# 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 761
1. ## Finance

Please could you help me solve this Suppose you have \$100 in an interest bearing account earning 10% interest. How much would you have after the first year under the following scenarios? . annual compounding (every 12 months)- semi-annual compounding

asked by Sammy on October 7, 2015
2. ## Math

It is 405 miles from Minneapolis, Minnesota to Chicago, Illinois. It is 692 miles from Minneapolis to Cincinnati, Ohio. Cincinnati is how many miles farther from Minneapolis than Chicago? Write an equation and solve the problem

asked by Sandy on October 6, 2013
3. ## math

use a trial and error strategy to solve this problem.two years ago sam was two-thirds of pam's age. in three years sam will be three-fourths of pam's age. in 20 years the sum of their ages will be 69. how old is sam?

asked by kasia on October 28, 2015
4. ## probability

for a small regional airline, the number of claims for missing luggage averages 70 per week. a. what is the probability that on a given day, there are fewer than 3 claims made against the airline? b. what is the probability that there are more than 3

asked by Jen on January 22, 2013

Does George think the new job will last a while? My Answer- Yes. What clues does he give? He says that they are not like the other guys. OR....... No, because he knows what Lennie could do, like in Weed. He knows Lennie's a lot of trouble and that he'd be

asked by Anonymous on August 22, 2007
6. ## Physics

The anode (positive terminal) of an X-ray tube is at a potential of +105000 V with respect to the cathode (negative terminal). (a) How much work (in joules) is done by the electric force when an electron is accelerated from the cathode to the anode? J (b)

asked by anybody on February 1, 2012
7. ## Physics

The anode (positive terminal) of an X-ray tube is at a potential of +125000 V with respect to the cathode (negative terminal). (a) How much work (in joules) is done by the electric force when an electron is accelerated from the cathode to the anode? (b) If

asked by Elise on April 19, 2014
8. ## Physics 1

A skier of mass 109 kg travels down a frictionless ski trail. a)If the top of the trail is a height 218 m above the bottom, what is the work done by gravity on the skier? _____J b)Find the velocity of the skier when he reaches the bottom of the ski trail.

asked by John on October 8, 2012
9. ## Repost-Physics 1

A skier of mass 109 kg travels down a frictionless ski trail. a)If the top of the trail is a height 218 m above the bottom, what is the work done by gravity on the skier? _____J b)Find the velocity of the skier when he reaches the bottom of the ski trail.

asked by John on October 9, 2012
10. ## social studies

Countries in the world have to work together to find solutions to sharing resources. How can countries of the South contribute? How can countries of the North contribute? How can you contribute? This is a question from my social's text book. I can't seem

asked by rakhi on May 18, 2010
11. ## Math

Decoration:? Candy:45 Invitation:45 Music:40 Party hall rental:80 Food:65 Prizes:30 Costumes:40 Mary is planning a costume party. she spent \$375.00 a show on the graph. How much of the money was spent, to the nearest Dollar, on the following items? 1.on

asked by Sunji on January 27, 2018
12. ## Microeconomics

If fixed cost is \$8,000, variable cost is \$5,000 at an output of 2 and \$9,000 at an output of 3, how much is marginal cost at an output of 3? Can someone show me how to do the formula step by step?

asked by Lisa on February 23, 2013
13. ## Physics

Scientists want to place a 3100 kg satellite in orbit around Mars. They plan to have the satellite orbit a distance equal to 1.9 times the radius of Mars above the surface of the planet. Here is some information that will help solve this problem: mmars =

asked by physics on October 14, 2018
14. ## Physics

Hockey puck A initially travels at  v(initial) = 6.2 m/s in the horizontal direction (East) on a smooth horizontal ice before striking hockey puck B which is initially at rest, off-center.  After the collision, A is deflected at Î¸ =  23 degrees

asked by AH on October 25, 2012
15. ## Math

I can't calculate 1 as the answer given to the following problem. I keep getting 2. Can you show me where am I going wrong? The spread of rumor among 100 people can be approximated by the equation log10(x) – log10(100-x) = (0.1)t – log10(90), where x

