# 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 461
1. ## 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
2. ## 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
3. ## 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
4. ## accounting please help urgent

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
5. ## 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
6. ## 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
7. ## 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
8. ## 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
9. ## 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
10. ## 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
11. ## 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
12. ## 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
13. ## 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
14. ## 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
15. ## 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
16. ## 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
17. ## 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
18. ## 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
19. ## 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
20. ## algebra

Determine the number and type of roots for each equation. thanks inadvance can u please show mw step by step thanks 2X(X+2)=-2

asked by john on October 7, 2013
21. ## 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
22. ## chemistry

Can someone show me a website that talks about spectrums of elements. Including why they're all different, like basic information of spectrums. The why, how, and what.

asked by astrid on November 12, 2009
23. ## chemistry

how would the loss of magnesium oxide effect the ratio of magnesium to oxygen? and could you please show me the calculations ,, and thank you

asked by wifaj on January 22, 2009
24. ## 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
25. ## Help!

I was wondering if someone could show me how to post links on this website. It gives me an error when I try to post a link in my reply.

asked by Don on January 5, 2009
26. ## algebra

Find all roots of the equation z^5 = i, i.e. ﬁnd the ﬁve values of i^1/5 and show them on an Argand diagram.

asked by Carrolyn on May 27, 2014
27. ## chemistry

What is the expression and numerical value for the equilibrium constant for the following: Ag+ + Cl- = AgCl(s) using the Ksp= 1.8*10^-10 of AgCl please show how its calculated.

asked by S on March 10, 2010
28. ## Maths of class 9

P and q are points on side CD of a parallelogram ABCD. Show that area of trianglePAB =area of triangleRAB

asked by Abdullah on November 25, 2016
29. ## Geometry

Trying to find the scale for a 77 centimeter by 53 centimeter painting to fit on a 8.5 by 11 inch paper. Please show me how-

asked by RR on February 2, 2014
30. ## Discrete Mathematics

Suppose a0, a1, a2 ,... is a sequence defined recursively as follows: a1 = 1, a2 = 2, a3 = 3 and ak = ak-1 + ak-2 + ak-3 for all integers k > 3. Use strong induction to show that an < 2n for all integers n ≥ 1.

asked by Vevea Tepou on October 25, 2012
31. ## Algebra

write an expression to show the difference of twice X and 3 then find the value of your expression if x equals negative 2 Help again pls

asked by Chandler on August 26, 2015
32. ## math

the difference between two numbers is 5 the average of the number is 11 show a organized list to find the number

asked by victoria on March 1, 2010
33. ## MS 300

Suppose a and b are positive integers. Write a proof by contradiction to show that if a-b is odd,then a+b is odd.

asked by ugh! on October 5, 2009
34. ## english

please write a paragraph to show you comprehend what analogies and idoms are. use at least one analogy and one idom in the paragraph

asked by janice on July 19, 2012
35. ## Calculus 3

Find the limit, if it exists, or show that the limit does not exist. lim of x+y/y^2-x^2 as (x,y) approaches the point (-1,1).

asked by Anonymous on March 2, 2012
36. ## Algebra II

Translate this equasion 2 units left and 4 units up: 9x^2+ 3x+ 10= 16y^2+ 154+ 3x please show me all of the steps. thank you

asked by Tina on May 23, 2011
37. ## algebra 2

help please!! state the possible rational zeros for each function. then find all zeros. y=x^3-13x^2-x+13 show all the step please .thanks

asked by lisa on January 9, 2013
38. ## Algebra II

Determine if the binomial is a perfect square binomial. If so, show the original monomial squared. X^2 + 16 X^2 + 4

asked by Anonymous on February 9, 2017
39. ## 6th grade math

You have 3 sandwich wraps. Show 3 different ways to cut the wraps to feed 9 people equally

asked by cici on September 2, 2010
40. ## 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
41. ## statistics

A company is trying to show that their wages are fair. The mean salary is \$45,000 but the median is \$67,000. Which should they use for their position?

asked by anoneemose on January 19, 2013
42. ## algebra

George has 25 marbles. he wants to divide them into two amounts hat show a ratio of 2:3 how many marbles are in each group?

asked by Katie on April 27, 2014
43. ## advanced functions

Show that tanx = sinx / cosx can be written as tan(x+y) = (tanx + tany) / (1 - tanxtany)

asked by - on November 8, 2009
44. ## Calculus 3

Find the limit, if it exists, or show that the limit does not exist. lim of x+y/y^2-x^2 as (x,y) approaches the point (-1,1).

asked by Anonymous on March 4, 2012
45. ## Science

Show that in a SIGN the phase difference between displacement and velocity is 90°and between displacement and acceleration is 180°

asked by Riya on February 14, 2018
46. ## Chemistry

How many grams of product are formed from 2.0 mol of N2 (g) and 8.0 mol of Mg(s)? Show all calculations leading to an answer.

