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 251
1. Help...More Math Help!!!...Please!

A kayaker paddled 2 hours with a 6 mph current in a river. The return trip against the same current took 3 hours. Find the speed the kayaker would make in still water. The speed is 6 mph slower going upstream and 6 mph faster going downstream. Distance

asked by Jessica on November 16, 2006
2. Socials

John. A Macdonald for Confederation... For 20 long years, I have been dragging myself through the dreary waste of Colonial politics. I thought there was no end, nothing worthy of ambition; but now I see something which is well worthy of all I have suffered

asked by Sara on March 14, 2011
3. College Chemistry

The Question Is: "A student weighs 0.347 g of KHP on a laboratory balance. The KHP was titrated with NaOH and the concentration of the NaOH determined to be 0.110 M. For the second titration, the student correctly diluted 6 M HCl from the reagent shelf

asked by James on October 19, 2010
4. Chemistry

The Question Is: "A student weighs 0.347 g of KHP on a laboratory balance. The KHP was titrated with NaOH and the concentration of the NaOH determined to be 0.110 M. For the second titration, the student correctly diluted 6 M HCl from the reagent shelf

asked by James on October 20, 2010
5. window XP

Which of the following is true of the Encrypting File System (EFS)? a. The Encrypting File System provides encryption for data files stored locally using the file systems supported by Windows XP Professional. b. If the file owner loses the private key used

asked by John on March 27, 2010
6. physics

what is the difference between work and workdone I hope the following references will help you: http://www.ac.wwu.edu/~vawter/PhysicsNet/Topics/Work/DefinitionWork.html http://en.wikipedia.org/wiki/Mechanical_work

asked by ada on November 25, 2006
7. language art

Think about the work you completed in your reading character role. Determine the ideas that would be most worthy to share in a literary discussion about Johnny Tremain. Provide an explanation for your choices. How did the role you selected and the work you

asked by anon on January 14, 2015
8. L.A

Think about the work you completed in your reading character role. Determine the ideas that would be most worthy to share in a literary discussion about Johnny Tremain. Provide an explanation for your choices. How did the role you selected and the work you

asked by anon on December 6, 2015
9. Physics

no idea all HELP appreciated!! A shot-putter puts a shot (weight = 70.3 N) that leaves his hand at distance of 1.45 m above the ground. (a) Find the work done by the gravitation force when the shot has risen to a height of 2.15 m above the ground. Include

asked by Joe on October 19, 2009
10. Algebra 2

The sum of 3 numbers is 42 The sum of the first number and the third number +2 = the second number The third number multiplied by 2 is equal to the sum of the first and third number Can someone help me solve this? Questions like these make my brain hurt, I

asked by Fading on November 9, 2016
11. Log help

If a^3 + 3ab(a+b+3)+b^3 = 10ab, show that log (a+b)=1/3(log a + log b). Please show step by step. Thank you!

asked by Anonymous on March 27, 2012
12. math

When writing an equation in point-slope format, is it not proper to fully solve for y? For example, here is my problem: Find the point-slope equation for a line containing the point (-7, 2) and the slope m = 3. The answer was this: y – 2 = 3(x + 7) I was

asked by Carly on October 8, 2018
13. Calculus

Find expressions for the quadratic functions whose graphs are shown. One graph has the point (4,2) plotted in which the parabola passes through (U-shaped parabola- right side up) The vertex is at (3,0) and the parabola does not touch the y-axis for as much

asked by Chelsea on September 21, 2010
14. Math Help Please

Can you Please explain the answer that I received of 2469? It is the correct answer but I do not understand how to show the work. Thank you *************************************** Using the 9 digits, 1, 2, 3, 4, 5, 6,7, 8 and 9 you can arrange four

15. Physics

A man stands on the roof of a 19.0 m-tall building and throws a rock with a velocity of magnitude 24.0 m/s at an angle of 38.0 degrees above the horizontal. You can ignore air resistance. Calculate the maximum height above the roof reached by the rock. Got

asked by Josh on September 17, 2006
16. Psyc Research Methods

In the above study, the researchers reported the following mean femininity ratings (i.e. higher numbers indicate greater femininity): male- small meals (2.02) male- large meals (2.05) female- small meals (3.90) female- large meals (2.82) Assume that there

asked by Jessie on May 2, 2012
17. physics

If a vibrating system has total energy Eo , what will its total energy be (in terms of Eo) if you double the amplitude of vibration? If you want to triple the total energy of a vibrating system with amplitude Eo , what should its new amplitude be (in terms

