# 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 463
1. ## English

A word used to show the relationship between its object and some other word in the sentence is called a(n)_____ .

asked by george on January 11, 2010
2. ## physics

how do i find the net force 30-N and a force 20 to show forces opposite and both in the same diection?

asked by bobby h on October 12, 2012
3. ## Math

how to determine the rate of change of a graph if the graph does not show a staircase pattern?

asked by Anonymous on July 23, 2018

A fund drive announces that that it has raised $3,276 which is 70% of its goal. How much more must be raised? Can you show me how to do this? asked by Odessa on October 20, 2008 5. ## guess and check sheet denzil list starts with the light show. Could the list start with the space first? asked by shaniah on January 9, 2012 6. ## chemistry How many grams of NaNO3 are required to saturate 54 grams of water at 20 C( show steps ) asked by Ryan on November 8, 2010 7. ## math an ________ is a number sentences that uses an equal sign to show that 2 amounts are equal. asked by kay on October 15, 2007 8. ## high school algerbra class 2/x^2-4+3/x^2+x-6+1/x+3 Could someone help me with this fraction? I have tried to answer it over three days now without any luck. If anyone can help please show the steps,so I can see how you got the answer. Thanks in advance!!! asked by kenneth on August 24, 2010 9. ## Math The average giraffe is 18 feet tall. What expression show the height of the giraffe? asked by Shion on September 19, 2012 10. ## Science how many moles of oxygen atoms are there in 2 moles of CuS04?(4oxygen) please show calculations asked by John on February 8, 2009 11. ## Linear Algebra Let T : Rn-->Rn be a linear transformation, whose standard matrix is invertible. Show that if B = {v1, . . . , vn} is a basis for Rn, then {T(v1), . . . ,T(vn)} is also a basis for Rn. asked by Alex on April 26, 2016 12. ## linear algebra show that the only subspaces of R1 are 0 and R1 itself. okay , so I don't know if I'm making it more complicated than it is, but R1 is just a point right? so i don't know how i would prove this? asked by kirsten on February 15, 2015 13. ## Math Describe two ways to show the expression 5×3/4. My answer is. 15/4. 5×3/4. 5/1×3/4. I don't know how to write expression. asked by Deborah on July 27, 2016 14. ## Physics 2 Show that during the charging of the capacitor in an RC circuit, the charge of the capacitor, as a function of time, is: q(t) = C(1 – e-t/RC) asked by Robert on August 14, 2012 15. ## Math Stacy multiplied 5x9 and said the answer was 44.what two patterns could you use to show that her answer is not correct? asked by Tonya on February 4, 2013 16. ## Math Stacy multiplied 5x9 and said the answer was 44.what two patterns could you use to show that her answer is not correct? asked by Tonya on February 4, 2013 17. ## A level Mathematics Show that the tangents to the curve X=ln((y^2)-6y+11) ,at the points where X=ln6,meet at the point ((ln6)-(4/3),3) asked by karl on September 5, 2009 18. ## Calculus At 2:00 PM a car's speedometer reads 30 mi/h. At 2:10 PM it reads 50 mi/h. Show that at some time between 2:00 and 2:10 the acceleration is exactly 120 mi/h^2. asked by bryan on March 4, 2013 19. ## maths sir damon reiny or steve help!steve see Given u(x, y) = x^2 + 2y where x (r, t) = r sin(t) and y(r,t) = sin^2(t), determine the value of ∂u / ∂r and ∂u / ∂t using the chain rule. Plz show step asked by payuto on March 15, 2017 20. ## Algebra Please show me step by step in finding the center and the radius of the circle, then graphing if possible: (x-3)²+y²=6 Thanks asked by sandy on December 2, 2012 21. ## calculus Show that the series(−1)^n−1(bn) where bn = 1/(n^1/2) if n is odd and bn = 1/2^n if n is even, diverges. Why does the alternating series test fail? asked by amber on July 31, 2011 22. ## maths Show that the tangents to the curve X=ln((y^2)-6y+11) ,at the points where X=ln6,meet at the point ((ln6)-(4/3),3) asked by karl on September 5, 2009 23. ## Algebra(please help ASAP!) This is a little difficult... Graph the Function y=3 less than the absolute value of x+2 Obviously you cannot show me this on a graph, but I just need help with solving the equation... Thanks!!! asked by Jackie on November 11, 2015 24. ## calculus Show that the equation x+3sinx=2 has a root between 0.4 and 0.6.express the root to four significant figures asked by farouk on November 15, 2011 25. ## precalc 4^log16 (7) the base of the log is 16. 