# 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

91,330 questions, page 300
1. ## history

What is the mayflower compact? A. a long-term treaty for trade routes with the duch tea company B. a formal method to establish systematic order on the pilgrams C. an economic agreement to freely make and sell goods to the british D. a formal agreement by

asked by Jojo on November 3, 2017
2. ## Management

The price P per unit at which a company can sell all that it produces is given by the, function P(x) = 300 — 4x. The cost function is c(x) = 500 + 28x where x is the number, of units produced. Find x so that the profit is maximum., Question:, 1) Find the

asked by Rajan on March 28, 2013
3. ## human resources

Write a 1,400- to 1,750-word paper in which you address the following considerations related to selection tools: o Name three selection tools that you would consider using for a hiring program at a supermarket. o Choose what you think is the best selection

asked by pam on October 18, 2009
4. ## Math

How would you go about solving these problems using a chart to help? I tried them, but for some reason I keep getting them wrong (I checked the answers in the back of my book, which does not give an explanation as to how to solve). 1. Thirty students

asked by Shaina on October 16, 2008

i have a lab where we used VI method to calculate resistance of a LARGE resistor... circuit is as follows..(--- indicates wire) source---ammeter---resistor(voltmeter connected in parralel to resistor)---(connected back to source) the R value calculated was

asked by SAM on February 9, 2010
6. ## English

Are the verbs in these sentences passive voice, weak or past tense. My answers: 1. The book was informative but too long.--weak or past or both?? 2.The teachers have sent the book to the publisher.--past 3.The essay has been shortened by ten pages.-- past

asked by Matt on February 29, 2012
7. ## physics

A person is riding on a Ferris wheel of radius R. He starts at the lowest point of the wheel. When the wheel makes one complete revolution, is the net work done by the gravitational force positive, zero, or negative? Do you need to know how the speed of

asked by Amy on February 13, 2012
8. ## Chemistry

Hi there - I'm going to post the question as written in my book. Three 20.0 mL samples of nitric acid are titrated with a 0.200 mol/L solution of sodium hydroxide. The results for the three trials are shown in the table below. What is the concentration of

asked by Dexter on June 5, 2011
9. ## calculus

solve for the second derivative and set to zero f"(x) = ((x^2-4)*sin(2x)- [(2x)(1+cos^2(x))]/ ((1+cos^2(x))^2) i don't know how to set it to zero and solve i get this: (x^2-4)(sin(2x))= (2x)(1+cos^2(x)) thanks for help

asked by Ken on June 10, 2013
10. ## Math

I just need to know the formula to solve this problem. I will solve it myself. Problem: A woman has \$1.70 in dimes and nickels. She has 5 more dimes than nickels. How many nickels does she have?

asked by Jacqueline on January 17, 2010
11. ## Physics

A wheel with rotational inertia I is mounted on a fixed, fricitonless axle. The angular speed w of the wheel is inccreased from zero to w_f in a time interval T. 1: What is the average net torque on the wheel during the time interval, T? a) w_f/T b)w_f/T^2

asked by Tammy on March 25, 2007
12. ## Language Arts

7) While I was researching skate boards, I found an interesting old newspaper story. 8) In the June 29, 1999 edition of the Mercury, there was an article on skateboarding. 9) Some scientists in San Francisco, California filmed skateboarders in action. 10)

asked by #1Student on March 7, 2014
13. ## English check answers !

1.B 2.C 3.C 4.A Read the following draft for a research paper on italian food. When you think of italian food,does your mouth always water for pizza or pasta? Actually,italian food includes a tremendous variety of dishers.These tasty morsels come from many

asked by matt on April 24, 2014
14. ## Chemistry

Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 70. cm3. If the combustion of this mixture releases 930. J of energy, to what volume will the gases expand against a constant pressure of 670. torr if all the

asked by Samir on March 25, 2011
15. ## Physics

A parachutist drops out of a plane at an altitude of 150m and accidentally drops his camera. If the parachute opens the instant he drops out of the plane and he descents at a constant speed of 6 m/s, how much time separates the arrival of the camera on the

asked by Anna on April 5, 2015
16. ## Science

Are any of the bellow chemical changes reversible? If yes, then how? Mixture of Lear Nitrate and Potassium Iodide Mixture of Copper Sulphate Solution and Iron Mixture of Copper Sulphate Solution and Sodium Carbonate Mixture of Dilute Hydrochloric Acid and

