1. Chemistry

    Colligative Properties The freezing point of distilled water was determined by recording a thermogram: -0.176 degrees Celsius. The freezing point of a 0.200 m (molality) solution containing an unknown, ionic compound was determined by recording a second

    asked by Sam on January 28, 2014
  2. Science

    A farmer wants to determine if a new fertilizer gives her a better crop yield than her old fertilizer. She spreads the old fertilizer in field A, which has a brand new irrigation system. She spreads the new fertilizer in field B, which has an irrigation

    asked by DM on August 17, 2018
  3. Chemistry

    Can someone check my answers? These are based off of an experiment which is determining the proportionality constant, R, in the ideal gas equation. 1. Suppose a student runs into some procedural and calculation difficulties. State the effect the following

    asked by Brandon on April 1, 2007
  4. Math

    It is known that if the deer population falls below a certain level, m, then the deer will become extinct. It is also known that is the deer population goes above the maximum carrying capacity, M, the population will decrease to M. (a) Discuss the

    asked by Jenny on April 20, 2012
  5. Physics

    This is a very confusing problem, I had never taken physics before and it is going to kill my GPA. can someone please help me solve this problem. I have a quiz coming up. Thanks for the help. The flywheel of an old steam engine is a solid homogeneous metal

    asked by Rhyan on October 31, 2014
  6. Chemistry II

    A solution of ethanol in water is prepared by dissolving 61.0 mL of ethanol (density = 0.79g/mL) in enough water to make 280.0 mL of solution. What is the molarity of the ethanol in this solution? definition of molarity = #mols/L. mass ethanol = m = volume

    asked by Jayd on April 16, 2007
  7. ALG2! WORD PROBLEM!very important!!

    You are a student who plans to attend the amusement park for two days. This will be fun! Now it's time to figure out the cost. You won a coupon for 50% off a 1-day pass but it cannot be combined with other offers. The amusement park also offers a $5

    asked by tyneisha on November 30, 2012
  8. math

    Lisa and Katie are playing a card game, and a total of 900 points has been scored. Lisa scored 150 more points than Katie. If you let l= the number of points that Lisa scored, and k= the number of points that Katie scored, then the problem can be

    asked by Claire on May 18, 2016
  9. SCIENCE

    I mix 300.0ml of the barium nitrate solution from 1c with 100ml of a 1.50M lithium phosphate solution. The reaction produces solid barium phosphate a. Write a balanced equation for the reaction. b. Which is my limiting reagent? c. How much barium phosphate

    asked by AKASH on April 26, 2016
  10. Financial Mgt

    The total annual hours for a standard work year at 40 hours per week will differ from the total annual hours for a standard work year at 37.5 hours per week. The standard work year at 40 hours per week will amount to: A. 2,080 B. 1,950 C. 480 D. 450 E.

    asked by Anonymous on September 26, 2017
  11. Chemistry

    One of the main components of hard water is CaCO3. When hard water evaporates, some of the CaCO3 is left behind as a white mineral deposit. If hard water solution is saturated with calcium carbonate, what volume of the solution has to evaporate to deposite

    asked by Trista Nigh on April 24, 2011
  12. math

    Lachlan can finish a work in 45 minutes. Claire works twice as fast as Lachlan. If Lachlan and Claire work together, it will take X minutes to finish the work. What is x minutes?

    asked by Popa on September 26, 2016
  13. Discreet Mathematics

    Part I: Suppose you are developing a statistical database in which information about professional football teams and records are stored. Consider the following 2 sets of data that list football teams and quarterbacks: D = {Jets, Giants, Cowboys, 49’ers,

    asked by Chuck on October 20, 2012
  14. math

    Could someone please check my math questions? any help will be greatly appreciated! Questions~ 16. A car’s speed before a sudden stop can be estimated by the formula S = √(30gk) , where S = speed of the car in mph, g = drag factor, and k = length of

    asked by Abby on October 9, 2015
  15. math

    Could someone please check my math questions? any help will be greatly appreciated! Questions~ 16. A car’s speed before a sudden stop can be estimated by the formula S = √(30gk) , where S = speed of the car in mph, g = drag factor, and k = length of