4 is being raised to the entire log16 (7). show all steps please! asked by help! on April 4, 2016 26. ## Biology I have to do a paper on the parts of a cell, it can be anything, like a t.v. show script, but I don't have any ideas, does anybody have any ideas? asked by Holly on February 23, 2009 27. ## Dividing Decimals I need Help with solving these problems. If you could show me the steps I think I will be able to get it. 1) 0.87/0.2 = 4.35 2)4.4/0.3 = 14.66 3)5.0/5.5 = 0.90 I got the answer by Calculator but when I do it myself I don't see how they got the answer. asked by Rina on March 14, 2011 28. ## Math Which is the best type of graph to show the number of markers in each classroom, if markers come in boxes of 20? asked by Coco on May 11, 2015 29. ## math help 4,9,x,37 is a quadratic sequence (a)show that x=20 (b)determine the nth term of the sequence thanks in advance asked by happy on June 4, 2015 30. ## math Help please select the approcimate values of x that are solutions to f(x)=0 where f(x)=-5x^2+8x+5 I so am lost please show me step by step asked by * HOPELESS on March 16, 2014 31. ## math ergent please 3. Factor x^4-3x^3-11x^2+3x+10 completely using the factor theorem. (5 marks) SHOW ME ALL THE STEPS PLEASE. asked by kavi on November 26, 2013 32. ## Chemistry Draw a simple model of an atom to show the position of each of the comstituents of the atom. asked by Shamsuddeen on November 30, 2011 33. ## Math I am having a hard time with this integral question. Can someone show me how to do this. Thank you. Evaluate the indefinate integral x^2(3x-1)dx asked by Amy on May 14, 2008 34. ## algebra Multiply. (2n^2+5n+4)(2n-4) (explain it to me) A. 4n^3-2n^2+28n-16 B. 4n^3+12n^2-2n-16 C. 4n^3+2n-12-16 D. 4n^3+18n^2-28n-16 please show me how you found it! asked by PLEASE HELP ASAP on May 22, 2015 35. ## Describe how you would make 250 mL of 0.500 M HCI Describe how you would make 250 mL of 0.500 M HCI from 12.1 M HCI. Show calculations. asked by Anonymous on April 4, 2011 36. ## Algebra 1 There are 15 members of the show choir. In how many ways can you arrange 4 members in the front row? asked by Anonymous on May 2, 2013 37. ## Math If I put 4,736 marbles into groups of 100, how many groups would I have? Show how you figured it out. asked by Camoren on September 23, 2013 38. ## Algebra need help in solving by substitution. We all have different steps and all arrive at 3 different ordered pairs. please help and show the steps for 7x+6y=15 and -7x+y=27. Thanks asked by Team A on September 14, 2010 39. ## math the equation of line L1 is 2y-5x-8=0 and line L2 passes through the points (-5,0) and(5,-4). show that the two lines are perpendicular asked by Anonymous on November 19, 2018 40. ## Trig Could someone please show me how 1 / ( 4 tan (x/2) + 2 ) is converted to: (- sin (x/2) /( 2 sin (x/2) + cos (x/2)) TIA Carol asked by Carol on January 3, 2011 41. ## Algerbra 1 B Simplify the radical expression. Show all your steps. \sqrt{363} -3 \sqrt{27} asked by Anon on April 12, 2018 42. ## @Steve RE: Relative Extrema: AP Calculus Thanks so much for all your help! That was way simpler than I thought, I think I was just overthinking it. Do you think you could also help me find the concave up at x = −2, x = −1, and x = 2 and show f(x) is concave down at x = 0? (this is still for asked by Pax on January 23, 2015 43. ## math stacy multiplied 5x9 and said the answer was 44. what two patterns could you use to show that her answer is not correct? asked by tom on April 5, 2011 44. ## Calculus Can someone show me a step by step process, along with explanations on how to do this problem? Thank you. :) Evaluate the integral ∫ [(x^2 - 1)/(x^2 + 1)]dx? asked by Aria on February 9, 2015 45. ## algebra y=(v/u)x+(g)/(2(u^2))*x^2 where y is the object's vertical distance (in feet) above from where it was thrown x is the object's horizontal distance (in feet) away from where it was thrown and u is the objects' initial horizontal velocity v is the object's asked by Geoff on July 19, 2013 46. ## Physics A train car with mass m1 = 591 kg is moving to the right with a speed of v1 = 7.3 m/s and collides with a second train car. The two cars latch together during the collision and then move off to the right at vf = 4.7 m/s. a. What is the initial momentum of asked by MUHAMMAD JUNAID on March 26, 2019 47. ## statistics In prior investigations made by a local Gas and Electric Company, 65% of homeowners prefer to heat with gas instead of electricity. In a recent study of 200 homeowners 60% prefer heating with gas. In a two tailed test at a .05 level of significance can we asked by Nikki on April 26, 2011 48. ## Science HELP! I need to do a science project this year and have no clue what to do. The project has to follow the scientific method. Please give me some good ideas! I don't care what subject, as long as they're scientific. Thanks asked by Margaret on August 21, 2006 49. ## nutrition Created a nutritional care plan for the client. Included an evaluation of nutritional risk, listing of interventions, and expected outcomes. Listed the goals of medical nutrition therapy for the patient and suggested an appropriate diet. Identified whether asked by lulu on May 14, 2015 50. ## College Chemistry The density of a 0.0122 M KMnO4 is 1.037 g/mL. Suppose 26.35 g of 0.0122 M KMnO4 are required to titrate 1.072 g of a household H2O2 solution. a)Calculate the mL of MnO4^- added to reach the endpoint. b)Calculate the moles of MnO4^- added to reach the asked by Kelsey on February 25, 2014 51. ## Programming Write a java method that will take two sorted stacks A and B (min on top), and return one stack D that is sorted (min on top). You are allowed to use only the stack