1. Chemistry (concentration)

    H2SO4(aq) + 2LiOH(aq) → Li2SO4(aq) + 2H2O(l) 3.2 moles of LiOH enter the reaction and are fully consumed. The molar mass of Li2SO4 is 110 g/mol. The final aqueous solution has a volume of 4.0 L. What is the final concentration of Li2SO4 in g/L? 44

    asked by Summer on April 11, 2018
  2. CHEM-KSP/KA PROBLEMS

    really don't quite understand how to set up a caluculation to figure out whether a precipitate will form and i'm struggling with the second half too! When 25.75 mL of 0.00826 M lead II nitrate is mixed with 75.10 mL of 0.0183 M sodium chloride solution,

    asked by Sigurd on April 8, 2008
  3. physics

    2 forces pull horizontally on a heavy box. force b is directed 20 west of north and pulls twice as hard as force a. the resultant of these two pulls is 400N directly northward. using vector components to show two possible solutions to this problem: a. what

    asked by courtney on August 21, 2015
  4. chem lab

    when an aqueous solution suspected of containing BA2+ or Pb2+ or both is mixed with sulfuric acid a precipitate forms. In another test, when the original solution is mixed with an aqueous solution of sodium sulfide no precipitate forms. What do these two

    asked by natash on March 25, 2008
  5. Chemistry

    In a student's experiment, when 40 mL of 6% (w/w) hydrogen peroxide solution was reacted with 10 mL 0.5 M FeCl3 solution, a ΔrH of -3,382 J was calculated. Calculate ΔH for this reaction in kJ mol-1. Give your answer to 2 decimal places, do not include

    asked by Anon on April 19, 2016
  6. Chemistry

    A buffer solution is prepared by adding 14.37g of NaC2H3O2 and 16.00g of acetic acid to enough water to make 500mL of solution. What is the initial concentration of C2H3O2 in the solution? Ka(HC2H3O2)=1.8e-5 HC2H3O2 = H3O+ + c2h3O2 the molar mass of

    asked by Hannah on April 14, 2012
  7. science(Chemistry)

    Calculate the concentration of the NaOH solution. If 30,0cm3 of a standard oxalic acid[(COOH)2] solution of concentration 0,5 mol.dm-3,is used to neutralize 25,0 cm3 of a sodium hydroxide (NaOH) solution. The balanced chemical equation for the reation is

    asked by Ntombikayise on July 14, 2011
  8. Computer Science

    I need to write a program to solve for the following: Suppose that the file USPRES.txt contains the names fo the frist 43 United States presidents and the file USSENATE.TXT contains the names of all former and present US Senators. Write a program with

    asked by Wally on March 4, 2011
  9. Chemistry

    Calculate the molar concentration for each of the following. a)The concentration of a brine solution containing 225 g for pure sodium chloride dissolved in 4.00 L of solution. b)The volume that must be added to 4.2 mol of magnesium chloride to make a 0.045

    asked by Lyn on November 22, 2015
  10. Estimating DecimalsProducts and Quotients

    Determine whether each product or quotient is resonable.If not resonable,find a resonable result. 1. 62.77(29.8)=187.0546 2.16.132/2.96=54.5 The numbers are correct except for the decimal places. The first one looks like 60*30 or 1800, so determine where

    asked by Bowier4 on October 9, 2006
  11. Math

    Evan is painting a stool that has a cylindrical seat and four rectangular prism legs. The seat has a diameter of 8 inches and a height of 2 inches. Each leg is 2 inches by 2 inches by ten inches. How much area will Evan have to paint? Use three point one

    asked by Matthew on January 20, 2012
  12. Precalculus

    a farmer has available 1032 feet of fencing and wishes to enclose a rectangular area. If x represents the width of the rectangle for what value of x is the area the largest A) 256.5 feet b) 258 feet c) 256 feet d) 257 feet please show work! i need help

    asked by Help now fast due tommorow!!!!!!!!!!!!!!!!!!!!!!!! on March 29, 2010
  13. Precalculus