asked by Javal on October 24, 2010
17. ## chemistry

A flask is charged with 0.124 mol of A and allowed to react to form B according to the reaction A(g) →B(g). The following data are obtained for [ A ] as the reaction proceeds: Time (s) 1 10 20 30 40 Moles of A 0.124 0.110 0.088 0.073 0.054 how do i solve

asked by JES on November 1, 2010

set up the linear programming problem. Do not solve. A brewery manufactures three types of beer-lite, regular and dark. Each vat of lite beer requires 6 bags of barley, 1 bag of sugar, and 1 bag of hops. Each vat of regular bear requires 4 bags of barley,

asked by sha on July 19, 2010
19. ## DrBobb222 : Chemistry HElp...Please Check

Standardization of the Sodium Thiosulfate Solution Make up a standard solution of potassium iodate by accurately “weighing by difference” about 0.1 g of KIO3 and placing it in your 100 mL volumetric flask. Fill the flask to mark with distilled water.

asked by Sara on October 21, 2008
20. ## chemistry

Which of the answer choices correctly describes an action that will increase the solubility of a solid solute in water? cool the solution increase the pressure heat the solution decrease the pressure Examine the statement. The energy required to break the

21. ## science

What adaptation does a bird have that allows it to live in a tree? a. feathers and eyes b. claws and wings c. a pointed beak and warm feathers d. a beak and wings How would a beak help living in a tree? How would feathers help live in a tree? Can you look

asked by tater tot on September 25, 2006
22. ## chemistry

Iron can be determined gravimetrically by precipitating as Fe(OH)3 and igniting to Fe2O3. The sample to be analyzed is weighed and transferred to a 400-mL beaker where it is dissolved in 50 mL of H2O and 10 mL of 6 M HCl. Any Fe2+ that is present is

asked by Anonymous on March 29, 2017
23. ## Math Help

In three math tests, you have scored 91,95 and 88 points. You are about to take your next test. Suppose you want to have an average score of at least 90 points after all four tests. Explain a method you could use to find the score you must receive in order

asked by Anonymous on February 8, 2016
24. ## Math (Statistics)

The Centers for Disease Control reported the percentage of people 18 years of age and older who smoke (CDC website, December 14, 2014). Suppose that a study designed to collect new data on smokers and nonsmokers uses a preliminary estimate of the

asked by Brandon on April 5, 2017
25. ## Physics (E&M)

1/2Eo times ( (volume integral)E^2 dtau + (surface integral)E PHI da ) That's the equation, the first integral is over the voume of a surface charged (q) sphere of radius a > R (radius of sphere) so a Gaussian surface beyond the sphere and the second is

asked by lucca on October 23, 2006
26. ## Social Studies (PLZ HELP MEE!!)

1. Why did Thomas Paine’s write the pamphlet, “Common Sense"? A. To support conquering the native Americans B. To argue that more land should go to France and Spain C. To show that loyalty to the monarchy was wrong •• D. To pledge his loyalty to

asked by Marcos López on September 27, 2016
27. ## Social studies

Why did Thomas Paine write the Pamphlet, Common Sense? 1: to support conquering the Native Americans 2: to argue that more land should go to france and spain 3: to show that loyalty to the monarchy was wrong 4: to pledge his loyalty What was most dangerous

asked by Social studies on September 6, 2016
28. ## Social Studies

Why did Thomas Paine write the pamphlet, Common Sense? A. to support conquering the Native Americans B. to argue that more land should go to France and Spain C. to show that loyalty to the monarchy was wrong D. to pledge his loyalty to the British

asked by Paysen on September 14, 2016
29. ## Algebra

I am in need of assistance with the following problem: v-4(4-v) = -2(2v-1) I don't want an answer I will work the problem myself I just need some one to assist me with the detailed rule or formula to work the problem. I have been on multiple sites trying

asked by Alexcia on March 12, 2007
30. ## maths geometry

. Armin is designing a bottle for a new shampoo. The bottle should have a volume of 450 cm3. Armin wants to minimize the amount of plastic used in the bottle. Determine the dimensions of the bottle with the minimum surface area in each case. Explain your

asked by peace on April 17, 2017
31. ## CJS 240

Please write a 300 to 350 word response explaining how the threat of punishment either does or does not deter juvenile delinquency. Provide examples of general deterrence, specific deterrence, and situational crime prevention strategies. Additionally,

asked by Ronnie on May 6, 2009
32. ## Calculus (Im I Doing This Right???? Im Unsure)