operations such as pop, push, isEmpty and peek. Example: suppose A={(top)1,4,7,9} and asked by ahmad on March 31, 2017 52. ## Business Mgmt. I need to write a paragraph on Identifying the demographics and characteristics of my customer( or consumer). What the customer needs will my product attempt to meet? My product or business is a shoe company that sells for all ages and all shoes sizes. asked by Tess on November 13, 2006 53. ## Math grade 5-6 Alice works part-time after school. On Monday, Alice records that she worked three and two-sixth hours. On Tuesday, Alice records that she worked one and seventy-five hundredths hours. On Wednesday, Alice records that she worked two and two-thirds hours. asked by Lemi on December 7, 2015 54. ## Math grade 5-6 Alice works part-time after school. On Monday, Alice records that she worked three and two-sixth hours. On Tuesday, Alice records that she worked one and seventy-five hundredths hours. On Wednesday, Alice records that she worked two and two-thirds hours. asked by Lemi on December 8, 2015 55. ## Chemistry If very small concentrations of NaCl and AgNO3 are mixed, no precipitate forms. However, if large concentrations are mixed, a white precipitate forms. Can someone tell me a method for testing the hypothesis that "insoluble" salts would dissolve to some asked by Sarah on February 12, 2012 56. ## Chemistry If very small concentrations of NaCl and AgNO3 are mixed, no precipitate forms. However, if large concentrations are mixed, a white precipitate forms. Can someone tell me a method for testing the hypothesis that "insoluble" salts would dissolve to some asked by Sarah on February 26, 2012 57. ## Physical Science two people pull on separate ropes attached to a cart. the angle between the ropes is 90 degrees and one person pulls with a force of 200 newtons while the other pulls with a fore of 400 newtons. find the resultant force and direction using the asked by Janet on March 24, 2010 58. ## Mathematics A company manufactures two products X and Y by means of two processes A and B. The maximum capacity of process A is 1750 hours and of process B 4000 hours. Each unit of product X requires 3 hours in A and 2 hours in B, while each unit of product Y requires asked by Anonymous on August 19, 2015 59. ## chemistry Write the compound formulas for each of the following pairs and the name of the compound formed when the elements or radicals combine. Mg+2 + OH-1 K+1 + PO4-3 Cu+2 + S-2 N+5 + O-2 Compounds have zero charge. Therefore, for magnesium hydroxide, the first asked by jessica on March 19, 2007 60. ## Precalculus How can I type this equation in the graphing calculator? y=pi(25-x)^2 • 2x Note, the 2x is NOT multiplied by 2.. Show how I can type this in .. Parantheses and other notions ...... asked by Anonymous on May 29, 2014 61. ## Math Steps of calculations that show the simple interest on a R5000 loan for 3 years at 9 percent interest asked by Belinda on February 21, 2016 62. ## Math Use the Intermediate Value Theorem to show that there is a root of the given equation in the specified interval. cos x = x. How do I begin this problem? According to the theorem, a=0, b=1 and N=x? asked by KC on September 2, 2012 63. ## Algebra Show the similarities between dividing two fractions and dividing two rational expressions using examples of each; explain your steps asked by Alexander on August 18, 2008 64. ## Math The curve y=x^3-3x^2-8x+4 has tangent L at point P (1,-8). Given that the Line M is parallel to L and is also a tangent to Q show that the shortest distance between L and M is 16 root 2 Thanks asked by Jodis on May 12, 2018 65. ## History Federalists: supporters of the Constitution What would an example be for that? Do I have to make up any example to show what Federalists are or do I have to use in real life things that have happened asked by M on October 29, 2014 66. ## English Why Jake spend his time try to forget everyone? That be because his family not have proper relationship with him before so they not show him love and now he not know how to love so he want to be alone. asked by Mohammad on February 14, 2012 67. ## calc Use the Mean Value Theorem to show: -x < sinx < x for all x > 0 (and where I have the inequalities, it's supposed to be less than or equal to for the first two and greater than or equal to for the last one, I just didn't know how to type it) asked by nate on November 3, 2011 68. ## Algebra In a dog show, there will be a gold and a silver medal awarded. There are 4 finalists. In how many different ways can the 2 medals be awarded? asked by Anonymous on August 3, 2017 69. ## English show your understanding of literary and non-literary prose by citing examples and discussing them. 450 words asked by Ansila on March 22, 2012 70. ## maths grade 05(nelson chapter 1 lesson 2.c) i have a table which has a question that says: extend the table to show seven the recipe . write a pattern rule for each column asked by sheeba.l on September 22, 2009 71. ## Present Value simple interest 11% interest$186.00 interest paid 140 days what was the orginal amount please show calcualtion