    a farmer has available 1032 feet of fencing and wishes to enclose a rectangular area. If x represents the width of the rectangle for what value of x is the area the largest A) 256.5 feet b) 258 feet c) 256 feet d) 257 feet please show work! i need help

    asked by Help now fast due tommorow on March 29, 2010
  14. Precalculus help fast

    a farmer has available 1032 feet of fencing and wishes to enclose a rectangular area. If x represents the width of the rectangle for what value of x is the area the largest A) 256.5 feet b) 258 feet c) 256 feet d) 257 feet please show work! i need help

    asked by Arielt on March 29, 2010
  15. computer programming

    : Create a program like KBC game show where program ask user 3 different question one after another and the user should answer them. If the answer are correct then pop up the message as “you got the right answer” and must ask user does he/she wants to

    asked by ravi on January 21, 2012
  16. Algebra

    The owner of a hair salon charges $20 more per haircut than the assistant. Yesterday the assistant gave 12 haircuts. The owner gave 6 haircuts. The total earnings from haircuts were $750. Hw much does the owner charge for a haircut? Solve by writing and

    asked by Cierra on February 24, 2013
  17. Alg 1

    The owner of a hair salon charges $20 more per haircut than the assistant. Yesterday the assistant gave 12 haircuts. The owner gave 6 haircuts. The total earnings from the haircuts were $750. How much does the owner charge for a haircut? Solve by writing

    asked by Emma on January 30, 2012
  18. math

    Please help, 1) How do you solve 2017^2017 without a calculator? 2) What is the last digit of the solution to this problem: 2017^(2017^2017)? Thank you!

    asked by Onet on March 10, 2017
  19. math

    In a concert hall, 60% of the seats were taken. 520 seats were empty. What is the total number of seats in the concert hall? Show your work

    asked by mav on October 1, 2018
  20. math

    The denominator of a fraction is 4 more than the numerator. If both the denominator and the numerator are increased by 1, the resulting fraction equals 1/2. What is the original fraction? **Need to show all work** Thanks for the help.

    asked by Dylan on March 26, 2011
  21. Geometry

    How much more pizza is in a 12-in. diameter pizza than an 8-in. diameter pizza? Round your answer to the nearest hundredth. Be sure to show all work and label your answer!

    asked by Maria on April 7, 2017
  22. Algebra

    The height of the flagpole is three fourths the height of the school. The difference in their heights is 4.5 m. What's the height of the school? Choices for school's height: 18, 20, 24. Please show work

    asked by Anonymous on August 23, 2012
  23. algebra

    In 2020 a​ city's budget is projected to be ​$24 million. This is approximately 12/7 of the 2000 budget. What was the​ city's budget in​ 2000? please show all work

    asked by merna on September 13, 2016
  24. Algebra I

    The cost of 4 scarves and 6 hats is $52. The cost of two hats is $1 more than the cost of one scarf. What are the costs of one scarf and one hat? Please show me how to set this up and work it.

    asked by Jane on February 21, 2013
  25. Algebra

    The height of the flagpole is three fourths of the height of the school. The difference in their heights is 4.5 m. What's the height of the school? Choices for school's height: 18, 20, 24. Please show work

    asked by Anonymous on August 23, 2012
  26. Math

    Solve for x 2^x+1 - 2^x = 112 Put this in exponent form: (3square root of x) ( square root of 3 cubed) Put into equation form: Horizontal stretch of 2, up 3, left 6, reflection on x-axis. Please help me with these three so I can work on the rest using

    asked by Nancy on April 18, 2013
  27. Math- fraction equations

    How would I solve this equation? d-1 = -1 1 ____ ___ 4 2 (d-1) divided by 4 = -1 and 1/2 Thanks, Ok, I'll set up your problem this way: (d-1)/4 = -1 1/2 -1 1/2 is the same as -3/2. Therefore: (d-1)/4 = -3/2 Multiply each fraction by a common denominator,

    asked by Sarah on March 6, 2007
  28. gr 11 Math

    Solve for x 2^x+1 - 2^x = 112 Put this in exponent form: (3square root of x) ( square root of 3 cubed) Put into equation form: Horizontal stretch of 2, up 3, left 6, reflection on x-axis. Please help me with these three so I can work on the rest using

    asked by Nancy on April 18, 2013
  29. passing on species

    I have to write an essay. I need some suggests as to where to start or some ideas as to what to write about. The topic is: One main biological objective for any living organism is to continue its species by reproducing and passing along genetic info.