asked by Robi on August 20, 2015
47. ## Math

How do I show model to multiply 0.16*0.5? I did try by shading .16 over 0.5 but it giving me .10 answer. I need my answer 0.08. Plz help me what I am doing wrong.

asked by Lauren on September 6, 2017
48. ## poetry

Can somebody list some poems that is considered as a "Poetry Survivor" (a best poem that relates to the TV show "Survivor"

asked by Jessica on October 28, 2010
49. ## Aviation

I love airplanes; can you show me where to download Flight Simulator 2004 (I want to pretend to use airplanes)?

asked by Anonymous on October 16, 2008
50. ## Math

You have 17fourths of pizza. Show with math or pictures how many pizza you have. 4 pizzas with 1 slice left. 4

asked by Alison on August 27, 2014
51. ## geometry

show that the quadrilateral formed by joining the mid -points of the sides of a square is also a square.

asked by selva on October 13, 2008
52. ## Bionomial expansion help agn #thanks

find the third term of the binomial expansion (root(x)+1/root(y)^6 plz help i do not no it at all show working!!

asked by Collins on January 4, 2016
53. ## adv functions

Show that tanx= (sinx/ cosx) can be written as: tan(x-y) = (tanx - tany) / (1+ tanxtany)

asked by - on November 7, 2009
54. ## science/maps

On a topographic map, how would you show a hill with an elevation of 80 feet if the contour interval is 10 feet?

asked by linda on February 17, 2011
55. ## chemistry

I need help. please show step by step? How many milliliters of 1.0 M NaOH would be required to completely neutralize 40.0 mL of 0.60 M HCl?

asked by Alex on March 20, 2017
56. ## Pre Calc

find the magnitude and direction angle of the vector v, v=-2i+5j please help i have no idea how to do this. could you show me step by step?

asked by Nate on June 2, 2010
57. ## Geometry

Write a coordinate proof to show that triangle FGH congruent triangle FDC

asked by Anon on December 12, 2017
58. ## Math

A rectangle is x+3cm long and ycm wide.If the perimeter of the rectangle is 24cm,show that y =a-x

asked by Okian on September 11, 2018
59. ## math

stacy multiplied 5x9 andand said the answer was 44. what two patterns could you use to show that her answer is not correct?

asked by Catie on November 28, 2011
60. ## calculus

Given v = sq.root of g^2 + 2gs where g is a constant and v is velocity and s is a positive function. Show that acceleration is a constant.

asked by Anonymous on March 31, 2010
61. ## math

For the curve given by 4x^2+y^2=48+2xy, show that there is a point P with x-coordinate 2 at which the line tangent to the curve at P is horizontal.

asked by Steven on December 31, 2014
62. ## Chemistry

The mass of spectrum of 2,4-dimethylpentane shows peaks at m/z 43, 57, and 85. Show the fragments which produce these peaks.

asked by Ryan on March 5, 2015
63. ## Calculus - Simpson's Rule and Arc Length

Can any show me step by step on how to get this? I keep on getting different answers... Thank You! Use Simpson's rule with n=10 to estimate the arc length of y=x^(-1/3), for 1

asked by Chelsea on July 31, 2014
64. ## Math

Find the equation of a line that passes through the point (1,2) and has a slope of 1/3 Can you please show me how you found the equation.

asked by Lyndse on December 17, 2009
65. ## Math (Adv. Functions)

Given that triangle ABC with sides a, b, and c, show that the area of the triangle is given by A = ((a^2)(sinB)(sinC))/((2sin(B+C)))

asked by KnowsNothing on December 12, 2012
66. ## Math

Express this function in vertex form by completing the square: 3x^2 - 4x + 1 PLEASE SHOW STEP BY STEP!!!

asked by Need Help on September 17, 2007
67. ## music

how do u use a repeat sign and were do you use it at This site will not only show you the sign, but explain when you need to use it. (Broken Link Removed)

asked by ashley on January 4, 2007
68. ## computers

is there a web site that can show you step by step how to put information into a flash drive

asked by carlos on September 29, 2008
69. ## Data Management

Determine the total number of arrangements of three or four toys from a basket of 8 different toys. Show your calculations

asked by Person on February 27, 2018
70. ## 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
71. ## Math

Find the equation of a line that passes through the point (1, 2) and has a slope of 1/3. Show how you found the equation.

asked by Crystal on February 20, 2010
72. ## math

1-sin^2x/cosx = sin^2x/2sinx Please help me figure out this one, can you show all the steps, I am really confused. Your help is very much appreciated. Thanks

asked by Sky on November 5, 2013
73. ## 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
74. ## 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
75. ## Math

If there are 4 dice are rolled, what are the possibe outcome for the each event? Could you show me some example how to figure out the outcome? Pls help, Thank you.