asked by Janine on February 18, 2011
72. ## economics

With illustrations, show how the study of business economics helps a business manager in decision making?

asked by bobby on October 27, 2010
73. ## ochem lab

this deals with TLC chromatography: if 2 compounds have same Rf under identical conditions, does it show that they have identical structures? i think it does. but im not sure why. thanks mucho.

asked by christine on November 2, 2007
74. ## Algebra

If you end a game of football with 78 yards. Your l;st 2 runs were -7 & -5. Show an expression of how many yard he had before those last 2 runs. My answer is 78 -5 -7

asked by Faye on August 23, 2014
75. ## math

show that the equation x^2+2xy+y^2+x+y-2=0 rebresent two paralil lines and find the equations of thos lines

asked by korain on June 6, 2011
76. ## PHYSICS

A ball is projected horizontally with a velocity of 2.5m/s. Find its position and velocity after one second. pls show ur workings.

asked by PEACE on March 29, 2016
77. ## math

x^2 – a^2 is called a difference of squares. Assuming one factor (the divisor) is (x – a), show by polynomial division that the other factor is (x + a)

asked by Anonymous on August 29, 2012
78. ## Economics/Stats

I have data on unemployment over the past 15 years for three different groups. I would like to show that there is more volatility in several of the groups than there is in the other. What tests should I run?

asked by Ben on February 26, 2008
79. ## A Raisin in the Sun

In what way does Mama show herself to be stronger than her children? (Please check the following): Mama is willing to give up her dream for the good of the family.

asked by Anonymous on September 3, 2007
80. ## Maths: Sequences need help

The nth term of a sequences of v1,v2,v3 is given by Vn=6 2^n (1):show that for all value of n>1 Vn1=2(Vn-3)?? (2): obtain and simplify the sum of the first n term of the sequence??

