# 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 201
1. ## math

I'm having issues with understanding exactly how Expected Values work, I understand what they are, just not how to get them in all cases. One of the problems I'm having trouble is involves two teams that play a series of games and ends when one of them has

asked by manny on August 16, 2007
2. ## Math

If an object which weighs 100 lbs on the Earth's surface were placed on a planet with 2 times the radius of the Earth and with 7 times the Earth's mass, how much would that object weigh? Enter answer to nearest 0.1 lbs. The term "void ratio" means the

asked by james bond on January 28, 2017
3. ## accounting

Three objectives of a company's internal control system should be safeguarding assets, checking the accuracy and reliability of accounting data, and promoting operational efficiency. A fourth objective of a company's internal control system should be:

asked by Debbie on June 23, 2009
4. ## Physics

A person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 18.0 m. She pushes in a direction 20.0° below the horizontal. A 40.0-N frictional force opposes the motion of the cart. (a) What is the magnitude of the force that the

asked by Anon on October 3, 2014
5. ## Computer Science Computer Programming

Please help! I cannot figure out what I am doing wrong. I cannot get the correct output when I run the system. Here is what I have entered in to Netbeans IDE: package shippingcharges; public class ShippingCharges { private double weight; private int miles;

asked by AB on May 21, 2012
6. ## Buffer

Show how would you prepare a solution of 500 mL of a 0.15 M acetate buffer, pH 4.6 based on one of the three methods illustrated in class and in the supplementary readings. You have available the following: 6 M HCl, 4 M acetic acid, solid sodium acetate,

asked by Anonymous on September 17, 2017
7. ## college english papre

I have paper written in english, not sure its correct or not. My english is kinda bad. grammar and spelling mistakes. If someone can help me out with this one. the paper is not long 2 pages. so i think it a couple minutes work. You can mark the mistakes

asked by YW paper on March 23, 2009
8. ## Physics

2-A 10.0 Kg block is released from point A in the figure below. The block travels along a smooth frictionless track except for the rough 1 m long portion between points B and C. It makes a collision with stationary 10 kg ball after passing point C. The

asked by Maryam on June 2, 2013
9. ## Chemistry

How do you prepare 600.0mL of 0.48M Al(NO3)3*9H2O? Is this correct? 1. Measure out 71g of solution 2. Put approx. 300.0mL of water into container 3. Add the 71g of solution to the water and mix 4. Add more water until 600.0mL of solution is obtained 5. Mix

asked by Anon on November 24, 2012
10. ## chemistry

100ml of h2s04 solution having molarity 1M and density 1.5g/ml is mixed with 400ml of water. Calculate final molarity of h2s04 solution if final density is 1.25g/ml 50ml of 20.8% bacl2 and 100ml of 9.8% h2s04 solutions are mixed. Molarity of cl ions in the

asked by Ken on November 16, 2014
11. ## chemistry

A 1M solution (200ml) of NH3 (Kb of ammonia=1.8*10-5) is added to 200ml of 0.5M HCl. Calculate: a) the resulting pH? b) The delta ph due to addition of 15ml of 1M HNO3 to solution obtained in part a c) I am stuck on this: The delta ph due to addition of

asked by anonymous on February 13, 2014
12. ## Physics

Vector A has magnitude of 9.77 units and points due east. Vector B points due north. 1) What is magnitude of B, if the vector A+B points 34.7 north of east? 2) Find magnitude of A+B I am not sure what formulas to use for this. If someone could show me how

asked by Hannah on May 21, 2012
13. ## Calculus 1

Use Newton's method to find the coordinates, correct to six decimal places, of the point on the parabola y = (x − 5)^2 that is closest to the origin.

asked by TayB on November 13, 2015
14. ## calculus

Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the specified axis. y = x3, y = 8, x = 0; about x = 9

asked by lidiya on March 13, 2017
15. ## Math

Find the real root of the equation 3x-cosx-1=0 correct to four decimal places using the Newton Raphson Method.

asked by Learner on May 9, 2018
16. ## social economics politics

what are the various methods of maintaining peace and unity in binational, multinational, and multiethic states? what are the strengths and weaknesses of each method?

asked by Anonymous on October 11, 2009
17. ## CALCULUS

Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the y-axis. Y = 3/X, Y = 0, X =5, X = 2

asked by ANNE on February 18, 2010
18. ## Calc 1

Use Newton's method to find the coordinates, correct to six decimal places, of the point on the parabola y =(x − 5)^2 that is closest to the origin.