asked by Chris on July 3, 2008
16. ## Physics - Kinematics

Need some help with my homework! Question 7 a) Acceleration is the rate of change of velocity Use your definition in (a) to show that v = u + at, where v is the final velocity, u is the initial velocity and a and t are the acceleration and the time

asked by Iman on April 17, 2012
17. ## Vaux-le-Vicomte Statue

The gardens of Vaux-le-Vicomte are terraced and end at a hill overlooking canals and grottos. In the center of this beautiful hill is a statue of mythological significance. Who is the subject of the statue, and what event (or feat, shall we say), does the

asked by Joe on October 19, 2006
18. ## Physics

To move a large crate across a rough floor, you push on it with a force (F) at an angle of 21 degrees below the horizontal. Find the force necessary to start the crate moving, given the mass of the crate is 32 kg and the coefficient of static friction

asked by blahblah on October 30, 2014
19. ## Chemistry

How do you convert energy into to joules (can you please give me an example with showing me your i.e how you did it, in full detail) How do you find specific heat numbers? Your questions beg for amplification. Please expand. Energy is measured in joules

asked by Buddy oh Pal on September 24, 2006
20. ## Math

Peter notices that the teenage students who are members of the math club have ages whose product is 611520. How many members does the club have? Extensions: Is it true that whatever number replaces 611520 that this problem has a unique solution? Suppose

asked by Claire on February 7, 2014
21. ## Social Studies

In the text, You read this about the bank of the united states: The bank of the united states had been a subject of dispute since its early days. The bank had greate over the nations banking system because it controlled loans made by state banks. When the

asked by LUIGI on October 17, 2016
22. ## s.s

In the text, You read this about the bank of the united states: The bank of the united states had been a subject of dispute since its early days. The bank had greate over the nations banking system because it controlled loans made by state banks. When the

asked by jordyn on October 30, 2018
23. ## Math (Calculus II)

Rate of change proportional to size: P(t)= P(i)e^kt, where P is population, t is time, k is a constant and P(i) is the initial p or "p naught"; sorry, I don't know the typed notation for subscript. By the way, p(i) is given as 100. The problems are a.)

asked by John on September 4, 2010
24. ## Math (Calculus II)

Rate of change proportional to size: P(t)= P(i)e^kt, where P is population, t is time, k is a constant and P(i) is the initial p or "p naught"; sorry, I don't know the typed notation for subscript. By the way, p(i) is given as 100. The problems are a.)

asked by John on September 5, 2010
25. ## Algebra 2 ..

1)When Twinkle Toes Tony kicked a football, it landed 100ft from where he kicked it. It also reached a height of 125 ft. Write an equation that, when graphed, will model the path of the ball from the moment it was kicked until it first touched the ground.

asked by Anonymous on December 26, 2012
26. ## Chemistry

What atomic mass is equivalent to seven helium nuclei? What atomic number is equivalent to seven helium nuclei? Now subtract that from the atomic mass and number of ununhexium suppose the isotope of ununhexium ( find the symbol for this as well) undergoes

asked by bobpursley on February 21, 2007
27. ## programming

I have created a Database called Business with the 2 tables as follows: dbo.Orders ID OrderID ItemName Quantity Price SalesID dbo.Sales SalesID FIrstName LastName OrderID I need to create a stored procedure to show Total Sales of each sales, including

asked by Lisa on May 2, 2012
28. ## Science

A man wakes from sleep, hears a strange noise, becomes alarmed and runs downstairs. Which of the following describes the corresponding events taking place in his nervous system ? 1)sensory neuron>spinal neuro>brain>motor neuron 2)sensory

asked by Jamie on December 6, 2017
29. ## Social STUDIES

due to continued growth, our local claims office is interviewing applicants who are interested in processing medical claims. background in bookkeeping, accounting, banking, or medical terminology and/or keyboard skills, is preferred. a stable work history