    asked by Liz on June 27, 2009
  30. Co-op

    I have to writeabout the work setting and work environment of a pharmacy technician... I am allowed to copy and paste from a website as long as you reference it so I did... but all in all this is what I wrote.: Work environment: Pharmacy technicians work

    asked by Katelyn on January 6, 2013
  31. UIC

    Given a diprotic acid, H2A, with two ionization constants of Ka1 = 3.57× 10–4 and Ka2 = 3.14× 10–12, calculate the pH and molar concentrations of H2A, HA–, and A2– for each of the solutions below. (a) a 0.182 M solution of H2A (b) a 0.182 M

    asked by Anonymous on October 18, 2015
  32. Chemistry

    the lead (II) nitrate in 25.49 ml of a 0.1338M solution reacts with all of the aluminum sulfate in 25.00 ml solution. What is the molar concentration of the aluminum sulfate in the original aluminum sulfate solution? For a question like this how do I find

    asked by CL on February 23, 2017
  33. english letter

    Hello everybody! Today a I have to write a complain letter to "my"boss.I should write about my difficulties,and about what's bothering me. In the letter I should propose a solution as well. The situation is: Me(Julie,47 years old)has worked as a secretary

    asked by Lulu on April 14, 2010
  34. math-please help,need quickly

    loga(x-5)-loga(x+9)=loga(x-7)-loga(x+9) all the a's are lower please show work

    asked by anonymous on January 9, 2013
  35. physics

    please show me a simple formula to solve this find the final equilibirum temperature when 10.0 g of milk at 10.0degC is added to 1.60 * 10^2 g of coffee with a temperature of 90.0degC. assume the specific heats of coffee and milk are the same as for water

    asked by Bella on February 22, 2009
  36. chemistry

    consider a crystallization of sulfanilamide in which 10 mL of hot 95% ethyl alcohol is added to 0.10 g of impure sulfanimide. after the solid has dissolved, the solution is cooled to room temp. and then placed into an ice-water bath. no crystals for, even

    asked by BOB on October 7, 2008
  37. Math

    I have a math question I am stuck on. It is on the applications of linear systems. This is the question: A club raised 5000$ for a trip, they invested part of the money into a savings account with 4% interest, they put the rest of the money into a

    asked by Vanessa on December 10, 2018
  38. chemistry

    A solution of iron(III) thiocyanate was produced by dissolving 7.98 milligrams solid iron(III) thiocyanate in enough water to produce a 100.00 mL solution. What is the concentration, in molarity, of the solution?

    asked by Anonymous on November 6, 2013
  39. Chemistry

    A saturated solution of Mg(OH)2 is prepared having a large excess of Mg(OH)2. Sn(NO3)2 is added to the solution. Ksp = 1.8 10-11 for Mg(OH)2 and Ksp = 5.1 10-26 for Sn(OH)2. (a) What [Sn2+] is required to start the precipitation of Sn(OH)2? (b) What [Sn2+]

    asked by Gregory on March 14, 2013
  40. Chemistry

    Consider the titration of 50 mL of 0.250 M HCl with 0.1250 M NaOH. Calculate the pH of the resulting solution after the following volumes of Na OH have been added. a) 0.00 mL b) 50.00 mL c) 99.90 mL d) 100.00 mL e) 100.1 mL The question is, I get, for

    asked by George on April 27, 2013
  41. Chemistry

    Powdered AgOH is slowly added to 2.0 L of a 0.020 M solution of NaOH until no more AgOH will dissolve. If Ksp = 1.4 x 10 -8 for AgOH: a. What is [Ag +] in the saturated solution? b. What mass of AgOH had to be added to the solution to produce this

    asked by joseph lungu on April 19, 2018
  42. chemistry

    ihave two solutions. in the first solution , 1.0 moles of sodium chloride is disslved to make 1.0 liters of solution . in the second one, 1.0 moles of sodium chlorine is added to 1.0 liters of water.is the molarity of each solution the same?