asked by TayB on May 2, 2015
19. ## chemistry

John has three bottle of mineral acid but does not know which is which since he did not label the bottles before filling them. Suggest a method to which could be used to identify the acids.

asked by Angel on March 20, 2011
20. ## Math

Use the method of cylindrical shells to find the volume generated by rotating the region bounded by the curves x=y^(1/2), x=0, and y=4 about the x axis.

asked by Lexi on February 4, 2018
21. ## algebra

Using the Gauss-Jordan method need to determine the coefficients a,b,c of the quadratic equation x=ax squared +bx+c where y is degree of like and x is the percentage of sugar y=5.4 and x=8

asked by mike on December 12, 2009
22. ## calculus

Use Euler's method with given values of to obtain an approximation of the initial value problem when x=3 . Round your answers to four decimal places, if necessary. dy/dx= x+y, y(0) =3 n=4, y(3)= n=6, y(3)=

asked by Anonymous on April 21, 2012
23. ## Math-Quartic Equation

Reduce this equation using the quadratic formula, factoring, or other algebraic method to determine the other zeros of the function. F(x)= 4x^4 - x^3 - 11x^2 -2x +6

asked by Ash on October 28, 2012
24. ## Physics

I need help figuring this out. I am asked to write about similarities of two different ways of determining the value of g. One of them is using the slope of the line, and one of them is using the average. Each method used the same L and T values.

asked by Help on September 29, 2011
25. ## english

Does anyone know anything about Blank Verse, when tlaking about poems not rhyming. And the rhythm being iambic? Breaking down a sentence using this method and sybombls?

asked by Angela on January 18, 2009
26. ## Math

Use Regula Falsi Method to find a real root of the equation xe^x - 2=0 correct to two decimal places within the interval [0,1].

asked by Learner on May 9, 2018
27. ## maths

Resolve 5x-7/(x-1)(x-2)(x-3) into partial fraction using comparison coefficient method.pls i need ans asap with workings thanks in advance.?

asked by poppy on April 17, 2019
28. ## Algebra

I also need you to check and make sure that I am using the FOIL method correctly for this problem. #82). 9w-w^3 9w-w^3=w*(w^2-9) I have to factor out the GCF, which is “w”. 9-w^2=3^2-w^2= (3-w) (3+w) = (3-w) (w+3) 3-w=-(w-3) (3-w)(W+3)=-(w-3) (w+3)

asked by Lisa on August 10, 2014
29. ## social economics politics

What are the various methods of maintaining peace and unity in binational, multinational, and multiethnic states? What are the strengths and weaknesses of each method?

asked by jacob on October 12, 2009
30. ## Right triangle

Determine whether this is a right triangle vertices: G(1, -1) H(5, 0) and J(3, 8) Should I use distance formula to find the sides and use Pythagorean theorem to prove it? Or is there another method? Thanks.

asked by Jen on February 15, 2008
31. ## Calculus 2

use the method of cylindrical shells to find the volume generated by rotating the region bounded by the given curves about the y-axis. y=x^(1/3), y=0, x=1

asked by Dib on August 29, 2014
32. ## Calculus 1

Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the specified axis. y=8-x^2, y= x^2 ; about x=2 V=?

asked by Brianna on November 24, 2013
33. ## Algebra

Factor completely. 6z3 – 27z2 + 12z State which method should be applied as the first step for factoring the polynomial.

asked by Monic on May 13, 2007
34. ## calculus

Use Newton's method to find the coordinates, correct to six decimal places, of the point on the parabola y = (x − 7)2 that is closest to the origin.

asked by Bob on July 9, 2019
35. ## Calculus

Differentiate x^2*y^2 = (y+1)/(x+1) in terms of x and y. PS My answer is unfortunately at odds with that provided by the authors of the book (i.e. -y (y+1) (3x+2) all over x (x+1) (y+2), and I don't know whether it's a misprint or my method is wrong.

asked by Helga on November 20, 2011
36. ## college math

hello i just want a answer in these question: please. im begging! I. Use Newton’s method to approximate the real root to 4 decimal places. 1. X^3-3X+1=0 2 . X^3-X-2=0 3. 2X-3SINX=0

asked by kookay on February 10, 2010
37. ## AP calc

Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the specified axis. y = 8x − x^2, y = 12; about x = 2

asked by Emma on February 19, 2015
38. ## Calculus 1

Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the specified axis. y=8-x^2, y= x^2 ; about x=2 V=?