asked by Erin on April 18, 2008
18. physics

So I'm doing a lab about simple harmonic information and I have to answer questions at the end of a lab were I'm provided this question to answer here's a step that's not the actual question but the question makes reference to it step 3 Using the pointer

asked by Kelly on June 1, 2009
19. Physics

So I'm doing a lab about simple harmonic information and I have to answer questions at the end of a lab were I'm provided this question to answer here's a step that's not the actual question but the question makes reference to it step 3 Using the pointer

asked by Kelly on June 1, 2009
20. Chemistry

I had a quiz today and one of the multiple choice questions was something like, "find the final temperature of aluminum when it is cooled" and then it gave you the specific heat capacity of aluminum, the mass of the aluminum, initial temperature, and

asked by a Canadian on February 21, 2013
21. Chemistry

The empirical formula for Brilliant Blie dye is C37 H34 N2 O9 S3 Na2, and the formula weight is 792.86 g/mol. How would you prepare a 4.73 X 10^-6 M solution of Brilliant Blue dye? How many grams of the dye do you need to add to a 1.00 L of water to make

asked by Hannah on October 12, 2011
22. Chemistry- test for presence of sulphate

I have a solution of Fe2(SO4)3, i.e. iron(III) sulphate solution. To test for the presence of the sulphate anion, nitric acid & barium nitrate were added. A white precipitate was obtained. Please help to check if the following equation is correct for the

asked by june on January 18, 2009
23. Chemistry

A 100.00 ml of volume of 0.500 M HCl was mixed with 100.00 ml of 0.500 M KOH in a constant pressure calorimeter. The initial temperature of individual acid and base was 23.0 oC. The final temperature after mixing was 25.5 oC. The specific heat of the

asked by Kelly on March 5, 2018
24. chemistry

The absorbance reading of an element is observed in an atomic absorption spectrometer. Would the readings increase, decrease or stay the same if: (please explain) Thank you a) viscosity of the solution increased or decreased? b) the solution had a lot of

asked by Emily on February 13, 2012
25. English

1. I can't concentrate on work. 2. I can't concentrate at work. 3. I can't concentrate (on something) at work. ------------------ Which one is correct? Does #1 mean #3?

asked by rfvv on June 18, 2016
26. Physics

A 0.0475 kg ice cube at −30.0°C is placed in 0.577 kg of 35.0°C water in a very well insulated container. The latent heat of fusion of water is 334 kJ/kg, the specific heat of ice is 2092 J/(kg · K), and the specific heat of water is 4184 J/(kg · K).

asked by Art on January 25, 2016
27. Chemistry

I have Sodium Benzoate and Benzyl Alcohol in a solution. I used an ether to separate the two. I know the alcohol dissolved into the ether and benzoate stayed in the aqueous solution. However, So my question is.. why the alcohol is able to dissolve better

asked by DL on October 24, 2009
28. Chemistry

A 36.0mL sample of 1.20 M KBr and a 56.0mL sample of 0.700 M KBr are mixed. The solution is then heated to evaporate water until the total volume is 60.0mL. What is the molarity of the KBr in the final solution?

asked by Cecelia on October 4, 2011
29. calculus-differential equation

Consider the differential equation: (du/dt)=-u^2(t^3-t) a) Find the general solution to the above differential equation. (Write the answer in a form such that its numerator is 1 and its integration constant is C). u=? b) Find the particular solution of the

asked by Jeff on February 5, 2008
30. Chemistry

A 36.0mL sample of 1.20 M KBr and a 56.0mL sample of 0.700 M KBr are mixed. The solution is then heated to evaporate water until the total volume is 60.0mL. What is the molarity of the KBr in the final solution?

asked by Cecelia on October 4, 2011
31. scatter plots

in 1994, the profit is \$250,000 in 1995, the profit is \$280,000 in 1996, the profit is \$240,000 in 1997, the profit is \$320,000 in 1998, the profit is \$310,000 this information is in a chart but charts don't work here so anyways [it looks something like

asked by kamilla on October 26, 2009
32. maths

in 1994, the profit is \$250,000 in 1995, the profit is \$280,000 in 1996, the profit is \$240,000 in 1997, the profit is \$320,000 in 1998, the profit is \$310,000 this information is in a chart but charts don't work here so anyways [it looks something like

asked by kamilla on October 26, 2009
33. Chemistry

I can't seem to get this problem, i really don't understand it Chemical reactions can also be coupled. The decreasing free energy of a spontaneous change can be stored in substance whose formation would not ordinarily be spontaneous. Living organisms have

