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

92,096 questions, page 462
1. art

he is a artist I am at work, and have done much, but I wish I had eight pairs of hands and another body to shoot the specimens.

asked by love of this country on February 27, 2011
2. physics

How does pressure work as a restoring force to create a sound wave?

asked by John on April 6, 2011
3. math

To square 75, one can multiply (70)(80) and add 25 to that product. Can someone explain how this would work, without calculating?

asked by Jenny on May 3, 2013
4. Chemistry

What mass of pure silver would you obtain from 85.0 g of AgNO3? My work The answer i got is 53.55 g Am i right?

asked by Peace on November 23, 2014
5. english

I posted my work a few minutes ago, can somebody check it for me please. thanks a lot. Rose

asked by rose on March 25, 2008
6. physics

Compare the work that a 22-kW car engine does in 60 seconds if its efficiency changes from 100% to 75%.

asked by chen on August 4, 2014
7. 6th grade science

which of the following is made of many cells that work together? a. bacteria b. virus c. insect d. amoeba

asked by Kate on December 13, 2011
8. chemistry

What mass of AuCl3 contains 160.9 g of gold? My work i got 104.6 g is that correct

asked by Sammy on November 24, 2014
9. math

there are 36 carpenters in a crew. on a certain day, 29 were present. what percent showed up for work?

asked by sonia on August 10, 2013

what is the complete subject , a person must have very good eyesight to work with beads.

asked by joshua on August 20, 2009
11. physics

what is the work done in moving a positive charge 12UC across two points 6cm apart

asked by Vibez on March 26, 2017
12. biology

why does the knee jerk reflex work for someone with spinal cord injuries?

asked by homework on March 5, 2017
13. Pre cal

determine the function f whose graph is given the vertex is (3,-13) and the y intercept is -4 how whould i work this out

asked by shelly on January 30, 2014
14. psychology

Why do negative emotions make it hard to learn or work toward a goal?

asked by Brittney on August 24, 2014
15. English

Write an. Argumentative essay for the motion, boys should not work in the kitchen

asked by Silas on November 2, 2017
16. Grammar

A number of small bruises __________ present upon examination. A) was B) were I say it's B, but it could also A because they both work.

asked by Marie on November 14, 2012
17. Resume(English)

is it okay to stretch the truth or "pad" ur resume? -only if ur applying to work for governement -yes -no -sometimes would it be No?

asked by Anonymous on January 25, 2011
18. science

If you do 60-0 J of work hoistig a 2kg bale of hay, to what height did you lift it?

asked by Tyra J on October 9, 2007
19. Art

True or false: Monet created the majority of his work in his own garden.

asked by Hyper Shadic on February 21, 2016
20. Science

how much work is done on a 50kg cart that is pushed 10m at a constant rate of 5m/s^2

asked by Sue on February 28, 2017
21. Science

How much work do you do when you push a shopping cart with a force of 50N for a distance of 5M

asked by Leana on April 4, 2015
22. Algebra

simplify (6x^-2)^2(0.5x)^4 I think I know the answer is 2.25 but my work is wrong my teacher said and I need to get this right so plz any help is fine

asked by MrHarbold on February 3, 2016
23. Geometry

Find the coordinates of the missing endpoint given that S is the midpoint of line RT. T(-4,3), S(1-,5) How do you work this out?

asked by Jillian on August 19, 2009
24. Geography

1. Which pair of basic question guides geographers in their work (1 point)

asked by Emily on November 7, 2017
25. Math

"Find the slope of the line passing through J(0,5) and K(-1,2)" I did the problem but I just need someone to check if its right. my work: M= y2 - y1 -------- x2 - y1 M= 2 - 5 ----- -1 - 0 M= -3 ---- -1 M= 3 Thank you.

asked by Kylee on March 4, 2014
26. Discrete Math

Let g(x)=3x^2+14x-15. Determine if g is one to one or onto. A. g:N->N B. g:R->R If You can help me with this problem showing all work that would be greatly appreciated. Thank You

asked by Sara on March 28, 2008
27. math

To square 75, one can multiply (70)(80) and add 25 to that product. Can someone explain how this would work, without calculating?

asked by Jenny on May 3, 2013
28. math

The product of 3^4*3^-2 is so I multiplied the exponents and got 4*-2 =-8 so my answer is 3^-8 Is this correct? Thanks for checking my work

asked by B8 on January 26, 2014
29. chemistry

to find the molarity of an aqueous solution of an ionic solid what do you need to know? a... mass of solid, formula of solid, volume of water b...moles of solid, formula of solid, volume of water c....mass of solid, formula of solid, volume of solution

asked by Anna on November 30, 2010
30. ALG2! WORD PROBLEM! PLZ HELP!!