asked by Brianna on November 24, 2013
39. ## chmistry

balance each of the following chemical equations ,using the change in oxidation number method. cu +h2so4=cuso4+so2+h2o

asked by bb on February 14, 2013
40. ## calculus

Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the specified axis. y = 4x − x2, y = 3; about x = 1

asked by maria on March 13, 2017
41. ## calculus

the curve f(x)=x^2 from x=0 to x=4 is revoloved around the axis x=5. Determine the volume of the solis of revolution using the method of curcular cross sections

asked by Anonymous on December 13, 2011
42. ## Calculus

For the following function, find the relative max's or min's using any method. I'm having a hard time finding the critical points...

asked by Isabella on January 10, 2016
43. ## CHemistry

Given that the half life of c 14 is 5,700 ,use the method c 14 dating to determine the age of a fossil if it has 25% of c 14 compared to living specimen.

asked by Devin BOutte on November 16, 2011
44. ## Calc 1

Use Newton's method to find the coordinates, correct to six decimal places, of the point on the parabola y =(x − 5)^2 that is closest to the origin.

asked by TayB on May 2, 2015
45. ## Math

Find the volume generated if the region bounded by y = sin 2x and y = cos x, π/6 ≤ x ≤ π/2 is revolved about the line y = 2. Use the method of washers.

asked by Em on January 27, 2013
46. ## social economics politics

what are the various methods of maintaining peace and unity in binational, multinational, and multiethnic states? what are the strengths and weaknesses of each method?

asked by jacob on October 11, 2009
47. ## Ap Calculus

How do I find the following volumes formed by rotating the region bounded by: y=x^2, x^2+y^2=2, about the line y=-2(set up only using dish or washer method)

asked by Kaylea on April 16, 2015
48. ## Math

Is there a formula/method for finding a vertical line that divides a trapezoid into 2 parts with equal areas when all the vertices are known?

asked by Anonymous on February 4, 2017
49. ## Calculus

Use the disk method to find the volume of the solid generated when the region bounded by y=15sinx and y=0, for 0

asked by Becca on January 24, 2012
50. ## Physical Anthropology

Given the organic remains associated with the fossil, what method might yield a robust chronological date for Spy 2, a Neanderthal from Beligum?

asked by taylor B on February 5, 2012
51. ## maths

Awoman walks 4km east and then 8km north use the polygon method to find her resultant fisplacement

asked by abdirahman on October 30, 2016
52. ## social economics politics

What are the various methods of maintaining peace and unity in binational, multinational, and multiethnic states? What are the strengths and weaknesses of each method?

asked by jacob on October 12, 2009
53. ## Calculus

Use Euler's Method with three equal steps and y(1) = 1 to approximate y(1.3) for the differential equation dy/dx= x+y^2 a) 1.283 b) 1.695 c) 1.785 d) 2.943

asked by Alice on April 2, 2019
54. ## accounting

What are the different methods used to calculated depreciation? How does a company decide which method they should utilize? How does their choice affect the financial statements?

asked by rae on October 1, 2010
55. ## Science

Two forces of 60N and 80N act simultaneously at a point dertermine their resultant by using tail to head method

asked by Machanics (forces) on January 14, 2016
56. ## chemistry

By using the method of neutralization the acidity of the bee sting can be neutralized. What is the underlying principle and what are the chemical equations involved.

asked by kim jung hee on January 28, 2014
57. ## Calculus

Use the disk method to find the volume of the solid generated when the region bounded by 4= 1/(fourth root of (1-11x)), y=0, x=0, and x=1/22.

asked by Becca on January 24, 2012
58. ## MGT

The production standards approach involves ....... Q: Give a specific example of how you would use this method to conduct a performance appraisal for an employee.

asked by troyer0269 on November 11, 2008
59. ## science

what is the first step in the scientific method? a) a conclusion is made b) evidence is gathered c) a problem is presented d)an explanation is thought of C

asked by pam on September 5, 2010
60. ## Calculus.......plz help! =)

Use any calculus method to determine extrema, intervals where the function is increasing or decreasing, asymptotes, and points of inflection for y = -x(x+1)^3

asked by Amy on October 20, 2012
61. ## math

if the perimeter of rectangle is 50cm and its length is 5 cm greater than its breadth find its area please give answers with method

asked by vaidehi on March 30, 2013
62. ## Calculus

Use any calculus method to determine extrema, intervals where the function is increasing or decreasing, asymptotes,and points of inflection for y = -x^4 + 2x^3 - x + 2

asked by Sissy on October 20, 2012
63. ## maths

The method for completing the square can be used to write the expression −2x^2 + 12x−5 in the form a(x + b)^2 + c, where a, b and c are constants. Choose the option that gives the value of c. Options A −23 B −13 2 C 5 2 D 3 E 13 F 14

asked by albert on May 11, 2011
64. ## Calculus

Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the specified axis. x = 7y^2, y ≥ 0, x = 7; about y = 2

asked by sp on January 30, 2018
65. ## 7th grade

I am trying to unscramble ecrfenine in my science homework and cannot get an answer. My mom has read the whole chapter as well with me and we cannot find it. It has to do with scientific method.