    asked by Abby on October 12, 2015
  16. physics

    What is the average useful power output of a person who does 5.50×106 J of useful work in 6.50 h? 235 W correct answer Working at this rate, how long will it take this person to lift 1850 kg of bricks 1.20 m to a platform? (Work done to lift his body can

    asked by stephanie on December 6, 2017
  17. chemistry

    A 51 kg person drinks 270. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 15% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake? [Hint: The work done in

    asked by Anonymous on September 19, 2011
  18. chemistry

    A 51 kg person drinks 330. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 18% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake? [Hint: The work done in

    asked by Ellie on September 18, 2011
  19. math

    Thomas and Samantha work on weekends and holidays doing odd jobs around the neighborhood. they are each paid by the day, not the hour. they each earn the sme whole number of dollars per day. last month thomas earned $ 184 and samantha earned $ 207. how

    asked by maddie on October 12, 2009
  20. chemistry

    A 45-kg person drinks 390. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 17% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake? [Hint: The work done in

    asked by Dani on October 21, 2016
  21. chemistry

    A 43 kg person drinks 490 g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 16% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake? [Hint: The work done in

    asked by jamie on September 26, 2008
  22. science

    A 49 kg person drinks 270. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 16% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake? [Hint: The work done in

    asked by Alyssa on September 14, 2012
  23. micro

    We assume that when a firm hires additional workers, the marginal physical product of labor will: 1. decrease because each worker now has less capital and other resources to work with. 2. decrease because the new workers are likely to be less able than the

    asked by lisa on April 21, 2015
  24. Geometry

    How do I solve for these?On a line,If M is the midpoint of segment AB, AM=4x and AB=7x+9. What is the value of MB? I cannot figure this one out either:If B is between A and C, AB=5y+4, BC=7y-3, and AC=20y-7. Find the value of y, AB, BC, and AC. Can someone

    asked by Jim on July 27, 2007
  25. chemistry

    Can someone please help me with these? How many electrons would Nitrogen, Aluminum, and Bromine gain or lose? Look at the periodic table and find N, Al, and Br. You should find N in group VA (or 15 depending on the system being used), Al in IIIA (or 13),

    asked by Fidelia on January 23, 2007
  26. physics

    an object of height 5cm is placed 20cm in front of a concave mirror of radius of curvature 20cm by graphical method, find image distance from the mirror

    asked by mark on September 21, 2016
  27. Maths

    f(x)=[sqrt((x-68)^2 + x^3-116x^2-417x+267460)] - 10 To find the minimum value of we need to check the value at the following three points (in increasing order). (You will need to use a numerical method, like Newton-Raphson to find one of these points.)

    asked by Salman on November 22, 2009
  28. Chemistry

    In a mixture of liquids,liquid A is steam volatile,and decomposes at its boiling point.explain the method of separating liquid A from the mixture,with physical principles involved.

    asked by Ramya on March 20, 2011
  29. math

    Two cards are drawn without relplacement from a shuffled deck of 52 cards. Determine the probability of each event. a)The first card is a heart and the second card is Q of hearts. P(BlA)=P(A&B)/P(A) (13/52)(1/51)/(1/4) = 1/51 How is this method incorrect?

    asked by sh on May 5, 2009
  30. math

    On May 23, Samantha Best borrowed $4,000 from the Tri City Credit Union at 13% for 160 days. The credit union uses the exact interest method.What was the maturity value of the loan?

    asked by Anonymous on December 4, 2016
  31. Math

    f(x)=[sqrt((x-68)^2 + x^3-116x^2-417x+267460)] - 10 To find the minimum value of we need to check the value at the following three points (in increasing order). (You will need to use a numerical method, like Newton-Raphson to find one of these points.)