asked by bobby on April 28, 2012
34. Chemistry

hen excess Ag metal is added to 0.246 L of 1.290 M Fe3+(aq) at 298K, the following equilibrium is established: Ag+(aq) + Fe2+(aq) Ag(s) + Fe3+(aq) (1) If the equilibrium concentration of Ag+ is 0.504 M, what is the value of K? K = (2) Using the value of K

asked by Shipaz on November 27, 2016
35. Physics

One boat tows another boat by means of a tow line, which is under a constant tension of 495 N. The boats move at a constant speed of 4.75 m/s. How much work is done by the tension in 1.10 min? Not sure how to apply the work-energy theorem. I assume

asked by Help on October 3, 2011
36. Physics

A girl places a stick at an angle of 60.0° against a flat rock on a frozen pond. She pushes at an angle and moves the rock horizontally for 2.00 m across the pond at a velocity of 4.00 m/s and a power of 160.0 W. What force did she apply to the stick? How

asked by Pat on February 12, 2012
37. math - gr 12

the social convenor has 12 volunteers to work at a school dance. Each dance requires 2 volunteers at the door, 4 volunteers on the floor, and 6 floaters. Joe and Jim have not volunteered before so the soicial convenor does not want to assign them to work

asked by joanna on February 23, 2009
38. chemistry

A buffer solution contains 0.283 M hypochlorous acid and 0.456 M potassium hypochlorite. If 0.0464 moles of perchloric acid are added to 225 ml of this buffer, what is the pH of the resulting solution ? (Assume that the volume change does not change upon

asked by Curtis on July 2, 2014
39. Chemistry

Determine the vapour pressure lowering at 25 degree Celsius of 1.25molality sucrose solution assume the solution behaves ideally (sucrose is C12H22O11). The vapour pressure of pure water at 25 degrees Celsius is 23.8torr ( hint 50.0g of sucrose was used).

asked by Wendy on August 13, 2018
40. Chem 3

Prepared by disolving 60g CaBr2 280g H2O the final volume of tje solution is 300ml. Calculate the mole of the solution, normality ,weight % of CaBr2,molality ,moles of fraction of CaBr2 ,moles fraction of H2O

asked by Lavena on August 14, 2016
41. Chemistry

A 360mg sample of sugar (molar mass of 180 g/mol) is dissolved in enough water to produce 200mL of solution. after the sugar is completely dissolved, you pour 50mL of this solution into a Burnette for use in an experiment. what is the molar concentration

asked by Jacke on July 2, 2016
42. chemistry

An ethylene glycol solution contains 18.2g of ethylene glycol (C2H6O2) in 85.4mL of water. Calculate the freezing point and boiling point of the solution. (Assume a density of 1.00 g/mL for water.)

asked by Anon on November 19, 2014
43. college general chem

If 15.0 of is dissolved in enough water to form 270 of solution, what is the molarity of the solution? What is the oxidation state of an individual sulfur atom in ? What is the oxidation state of an individual nitrogen atom in ?

asked by ronie on October 3, 2011
44. Chemistry

A solution contains 0.133 g of dissolved Lead. How many moles of sodium chloride must be added to the solution to completely precipitate all of the disolved lead? What mass of sodium chloride must be added?

asked by Ruslan on May 14, 2011
45. Algebra

Paula Scott, a massage therapist needs 3 ounces of a 20% lavender oil solution. She has only 5% and 30% lavender oil solutions available. How many ounces of each should Paula mix to obtain the desired solution?

asked by Lora on March 28, 2013
46. Chemistry

A solution is made by dissolving 26.7 g urea, a nonelectrolyte, in 301 g water. (The vapor pressure of pure water is 23.8 torr at 25°C and 71.9 torr at 45°C.) Calculate the vapor pressure of this solution at 25°C.

asked by Jack on May 6, 2015
47. chemistry

An ideal solution contains 40 mole % of A and 60 mole % of B at 80 degrees C. The vapor pressure of pure A and B at this temp are 480 torr and 890 torr. Calculate the vapor pressure of the solution.

asked by Anonymous on October 7, 2010
48. science

Calculate the volume of a conc. solution required to prepare 1 L 0.100 M HCl solution that was taken from a bottle of conc. HCl. The label on the bottle indicates 37.0% HCl, density of 1.18 g/mL. RMM for HCl is 36.5

asked by nayera hossam on May 28, 2019
49. Math

If a hallway is 90 feet long & 7 feet wide and it takes 1/2 ounce of cleaning solution to clean 1 square foot, how much cleaning solution is needed to clean the hallway?