asked by Anonymous on July 7, 2011
30. ## physics

When a 2.60-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 2.30 cm. (a) What is the force constant of the spring? (b) If the 2.60-kg object is removed, how far will the spring stretch if a 1.30-kg

asked by alexandra on April 21, 2010
31. ## Physics

A car travels at a speed of 25 m/s on a flat stretch road. The driver must maintain pressure on the accelerator to keep the car moving at this speed. The car's engine is doing work on the car, yet the kinetic energy of the car is not changing. What is

asked by Rachel. on August 5, 2013
32. ## Physics

A car travels at a speed of 25 m/s on a flat stretch road. The driver must maintain pressure on the accelerator to keep the car moving at this speed. The car's engine is doing work on the car, yet the kinetic energy of the car is not changing. What is

asked by Rachel. on August 5, 2013
33. ## Physics

When a 2.00-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 3.17 cm. (a) What is the force constant of the spring? N/m (b) If the 2.00-kg object is removed, how far will the spring stretch if a 1.00-kg

asked by Muriel on February 26, 2014
34. ## Physics

When a 3.00-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 3.07 cm. (a) What is the force constant of the spring? N/m (b) If the 3.00-kg object is removed, how far will the spring stretch if a 1.50-kg

asked by Allie on September 27, 2011
35. ## Language Arts (ASAP)

3. In "All Together Now," Jordan uses appeals to emotion and appeals to reason to try to persuade her readers that her views are important. In a paragraph, cite one example of each kind of appeal in her work. Then, explain whether you find Jordan's appeals

asked by Jason on December 6, 2016
36. ## physics

A 69.4-kg skier coasts up a snow-covered hill that makes an angle of 24.3° with the horizontal. The initial speed of the skier is 7.04 m/s. After coasting 1.78 m up the slope, the skier has a speed of 3.04 m/s. Calculate the work done by the kinetic

asked by Kim on November 30, 2011
37. ## physics

A uniform plank of length 5.6 m and weight 203 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 440 N walk on the overhanging part of the plank before

asked by meredith on June 1, 2007
38. ## Managerial Economics

Which one is the best answer 1.Agreeing to be part of a price-fixing cartel is: a.unlikely to yield maximum prices or profits for very long time b.difficult to maintain, but almost guaranteed to ensure maximum profit c.illegal in most countries d.a and b

asked by Linda on June 22, 2009
39. ## Math

A city council candidate asks his campaign staff to gather some polling data. they survey a sample of voters to determine voters' attitudes. Which survey question does not show bias? Don't you think our candidate is the most qualified? Do you think

asked by Kelly on May 29, 2013
40. ## math

A Competition Onstage Ever since Lisa auditioned for the musical Annie in the third grade, she had been seriously interested in musical theater. She loves to sing, dance, and act. She performs in two or three shows in her city each year. This year, Lisa

asked by anonymous on October 15, 2013
41. ## algebra

back from break, need help again The height , h, in feet, of a bottle rocket is modeled by: where t is the time in seconds. A. Factor the expression. H = -16t^2 + 60t = 4t(-4t + 15) B. What is the height of the rocket after 2 seconds? When t = 2 H = 4t(-4

asked by Anonymous on June 14, 2017
42. ## chemistry

10.0 g sample of p-dichlorobenzene, a component of mothballs, is dissolved in 80.0 g of benzene, C6H6. The freezing-point of the solution is 1.20oC. The freezing point of benzene is 5.48oC. The molal freezing –point constant, kf, for benzene is 5.12oC/m.

asked by Jim_R on August 6, 2009
43. ## Biology(everyone answer i need alot of opinions)

Your roomate was given an antibiotic for strep throat. After 3 days she is feeling fine and asks you if she should stop taking the antibiotic and save the pills for next time she has a sore throat. Your response should be... A)yes, quit taking them because

asked by JEFF BOMB on December 5, 2009
44. ## Chemistry

I'm reviewing for a test and I'm on Le Chatelier's principle. Decreasing the temperature of an exothermic reaction shifts the equilibrium to the right? I understood this weeks ago but now I can't remember. Wouldn't decreasing the temperature cause there to