    asked by Salman on November 22, 2009
  32. calculus

    Use the disk or the shell method to find the volume of the solid generated by revolving the region bounded by the graphs of the equations about each given line. y = x3 y = 0 x = 3 the x-axis,the y-axis,and the line x = 4

    asked by Meltnd on January 25, 2012
  33. Calculus

    f(x)=[sqrt((x-68)^2 + x^3-116x^2-417x+267460)] - 10 To find the minimum value of we need to check the value at the following three points (in increasing order). (You will need to use a numerical method, like Newton-Raphson to find one of these points.)

    asked by Salman on November 22, 2009
  34. biology

    I want to imaging collagen and elastin in porcine heart tissue without staining using a confocal microscopy. So far most of the articles that I found are using staining to differentiate the two, is anyone familiar with the microscopy method

    asked by tech on April 14, 2011
  35. Physics

    A steel ball of mass 8.0 kg and traveling at 3.0 m/s [E] has a head-on elastic collision with a brass ball which is at rest. After the collision, the velocity of the brass ball is 4.0 m/s [E]. Find: a)the velocity of the steel ball after the collision b)

    asked by paula on January 13, 2016
  36. Chemistry

    An 850 gram chunk of ice at 0 degrees Celsius is dropped into a container holding 1.7 kg of water at an initial temperature of 35 degrees Celsius. Due to the presence of the ice, the temperature of the water eventually drops to 0 degrees Celsius. Show a

    asked by Selena on January 29, 2012
  37. chemistry

    A 15.0 ml sample of an unknown HClO4 solution requires 50.3 ml if 0.101 M NaOH for complete neutralization. What was the concentration of the unknown HClO4 solution? The neutralization reaction is: HClO4(aq)+ NaOh(aq)yields H2O(l)+ NaClO4 (aq) If anyone

    asked by ben16 on December 3, 2011
  38. science

    A student adds 3 spoons of salt to 100 ml of water. The solution is clear with nothing on the bottom of the cup. One spoon of the salt has a mass of 5g. What is the mass of the solution? After the water evaporates what is the mass of the solid remaining in

    asked by linda on September 24, 2015
  39. chemistry

    A 15.0 ml sample of an unknown HClO4 solution requires 50.3 ml if 0.101 M NaOH for complete neutralization. What was the concentration of the unknown HClO4 solution? The neutralization reaction is: HClO4(aq)+ NaOh(aq)yields H2O(l)+ NaClO4 (aq) If anyone

    asked by ben16 on December 3, 2011
  40. chemistry

    A 15.0 ml sample of an unknown HClO4 solution requires 50.3 ml if 0.101 M NaOH for complete neutralization. What was the concentration of the unknown HClO4 solution? The neutralization reaction is: HClO4(aq)+ NaOh(aq)yields H2O(l)+ NaClO4 (aq) If anyone

    asked by ben on December 3, 2011
  41. Chemistry

    Kidney stones are composed of crystals of calcium oxalate, CaC2O4. The solubility of CaC2O4 is 6.7 x 10-5 g per 100 ml of solution. What is the pH of a saturated solution of calcium oxalate? (Molar masses of Ca, C and O are 40.0 g/mol, 12 g/mol, 16 g/mol

    asked by Milana on July 13, 2012
  42. Math

    2004 (2nd) course2-3.2 Let P and Q be points on the line y=x+4 where the x-coordinates of P and Q are p and p+1,respectively.Let O denote the origin. (1)For 2 vectors OP(vector)and OQ(vector),the inner product OP(vector)*OQ(vector) takes its minimum when p

    asked by Bayarbold on June 10, 2011
  43. communication

    Please HELP!! Question 1 of 20 5.0 Points Which of the following would be the LEAST appropriate in the closing paragraph of a negative message? A. "Let us know if model #A01 would be a suitable substitution." B. "Our layaway plan will enable you to

    asked by Kristen on February 4, 2013
  44. physics

    a person pushes a 10kg mass at a constant speed across a u=0.150, 8.50m long floor at a constant speed how much work does the person do? (125J) how much work does friction do? ( -125J)

    asked by sammeh on November 16, 2009
  45. Physics 6A

    A 330- piano slides 3.8 down a 23 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. a.Determine the work done by the force of gravity. b.Determine the work done by the man on the piano.