asked by kaitlyn on August 18, 2010
66. ## bus math

simple discount notes.Use the ordinary interest method ADM D/R T B/D Proceed \$2900 6 1/4 180 days ? ?

asked by nell on October 25, 2016
67. ## Algebra

What are integer values for c in the following: 2 x^2 + 5 x + c = 0 What's the logic/method to get c with using a calculator, Excel,... I don't see how to uss outer/inner combo or AC grouping.

asked by Anthony on December 15, 2015
68. ## lib320-global socioeconomics

What are the various methods of maintaining peace and unity in binational, multinational, and multiethnic states? What are the strengths and weaknesses of each method?

asked by Anonymous on September 10, 2010
69. ## Calculus - integration

Integral of (2x+5sin(x))^2 dx i didn't know how to start this question so i expand the squre first and then did the rest but its wrong and i don't think my method is right. thank you.

asked by L on November 2, 2010
70. ## sum fun (math)

find a quick and easy method to compute the sum of the first 100 counting numbers (no calculators allowed)

asked by Jenny on January 27, 2010
71. ## chemistry

determine ca2+ and mg2+ ion present in per litres of drinking water quantitively using EDTA method?

asked by mrinal on March 17, 2012
72. ## physics

explain the scientific method for dropping a penny from the empire state building to see if it will penetrate someones head below

asked by amy on October 28, 2012
73. ## Calculus 1

Use Newton's method to find the coordinates, correct to six decimal places, of the point on the parabola y = (x − 5)^2 that is closest to the origin.

asked by TayB on November 13, 2015
74. ## Calculus/Substitution

The integral from 1 to 2 of x*the square root of (x-1) dx. Using the substitution method, I said that u = x-1, du = 1 dx, and dx = du. I'm not sure how to plug u back into the equation since I still have that first x. Suggestions are greatly appreciated.

asked by Amy on July 12, 2009
75. ## extreme values of the function

Using analytical method, find the extreme values of the functions on the interval and where they occur. 1. f(x) = ln(x+1), 0

asked by Jen on October 28, 2006
76. ## Business comunication

As a professor at State University, you have been asked to write a letter of recommendation for one of your advisees who is applying for an internship. The student is now a senior and you have known her since she was a freshman. She has taken two courses

asked by ssmhollywood on December 6, 2011
77. ## chemistry

Enthalpy and Entropy in Reactions and Solutions Introduction In the course of most physical processes and chemical reactions there is a change in energy. In chemistry what is normally measured is H (enthalpy change), the change in heat at constant pressure

asked by allison on November 30, 2010
78. ## Geography

What is absolute location? A. a precise measure of where a location falls in terms of longitude and latitude using units such as minutes and seconds B. a precise measure of distance around the equator C. a more precise measure of where a location falls in

asked by Alyssa on January 28, 2018
79. ## chemistry

A student prepared 5.00 mL of borax solution at 59.2 C. He diluted the solution in a flask and titrated it to an endpoint with 27.05 mL of 0.500 M HCl. What is the saturation concentration of borate ions? This is a question in relation to a lab we did of

asked by Anonymous on November 26, 2010
80. ## chemistry

If 26.223 mL of potassium permanganate solution is required to titrate 1.041 g of ferrous ammonium sulfate hexahydrate, { FeSO4(NH4)2So46H2O }, calculate the molarity of the KMno4 solution. and the equation the lab gave me was Mn04(-) + 8H(+) + 5Fe(+2)

asked by chris on March 11, 2008
81. ## Feedback Control

The goal of this project is to model the longitudinal motion of a Segway and design a PID controller for it. The model must include the dynamics of the inverted pendulum on two wheels, as shown on Figure 1 (left), and the model of the DC motors (same as )

asked by Jack on December 9, 2017
82. ## chemistry

2. When preparing a NaOH solution, a student did not allow the NaOH pellets to completely dissolve before standardizing the solution with KHP. However, by the time the student reﬁlled the buret with NaOH to titrate the acetic acid, the remaining NaOH