asked by Jean on July 10, 2014
50. Algebra 2

a chemistry lab assistant wants to prepare 10 liters of 48% acid solution. in stock he has 80% and 40% acid solutions. how many liters of each in stock solution should he mix to prepare a 10-liter mixture?

asked by Jennifer on January 24, 2011
51. math help

okay can someone set this up for me and help me understand it please.I tried it but i am clueless please show me how to solve this? The number of banks in the United States has dropped about 30% since 1992. The following data are from a survey in which x

asked by mathstudent05 on May 25, 2007
52. Financial accounting

What does rule of thumb evaluation method mean? no matter how many times i read this, I get different answers..and how would I calculate this or what is the formula for the rule of thumb evaluation method??? I am supposed to compute this example: Arcadia

asked by anonymous on March 5, 2010
53. Chemistry

Enough of a monoprotic acid is dissolved in water to produce a 0.0195 M solution. The pH of the resulting solution is 6.24. Calculate the Ka for the acid. Also, the answer is not 1.7 * 10 ^ -11 The response is: You treated the initial concentration as 0.

asked by chem1 on April 22, 2012
54. chemistry

2KI+Pb(NO3)2=2KNO3+PbI2 suppose a solution containing 1.25g of KI is combined with a solution containing 2.42g Pb(NO3)2 _what mass of the yellow PbI would result what is the limiting reactant How much in grams of the excess reactant was used how much in

asked by may on February 10, 2013
55. Math

Using the Borda Count Method, find the winner of the election A has 3106 votes B has 3134 votes C has 2816 votes D has 3024 votes

asked by Meredith on July 23, 2012

Which of the following is not important in SQR3 method? A.increse in the speed of reading B.absorption of information C.improvement of reading skills D.increse in retention I got A what do you think?

asked by ciara on September 26, 2011

Which of the following is not important in SQR3 method? A.increse in the speed of reading B.absorption of information C.improvement of reading skills D.increse in retention I got A what do you think?

asked by ciara on September 25, 2011
58. Math

Using the Borda Count Method, find the winner of the election A has 3106 votes B has 3134 votes C has 2816 votes D has 3024 votes

asked by Meredith on July 23, 2012
59. character education

Which of the following is the most basic tool in successfully working with others? technology language organization B? Which of the following is the most basic method of communication? language mathematics imagery C?

asked by Bri on November 29, 2017
60. Biology

The scientific method is an idealized, but not entirely accurate, description of science True or false? Im unsure because nothing in science is accurate but many tests can done to see the different results...

asked by Biology on September 7, 2019
61. Calculus

I am asked this: How can you do the cross product of two-dimensional vectors. Well I would have to guess that you just add a 0 in order to follow the cross product method, but this way there is no third component...is this right?

asked by Derek on June 30, 2008
62. pesh uni

2x1+2x2+2x3=0 -2x1+5x2+2x3=1 8x1+x2+4x3=1 gauss elimnation method plz sol any one

asked by arshad hussain on October 2, 2016
63. math

at 8:00am the smiths left a campground, driving at 48 mi/h. at 8:20am the garcias left the same camp ground and followed the same route, driving at 60 mi/h. at what time did they overtake the smith's? How far did the Smiths drive from 8 a.m. to 8:20 a.m.;

asked by jennifer on November 28, 2006
64. math

i don't get this question consecutive integers are integers that differ by one. you can represent consecutive integers as x,x+1,x+2 and so on. write an equation and solve to find 3 consecutive integers whose sum is 33 how do you solve this

asked by Sara! on May 24, 2010
65. Math problem

You have \$60.00 in your wallet and want to buy some new CDs. If the CDs are \$11.00 each, what number of CDs, x, can you buy? Write and solve an inequality. Can you explain this problem step by step? Trying to help my cousin solve this....:/

asked by Princess Anna on January 8, 2014
66. math

If you have a circle graph 15 students like basketball 10 like soccer and 5 like softball. Write a ratio problem that relates to this graph and solve the problem. ratio would be 5/6,1/6,1/3 how would a solve this if this is the right ratio. Thank you so

asked by Jill on November 7, 2010
67. Math

Write an equation for the problem. And solve it. Sierra caught 3 times as many fish as Lily. They caught a total of 20 fish. 3x*2=20 ---is this right? if it is plz help me solve it thanks u You can say 3n+n=20 n= lily's fish.