    asked by Daisy on May 11, 2012
  46. calculus 2

    Six and one-half foot-pounds of work is required to compress a spring 3 inches from its natural length. Find the work required to compress the spring an additional one-half inch.

    asked by brittney on May 31, 2011
  47. physics

    A 6.0-kg box is raised a distance of 3.0m from rest by a vertical applied force of 80 N. Find (a) the work done on the box by the applied force, (b) the work done on the box by gravity, and (c) the final kinetic energy of the box.

    asked by carrie on February 24, 2010
  48. algebra

    trying to solve a point a slope word problem. you are scheduled to start your job at an oil change shop 2 hours after shop opens. two hours after you start, a total of 11 cars have had their oil changed. three hours later, a total of 14 cars have had their

    asked by aaron on September 29, 2013
  49. Science, 8th.

    This flask originally held some copper wire and a clear solution of nitric acid. The two substances reacted and produced a brown gas and a blue solution. This reaction cannot be reversed. Evidence of a chemical reaction is shown by... A) ice forming. B)

    asked by .jimin on February 28, 2019
  50. Accounting

    The Bayside Company uses the LIFO cost flow method to value inventory. In the current year, profit at Bayside is running unusually high. The corporate tax rate is also high this year but it is scheduled to decline significantly next year. In light of this

    asked by Mia on May 6, 2014
  51. Physics

    It takes 6.7 J of work to stretch a spring 4.4 cm from its unstressed (relaxed) length. How much work (in J) is needed to compress the spring an additional 3.8 cm? I found the spring potential energy to be 6.7 J, and the spring constant to be 6921.5. I

    asked by Misaki on October 23, 2014
  52. MATH

    Suppose that you work at the Peacock Blue store for 40 hours over five days at a rate of $9.25/hour. You then quit your job. Deductions are FICA (7.65%), federal withholding (12%), and state withholding (8%). Your expenses are transportation at $5.25/day,

    asked by Anonymous on April 16, 2015
  53. English

    1.Which of the following is used when political candidate highlights his or her experience in finance as the basis of a plan for economic recovery? A.Ethos B.Pathos C.Logo***** 2. Identify the sentence that most strongly relies on emotional language. A. It

    asked by Cassie on May 19, 2015
  54. math

    Please need help on this Create an equation of a nonlinear function and provide two inputs for your classmates to evaluate. f(x)=10²+5 find f(2) and f(-2)

    asked by Anonymous on October 6, 2010
  55. Math/Algebra

    At Gwen's garage sale, all books were one price, and all magazines were another price. Harriet bought four books and three magazines for 1.45, and June bought two books and five magazines for 1.25. What was the price of a book and what was the price of a

    asked by Bianca on July 24, 2007
  56. Business Communication

    Will someone look over my answers and think this is okay? The assignment is and I'm suppose to find the strengths and weaknesses. I am a new publisher with some really great books to sell. I saw your announcement in Publishers Weekly about the bookseller's

    asked by Cupcake on November 22, 2007
  57. ACT SCIENCE

    QUESTION: Based on the passage, the higher average speeds were probably the result of F. Greater friction G. Temperature variations H. Too much sunlight J. Statistical error CORRECT ANSWER: [F] EXPLANATION: Since the passage indicates that all three of the

    asked by Java on August 28, 2013
  58. algebra

    Tom decided to join Platinum Gym because of its new equipment. At the grand opening, the manager announced that 124 people had signed up for gym membership. As part of the grand opening event, the manager waived the registration fee for 50 random people.