asked by anonymous on March 24, 2014
83. ## college: Chemistry

I need help on this homework problem and I do not understand how to work on it. Please help me with this problem. The photoelectric work function of a metal is the minimum energy needed to eject an electron by irradiating the metal with light. For calcium,

asked by Mai on February 15, 2009
84. ## spell

Steroids in the world of athletes. In the last decade many records have been broken in the world of athletics, is this do to harder training and work ethic or the ignorant testing of anabolic steroids. With technological advances the enhancement of

asked by Walker on April 4, 2008
85. ## Math

I don't even know where to begin on this problem... The function f(x) is an unshifted exponential function which goes through the oints (2,5) (3,4). a)What is the equation for f(x)? b)write f(10) and f(100). If it's an exponential function then we know

asked by Nicole on August 31, 2006
86. ## chem

Liquids A and B form an ideal solution. A certain solution contains 25 mole % of A, whereas the vapor in equilibrium with the solution at 25 degrees C contains 50. mole % of A. The heat of vaporization of A is 5 kcal/mol; that of B is 7 kcal/mol. a)

asked by Chris on March 28, 2007
87. ## Financial officer Interview

1.Briefly describe your current position and its duties and responsibilities. 2.What are the revenue centers for your organization 3.What types of centers (departments) have budgets? 4.How many cost centers are there? Can you give some examples? 5.How

asked by Molly on August 28, 2009
88. ## Physics

A box, with a weight of mg = 25 N, is placed at the top of a ramp and released from rest. The ramp measures 4.40 meters horizontally and 3.50 meters vertically. The box accelerates down the incline, attaining a kinetic energy at the bottom of the ramp of

asked by Jeanne on October 30, 2011
89. ## algebra

The airline cost for x passengers, measured in thousands of passengers, to travel round trip from New York to Atlanta is given by c(x)=^0.3x+1 where (c)x is measured in millions of dollars and x>0 Find the airline’s cost for 10,000 passengers (remember,

asked by ayoma on August 10, 2016
90. ## Chemistry

If 15.0 mL of a 1.5M HCl solution at 22.5 degrees C is mixed with 25.0mL of a 1.5M NaOH solution at 21.5 degrees C that is in a calorimeter, and the final mixed solution temperature ends up at 28.5 degrees C, 1.)what is the balanced equation for this

asked by Jennifer on April 13, 2014
91. ## maths/physics

particle of mass m kilograms is acted on by two forces F and F with magnitudes 3*sqr-root 5 newtons and sqr-root 5 newtons and directions parallel to the vectors i+2j and i-2j respectively. The particle is initially at a position given by the vector

asked by rav on July 14, 2006
92. ## Socials-Ms. Sue

Ms. Sue I asked my teacher about the memo today, and she said that it is supposed to be advantages and disadvantages for France, not Britain. Imagine that you are a senior advisor to Napoleon. You have been asked to prepare a memo outlining the advantages

asked by Sara on November 9, 2009
93. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (1a) Write a balanced chemical equation for the neutralization

94. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (1a) Write a balanced chemical equation for the neutralization

95. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (a) Write a balanced chemical equation for the neutralization

asked by sabrina on November 27, 2012
96. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (a) Write a balanced chemical equation for the neutralization

asked by sabrina: PLease someone help! on November 28, 2012
97. ## CHEMISTRY

Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L-1 CH3CH2NH2 (aq) is titrated with 0.150 mol L-1 HI(aq) solution at 298 K. (a) Write a balanced chemical equation for the neutralization

asked by sabrina: I am having difficulties with this! on November 28, 2012
98. ## math

A pasture has four straight sides. Three sides are 3/8 miles long. It took 1 3/8 miles of fencing to enclose the pasture. What is the length of the fourth side? Using a verbal model write an equation for this situation, where x is the length of the fourth

asked by kim on October 1, 2008
99. ## analytical chemistry

Any help is greatly appreciated 5mL of a solution A (unknown concentration) was transferred into sic 25mL volumetric flask. The following volumes of a standard solution of A with with a concentration 75ppm were added to the flask: 0mL, 0.5mL, 1mL, 1.5mL,

asked by Katy on May 8, 2015
100. ## math

compare and contrast: below are two equations. solve each equation and compare the two solutions. choose the statement that is true about each solution. equation #1 2x-3=-17 5x+3=12 A. equation #1 and equation #2 have the same number of solutions B.

asked by HELLP PLEASE on October 13, 2014