45. ## Math

can positive and negative X axis or positive and negative y axis have different scales? I mean that is it possible for positive and negative sides of a particular axis(X or Y) to have different scales if numbers to be plotted on one side large and small on

46. ## Physics (my last problem)

A 3.4 kg ogject to the right at 3.5 m/s hits a stationary object of mass 2.7 kg. After the collision the 2.7 kg object moves to the right at 1.8 m/s. A) What is the final verlocity of the 3.4 kg object? B) What is the total kinetic energy og the objects

asked by Allison on December 19, 2011
47. ## Physics Help Please --- Telescope

An astronomical refracting telescope is made from two lenses. the objective lens has a focal length of 114 cm, and the eyepiece lens has a focal length of 17 cm. a) What is the total length of the telescope? b) What is the angular magnification of the

asked by Tanya on May 2, 2015
48. ## math-calc

Two sides of a triangle have constant lengths a and b, and the angle between them is theta. What value of theta will maximize the area of the triangle? so far i have the formula and the derivative. A=.5absin(theta) A'=.5abcos(theta) then i set the

asked by Nathaniel on October 26, 2008
49. ## Calculus

Two sides of a triangle have constant lengths a and b, and the angle between them is theta. What value of theta will maximize the area of the triangle? so far i have the formula and the derivative. A=.5absin(theta) A'=.5abcos(theta) then i set the

asked by Nathaniel on October 26, 2008
50. ## Math

In the triangle ABC, AC=2cm, AB=x cm and angle ABC=π/2 rad. 1. Given that angle BAC=ϴ rad, and that ϴ is a sufficiently small angle, show that x≈ a + bϴ^2, where a and b are constants to be determined. 2. For this part, ϴ is not assumed to be a

asked by John on November 30, 2016
51. ## Math

In the triangle ABC, AC=2cm, AB=x cm and angle ABC=π/2 rad. 1. Given that angle BAC=ϴ rad, and that ϴ is a sufficiently small angle, show that x≈ a + bϴ^2, where a and b are constants to be determined. 2. For this part, ϴ is not assumed to be a

asked by John on December 1, 2016
52. ## Marketing

For my project I am working on why my jeep wrangler is designed for my target market which is between 25-35, adults with young kids, adventurous, fun, family oriented. And I need to provide statistics or evidence that shows that my target market isnt made

asked by Maya on April 2, 2018
53. ## Chemistry - Answer Check

The two common chlorides of Phosphorus, PCl3 and PCl5, both important in the production of other phosphorous compounds, coexist in equilibrium as shown in the balanced chemical reaction below: PCl3 (g) + Cl2 (g) PCl5 (g) At 250 C, an equilibrium mixture in

asked by Anonymous on May 17, 2016
54. ## physics

On the once popular show “Knight Rider,” the tricked-out car (for the 80s, anyway), Kit, 1. drives up a ramp and into the back of a semi truck while the truck is moving. A viewer once expressed disbelief that this is possible. Assuming that Michael

asked by reddy on October 27, 2015
55. ## SS

Drag the words to the boxes in the sentences to show how religion spread throughout Southeast Asia. After the Han Chinese conquered what is now Vietnam, the Vietnamese people adopted1 ______. In the Philippines, a sultanate controlled the area which led to

56. ## Social studies

Drag the words to the boxes in the sentences to show how religion spread throughout Southeast Asia. After the Han Chinese conquered what is now Vietnam, the Vietnamese people adopted1 ______. In the Philippines, a sultanate controlled the area which led to

57. ## World History

What impact did the everyday Russian citizen have on the Russian Revolution? Does the Russian Revolution show us why history should discuss the everyday citizen and their impact, or should history stick to focusing on the leaders?