    asked by David on September 7, 2018
  59. Chemistry

    Thallium (I) iodate is only slightly soluble in water. Its Ksp at 25°C is 3.07 x 10-6. Estimate the solubility of thallium iodate in units of grams per 100.0 ml of water. TlIO3(s) Tl^+ + IO3^- Let x = molar solubility of TlIO3. The x is molar solubility

    asked by Jason on May 2, 2007
  60. Chemistry

    Calculate the concentration of bromocresol green (BG) indicator It says that Molar absorptivity = Absorbance at a wavelength/ concentration of BG indicator I am having trouble calculating the concentration of BG. Other info: Stock solution of BG = 80.0

    asked by Catherine on April 25, 2013
  61. Chemistry

    A buffer contains 5.00 M acetic acid and 5.00 M acetate anion. Gaseous HCl (0.010 mole) is added to 1.00 L of this buffer solution (the total volume does not change). For this buffer solution, the initial pH is_______and the final pH after the addition of

    asked by Ivana on May 2, 2010
  62. Chemistry

    Lactic acid is a major component of Ringer’s solution, which is used as an intravenous fluid to maintain fluid balance in trauma patients. The pH of a 0.100 M lactic acid solution is around 2.44. Based on this information, determine the value of the acid

    asked by Anonymous on October 26, 2017
  63. Chemistry

    I have know clue how to answer this, but I tried something.(predicting products of electrolysis in aqueous solution)/ Predict the products of the electrolysis of a solution of aqueous MnSO4. I first wrote this: Mn^2+ SO4^2- Then for Mn^2+, it can be

    asked by Sara on June 16, 2015
  64. Chemistry

    The boiling point of an aqueous solution is 102.16 C. What is the freezing point? Dr. Bob, If you happen to answer this question, I was the one that a question earlier about how to know what Kf constant to use [water vs benzene?] and i didn't notice that

    asked by Tracy on February 17, 2012
  65. Chemistry

    Calculate the molarity of a solution made by adding 33.4 mL of concentrated nitric acid (70.4 % by mass, density 1.42 g/mL) to some water in a volumetric flask, then adding water to the mark to make exactly 2000 mL of solution. (It is important to add

    asked by JO on June 23, 2015
  66. chemistry

    calculate the mass of NaOH neded to prepare 500mL of a 0.10 M solution. I'm pretty sure the answer is 2g, but how do I get to that? Another question: calculate the molar amount of KHP used to neutralize the NaOH solution. .51 g of KHP was added to 50 mL of

    asked by Rebecca on October 14, 2007
  67. math

    Sarah and Joe are seeking to join a gym. Sarah saw on television that Great Gym is offering membership at $19.50 per month, plus a one-time registration fee of $59. Joe plans to join Wacky Workout World because Wacky Workout World only charges $9.50 per

    asked by abdullatif on September 15, 2016
  68. algebra

    You make 20 silk flower arrangements and plan to sell them at a craft show. Each flower arrangement costs $12 in materials, and your booth at the craft show costs $30. If you sell the arrangements for $24 each, how many must you sell to make at least $100

    asked by David on September 11, 2011
  69. Chemistry

    silver ions in a solution of silver salts can be recovered by immersing copper metal in the solution. crystals of pure silver are deposited on the silver metal. design an experiment to determine the number of moles of silver atoms that form describe the

    asked by stacy on August 11, 2010
  70. Chemistry

    silver ions in a solution of silver salts can be recovered by immersing copper metal in the solution. crystals of pure silver are deposited on the silver metal. design an experiment to determine the number of moles of silver atoms that form describe the

    asked by annonomus on August 11, 2010
  71. Chemistry

    silver ions in a solution of silver salts can be recovered by immersing copper metal in the solution. crystals of pure silver are deposited on the silver metal. design an experiment to determine the number of moles of silver atoms that form describe the

    asked by stacy on August 11, 2010
  72. chemistry

    A 250.0 mL sample of an aqueous solution at 25 degrees Celsius contains 35.8 mg of an unknown nonelectrolyte compound. If the solution has an osmotic pressure of 11.25 mmHg, what is the molar mass of the unknown compound? a.) 237 g/mol b.) 484 g/mol c.)