From first principles (ie using the tangent slope method), find the slope of the following curves at the given value of x. f(x)=2x^2−6x at x = 3 f(x)=2x^2-6x f(x+h)= 2(x+h)^2-6(x+h) =2x^2+4xh+2h^2-6x-6h lim h-->0 f(x+h)-f(x)/h =2x^2+4xh+2h^2-6x-6h -

asked by Marc on April 16, 2016
33. ## Math

Which graph best represents the solution to the following pair of equations? (1 point) y = −x − 5 y = 2x + 4 A graph is plotted with values ranging from negative 10 to 10 on both x axis and y axis at increments of 1. Two lines having equations y is

asked by Hi my name is BPK! Hi on April 19, 2019
34. ## History

Where is the erie canal located? A- New york B- New Jersey C-Maryland D- Maine Cities grew along railroads and canals because A- the government designed the cities B- workers could not live anywhere else C- settlers could obtain cheap land nearby D- there

asked by Katie on February 8, 2015

3. What hobby does Louisa constantly engage in? A. Spying on Joe C. Taking in stray dogs B. Breaking hearts D. Sewing 4. Who visits Farquhar and encourages him to burn the bridge? A. His wife C. A Union soldier B. A Confederate soldier D. An English

asked by Tyree McCoy on June 3, 2008
36. ## ENGLISH

hy! Can somebody be so kind and correct my essay on " Being a surgeon is very stressful" I would really appreciate it, because my english is not perfect and I think I made some mistakes :) According to my opinion being a surgeon is one of the most

asked by Lulu on April 25, 2010
37. ## Chemistry

A closed bottle contains a solution of 5.0% by mass acetone [(CH3)2CO] in water. Calculate the vapour pressure (in kPa) of this solution at 25oC. The vapour pressure of pure water at 25oC is 3.17 kPa and that of pure acetone is 30.7 kPa.

asked by Vanessa on February 5, 2017
38. ## chemistry

5.34g of salt of formula M2SO4 (M is a metal)were dissolved in water. The sulfate ion was precipitated by adding excess barium chloride solution when 4.66g of barium sulfate (BaSO4) were obtained. a)How many moles of sulfate ion were precipitated as barium

asked by Ben on October 19, 2013

4. Which one of the following philosophies makes every employee a quality inspector for his or her own work? A. Six sigma C. Kaizen B. Quality at the source D. TQM 5. According to Maslow’s theory, what happens when a need is satisfied? A. The need

asked by Maria on March 19, 2016
40. ## Math

7. Jim has 38 bottles of water in 9 of x bottles and one pack that contains only 2 bottles. What is the value of x? (Hint: Set up a two-step equation.) I don't know how to solve this. Help. 10. Addison read 25 pages of the book the first day. She continued

asked by Rose on January 10, 2018
41. ## chemistry

I would love some input on a few problems, listed below. My answers follow the questions 1. Would it be feasable to store a solution of lead nitrate in a container of metallic zinc? Why or why not? No, it would not. A chemical reaction takes place, as the

asked by delany on July 2, 2008
42. ## chemistry

I would love some input on a few problems, listed below. My answers follow the questions 1. Would it be feasable to store a solution of lead nitrate in a container of metallic zinc? Why or why not? No, it would not. A chemical reaction takes place, as the

asked by delany on July 3, 2008
43. ## Chemistry

I'm going crazy please help me out part 1 of 2 Determine the mass of anhydrous copper(II) sulfate that must be used to prepare 250 mL of 2.01 M CuSO4(aq). Which i found to be 80.204g part 2 of 2 Determine the mass of CuSO4.5H2O that must be used to prepare

asked by ninzyy on September 5, 2011
44. ## Chem

A solution is made by dissolving 0.584 mol of nonelectrolyte solute in 883 g of benzene. Calculate the freezing point and boiling point of the solution. Tf=? Tb=? I got Tf as 3.39 degrees Celsius I got Tb as 1.67 degrees Celsius It marked me wrong and said

asked by Jen on February 18, 2012
45. ## help!