A business wants to give each of its employees a free ticket to the amusement park and has budgeted \$1200 for tickets. 1. Write and solve an inequality to find the maximum number of 1-day, adult tickets that can be bought. When you round your answer,

asked by tyneisha on November 28, 2012
31. ALG2! WORD PROBLEM!very important!!

A business wants to give each of its employees a free ticket to the amusement park and has budgeted \$1200 for tickets. 1. Write and solve an inequality to find the maximum number of 1-day, adult tickets that can be bought. When you round your answer,

asked by tyneisha on November 30, 2012
32. World History

I need help finding examples of imperialism in today's world? And then explain why is it an example of imperialism.I need to use these examples to write an essay. CAN ANYONE PLEASE GIVE ME SOME IDEAS. PLEASE HELP THANKS ALOT Thank you for using the Jiskha

asked by Tam on May 26, 2007
33. physics

A firefighter at street-level, 55.0 m away from a burning building, directs a stream of water from a fire hose at an angle of 35.0° above the horizontal. If the speed of the stream is 50.0 m/s, at what height will the stream of water strike the building?

asked by micole on May 16, 2007

PLEASE CHECK MY ANSWERS please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated

asked by anna on January 31, 2014
35. Chemistry

What volume of each of the following bases will react completely with 25.00 mL of 0.200 M HCl? a) 0.100 M NaOH b)0.0500 M Sr(OH)2 c)0.250 M KOH please explain and show detail I'm so lost on this problem... thanks!

asked by Chantelle on July 5, 2016
36. math

Use the limit definition of the derivative to find f′(x) if 1. f(x) = x^2 + 3x 2. f(x) = 1/x + 1 now what i am confuse with is that there is no value given for x. So how is one suppose to do these problems. please show steps and this is just the 3rd

asked by catherine on September 13, 2010
37. Earth Science

Use angular momentum arguments to describe why a parcel of air moving from the equator towards the North Pole will be deflected to the east. It may be helpful to show equations in your response. THANKS

asked by Sarah on November 20, 2014
38. Math And Physics HELP

A particle P of mass m=1 moves on the x-axis under the force field F=36/(x^3) - 9/(x^2) (x>0). Show that there is a single equilibrium position for P and that it is stable. Find the period of small oscillations about this point.

asked by Dwayne on May 3, 2011
39. help

help me show me a drawing of a large paint brush or a dust pan brus hplease I'm totally stuc kandh ave a mean Art

asked by Elie-may on October 6, 2008
40. geography

Which continents does the Tropic of Cancer pass through? North America, Africa, and Asia----Is that correct? If it is not can you direct me to a better website for a map that is clearer then the one I looked at to show me this answer?

asked by Reed on November 14, 2010
41. electronics

Find the value of the remaining components of a common emmitter single stage amplifer circuit given Ic=3mA, Tr=ZTx300, hfe=80, F=40Hz, Ve=2.5, Vcc=8v show workings

asked by kaycee on March 20, 2016
42. Lang Arts

Which sentence uses the past form of an irregular verb??? a My friend is keeping a journal b Adan has seen that show twice** c Elsa gave me this book d We listened to the weather report

asked by Anonymous on November 20, 2017
43. SCIENCE CAN ANYONE HELP

A.) Show how vertical multiplication can be used to do a charge balance if Zn2+ combines with Cl- b.) Write the chemical formula name for the compound that would be formed I've been waiting for hours and I haven't even received any help...

asked by Anonymous on March 9, 2014
44. Organic chemisty(Please check)

When drawing a kekule structure for CH3CH2OH(alcohol) do I leave the OH at the end just like it is (OH) or would it be shown as O-H? I know that to start of it would be -C- with an H on the top and the bottom as well as the left side and then connected to

asked by Hannah on September 11, 2012
45. History

Which of Roosevelt’s early New Deal programs illustrate his willingness to experiment with bold, innovative ideas? Which of his actions show his hesitation and attachment to conventional values?

asked by Leslie on June 4, 2012
46. science

calculate the following(show steps): volume of a fish tank that is 15cm by 30cm by 10cm? http://www.math.com/tables/geometry/volumes.htm

asked by jenna on June 21, 2006
47. Maths

I'm really getting stuck, I've spent a day trying to figure this out, but don't understand. Please could someone help me. Eph = hcT/b I need to rearrange to make b the subject and show and express each term as base SI units

asked by Amanda on January 18, 2016
48. Physics

An astronaut of mass 120 kg recedes from her spacecraft by activating a small propulsion unit attached to her back. The force generated by a spurt is 30 N. Show that her acceleration is 0.25 m/s2.