    asked by Bru on October 2, 2012
  73. statistics

    According to the Census Bureau's 2002 American Community Survey, the average travel time to work of workers 16 years and over living in Boston, MA, who did not work at home, was 28.2 minutes with a standard deviation of 0.79 minutes. A sample of 35 commute

    asked by ali awan on May 7, 2013
  74. English

    Could you please check my sentences? Thank you. 1) What organization does the interviewee work for? 2) Why do endangered species serve as umbrella species? What poses the most serious hazard for the North Atlantic whales? 3) Which is the most successful

    asked by Henry2 on November 10, 2011
  75. statistics

    According to the Census Bureau's 2002 American Community Survey, the average travel time to work of workers 16 years and over living in Boston, MA, who did not work at home, was 28.2 minutes with a standard deviation of 0.79 minutes. A sample of 35 commute

    asked by ali awan on May 8, 2013
  76. math-Probablity

    Hi, just a few stupid questions about probability. 1. How many different license plates can there be if there is a total of 7 letters (no numbers) (and I'm assuming this has a something to do with permutation. 2. How many different batting line ups can be

    asked by Connor on April 14, 2011
  77. case management

    what are some similarities and differnces of case management in the community setting and in the managed care environment. As i see it, Case management has become a critical element in a community focused mental health system. Case management in the

    asked by liz on January 8, 2012
  78. Chem help

    Consider the following system, which is at equilibrium, CO(g) + 3 H2(g) CH4(g) + H2O(g). The result of removing some CH4(g) and H2O(g) from the system will be A. more CH4 is consumed to restore the equilibrium B. Kc decreases C. more H2O(g) is consumed to

    asked by Anonymous on December 10, 2017
  79. Bioanalytical Chemistry

    Two proteins are separated by capillary electrophoresis. The two proteins have the following physical characteristics: Protein A: net charge = +6; MW = 64,500; partial specific volume = 0.700 cm3 / g Protein B: net charge = +3; MW = 35,000; partial

    asked by Michael on October 27, 2009
  80. english

    can u edit this and add a little more plz like 2-3 lines plz in easy words, it is from the book we are all welcome here by elizabeth berg: Historically the work is significant because it gives us an insight of the horrors of the civil war, which asserted

    asked by sana on January 11, 2010
  81. chem

    A voltaic cell consists of a strip of cadmium metal in a solution of Cd(NO3)2 in one beaker, and in the other beaker a platinum electrode is immersed in a NaCl solution, with Cl2 gas bubbled around the electrode. A salt bridge connects the two beakers.

    asked by sarah on April 13, 2013
  82. Chemistry

    I need some help finding the net ionic equation for these two problems: 1. Bromine is added to a dilute solution of sodium hydroxide. 2. Sulfuric acid is added to a solution of lithium hydrogen carbonate. This is what I have for reactants: Br2 + NaOH and

    asked by Anonymous on January 6, 2010
  83. Chemistry

    What is the vapor pressure at 23 degree C of a solution of 1.20g of naphthalene, C10H8 in 25.6 g of benzene, C6H6? The vapor pressure of naphthalene can be neglected. Calculate the vapor-pressure lowering the solution

    asked by Lauren on February 7, 2008
  84. geography

    teh type of erosion mainly found on the upper course of rivers are: a.hydralic action,lateral and abrasion b.hydralic action and solution c.abrasion and solution d.hydralic action and attrition

    asked by Kadeena on February 22, 2010
  85. chemistry

    The weight of a china dish with a saturated solution of sodium nitrate at 40°C is 80 g. After evaporating the whole solution the dish's weight along with the crystals is 40 g and solubility of NaNO3 at 40°C is 20 g. What is the weight of empty china dish

    asked by Anonymous on October 5, 2016
  86. science grade 11

    A waiter carries a 253g drink a distance of 12m on a horizontal tray at constant speed of 1.1 m/s. A) what work is done by the normal force of the tray on the drink? B) what work is done by the friction force of the tray on the drink?