asked by Ariana on October 22, 2018
58. ## statistics

Certain statistics measures are unbiased. Which of the following show three unbiased estimators? a. variance, standard deviation, median b. mean, variance, proportion c. mean, median, range d. range, standard deviation, median

asked by maczindahouse on February 20, 2019
59. ## Symbolic Logic

1) Give a general proof to show that for all sentences X and Y and for every consistent set Σ of sentences, if X and Y are logical consequences of Σ, then the set {X, Y} is consistent. 2) Let C be a logical consequence of the set {P1, P2, P3} and of the

asked by Tom on February 12, 2011
60. ## Math

An archer shoots an row into the air such that it's height at any time, t, is given by the function h (t)= -16t^2+kt+3. If the maximum height of the arrow occurs at time t=4, what is the value of k? A) 128 B) 64 C) 8 D)4 What I did: H (t)= -16t^2+kt+3 4=

asked by Sarah on October 28, 2017
61. ## Physics - AHH!!!

Jimmy has caught two fish in Yellow Creek. He has tied the line holding the 4.30 kg steelhead trout to the tail of the 1.39 kg carp. To show the fish to a friend, he lifts upward on the carp with a force of 87.7 N. What is the tension of the rope

asked by Anonymous on October 26, 2008
62. ## Science/Math

7. A student measures the mass of a paper clip. The student’s data table is shown below. The accepted value for the paper clip’s mass is 1.14 g. Trial # Mass 1 2.45 g 2 2.40 g 3 2.42 g Which of the following best describes the student’s measurements?

asked by Algalla on September 12, 2017
63. ## physics

A 18.0-kg cart is moving with a velocity of 7.30 m/s down a level hallway. A constant force of -13.0 N acts on the cart and its velocity becomes 3.30 m/s. (a) What is the change in kinetic energy of the cart? 1 . J (b) How much work was done on the cart? 2

asked by Amelia on May 10, 2012
64. ## mathematics on sports

can anyone provide me with some sources which has information on how mathematics has been used on sports? e.g., trig can help to calculate the best angle to throw a ball or something, the speed of running can affect the height of high jump etc. etc.? any

asked by holly on August 2, 2007
65. ## Math

Use the following table to answer the questions. (Give your answers correct to two decimal places.) x 1 1 3 3 5 5 7 7 9 9 y 3 2 6 1 3 3 3 2 5 3 (a) Find the equation of the line of best fit. y hat = + x (ii) Graph this equation on a scatter diagram. (Do

asked by Tracy on June 28, 2013
66. ## 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 885 J of energy, to what volume will the gases expand against a constant pressure of 645 torr if all the

asked by Brandon on October 22, 2012
67. ## Language

Two very good family friendly movies. Toy story is about toys that talk. Inside out is about charters that are in are brain. Inside out a toy story has a lot in common. They both have sadness and joyful moments the are funny and family friendly and the

asked by Mia on January 21, 2016
68. ## Math

There are 12 students interested in creating a shoe shining club. There will be a president, a vice-president, 2 shoe shiners, 2 polish selectors, and the rest will work on advertising. How many ways can these positions be filled? I did:

asked by Anonymous on January 17, 2018
69. ## science e.m.f.?

please explain to me what is e.m.f. e.m.f. stands for electromotive force. It is the work done per unit charge (Joules per Coulomb) by an electric field when electric charge goes from point A to point B. It is measured in Volts. 1 Volt = 1 Joule/Coulomb If

asked by minerva on January 17, 2007
70. ## Health Information

You own a company in a state where state funds aren't mandated for employee health insurance. What's one option for providing your employees with health care coverage for work-related injuries? a. medicaid plans b. referrals to other network groups c.