asked by Deidre on September 15, 2013
49. Language arts

Which sentence uses the past form of an irregular verb 1.my friend is keeping a journal 2. Adam has seen that show twice 3. Elsa gave me this book 4. We listened to the weather report I think it’s 3

asked by Anonymous on December 20, 2017

Which words of the singer in "The Weary Blues" show his communication about life? "I's gwine to quit ma frowning" "And put ma troubles on the shelf"

asked by mickey on April 25, 2017
51. math

Okay I got this question on a test. I am not sure what I am supposed to do here. Can you show me how I would go about solving this. A basketball player can jump 33in vertically. Find his hang time. Round to the nearest tenth. Thanks

asked by jose on June 6, 2010
52. Earth Science

Use angular momentum arguments to describe why a parcel of air moving from the equator towards the North Pole will be deflected to the east. It may be helpful to show equations in your response.

asked by Sarah on November 20, 2014
53. Science calculations

An airplane must achieve a velocity of 71 m/s to takeoff. If the runway is 1000 m long, at what speed must the plane constantly accelerate? Can you show the formula for how you found the answer and explain how to do it.

asked by Gabby on February 5, 2008
54. science

An astronaut of mass 120 kg recedes from her spacecraft by activating a small propulsion unit attached to her back. The force generated by a spurt is 30 N. Show that her acceleration is 0.25 m/s2.

asked by angie on September 15, 2013
55. algebra 3-4

im in a cal class but were reviewing algebra stuff now. and i have 1 more questions. it says. express the given quantity as a single loragithms 2ln4-ln2 so is it 2ln(2) please tell me if im getting the right answers and if im not then please show me how to

asked by thu on September 26, 2007
56. MATH AND PHYSICS HELP HELP HELP HELP HELP

A particle P of mass m=1 moves on the x-axis under the force field F=36/(x^3) - 9/(x^2) (x>0). Show that there is a single equilibrium position for P and that it is stable. Find the period of small oscillations about this point.

asked by Dwayne on May 3, 2011
57. Chemistry

0.22g of a hydrocarbon (compound of C & H) on complete combustion with oxygen gave 0.9 g of water and 0.44g carbon dioxide. Show that these are in accordance with law of conservation of mass.

asked by Karamjit singh on May 7, 2018
58. Trigonometry

Find all x such that 0< = x

asked by John on October 22, 2013
59. MATH AND PHYSICS HELP HELP HELP HELP HELP

A particle P of mass m=1 moves on the x-axis under the force field F=36/(x^3) - 9/(x^2) (x>0). Show that there is a single equilibrium position for P and that it is stable. Find the period of small oscillations about this point.

asked by Dwayne on May 4, 2011
60. statistics

For the data in the following table, select a type of display and describe the steps that you would take in developing it to show the relationship between age and deaths/1000 people from car accidents:

asked by Anonymous on October 21, 2010
61. english

Please show me this, on a A4 sheet paper paste a cutout of a picture of earth and write 8 adjectives in capital letter inside rectangular block( any coloue ink)

asked by laly on August 22, 2013
62. english

show me a letter to an editor of your local newspaper opposing the veiw expressed by one of its journalists that the popular music of your country is full of sound and fury meaning nothing

asked by tc on October 27, 2008
63. physics

plz help Two particles of mass m and M Undergo uniform circular motion about each other at a seperation R under the influence of an attractive force F . The angular velocity is w (Omega) radians per second. Show that R=(F/w)(1/m+ 1/M).

asked by yasin on December 17, 2013
64. science!

i want you to review the (3)descriptions and the (4)questions and correct my answers of this worksheet called Scientific Method Bikini Bottom Experiments. tank you tutors for reviewing the descriptions and questions and correcting my answers. The Bikini

asked by anon on September 15, 2015
65. Econ MC

Dick owns a dog whose barking annoys Dick's neighbor Jane. Suppose that the benefit of owning the dog is worth \$500 to Dick and that Jane bears a cost of \$700 from the barking. Assuming Dick has the legal right to keep the dog, a possible private solution

asked by Anonymous on March 17, 2007

Perform the indicated operations and simplify the result. Leave your answer in factored form. 1) x/16 - 1/x all over 1 + 4/x A) x+4/16 B) x-4/16 C) 16/x+4 D) 16/x-4 E) -16/x+4 I chose answer C. I saw this as x^2-16/ x+4. Multiply the following using the