    asked by Sohaib on January 21, 2017
  87. Algabra

    Landscape designers often use coordinate geometry and algebra as they help their clients. In many regions, landscape design is a growing field. With the increasing popularity of do-it-yourself television shows, however, many homeowners are becoming amateur

    asked by Isaac on November 25, 2009
  88. chemistry

    Both Fe2+ and Cd2+ are precipitated by sulfide. However, they can be quantitatively separated through pH adjustment. You are given a solution containing 0.086 M Fe2+ and 0.062 M Cd2+. Calculate the [H+] range for a saturated H2S solution (ie, [H2S]=0.10 M)

    asked by Tanner on March 25, 2012
  89. Chemistry

    Help with lab report Need Help finishing my lab report.KNOWN VALUES ARE V OF HCL=50ML,M=2.188.V OF NAOH=55.3ML,M=2.088.INTIAL TEMP FOR HCL=22.5C,NAOH IS 23C.this is for part A: Mass of final NACL solution assuming that the density of a 1 M Nacl solution is

    asked by randy on October 26, 2012
  90. 11th grade maths

    A.give an example of a function whose domain is {3,4,7,9}? and whose range is {-1,0,3} B.Find two different functions whose domain is {3,8}and whose range is {-4,1} C Explain why there does not exist a function whose domain is {-1,0,3} and whose range is

    asked by fatima on September 17, 2012
  91. Math

    Shopping: Tax Situation: You are purchasing four items and want to calculate the tax. The items cost $2.50, $8.75, $3.00, and $10.25. The tax rate is 6%. How much is the tax? Calculation With Distribution (Show all steps.) Calculation Without Distribution

    asked by y on November 20, 2018
  92. Alg 2

    Expressions, Equations and Inequalities I am struggling can someone please explain how to get the correct answer choice thank you! 1. Which of the following is equal to (3x/5-7)+7 5x/3 3x/5 3x-35/5 (3x-7)+35 5. name the property of real numbers illustrated

    asked by Missy on September 3, 2015
  93. help!

    What are two situations in which mechanism can be detrimental You have to define what type of mechanisms you mean: biochemical, physical, etc. It is dangerous to stand in front of an automobile while it is running... sorry if I did not make myself clear!

    asked by please on August 10, 2006
  94. Science Plzz Help

    1. Which of the following effects would you expect if red blood cells were shaped like neurons? A. They would not be able to move as easily through capillaries.***** B. They would more easily carry out gas exchange in the alveoli. C. They would not need to

    asked by Mstv on June 2, 2014
  95. Chemistry

    Predict the standard cell potential and calculate the standard reaction Gibbs free energy for galvanic cells having the following cell reactions: a.)3Zn + 2Bi3+ = 3Zn2+ + 2Bi b.)2H2 + O2 = 2H20 in acidic solution c.)2H2 + O2 = 2H20 in basic solution

    asked by Anonymous on February 27, 2014
  96. Chemistry 1111

    To determine the molarity of NaOH solution, student took 3.5 g of KHP (KHP – Potassium hydrogen phthalate; Molar mass = 204.22 g/mol) and dissolved in 50 mL of water and titrated with the given unknown molarity NaOH solution loaded in burette. His

    asked by Lowell on July 5, 2016
  97. chemistry

    The quantity of antimony in an ore can be determined by an oxidation-reduction titration with an oxidizing agent. The ore is dissolved in hot, concentrated acid and passed over a reducing agent so that all the antimony is in the form Sb3 (aq). The Sb3 (aq)

    asked by Katie on February 24, 2012
  98. Chemistry

    When a 5.50g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee cup calorimeter, the temperature of rises from 21.6 degrees C to 37.8 degrees C. Calculate Change of heat for the reaction in kJ (also in kJ/mol NaOH) for the solution

    asked by Jennifer on October 10, 2011
  99. chemistry

    How many grams of dipotassium succinate trihydrate (K2C4H4O4·3H2O, MW = 248.32 g/mol) must be added to 790.0 mL of a 0.0522 M succinic acid solution to produce a pH of 5.872? Succinic acid has pKa values of 4.207 (pKa1) and 5.636 (pKa2). is the pH of the

    asked by Melodie on July 6, 2016
  100. Damon check step by step

    25g of a sample of ferrous sulphate was dissolved in water containing dilute h2s04 and the volume made up to one litre. 25ml of this solution required 20ml of N/10 kmn04 solution for complete oxidation. Calculate the percentage of f2s047h20 in the sample

    asked by Fai on January 2, 2014

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