    asked by wendy on February 13, 2012
  43. biology a

    Read the scenario. A cell contains 90% water and 10% salt. The external solution contains 75% water and 25% salt. Which statement is correct? A>> The external solution is hypotonic, so the cell will shrink B>> The external solution is hupotonic, so the

    asked by Rylee on February 12, 2018
  44. Physics

    To supply the plumbing system of a New York office building, water needs to be pumped to a tank on the roof, where its height will provide a "head" of pressure for all the floors. The vertical height between the basement pump and the level of the water in

    asked by Steven on June 15, 2012
  45. Physics

    The method by which the Mars exploration rovers, Spirit and Opportunity, landed on the surface of Mars in January of 2004 was quite elaborate. The rovers began their descent through the thin Martian atmosphere on a parachute until they reached an altitude

    asked by Frances on September 7, 2007
  46. Foreign languages

    Can you please check these sentences, Writeacher? 1) We...... (sit) in the sun for ... when she (tell) us to get inside. 2)We had been sitting in the sun for about half an hour when she told us to get inside. 3) Peter confessed to eating all the cake.

    asked by John on July 2, 2012
  47. Chemistry

    A 2.80-g sample of haematite ore containing Fe3+ ions was dissolved in a concentrated acid and the solution was diluted to 250 mL. A 25.0 mL aliquot was reduced with Sn2+ to form a solution of Fe2+ ions. This solution of Fe2+ ions required26.4mL of a

    asked by Luke on August 23, 2016
  48. Physics

    When one gallon of gasoline is burned in a car engine, 1.20 108 J of internal energy is released. Suppose that 0.99 108 J of this energy flows directly into the surroundings (engine block and exhaust system) in the form of heat. If 5.0 105 J of work is

    asked by please help on January 13, 2013
  49. physics

    In another solar system, a 100,000 kg spaceship and a 200,000 kg spaceship are connected by a motionless 90 m long tunnel. The rockets start their engines at the same time, and each produces 50,000 N of thrust in opposing directions. What is the system's

    asked by Anonymous on December 11, 2012
  50. chemistry

    A stock solution was prepared by dissolving exactly 0.4000 g of pure ASA (180.16 g/mol) in 10.00 mL of NaOH and heating the solution to a gentle boil. After cooling to room temperature, the solution was poured into a 250-mL volumetric flask and diluted to

    asked by Tasha on January 28, 2010
  51. Chemistry

    A solution is made by mixing 12.0 g of NaOH and 75.0 ml of 0.200 M HNO3 a) write a balanced equation for the reaction that occurs between the solutes. b) Caclulate the concentration of each ion remaining in solution. c) Is the resultant solution acidic or

    asked by Sara on September 18, 2007
  52. CHEMISTRY

    A solution is made by mixing 12.0 g of NaOH and 75.0 ml of 0.200 M HNO3 a) write a balanced equation for the reaction that occurs between the solutes. b) Caclulate the concentration of each ion remaining in solution. c) Is the resultant solution acidic or

    asked by Sara on September 18, 2007
  53. chemistry

    In a volumetric analysis experiment, a solution of sodium oxalate (Na2C2O4) n acidic solution is titrated with a solution of potassium permanganate (KMnO4) according to the following balanced chemical equation: 2KMnO4(aq)+8H2SO4(aq)+5Na2C2O4(aq)->

    asked by Monteshia on November 17, 2014
  54. Chemistry

    1)A buffer solution that is 0.10 M sodium acetate and 0.20 M acetic acid is prepared. Calculate the initial pH of this solution. The Ka for CH3COOH is 1.8 x 10-5 M. As usual, report pH to 2 decimal places. *A buffered solution resists a change in pH.*

    asked by JUNDY on March 10, 2015
  55. SS

    What is the difference in the mission system used by the spanish and the empresario system? A. The Spanish sent out missionaries sponsored by the state and the empresario system had empresarios that settled on their own land. ** B. Both the Spanish and