asked by Hannah on September 9, 2010
67. chemistry

which of the following compounds contains the lowest percentage by mass of nitrogen? 1) NH4NO3 2) (NH4)2 SO4 3) NaNO3 4) NH3 can someone please help me??what method should i use?how do i do this? Find the molar mass of each compound by adding the molar

asked by Emma on May 27, 2007
68. chemistry

You are a workstudy for the chemistry department. Your supervisor has just asked you to prepare 500mL of 3M HCl for tomorrow's undergraduate experiment. In the stockroom explorer, you will find a cabinet called "Stock Solutions". Open this cabinet to find

asked by Lauren on April 1, 2019
69. rate of change

A missile rises vertically from a point on the ground 75,000 feet from a radar station. If the missile is rising at the rate of 16,500 feet per minute at the instant when it is 38,000 feet high, what is the rate of change(in radians per minute) of the

asked by Jen on December 10, 2006

pls.hep me to solve tjis problem.. is anyone willing to solve please. PROBLEM 1: On Jan 1, 2011, the Rhiri, Brit & Keisha partnership is formed. Rhiri and Brit contribute cash of \$30,000 and \$20,000 respectively, while Keisha contributes assets with the

asked by jessie on June 4, 2011
71. Water - Math Question

This question is related to water footprint calculation. I have no idea how to go about this, if anyone could point me in the right direction, I'd be forever grateful! Background info: The water footprint of the resident of a Blue Sea riparian country (92

asked by Allison on October 19, 2013
72. algebra/materials engineering

what phases are present in a slow cooled 1090 stell and how much of each of these phases are present? so the phases are cementite and pearlite and it's hypereutectoid. The formula is hypereutectoid=cementite(6.67%)+pearlite(0.8%) I know in a 1090 steel,

asked by Anonymous on October 18, 2010
73. MTH233/statistics UOP

Industry 1980 1997 Agriculture 290 727 Mining 994 586 Construction 4,473 5,513 Manufacturing 21,165 18,633 Transportation 4,623 6,247 Trade 20,258 28,813 Finance and Insurance 5,295 7,367 Services 17,186 37,380 • • The table above shows the number of

asked by sue on July 22, 2010
74. English

1. Dick and Terry started to raise money. 2. Dick and Terry started to collect money. 3. We are rasing money for charity. 4. We are collecting money for charity. 5. We are raising volunteers to do the work. 6. We are collecting volunteers to do the work.

asked by rfvv on April 1, 2016
75. Math

The organizers of of a walkathon get cost estimates from two printing companies to print brochures to advertise the event. The cost are given by the equations below, were C is the cost in dollars and N is the number of brochures. Company A: C = 15 + 0.10n

asked by David on September 13, 2011
76. Math

The organizers of of a walkathon get cost estimates from two printing companies to print brochures to advertise the event. The cost are given by the equations below, were C is the cost in dollars and N is the number of brochures. Company A: C = 15 + 0.10n

asked by David on September 13, 2011
77. Chemistry (CHEM)

Can someone explain the electrical conductivity of melted and of aqueous solutions of ionic compounds. An explain it using the characteristics of ionic compounds. ThankS A Whole lot.. In Advance I suggest you go to the site recommended by Ms.Sue. Here is a

asked by Brittany on November 14, 2006
78. chemistry

Aluminum reacts with sulfuric acid, which is the acid in car batteries. If 20.0 grams of Al is placed into a solution contain 115 gram of H2SO4, how many grams of hydrogen ga could be be produced? 2Al + 3H2SO4 ---> Al(SO4)3 + 3H2 20.0g/27 = .741 .741 X 3/2

asked by mike on May 15, 2007
79. history

I'm stuck between two answers on this question, and was wondering if someone could help me out. My textbook isn't really clear on the answer either, so I will highlight parts of the paragraphs I read that led me to the answers I'm stuck on. I'd really

asked by Meeha on December 29, 2009
80. finance math

Richard purchased a car for \$39,905. He made a downpayment of \$15,000 and paid \$614 monthly for 45 years. Find the APR. Richard was able to payoff the loan at the end of 30 months. Using the Actuarial method find he unearned interest, and payoff amount. My

asked by Latrice on April 12, 2016
81. Chemistry-need help ASAP

15 ml of 3.0 M NaOH are added to the following: 500.0 ml of pure water 500.0 ml of 0.1 M formic acid 500.0 ml of 0.1 M formate of potassium 500.0 ml of a solution containing 0.1 M formic acid and 0.1 M formate of potassium. Calculate the difference of pH

asked by Sam on April 14, 2014
82. Essay Check

This is an essay about the article called Rambo's of the road, could you please read it and see if I am getting there? It is supposed to be a critique. Note: This is not a spellcheck or proofread, I just want someone to read it and tell me if it is alright

asked by HM on September 11, 2011
83. English

1. I thought of other names but I was not satisfied with any of them. 2. I thought of other names but I was satisfied with none of them. (Are both the same?) 4. I always watched him "working" when I was young. (Did "I" watched him working for some time?)