asked by Plshelp on September 17, 2007
76. ## Algebra

Use the intermediate theorem to show that the polynomial function value has a zero in the given interval f(x)=x^5-x^4+8x^3-7x^2-17x+7; [1.6,1.8] Find the value of f(1.6) Find the value of f(1.8)

asked by Alley on March 31, 2013
77. ## Social Studies

In what year did the War of 1812 start? 1812, right? Cause when I search it a lot of different dates show up

asked by Adam on January 25, 2012
78. ## math

Consider the following list of premises: a ^ :b ! c; :a ! :d; Show that g is a valid conclusion by constructing a step-by-step argument

asked by HELP on August 22, 2011
79. ## College Algebra

I have t = ln(2)/.04 and the book has the answer as 25ln(2) I know these are the same but please show me the steps to go from ln(20)/.04 to 25ln(2) What rules etc. make it so I can do that so I can do it on later problems Thank you

asked by Linda on December 20, 2012
80. ## Algebra

Show all steps and Find the maximum revenue for the revenue function R(x)= 360x - 0.05x^2

asked by Leah on November 10, 2013
81. ## Math question? Only 1.

Use the order of operations to simplify the expression. –18 + (–4) + 20 + (–3) I know the answer is -5. Care to show me how to do it step by step, please?

asked by Anonymous on September 24, 2014
82. ## 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
83. ## Math URGENT QUICK QUESTION

factor 9-6x-3x^2 The expression x^2-8x+k cannot be factored if k has the value A.)7 B.)0 C)-7 D)-9 Please show me how to do these questions step by step so that I can understand & learn

asked by Bella on September 25, 2014
84. ## help maths

plz help plz help if z=x+jy,show that the locus arg{(z-1)/(z)}=pi/6 is a circle.find its centre and radius

asked by putman/raj on January 31, 2017
85. ## math

Phil rolls 6 fair 6-sided dice. What is the probability that at least two dice show the same number?

asked by alias on July 3, 2018
86. ## math

Using the function y=x/4^x, show that the most simplified derivative is y′=(1−2xln(2))/4^x i dont understand how you get the 2xln(2) mine is ln(4)

asked by bobby on December 4, 2018
87. ## Math - Coordinate Geometry

Find the equation of the line which passes through the point (6, -4) and is parallel to to the line 2x-3y+3=0. Please show working out as well, thanks.

asked by Anonymous on December 16, 2016
88. ## Math

7 to the power of - 2 _______________________ 7 to the power of - 4 could you show me how you get 49 as the naswer...the long line shows that you need to divide both of them

asked by Dakota on October 15, 2009
89. ## Algebra

Hi, I'm struggling to do two questions. 1) If ||u||=2, ||v||=root 3 and u dot v = 1, find ||u+v|| 2)Show that there are no vectors u and v such that ||u|| = 1, ||v||=2 and u dot v = 3 Please help if you can. Thanks a million

asked by Vanessa on January 31, 2010
90. ## algebra 1

a number is less than one fourth of the sum of three times the number and four. can someone please explain to me how they got this answer and can someone please show me each step.

asked by morgan on November 10, 2013
91. ## Maths

Draw a picture to show how 3 friends can share 12 chocolate bars equally nd how much chocolate will they each get

asked by Sithembile on May 22, 2017
92. ## 8th grade

calculate each power of 10 what pattern do you see in part (a) explain hoe your pattern can show that 10 to the pwoer of 0=1

asked by unknown on September 20, 2010
93. ## Chemistry

Given 2 moles of NaCl, find the number of moles of Na. If you could show me the exact steps, that would be much appreciated.

asked by Ely on September 21, 2012
94. ## Maths - Matrices

I'm having trouble with doing this matrix proof The question is "Given some matrix A has the property A*2=A^-1, show that determinant A = 1, i.e |A| = 1" I've tried for ages, but I can't seem to do it, this is what I got to A^2= A^-1 |A^2| = |A^-1| |A|^2 =

asked by TP on March 29, 2009
95. ## math

find the eqt. of tangent to the curve y=-x^2+2x-10.[ans:y=2x-10] but my ans is y=-9. if im wrong could you show the calculation.

asked by fanny on July 22, 2011
96. ## calculus

Use the intermediate value theorm to show that the polynomial function has a zero in the given interval f(x)=x^5-x^4+8x^3-5x^2-14x5;[1.4;1.5] find the value of f(1.4) f(1.4)= find the value of f(1.5) f(1.5)=

asked by Brock on December 27, 2012
97. ## math

x=((30)/(5.15+1.84i))+(5.15+1.84i) i= square root of (-1) final answer of x=10.3 please show me how you drive this equation to get the 10.3. thank you so much.

asked by layth on September 21, 2010
98. ## 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
99. ## Math

How do i make a table of value for a quadratic relation? How do i know what x-values to use in the table? Can someone show me using this set of equations as an example. y= x^2 y= (x-2)^2 y= (x-4)^2

asked by Parabola on March 20, 2016
100. ## 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