asked by Katy on August 9, 2010
71. ## English

is this a good thesis statement for a paper about Dave Grohl from the Foo Fighters. In my paper i want to include the work he put into his career, controversy after Kurt Cobain's death and success of the foo fighters. this is what i have so far: Although

asked by monica on September 25, 2012
72. ## Grammar and Composition

please help me with this && check what i have: List 10 verbs for the word "said" that make it more specific. 1. supposed 2. whispered 3. told 4. spoke 5. believed 6. announced 7. claimed 8. conveyed 9. mentioned 10. told List 10 nouns for the word

asked by y912f on October 16, 2009
73. ## Chemistry

I havent been at school for 8 days due to somthing wrong with my heart, but the teachers gave me work. I have no clue how to do them. I really need help please, There all due tomarrow. Ammonia is formed by reacting nitrogen and hydrogen gases. How many

A field is bound on one side by a river. A farmer wants to enclose the other three sides of the field with fence in order to create a rectangular plot of land for his cows. If the farmer has 400m of fence to work with, determine the maximum possible area

asked by Sarah on May 7, 2014
75. ## Physics

A 400.0 KG mass experiences a horizontal push force of +720N And friction force of 320N A) assuming the mass is initially moving at 5.0 m/s far will it travel in 6.0 s? B) how much work does the 720.0 newton force do over the distance determine in part a?

asked by Anonymous on October 20, 2015
76. ## Chemistry

Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 50. cm3. If the combustion of this mixture releases 990. J of energy, to what volume will the gases expand against a constant pressure of 645 torr if all the

asked by Sam on October 13, 2011
77. ## Math

1. You need \$200,000 to retire in 10 years. You can invest monthly amounts at 5% APR at work. How much should you contribute each month? 2. A friend creates an IRA with an APR of 6.25%. She starts at age 25 and deposits \$50 per month. a) How much will her

asked by Kim on November 14, 2013
78. ## College Chemistry

Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 50. cm3. If the combustion of this mixture releases 955 J of energy, to what volume will the gases expand against a constant pressure of 675 torr if all the

asked by Amanda on October 31, 2011
79. ## Physics

A beam of unknown charged particles passes at right angles to the direction of magnetic field of 9.0x10^-2 T. If the speed of the particles is 3.0 x10^4m/s and the force experienced is 8.64x10^-16N, how many electric charges are carried by one particle? my

asked by sophie on April 22, 2009
80. ## physics

problem says that a cannon ball is fired at a 30 degree angle off a 10 meter high wall at 80 m/s. Use work and energy to find it's impact speed. I worked out this out with the equation: (1/2)(mass)(initial velocity)^2 + mgy = (1/2)(mass) (final velocity)^2

asked by Taylor on November 9, 2010
81. ## Physics Mechanics

A 2.30 kg block is acted upon by a horizontal force F(x) = 30.0 - 10.0x where the force is measured in Newtons if x is measured in meters. The coefficient of kinetic friction between the block and the flat surface is 0.170. The block is initially at x = 0

asked by Aya Serghosian on October 23, 2014
82. ## physics

when a 2.50 kg object is hung vertically on a certain light spring described by hookes law the spring stretches 2.76 cm. A) what is the force constant of the spring. B) if the 2.50 kg object is removed how far will the spring strecth if a 1.25 kg block is

asked by joe on November 6, 2011
83. ## Chemistry

I am looking at the delta H chart to calculate delta H of reactions. When doing one reaction, I came across a species that was not included in the chart: SiO4. What do I do? There is no SiO4. SiO2 perhaps, OR, you have been asked to calculate a theoretical

asked by Taasha on August 9, 2007
84. ## intermediate technology

You have just written a ten-page report for your supervisor. The report outlines the total sales made by your team made in the past year, sales by region, and sales by quarter. While it is important to write out the detail of each category of sales in

asked by tavarus on July 10, 2012
85. ## science

18. Which of the following best describes the overall function of hormones? A. To control physiological processes in the body B. To provide a pathway for nerve messages C. To stimulate the growth and maturation of body organs D. To determine masculine or

asked by Reds on November 12, 2010
86. ## Chemistry

My Chem professor is out for the weekend and I'm confused about what the question is asking or the equations needed... A 10.0-g block of pure nickel (Cp = 0.445 J/g-°C) is brought to each of the temperatures below. A sealed beaker containing 15.0 g water

asked by DeeDee on January 26, 2013
87. ## chemistry

Would you expect the solubility of PbCl2 in water to change dramatically if it were to be dissolved into a solution of 3.091×10−4 M KCl? Yes, the solubility of PbCl2 would decrease dramatically. Yes, the solubility of PbCl2 would increase dramatically.