asked by Collins on September 26, 2015
81. ## Science

What are 3 facts that show ticks have a parasitic relationship with deer? 1..Ticks live on the skin of animals

asked by Hayden on September 18, 2014
82. ## Polynomials/Math

x^2 – a^2 is called a difference of squares. Assuming one factor (the divisor) is (x – a), show by polynomial division that the other factor is (x + a)

asked by Anonymous on August 28, 2012
83. ## trigonomery

Show that the following statement is true by transforming the left side into the right side. sin θ tan θ = csc θ

asked by arezo on February 7, 2013
84. ## Chemistry

Show the steps necessary to transform the compound on the left into the acid on the right (CH3)3CCH2BR ------------------>(CH3)3CCH2C(=O)OH

asked by Arthur on November 1, 2012
85. ## help maths partail sum

find the partial sum and the limiting sum of the following infinite series 1/4+1/10+4/18.... show step got no ideal at all

asked by dam on May 5, 2016
86. ## maths

The perimeter of a farm in a shape of a square is 3,5km what is the length of 1 side the farm ?show all calculations

asked by Cindy on July 27, 2011
87. ## Mathematics

If 1) a b 0 , 2) 0 a b , 3)b 0 a =0, Where 1) ,2),3) represents the three rows of a (3*3) matrix which is equal to 0) show that a/b is the cubic root of (-1). I took b outside the matrix to get, b* {1) (a/b) 1 0 2) 0 (a/b) 1 3) 1 0 (a/b) } I don't see a

asked by Aanya on June 26, 2017
88. ## algebra 2

Write a polynomial function that has the zeros 2, -2, and -1 and has a leading coefficient of 1. Then graph the function to show that 2, -2, and -1 are solutions.

asked by danni on May 25, 2010
89. ## chemistry

Write balanced equations to show the thermal decomposition of calcium nitrate and sodium nitrate.

asked by Sabrine on July 26, 2017
90. ## Math

can someone show me a step by step guide converting this please 2.483 X 10^-7 pm^4kg/s^2 to dam^3mg/day^2

asked by jake on February 2, 2010
91. ## Math

This website show the graph just copy and paste Translate triangle ABC 3 units right and 2 units down. A.(-4,-2) B.(0,-2) C.(1,-1) D.(1,3)

asked by Kit-Kat on February 9, 2018
92. ## Geometrical Formula Help

Hi! Can anyone please send me a link or show me how to find a formula that will find any point between two other points? Thank you, your help is greatly appreciated :)

asked by Lena on January 13, 2007
93. ## chemistry

show how 500ml of 2M H2SO4 can be prepared from a bottle of the acid with 95% purity(H=1, S=32, O=16, specific gravity of H2SO4 is 1.82

asked by stephanie on April 6, 2019
94. ## English- A Raisin in the Sun

I'm stuck on these in A Raisin in the Sun: Why does Mama decide not to move? In what way does she show herself to be stronger than her children? I'm stuck, please help!

asked by Anonymous on September 1, 2007
95. ## Math

Determine whether the statement is true or false. Explain or show why. If a natural number is divisible by 7, then it must also be divisible by 21

asked by Anonymous on October 4, 2009

need to draw floor plan of my room and home I have to use my map story to show me example how do I draw my desk ??

asked by Evan on February 26, 2011
97. ## senn high school

Please wite a paragraph (5sentences)to show you comprehend what analogies and idioms are.Use at least one analogy and one idiom in the paragraph?

asked by jacky on June 29, 2012
98. ## biomath

given lengths of the a rectangle are x and y show that the greatest rectangle having a perimeter of 200 cm square and thus find at area

asked by niati on April 9, 2011
99. ## Calc

Evaluate the integral or show that it diverges: Integrand 0, lower, to 3, upper, (1/x)dx. a. infinity b. negative infinity c. 0 d. ln 3 e. none of the above

asked by Darren on January 25, 2013
100. ## maths

show that the radius of right circular cylinder of maximum volume that can be inacribed in a sphere of radius 18cm is 8√6

asked by Anonymous on March 16, 2017