2. ## Science

What is the relationship between the mass of the counterweight and the amount of work done on the projectile?

asked by faith on April 24, 2019
3. ## history

the six major concluding principles Mendel hypothesized from his work

asked by Anonymous on October 31, 2009
4. ## Physics

Find the work done in stretching the spring. Answer in units of J

asked by Patrick on December 14, 2012
5. ## Physics

The work done on an object with a mass of 50 kg raised 3 meters is ________ Nm.

asked by Amber on March 2, 2011
6. ## physics

A 5kg mass was lifted 365cm, how much work was done against gravity?

asked by Jennifer on December 4, 2012
7. ## math

asked by Tshenolo on February 25, 2011
8. ## physics

How much work will a net force of 56·N west do on the cart as it moves 1·m?

asked by Anonymous on October 26, 2010
9. ## to Miss Sue

Miss Sue who are you? Do you work for this website or do you have nothing else to do? Just asking because my Mom says I should not trust you.

asked by Searah on November 11, 2009
10. ## arithmetic

If you have the terms 64, 49, 36, 25, 16, 9, 5, and 1 what equation will work to find the nth term?

asked by Anonymous on September 19, 2011
11. ## physic

what is equation for total work and final kinetic energy

asked by yokzo on December 13, 2009
12. ## Algebra

4 This is hard for me to understand how to work them... What is the simplified form of the product [(x^2 + 8x + 15)/(x-4)] * [(x^2 – 16) / 2x + 6)]

asked by Sandra on April 9, 2014
13. ## Pre- Algebra

Can you graph these equations for me so that I can figure out how to do them? 1). Y=4x-3 2). 4x-5=2x-y 3). Y=1x1+4 4). X+5=2x-7 Can you explain your work?

asked by Sherrie on November 19, 2011
14. ## math

Bob does 2/7 of a book in 1 hour.how long will he take to do the remaining work?

asked by Ahmed on June 16, 2015
15. ## English

work at start had been very strenuous.(turn into negative sentence)

asked by pulak on October 29, 2011
16. ## calculus 2

find the indefinite integral showing all work. x^3(x^4-11)6dx

asked by sean on February 16, 2012
17. ## chemistry

How does a straw work? Using the Kinetic Molecular Theory to explain?

asked by Selena on May 31, 2012
18. ## math

Write the expression without using the factorial symbol. (n+1)!/(n-1)! my work: (n+1)!/((n+1)(n-1)!) =1/(n-1)? Thanks in advance.

asked by sh on March 29, 2009
19. ## Math

Question: 1/2(x+3) + 5x = 2 - 4/3 (1-2x) My work: 5 1/2x + 3/2 = 2/3 + 8/3x 33x + 9 = 4 + 16x 17x = -5 x = -17/5 Did I do this correctly?

asked by Mason on February 21, 2015
20. ## physics

how much work is done if a force of 12N moves an object a distance of 5m

asked by princess on December 8, 2016
21. ## Chemistry

What mass of AuCl3 contains 160.9 g of gold? My work i got 104.6 g Am i right?

asked by Freedom on November 23, 2014
22. ## biology

how does reverse osmosis work to purify bottled water?

asked by Anonymous on November 18, 2010
23. ## science

How much work is required to lift a 3.7-kg concrete block to a height of 2.7 m?

asked by ashley on September 3, 2010

Evaluate: l-x^2l (x - y) + (x^3 + y) If x + 8 = 3 and y = 3_ \l 8 Is the answer -202? I did it in the calculator but forgot how to work it out

asked by Sarah on January 20, 2014
25. ## Multiply write the result in scientific notation.

Its only practice work but I NEED the extra points. These are the problems I am having trouble with: (9*10^4) (8*10^6)

asked by nonononono on May 30, 2014
26. ## science

i am doing a science project and i need to kno how flares work, and what the ingredients are. can someone help me?

asked by logan on May 3, 2009
27. ## Sports

When was the most recent work stoppage in major league baseball?

asked by confused on March 27, 2008
28. ## Physics

How much work must be done to stop a 1250 kg car traveling at 105 km/h?

asked by Emily Grossman on February 23, 2011
29. ## physics

how long does it take a 19kW steam engine to do 6.8x10^7 J of work?

asked by yo on February 28, 2010
30. ## Grammar

Which version of this word is correct? School work or schoolwork?