asked by Maria on November 24, 2006
68. Microeconomics

This is a 5 part question; (a-e)The question reads: Suppose that a market is described by the following supply & demand equations: Qs=2P & Qd=300-P a) Solve for the equalibrium price & quantity. (I think I understand this process.) b)Suppose that a tax of

asked by Diane on July 28, 2008
69. math

it takes a plane 40 min longer to fly from boston to los angeles at 525 mi/h than it does to return at 600 mi/h. how far apart are the cities? distance = rate*time B to LA = 525mi/hr*t La to B = 600mi/hr*t The distance is the same no matter which way we

asked by joe on November 28, 2006
70. psychology

A typical act of servant leader should be to: a) work for salary no higher than that of group members. b) expect group members to act like personal servants c) k group members what they want to achieve d)volunteer to do custodial work for the department Is

asked by vedrana on March 1, 2010
71. Physics

Hello, I really don't get something about work and I would like that someone help me, Please. .. Well I have an exercise about two objects that are connected by an ideal rope that pass through a pulley that has a moment of inertia, so my problem is: when I

asked by Ross on December 24, 2016
72. psychology

A typical act of servant leader should be to: a) work for salary no higher than that of group members. b) expect group members to act like personal servants c) k group members what they want to achieve d)volunteer to do custodial work for the department Is

asked by vedrana on March 1, 2010

Getting back in time, when Nancy wa just about to open her account, and assuming she could choose among credit sources that offered differednt monthly balance determinations, and assunming further that Nancy would increase her outstanding balance over

asked by Manny on June 15, 2006
74. Discrete Structures

a. Show that in any set of n integers, there is a subset whose sum is divisible by n. b. Show that for any integer n, there is an integer whos digits (in decimal representation) consist of only 0 and 1. I don't think the first can be proved. However, in a

asked by Lolita Sams on July 2, 2005
75. writeacher spanish

Sra McGuin - had been helping me review my work she asked me what I was trying ot say in english _I had done the entire assignemtn but to help me she needed the english - I would never ask someone to do my work point of is my most memoable day on the

asked by sam on December 6, 2008
76. Math

How many cubic centimeters of ice cream can an ice cream cone (within the cone) hold if its height is 7 centimeters and the diameter of its base is 4 centimeters? Give solution accurate to the nearest hundredth. Include correct units with your solution

asked by Geena on May 11, 2011
77. Chemistry

calculate oh- and ph in a solution in which dihydrogen phosphate ion is 0.335 M and hydrogen phosphate is 0.335 M. This is a homework question, where I have the solution, which is 0.335/0.335, which I get, but then I am supposed to multiply this (1)by a

asked by Jessica on April 9, 2015
78. chemistry

a ferric phosphate solution is prepared by adding 2.4 g of ferric phosphate to a volumetric flask and bringing the final volume to 1.00L by adding water having a phosphate concentration of 1.0 mg/L. what is the concentration of soluble iron in this

asked by Anonymous on January 23, 2011
79. Gen Chemistry

52.8 mL of a calcium chloride solution with unknown concentration was treated with phosphoric acid to remove all of the calcium ions in the form of a precipitate. The precipitate was filtered, dried and was found to have the mass of 3.9565 g. What was the

asked by Kevin on December 11, 2010
80. Chemistry pH, acids, and bases

Trichloroacetic acid (CCl3CO2H) is a corrosive acid that is used to precipitate proteins. The pH of a 0.050 M solution of trichloroacetic acid is the same as the pH of a 0.040 M HClO4 solution. Calculate Ka for trichloroacetic acid. I just don't know where

asked by Ryan on October 24, 2016
81. Chemistry

A solution contains 3.75g of nonvolatile pure hydrocarbon in 95g acetone. The boiling points of pure acetone and the solution are 55.95C and 56.50C, respectively. The molal boiling point constant of acetone is 1.71 C*kg/mol. What is the molar mass of the

asked by James on February 10, 2011
82. Chemistry

A 2.764 g sample containing only iron and aluminum metal was treated with acid to form Al(+3) and Fe(+2). The sample was then titrated with a potassium dichromate solution (only the Fe(II) will react with the dichromate). The sample was found to be

asked by Jessica on October 16, 2014
83. Chemistry ...ASAP please

a ferric phosphate solution is prepared by adding 2.4 g of ferric phosphate to a volumetric flask and bringing the final volume to 1.00L by adding water having a phosphate concentration of 1.0 mg/L. what is the concentration of soluble iron in this