    asked by Check my answer on October 17, 2017
  56. College Chemistry

    Phosphoric Acid is usually obtained at an 85% phosphoric acid solution, by mass. If this solution is 15 M, what is the density of the solution? Express your answer in g/ml

    asked by Tabatha on September 14, 2010
  57. algebra

    1. is (0,3) a solution to the equation y=x+3 (1 point) yes** no 2. is (1,4) a solution to the equation y=-2x (1 point) yes no** 3. (4,0),(3,-1),(6,3),(2,-4) Which are solution to y=x-4?Choose all correct answers. (2 points) (6,3) (4,0)** (3,-1) (2,-4)** Im

    asked by blah on August 28, 2014
  58. algebra

    An industrial chemist will mix two acid solutions. One is 37% solution and the other is a 27% solution. How many liters of each should be mixed to get 50 liters of a 36% acid solution?

    asked by domo on May 23, 2014
  59. Chem Please HELP

    A 15.0mL sample of an H2SO4 solution is titrated with 24.0 mL of a 0.245 Molarity NaOH solution. What is the molarity of the H2SO4 solution?

    asked by heather on April 21, 2016
  60. chemistry

    what is the molarity of the solution obtained by mixing 25.0 ml of a 3.00 M methyl alcohol solution with 225.0 ml of a 0.100 M methyl alcohol solution?

    asked by mitch on December 13, 2012
  61. Chemistry (concentration)

    A 200 mL NaCl solution with a concentration of 4.0 g/L is mixed with a 600 mL solution containing 8% NaCl (m/v). What is the final concentration of salt in the solution in g/L?

    asked by Summer on March 24, 2018
  62. Chemistr

    To 10ml of a 0.10 acetic acid solution a 0.10M NaOH solution is added what is ph of the solution when 9.5ml of NaOH have been added

    asked by Juma on January 8, 2018
  63. Math

    At the first tri-city meeting, there are 8 people from town A, 7 people from town B, and 5 people from town C. If a council consisting of 5 people is randomly selected, find the probability that 3 are from town A and 2 are from town B. How would I show my

    asked by Punkie on December 6, 2009
  64. Computer Science

    0 down vote favorite I have to print: Ain't no sunshine when she's gone It's not warm when she's away. Ain't no sunshine when she's gone And she's always gone too long Anytime she goes away. How would I used methods to print these no loops? Would it be

    asked by Jake on September 26, 2015
  65. chemistry

    how many grams of sodium carbonate are needed to prepare 0.250 L of an 0.100 M aqueous solution of sodium ions? well normally you go moles=grams/molar mass than M= moles/L but when looking for grams? what do you do........multiple .250 by .100 than divide

    asked by STACY on December 14, 2010
  66. MATH - Can someone please help!

    Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a) The sales representative informs you that there are two floor plans still available, and that there are a total of 70

    asked by KiKi on March 22, 2010
  67. MGT HELP ASAP

    1. Read the following scenario: Dan is an employee at a regional mid-size computer company that has recently been sold to a larger, national computer manufacturing corporation. Dan is in charge of computer production orders, and because of this recent

    asked by troyer0269 on November 23, 2008
  68. science

    A radio wave travels through space with a frequency of 2 x 104 Hz. If the speed of the radio wave is 3 x 108 m/s, what is the wavelength of this wave? 6 x 1012 m 1.5 x 104 m 1 x 104 m 6.7 x 10-4 m Can someone show me how to solve this?

    asked by dianni on January 23, 2019
  69. chemistry Molarity

    You have 353 mL of a 1.25 M potassium Chloride solution, but you need to make a 0.50 M potassium Chloride solution. How many milliliters of water must you add to the original 1.25 M solution to make the 0.50 M potassium Chloride solution

    asked by Kevin on December 11, 2010
  70. chemistry

    Which solution would show the GREATEST change in pH on the addition of 10.0 mL of 1.0 M NaOH to 1.0 L of each of the following solutions? a. 0.50 M CH3COOH + 0.50 M NaCH3COO. b. 0.10 M CH3COOH + 0.10 M NaCH3COO. c. 0.50 M CH3COOH. d. 0.10 M CH3COOH. e.