asked by Anonymous on April 5, 2014
31. ## Algebra 2

Could someone check my work? Thanks. P(-3) = 4×^3 - 5x^2 + 7x -10 -12^3 + 15^2 - 21 - 10 -1728 + 225 - 31 -1503 - 31 = -1534

asked by Spring on March 19, 2019
32. ## algebra 1

change the equation x-y=4 to the form y=mx+b I will be happy to critique your work on this. y=x+4

asked by kim on April 4, 2007
33. ## algebra 1

in the equation y=3x-4, a point on the line is I will be happy to critique your work on this. When x is zero, what is y? (1,-1)

asked by kim on April 4, 2007
34. ## physics

How much work must be done to stop a 1200 kg car traveling at 135 km/h?

asked by Anonymous on February 28, 2010
35. ## English

What do you think about (him,his) being chosen as class president. Both seem correct to me. Is it his? If not, what makes it work here?

asked by LearningAgain on January 24, 2019
36. ## Physics

How much work is required to stop an electron (m= 9.11 * 10^-31 kg) which is moving with a speed of 1.80×10^6 m/s?

asked by Eden on October 17, 2010
37. ## Algebra

I have to find the zeros of f(x) = x^2 + 2x-5 can someone start me off so I have an example to work from for the rest of my problems-thank you for your help

asked by Annie on September 21, 2011
38. ## math

how do i work this problem 8x25x23 using subtraction in mental math

asked by john on October 14, 2014
39. ## intermidiate algebra

converting to LCD 3/4b^-9, 2/2b+3, -5/2b^-3b that sign over the "b"represent 2 I have to work this problem so help me.

asked by Keaton on May 16, 2010
40. ## Physics

You carry a 20 n box 5 m horizontally across a room. The work you do is? Is 4 J correct?

asked by Karen on September 21, 2011
41. ## Physics

When going up stairs does a person who has more mass do more work and exert more power?

asked by Taylor on February 9, 2015
42. ## Computer programming

What and how does a visral generator operates and work.i'm an armateur!kindly help

asked by Malosky on July 7, 2011
43. ## Science

How much force was used to move a box 42m if 13,734 J of work was done on it?

asked by Jake on November 16, 2012
44. ## science

scientists often use----to better see how something work? a) models b)data c) procedures d) hypothesis

asked by michelle on April 20, 2012
45. ## Factoring

2x^2+3x-7 i cant find a zero to use synthetic division with this. They don't work. What am I doing wrong? Thanks!

asked by Rebekah on October 30, 2012
46. ## Science

How much work is done in moving a 25lb. load a distance of 7 feet?

asked by Alexander on February 10, 2017
47. ## science

What did Boyle have available, which the Greeks did not, that made his work scientifically valid?

asked by melanie on August 14, 2008
48. ## math214

I need help I have not done math work over 15 years In the figure, L is parallel to m, and m(

asked by alicia on February 17, 2010
49. ## physics

. Two positive point charge of 12 μC and 8 μC are 10 cm apart. The work done in bringing them 4 cm closer is,

asked by shayna on November 14, 2016
50. ## bobpursley

ok heres my work for one of the questions. sorry is taking long to upload them. h t t p : / / i 3 7 . t i n y p i c . c o m / 2 n k 4 9 7 c . j p g

asked by Claudia on October 15, 2008
51. ## physics

How much work must be done to stop a 1070 kg car traveling at 111 km/h?

asked by mathew on February 7, 2015
52. ## Physics

What is the work done when a force of 30Newtons moves through a distance of 20Meters?

asked by Prisca on December 8, 2016
53. ## math

how do you work this problem: 16^(1/2) on paper, without using a calculator. Ans. is: 4 Thanks, Edna

asked by Edna on December 7, 2012
54. ## physics

how long does it take to do 432 joules of work with 75 watts of power?

asked by michelly on November 20, 2010
55. ## Buisness Ethics

Identify and explain a situation where you have seen Machiavelli's framework at work

asked by Michael on August 28, 2012
56. ## calculus trig substitution

∫ x^3 √(x^2+9) dx If you work it can you write the steps? I really don't like the way my teacher teaches it. Someone else doing it might help.