asked by medina on January 23, 2011
84. Algebra

1.Is (0,3) a solution to the equation y=x+3? A.yes*** B.No 2.Is (1,-4) a solution to the equation y=-2x? A.yes B.No*** 3.Look at the following points (4,0),(3-1),(6,3)(2,-4) Which are solutions to y=x-4?chose all correct answers A.(6,3) B.(4,0) C.(3,-1)***

asked by GummyBear on August 31, 2015
85. chemistry

A solution is prepared by dissolving 104.1 grams of barium chloride, BaCl2 in 1000. grams of water? What is the boiling point of this solution? [The boiling point elevation constant for water is 0.52°C/mole solute in 1000g of water]

asked by Natalya on October 30, 2014
86. For Dr.Bob222 (chem work)

What is the pH of a solution of 120 ml 0.15M acetic acid to which we add 30mL 0.2M NaOH? CAN YOU CHECK MY WORK PLEASE? 0.15 mol/L * 0.12 L = 0.018 mol acetic acid 0.2 mol/L * 0.03 L = 0.006 mol NaOH 0.018 - 0.006 = 0.012 mol of acetic acid in excess pH =

asked by Gulzaman on August 27, 2007
87. Biology

Can someone check my answers please? 1. Which of the following is not a characteristic of life? A. Maintains homeostasis B. Composed of cells C. Composed of atoms*** D. Carries out metabolism 2. Which of the following represents a correct sequence of

asked by Brooklyn on September 7, 2017
88. Calculus

Find the area of the enclosed by the y-axis and the curves y=x^2 and y=(x^2+x+1)*e^(-x). ...I'm supposed to use tabular method to find the area. But I'm not sure where to start with this question. I drew the graph for y=x^2, but that's about it. Help!

asked by Anonymous on October 30, 2010
89. Math

Express the repeating decimal 0.513 (the 13 is repeating so the decimal is 0.5131313131313...) as a fraction in lowest terms using the infinite geometric series method.

asked by Haile on September 29, 2011
90. java

Write the Java code of the method Mirror that takes one 2-dimentional array (squared matrix) A1, and returns 2D array A2 which is the mirror image of A1.

asked by Noura on April 24, 2017
91. math

you have the numbers from 1 through 9. divide them into 3 groups so that each group has the same total after adding the digits in them.. i got until: adding all the digits makes 45 and and divided by 3 so each will be 15, but what next? any method for that

asked by edina on September 10, 2015
92. Java code

Write the Java code of the method Mirror that takes one 2-dimentional array (squared matrix) A1, and returns 2D array A2 which is the mirror image of A1.

asked by ahmad on March 31, 2017
93. Physics

A student accurately uses the method for combining vectors. The two vectors she combines have magnitudes of 55 and 25 units. The answer that she gets is either 85, 20, or 55. Pick the correct answer, and explain.

asked by Anonymous on September 27, 2010
94. science

Goose grass grows tightly around other plants such as hawthorn bushes. suggest two reasons why this method of growth is an advantage for the goose grass.

asked by Amy on September 24, 2017
95. newton's method

the iteration formula x_(n+1)=x_(n) - (cos(x_(n)))(sin(x_(n))) + R(cos(x_(n))^2)x_n, where R is a positive constant, was obtained by applying Newton's Method to some function f(x). What was f(x)? What can this formula be used for?

asked by Julie on September 28, 2008
96. Chemistry

Which salts cannot be prepared by an acid-alkali titration method? And why? A. Sodium sulfate B. Ammonium sulfate C. Potassium nitrate D. Iron(II) nitrate

asked by HandsomeLala on October 19, 2012
97. physics

In an elastic 1 -dimensional collision, a mass m1=3 kg with velocity v1 = -4 m/s collides with a mass m2 = 5kg at rest. What are the velocities v1' and v2' after the collision? I would like to your method of solving this problem. Thanks.

asked by Alice on December 28, 2013
98. Health (Ms. Sue)

Describe an effective refusal method you could use if someone were to tell you, "Here, try these new cigarettes, almost everyone in our school smokes these." A: I would use refusal skills and simply respond by saying, "No, thank you. I would rather be

asked by Anonymous on November 18, 2013
99. Math

An asset is purchased for\$50,000.It has an estimated useful life of 12 years and a salvage value of \$5,000. What is the annual depreciation of the asset using the straight-line method?

asked by Kara on July 7, 2009
100. english

When a paragraph tells a story, which method of organization is being used? A. specific-to-general order B. spatial order C. importance order D. chronological order my answer is B

asked by Amber on February 7, 2017