    asked by wite2khin on May 13, 2010
  71. Java

    1 public class testOperators 2 { 3 public static void main(String[] args) 4 { 5 int x; 6 int y = 12 7 double z = 13.0; 8 x = 14 9 System.out.println(“x + y + z = “ + (x + y +z)); 10 x += y; 11 y--; 12 z++; 13 z *= x; 14 System.out.println(“x + y + z

    asked by SCCC on January 31, 2009
  72. Health Care Fnancial Accounting

    the local school system asks to submit a proposal to do pre-employment physicalsfor 60 bus drivers. What financial or accounting informaton is needed to submit the proposal? what shall I charge the school system?

    asked by Jerry on August 19, 2010
  73. english

    Can someone please tell me how this paragraph would be rated? Literary technique paragraph using the second paragraph of the Jan 2011 regent. In passage 2, the author Marge Piercy uses similie to portray the hard work people he loves best do. Similes

    asked by Naviva on June 16, 2011
  74. CHEMISTRY

    at 1500 celcius the system 2NON2+O2 was allowed to come to equilibrium. the equilibrium concentrations were NO=0.00035M N2=0.040M O2=0.040M What is the value of Kc for the system at this temperature? The answer they give is 1.3 x10^4 Im getting 2.2 x10^-1

    asked by HELPP ME on October 26, 2011
  75. physics

    In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic friction is 0.28 ? part a) What minimum value of (MA) will keep the system from starting to move? part b) What value of(MA) will

    asked by ally on May 7, 2012
  76. pre ap chem

    determine the partial pressure of hydrogen if it's collected over water at 23 degrees celsius and the system has a total pressure of 724 mmHg then determine the mole fraction of water vapor in the system

    asked by g on March 6, 2013
  77. physics please help !

    In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic friction is 0.28 ? part a) What minimum value of (MA) will keep the system from starting to move? part b) What value of(MA) will

    asked by ally on May 8, 2012
  78. physics

    In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic friction is 0.28 ? part a) What minimum value of (MA) will keep the system from starting to move? part b) What value of(MA) will

    asked by ally on May 8, 2012
  79. physics please help !

    In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic friction is 0.28 ? part a) What minimum value of (MA) will keep the system from starting to move? part b) What value of(MA) will

    asked by ally on May 8, 2012
  80. Physics

    Consider the system of capacitors shown in the figure below (C1 = 5.00 µF, C2 = 7.00 µF). Find the equivalent capacitance of the system. Find the charge on each capacitor. Find the potential difference across each capacitor. Find the total energy stored

    asked by chuck on September 22, 2010
  81. Kaplan University

    Create a mathematical model for determining the total costs involved in driving from Atlanta to New York City. Be sure to think critically about all possible costs included in the trip and include them in your model. Assume that you have $2,000 available

    asked by Anonymous on June 16, 2010
  82. Geography

    5. Although politically united with England since 1907, Scotland has retained all of the following except its own a. system of laws b. religion c. parlimentary system d. system of education I think this can either be A or C 6. Most of the Nordic region has

    asked by mysterychicken on September 16, 2009
  83. Chemistry

    Need help with this lab: (sorry so long) Hypothesis: The amount of product will be regulated by the limiting reactant. Procedure: First, I took two test tubes from the Glassware shelf. I added 6 mL of the copper sulfate solution to one, and 6 mL of the

    asked by anonymous on November 14, 2009
  84. programming

    Suppose that you can select the pivot of the quick sort algorithm with three methods: you can select the first item, last item, or middle item as the pivot. Indicate the method(s) that gives the most efficient result to sort the following arrays. Note that

    asked by juju on May 6, 2014
  85. Algebra

    How do I answer this question/problem? I can't input the following scientific notations in a calculator and would like to know how to solve it. Thank you tutors. The four other recognized dwarf planets in the solar system and their estimated masses in

    asked by anon on December 2, 2015
  86. Algebra

    An object is dropped from a height of 1000 cm above the ground after t seconds is given by the formula below- d = 10tsquare + 1000 How far above the ground is the object, when it has fallen for 6 seconds? Please show your work.

    asked by Shipra on December 6, 2016
  87. calculus. please helppp!!