Can you please give me one of them so I cansolve for the other one?PLease! The general formula for a straight line is y = mx + b. Just plug the points into the equation to arrive at two equations. 6=2m+b 10=4m+b you have two equations and two unknowns.

asked by margie on November 1, 2006
46. ## math

108 is 36% of what number? Write and solve a proportion to solve the problem. First write the proportion to find the missing value, which I will replace it with n. 108/n = 36/100 Next write the cross products. So, 36n = 108 x 100 = 10,800 divide each side

asked by tita on February 1, 2017
47. ## biology can someone check

Decide if each of the following statements is true.If it is not rewrite the parentheses part to make it true. 1) Scientific methods include observation,(forming a hypothesis, and experiment). ans: false ;answer questions; solve problems 2)A statement that

asked by joy on December 28, 2010
48. ## physics

A 1.3 Kg block of ice is initially at a temp of -5 degrees celsius. If 7.5 *10^5 J of heat are added to the ice, what is the final temperature of the system? I multiplied 1.3 Kg of ice by the specific heat of ice (2090), then I divided by the amount of

asked by tasha on June 22, 2007
49. ## Journalism

Could you please quick revise this? Does the senior/freshman after IU need to be capitalized? Ex: said IU freshman Avery Walts. said IU Freshman Avery Walts. Which one of these is correct? Taking the First Step By:Bryce and Katlyn They call it “the good

asked by Bryce on December 2, 2011
50. ## math

Write and solve the number sentences she could use. Ms. Cloudcover, the TV weatherperson, noted that Sunday’s temperature was 12, much warmer than the -7 on Friday and the -2 on Saturday. She remembered that Thursday’s temperature was 0 and checked to

asked by Anonymous on February 21, 2011
51. ## Social Studies (Check, Please!)

1. What events in Roosevelt's life shaped his ideas and characters? A: Roosevelt winning a seat in the New York State Senate, becoming assistant secretary of the navy, suffering from polio, and being elected as the governor of New York were the life events

asked by Victoria on November 19, 2015
52. ## Jill

State the relationship of A to B (i.e. , = or can't be determined). 1. Using a 0.05 M Ag+ titrant A.VEP in titration 25-mL of 0.01 M MgCl2 B.VEP in titrating 25-mL of 0.01 M AlCl3 2. A 25.0-mL solution contains 0.015 M NaCl and 0.010 M HCl A.VEP (Mohr)

asked by Chemistry Homework Help on February 20, 2012
53. ## Calculus

let f(x)=2x-7. Use the rigorous definition of limit to show that lim x-->4 f(x)=1

asked by Sarah on June 13, 2016
54. ## Math

show that in general, each of the following is false if A, B, and C are whole numbers? 1. A/B = B/A 2. (A/B) / C = A / (B/C) 3. A / (B+C) = (A/B) + (A/C) 4. A / B is a whole numbe

asked by Jagals on July 8, 2012
55. ## communication

what are some negative things that occur in the tv show The Simpsons

asked by Anonymous on November 7, 2010

In this sequence, tk is a factorial number, often written k!. Show that tk=k!=k(k-1)(k-2)...(3)(2)(1)

asked by Josh on February 23, 2009
57. ## mathematical physics

For a scaler field ϕ(x, y, z) = x^n+y^n+z^n, show that (🔻ϕ ).r = nϕ , where n is a non-zero real constant.

asked by gourav bhardwaj on September 21, 2016
58. ## Chemistry

Using equation only. Show how tetraoxosulphate(IV) can be prepared industrially

59. ## Math

Simplify that rational expression. Please show the steps x^3-8/x^2-4

asked by Anonymous on March 20, 2010
60. ## Math

what does a dot plot show, that a histogram doesn't?

asked by Kelly Richmond on February 24, 2016
61. ## Maths

show that the circles x^2 + y^2 - 10x - 8y + 18 = 0 and x^2 + y^2 - 8y - 4y + 14x = 0 do not intersect

asked by Joe on May 2, 2017
62. ## Math

HELP PLZ !!! Show that the set of points are collinear (a) (-2,-6) (2,-4) and (4,-3) (b) (-5,5) (1,1) and (4,-1) (c) (-5,-6) (-2,0) and (-1,2)

asked by Lesedi on August 19, 2014
63. ## precalculus

show the correct notation for “The limit of x^2 - 1 as x approaches 3.

asked by sally on December 21, 2016
64. ## Calculus

Find the limit. lim x-->1 (x^3)-1/((5x^2)+2x-7) Please show steps.

asked by Janet on May 9, 2011
65. ## Science

Please for diagrams to show the terms associated in the study of levers.

asked by Divine on May 8, 2013
66. ## maths

sinA+cosA=p and secA+CosecA=q then show that q[p^2-1]=2p

asked by kumar on February 28, 2018
67. ## Math--Teach me?