asked by ssss on May 4, 2013
88. ## Chemistry

A student titrates 0.025 M KOH into 50.00 ml of a solution of unknown weak acid HA. Equivalence point is reached when 30.00 ml of the KOH has been added. After 15.00ml of the KOH has been added the pH of the mixture is 3.92. A. What is the concentration of

asked by Patrick on March 10, 2011
89. ## Chemistry

The equation for lowering the freezing point of a solvent is given in your manual. Given that the freezing point for the pure solvent is 79.4 °C , the molality is 0.1 m , and the freezing point depression constant is 6.9 °C/m , determine the freezing

asked by Asia on September 13, 2015
90. ## chemistry

For the reactions that occurred spontaneously in the individual tables, balance these reactions assuming they are in an acidic solution. Reaction 1: Cu I^- Ag Br^- Reaction 2: Zn Pb Cu Ag Reaction 3: Cl2 Br2 I2 Reaction 1 I 2(aq) Cu2 + (aq) Ag + (aq) Br2

asked by Joseph on April 15, 2008
91. ## Chemistry

A student titrates 0.025 M KOH into 50.00 ml of a solution of unknown weak acid HA. Equivalence point is reached when 30.00 ml of the KOH has been added. After 15.00ml of the KOH has been added the pH of the mixture is 3.92. A. What is the concentration of

asked by Patrick on March 10, 2011
92. ## Algebra

the learning curve describes the rate at which a person learns certain tasks. If a person sets a goal of typing N words per minute (wpm), the length of time t (in days) to achieve this goal is given by t= -62.5 IN (1- N over 80) according to this formula,

asked by Mary Ann on May 9, 2014
93. ## English

Hello. I will really appreciate some help. 1)Do you think it's possible and natural to use "unsuccessfully" in the following position: "They have been trying to solve the problem in the new project, but unsuccessfully"? 2)Do you think the article is a must

asked by Ilma on May 12, 2012
94. ## Math

Please help? At least, let me know how to solve it. Please. The Starting five (5) players of the Women’s Basketball team have agreed to make appearances for charity events tomorrow night. If you must send three of them to a Breast cancer event and the

asked by Richard on October 8, 2006
95. ## Physics

A golf ball is hit with an initial velocity of 15 meters per second at an angle of 35 degrees above the horizontal. What is the vertical component of the golf ball's initial velocity? a)8.6 m/s b)9.8 m/s c)12 m/s d)15 m/s I know you use 15cos 35 feta to

asked by Jenna on February 3, 2014
96. ## Differential Equation

for 0

asked by Anon on January 5, 2013
97. ## Science/Math/HElP

Science- A 25N object is 3 meters up. How much potential energy does it have? our teacher said that the formula for finding out potential energy is PE = Mass * Gravity * Height. The gravity on Earth is always 9.8, but my problem is that instead of mass the

asked by Lila on February 8, 2012
98. ## intro chem HELp please

1. Zinc is often used to calibrate calorimeters because it undergoes a very sharp phase transition from the solid to the liquid at 419.5oC. Calculate the enthalpy change when 5 g of zinc metal is heated from 100oC to the point where the entire sample is

asked by John on November 5, 2010
99. ## algebra

Ticket Sales Living in or near a metropolitan area has some advantages. Entertainment opportunities are almost endless in a major city. Events occur almost every night, from sporting events to the symphony. Tickets to these events are not available long

asked by dave on June 24, 2010
100. ## physics

You are a Middle Ages cannonball scientist attacking a castle a distance D away. Your job is to get a cannonball of mass m over the walls, which are a height H above the top of the cannonball launcher. At the instant when the cannonball leaves the launcher

asked by Henry on January 26, 2014