    1.) values of f(t) are given in the following table: t 0 2 4 6 8 10 f(t) 137 112 88 68 49 34 Estimate (f prime) f^' (2) and f^' (8) Please show work so I can understand. I'm really stuck. if the table comes out messed up, the values are: (0, 137) (2, 112)

    asked by JJ on February 22, 2012
  88. algebra

    Use the five steps for problem solving to answer the following question. Please show all of your work. The average of two quiz scores is 81. If one quiz score is six more than the other quiz score, what are the two quiz scores?

    asked by franklin on October 29, 2010
  89. math

    A pelican flies 2 and 1/4 feet above the surface of the ocean. A dolphin swims 10 and 1/2 feet below the surface. How far apart are the dolphin and the pelican? Show your work. I got 8 and 1/4. I think it's right but I just want to get another's persons

    asked by Wossum on September 3, 2016
  90. Math

    Ross uses nylon string as a border around a square picture. The string is 60 inches long. What is the area of the picture in square inches? Show your work.

    asked by Amy on February 15, 2017
  91. Physic II

    A person tries to heat up her bath water by adding 5.0 L of water at 80 degrees celcious to 60 L of water at 30 degrees celcious. What is the final temperature of the water? Show work please !

    asked by hulune2 on April 7, 2014
  92. English

    1. Read the sentence from paragraph 1 below. It looms menacingly over the road from the roof of a farmhouse, a flying reptile with a seven-foot wingspan. Which of the following correctly describes this sentence? A. Simple sentence B. Complex sentence C.

    asked by Cassie on March 29, 2013
  93. math

    Evan is painting a stool that has a cylindrical seat and four rectangular prism legs. The seat has a diameter of twelve inches and a height of 2 inches. Each leg is 3 inches by 3 inches by fourteen inches. How much area will Evan have to paint? Use three

    asked by drae on December 3, 2011
  94. World History

    I needed to match the item name to what best describes it. I only have these five left but I'm not sure if I got them right. Can someone check my answers? Thanks. Home Rule: self-government Geopolitical region: area that shares similar political and

    asked by World History on August 23, 2019
  95. Chemistry

    A metallurgist decomposes an unknown ore to the following metals. What is the chemical formula of the ore? (Show all the chemical equation and solution steps) ore = x metal products from ore decomposition: Al: 162.0 grams Sb: 730.8 grams Ag: 1,294 grams

    asked by jermain 32 on February 2, 2012
  96. Trigonometry

    A person on a ship sailing due south at the rate of 15 miles an hour observes a lighthouse due west at 3p.m. At 5p.m. the lighthouse is 52degrees west of north. How far from the lighthouse was the ship at a)3p.m.? b)5p.m.? c)4p.m.? Please Show The Solution

    asked by Amber on June 23, 2012
  97. Statistics

    A building contractor claims that they can renovate a 200 sq foot kitchen and dining room in 40 work hours plus minus 5 (the mean and standard deviation respectively). The work includes plumbing, electrical installation, cabinets, flooring, painting and

    asked by LINDA on March 13, 2007
  98. MATH

    Time and money are always significant. Look at this scenario. You can either do your own yard work or you can pay someone to do it for you. You find that it takes you about 50 minutes to clip, mow, and otherwise clean up your yard each time you do it. You

    asked by URGENT DUE TODAY on September 9, 2010
  99. Math

    Time and money are always significant. Look at this scenario. You can either do your own yard work or you can pay someone to do it for you. You find that it takes you about 50 minutes to clip, mow, and otherwise clean up your yard each time you do it. You

    asked by Tania on September 7, 2010
  100. astronomy/conversion

    There are 365.25 days in a year, 24 hours in a day, 60 minutes in an hour, and 60 seconds in a minute. Convert years into seconds. Show your work and keep 5 significant figures. Ok, so finding it is easy (multiply 24, 60, 60 and 365.25) but how does the

    asked by carl on January 17, 2013

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