asked by rfvv on May 1, 2016
84. Chemistry

Can you explain the process for solving this problem (this one is more complicated than the example in our book): A solution contains both I^- and Cl^-, each at a concentration of 3.0x10^-2M. What concentration of Pb^+2 is required to precipitate the

asked by Lacey on February 19, 2007
85. COLLEGE

I need imput on what I have on social issues of human trafficking Human trafficking is a serious social issue around the world, because it violates human rights. The human and social issues of human trafficking can consist of: Physical abuse of victims,

asked by patiance on August 11, 2010
86. Finance

Bunyan Lumber LLC: Calculate when the company should harvest the timber Bunyan Lumber, LLC, harvests timber and delivers logs to timber mills for sale. The company was founded 70 years ago by Pete Bunyan. The current CEO is Paula Bunyan, the granddaughter

asked by Anonymous on April 12, 2010
87. Math.. help.

A bungee jumper leaps from the top of a building that is 420 feet tall and falls at an average rate of 95 feet per second. at the time of the jump, the elevator is at a height of 130 feet and rising at a rate of 3.6 feet per second. about how many seconds

asked by Rachel on January 7, 2007
88. math (opt) math 2

A flagstaff of placed at one corner of a rectangular playground 40m long and 30m wide. If the angle of elevation of the top of flag staff from the opposite corner of 30°, find height of the flagstaff. (The question is complete and I have cross checked the

asked by A GOODSTUDENT on September 10, 2016
89. Chemistry_DRBob222

Hello Dear I hope everything gorse very well. I did not get any respond from you. I render my solution to the problem over CO2 aq. + H2O ...> H2CO3 how much PH can be put at for the above-equation under P = 3600 psi, T= 190 oF, 0.208 liters fresh-H2O as we

asked by Ramtin on April 19, 2014
90. History

Woodrow Wilson, the 28th President of the United States, once said of Congress, “Congress in session is Congress on public exhibition, whilst Congress in its committee rooms is Congress at work.” Please answer the following questions about the quote:

asked by 2 + 2 = on November 13, 2018
91. english

what is the plural form of turkey. i think it is turkie am i right can somebody help me If you look up the word in a hard copy dictionary (as I did), you would find that the plural is turkeys. Looking it up yourself will get you similar answers more

asked by mario on July 25, 2007
92. geometry

The verticals of quadrilateral ABCD are given. Draw ABCD i'n a coordinate plane and show that it is a parallelogram

asked by Hayle on January 11, 2012
93. precalc review/calc

For the curve y=2^[sqrt(9-x2)], find the range of the function. I think the range is [0,8] but I don't know why. Could you show me how to get to that answer? Thanks.

asked by jane on September 3, 2012
94. value

A Biased Coin Is Such That The Head Is 4 Times More Likely To Show Up Than The Tail.What Is The Probability Of Obtaining A Head?

asked by Jonathan on November 30, 2016
95. Calculus Help Please!!!

show all of the algebraic steps in finding lim x->0 (sin2x)/(2x-tanx) I know the answer is 2 but I need the steps thank you!

asked by Uygur on April 7, 2014
96. Math

Iam re-posting the following questions and would appreciate if anyone could show the working. 1]Find lim sinx/2x x-->0 2]lim 3x^2-4x/7 x-->0

asked by Tania on August 22, 2011
97. Math

I have a similar problem The LCM of two numbers is 36. The GCF is 6. One number is 6 more than the other. The numbers are ------- and ------. If someone could show me how to do this one, I could figure out the other 5 I have to do (maybe) Thank you very

asked by Billy on February 25, 2014
98. algebra

I need to find the inverse of this function f(x)=9x+7 please show steps. The answer I got is not one of the multiple choices I have. The answer I got is f^-1 (x)=1/9x-7/9

asked by Alaska Diamond on September 26, 2013
99. physics

an object is at tower p. if Velocity at distance h below p is double then at a distance h above p then show that max height above p is 5h/3.

asked by armando on August 23, 2011
100. Pre Calc

visually show on compass/vector graph n 60 degrees w at 400 mph, n 40 e at 75 mph

asked by Beth on June 7, 2016