Use the order of operations to simplify the expression. 2[4(9 – 7) + 1] ÷ 3 Can someone show me how to do this?

asked by Anonymous on September 24, 2014
68. ## algebra

I don't understand how to do this, so please help. Could you show the steps , so I can try it own my ow to see if I can get it.Thank you. 2SQRT4t^9z^2.

asked by jessica on September 3, 2010
69. ## algebra 2

asked by lisa on December 12, 2012
70. ## Biology

Why do we use the flourscent dye in DNA sequencing, what does it show?

asked by Emmie on March 9, 2008
71. ## math

given the following equations: 2x-3y=10 3x=4y=15 which one of the regression equation x on y? show computation

asked by AAA on February 17, 2017
72. ## pre calc

show that the statements are true for all natural numbers 1^3 +2^3 +5^3+....+(2n+3)^3 =n^2(2n^2 -1)

asked by appy on March 3, 2013
73. ## college

show me examples of nonprejudical rhectorial device

asked by diane on September 20, 2008
74. ## Math

asked by G man on December 5, 2017
75. ## calculus

(6+2y)/(3*sqrt(9-y^2)) = Ae^(kt) How do you show the steps to figure what y equals?

asked by David on March 29, 2010
76. ## math

(4x^4 - 4x^2 + 6x) / (x-4) show how youd divide this using synthetic divison

asked by tom on March 14, 2018
77. ## math

Show the solutions of the two examples given: (a) If a = 4, b = 3, and A = 36o. (b) If a = 3, b = 4, and A = 48.59o.

asked by nojo on May 17, 2010
78. ## Calculus HELP

Using the function y=x/4^x, show that the most simplified derivative is y′=(1−2xln(2))/4^x

asked by Anonymous on December 4, 2018
79. ## Math

Evaluate: log base 2 of 32^3 show all steps.

asked by Labz on June 9, 2012
80. ## Math- Algebra

ABSOLUTE VALUES that have to get graphed. g(x) = | -x - 3 | f(x) = | x + 2 | + 3 g(x) = | 2x - 3| +1 can you help me do these? and show the steps?

asked by celine on April 24, 2009
81. ## math/limits

lim {x-3}/(x^2-9) x->3 ( I used {} to show absolute value) Find the limit if there is one.

asked by Morgan on October 25, 2014
82. ## math

show that the altitudes of equivilent root3/2 of a side

asked by sohan sah on August 20, 2013
83. ## English

Can you please show me a sample of a diagrammed sentence with phrases?

asked by Tyler on July 20, 2008
84. ## life orientation

show the link between intrapersonal conflict and relationship

asked by debeila grace on February 22, 2015
85. ## Chemistry

Does anyone know why amines show high solidility in water?

asked by Lisa on February 17, 2008
86. ## math

How I write two subtraction equations to show how to find 15-7

asked by anoude on September 15, 2018
87. ## Math

Draw two number lines that show 0.20 and 1/5 are equivalent

asked by Anna on October 6, 2015
88. ## Algebra 2

Formula to convert 5681mg to kg. I need to show the steps

asked by Dalilah on August 27, 2013
89. ## algebra 2

asked by lisa on December 12, 2012
90. ## Writing

asked by stephanie on March 7, 2010
91. ## calculus

(6+2y)/(3*sqrt(9-y^2)) = Ae^(kt) How do you show the steps to figure what y equals?

asked by David on March 29, 2010
92. ## calculus help

if y^3=6xy-x^3-1 show that the maximum value of y occurs where x^3=8+2sqrt(14)

asked by samson on September 23, 2016
93. ## Algebra 2

Formula to convert 5681mg to kg. I need to show the steps

asked by Dalilah on August 27, 2013
94. ## math

show that the following point are the vertical of a square(-2,4) (2,0) (2,8) and (6,-4),find AB, CD, AC, BD, AD

asked by odukoya on May 16, 2016
95. ## algebra

can you show the problems worked out x-y=3 if x=1,2,3,4 etc... and -x+4y=9 if x = 1,2,3,45,6 etc.. I need to graph coordinates. Thanks

asked by sherry on February 1, 2010
96. ## Chemistry

In saponification, does sudsing show after adding acid. Why?

asked by Ashley on April 18, 2013
97. ## algebra

Can someone show me the steps to figure out 1728 divided by 24

asked by Anonymous on August 30, 2012
98. ## psychology270

How do I show a presentation on Unipolar and Bipolar Depression?

asked by Ronald on November 27, 2013
99. ## Math

Use a sum formula to show that cos(2u)=2sinucosu

asked by Matt on April 18, 2016
100. ## Science

Hello. Can someone please show me a link or something to the Big Bang theory???

asked by AngelWolfAssassin on April 16, 2013