asked by Allie on March 14, 2015
57. ## human resources

Identify and explain a situation where you have seen Machiavelli's framework at work

asked by Michael on August 28, 2012
58. ## physical science

How do you work a vector problem? (f= m(a) )I am so confused you wouldn't understand!!! :(

asked by Anonymous on August 28, 2012
59. ## physical science

if 34,560 j of work was done with a force of 960 n, how far was the object moved?

asked by Bobby on November 16, 2012
60. ## physics

How much work is required to lift a 5.2-kg concrete block to a height of 3.1 m?

asked by kim on September 17, 2016

A 5-kg rock is lifted 2 meters in 5 seconds. How much work is done? How much power is done?

asked by Lindsey on February 12, 2009
62. ## moral science

chart work for effects of pure and impure water

asked by shree on August 25, 2012
63. ## physical

C.How much work does the ride do to lift theriders up to a height of 50 meters?

asked by Anonymous on November 19, 2010
64. ## history

if you are riding a horse do you live or work in the peidmont region,why or why not?

asked by chanquilla on February 19, 2010
65. ## physics

How much work must be done in stopping a 3,000 kg truck traveling at 60 mph?

asked by Steve on May 24, 2009
66. ## Calculus

what is the limit as x goes to 1- of (arcsin(x) - pi/2 ) / sqrt(1-x) ? I tried using L'Hopital's and it doesn't work.

asked by Shaniquaa on December 1, 2008
67. ## science

how much work is done by a crane that lowers 1000N of material 150m?

asked by liz on February 19, 2010
68. ## psychology 210

Consider how employers and fellow team members could use this instrument at work.

asked by MIKE THOMPSON on November 29, 2008
69. ## Art History

How does Perugino's work represent the ideas of Humanism and the Renaissance?

asked by Becca on September 17, 2011
70. ## Calculus II

Find the derivative of 5^(x^3+x) I know the answer, it's: 5^(x^3+x)*ln(5)*(3x^2+ 1) I just need some help on how to derive that. What rule is at work here? where did the ln come from?

asked by Jamie on August 4, 2017
71. ## Physics

How much work is done in accelerating a 2000 kg car from rest to a speed of 30 m/s?

asked by Lesley on February 27, 2011

Well, then what's the best homework website for tutors who work via e-mail, so that they can take a look at my art and help me?

asked by Anonymous on November 8, 2009
73. ## Written Communication

Your local bank made a mistake on your printed checks. Additionally, the bank charged you for the checks, even though the order was supposed to be complimentary for customers opening a new account. How would you draft a letter that follows your irritation

asked by Mimi on June 24, 2007
74. ## College Algebra

A new employee at a sales company is offered one of three different possible salary packages, A, B and C. The new employee will work 15 hours per week. Package A: \$105 for the 15 hours of work each week. Package B: \$60 plus a commission of 8% of all sales

asked by Mang on November 28, 2014
75. ## writing sentences and paragraphs

Paragraph 1 Background You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to evaluate your writing skills. The paragraph must

asked by Help Me on September 18, 2012
76. ## 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

asked by Dee on February 22, 2014
77. ## 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

asked by Dee on February 23, 2014
78. ## chemistry

As an ionic solid dissolves in water, the temperature of the solution increases. What best describes the enthalpy and entropy of the solution? A. The enthalpy change is negative, and the entropy decreases. B. The enthalpy change is negative, and the

asked by Cortney on March 18, 2015
79. ## chemistry

As an ionic solid dissolves in water, the temperature of the solution increases. What best describes the enthalpy and entropy of the solution? A. The enthalpy change is negative, and the entropy decreases. B. The enthalpy change is negative, and the

asked by Cortney on March 19, 2015
80. ## chemistry

Hello! Please correct me if I'm wrong. For the following compound, predict whether the solution is acidic, basic, or neutral and why: NH4Cl. a) acidic, NH4Cl is the salt of a weak base b) neutral because there is no hydrolysis c) acidic, NH4Cl is a strong

81. ## AP Bio Lab

the water potential of a solution is equal to the osmotic potential plus the pressure potential. Since there is no differential pressure acting on the solution, the pressure potential is equal to 0 making the water potential equal to the osmotic potential.

asked by Simone on October 2, 2008
82. ## English 1 (Help)

The Ants and the Grasshopper One fine day in winter some Ants were busy drying their store of corn, which had got rather damp during a long spell of rain. Presently up came a Grasshopper and begged them to spare her a few grains. The Ants stopped work for

asked by Bobby Newberry on October 18, 2017
83. ## English

Thank you very much. I still have a few questions. 1) Your sentences are confused and sometimes disconnected. Check the spelling in the dictionary before writing a word and make sure you are using tenses correctly. 2) White people failed (their mission)

asked by Franco on November 28, 2010
84. ## English Lit

I need help on proof reading this story. Christmas should be a time of celebrating the birth of Christ, but it seems like people make it more about themselves and what should they get for each other and who’s gift is more expensive or how we can compete

asked by Leila on April 2, 2010
85. ## child day care

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

asked by Tinkk on March 30, 2015
86. ## Chemistry

In aqueous solution, hydrochloric acid, HCl, and sodium carbonate, Na2CO3 react to produce gaseous carbon dioxide, CO2, water, H2O and sodium chloride, NaCl. A 10.0 g impure sample of Na2CO3 is dissolved completely in water; then treated with 3.00 mol

asked by Olivia on June 15, 2014
87. ## capital markets

Hi can anybode help me in this question....With one numerical example show how government bonds are priced and their yields are calculated, and also explain how they provide the benchmark for the cost of funds for other borrowers?

asked by URATA on May 11, 2008
88. ## english

Hoe do I write 5 sntenes that show what role education plays in financial sucess. I must have one with past, present, future, progressive, and perfect tenses.

asked by Marilyn on June 4, 2010
89. ## Math

Find all the zeroes of the polynomial function f(x) = x^3-5x^2 +6x-30. If you use synthetic division, show all three lines of numbers. plss help I asked my friends but they don't know either homework question

asked by katt on December 11, 2017
90. ## Physics

The total U.S. consumption of electricity in a particular year was 5.0 x 1012 kilowatt-hours. What is the mass equivalence of this amount of energy? Show all calculations leading to an answer.

asked by Lexi on December 4, 2015
91. ## Math And Science for Young Children

sking the children to construct a graph to show how many beans have sprouted is an example of the process skill of: A. communication. B. predicting. C. inferring. D. classifying. Is D the correct answer

asked by Tonya on January 9, 2016
92. ## Chemistry Help

Which direction will the reaction 2NO + O2 2NO2 move if the initial partial pressure of all the species present is 0.50 atm? Show the calculation of Q to support your answer.

asked by Anonymous on November 26, 2012
93. ## college math

sam bought 1 of 250 tickets for \$2 in a raffle with the prize of \$400. Was \$2 fair price? Can someone show me the formula on how to get this answer. My text is super confusing.

asked by Lauren on December 1, 2009
94. ## Creative Writing

Describe two advertisements (print, radio, or television) that have had a great effect on you. Be sure to discuss how you think the advertisers were able to influence you. What methods did they use that caught your attention? can someone please show me

asked by y912f on November 22, 2009
95. ## Language Arts

What does Johnny’s mastery of riding Goblin show about his character? A. He is rash and quick-tempered. B. He is brave and determined. C. He is immature and selfish. D. He is arrogant and proud

asked by Anon on January 21, 2015
96. ## math

Money is deposited in an account for which the interest is compounded continuously. If the balance doubles in 6 years, what is the annual percentage rate? Can someone show me how to set this up? I have to use the equation: M(t)= Ce^(kt). Thanks.

asked by ciara on February 24, 2010
97. ## english

PLEASE SHOW ME THE PROPER PLACES TO PUT THE COMMAS IN THIS SENTENCE: Athens a city in Greece named after Athena the Greek goddess of war and wisdom

asked by Sydney on April 7, 2008
98. ## Science (Asap)

Month temperature(degrees fahrenheit) January 13 February 20 March 31 April 46 May 59 June 68 ------------------- A.What is the range of the data for these six months? show or explain how you got your answer

asked by Frances on May 2, 2011
99. ## AP Chem

I am really having a hard time with this question. Which of these compounds will exhibit optical isomerism? Show why. a) CH3CH2CONHC2H5 b) CH3-CH-NO2 CH2-COOH i don't even know where to begin.

asked by Christopher on December 16, 2007
100. ## Statistic

An airline experiences a no-show rate of 6%. What is the maximum number of reservations that it could accept for a flight with a capacity of 160, if it wants the probability of accommodating all reservation holders to be at least 95%.

asked by Anonymous on January 25, 2013