1. Statistics

    Find the probability of correctly answering the first 2 questions on a multiple choice test if random guesses re made and each question has 6 possible answers. My answer is 1/36 Assume that the data has a normal distribution and the number of observations

    asked by Sue on December 4, 2006
  2. geometry easy

    The perimeter of equilateral triangle TRY is 9y+45 and TY = 2y+25 . find the perimeter of triagle TRY. The perimeter of a parallelogram ABCD is 66 cm, and DC is twice as long as BC . how long is AB ? 2 QUESTIONS .. ANSWERS PLEASE TELL ME WHAT TO DO

    asked by nicole on October 22, 2013
  3. additional info

    is there any other site like this that answers questions for free? Any that don't involve downloading software. like Jiskha. I mean this is a really good site but i want to know if this is the only free site.

    asked by Yammie on June 23, 2010
  4. geometry easy

    The perimeter of equilateral triangle TRY is 9y+45 and TY = 2y+25 . find the perimeter of triagle TRY. The perimeter of a parallelogram ABCD is 66 cm, and DC is twice as long as BC . how long is AB ? 2 QUESTIONS .. ANSWERS PLEASE TELL ME WHAT TO DO

    asked by nicole on October 22, 2013
  5. English

    1.Establishing credibility involves what? assuring the audience that what you are arguing for is for the general good, a widespread issue or problem, one that they may share with you citing authorities on the subject who support your point wholeheartedly

    asked by christopher on April 20, 2010
  6. socials

    canadian charter of rights and freedoms(misc.) right that say canadian ppl are allowed to move to any location of Canada? ( mobility?) # of official languages in canadian constitution agreeing with charter (that be french and english ?) this can dominate

    asked by Mohammad on January 4, 2012
  7. Algebra

    True or False. 1. If the radicand is a multiple of a perfect square number, then the radical is not in its simplest form. 2. The value of the cube root of -1/8 is not a real number because the radical is negative. 3. The fifth root of a negative number is

    asked by Paula on July 20, 2013
  8. phi103

    Every major religion advocates kindness and helping the poor. It’s clear that these are core human values. True or False: The statement, “Every major religion advocates kindness and helping the poor,” is a premise.

    asked by meghan on January 13, 2015
  9. math

    i'm studying for a test and i've just got a few questions.. 1-If x^2+8x+m has one double root then m=? and the vertex is? 2-I got -3-i(s.r)5 / 5 for this problem-> -15-(s.r)-125.. is that correct? 3-Is the answer for (5-3i)^2 -30i+ 16 ? 4-is the answer to

    asked by cici on February 26, 2009
  10. COM 220

    Answer the following questions in a minimum of 500 words: Identify examples of bias, fallacies, and specific rhetorical devices in the speech. How did the speaker address arguments and counterarguments? Were the speaker’s arguments effective? Explain

    asked by Anonymous on September 8, 2008
  11. Math pleaaaase help

    A national math contest consisted of 11 multiple choice questions, each having 11 possible answers. Suppose that 111 students actually wrote the exam, and no two students has more than one answer in common. The highest possible average mark for the

    asked by Mathslover on May 14, 2013
  12. chem

    What volume of a 0.2 N NaoH solution do you expect to use in order to titrate 25ml (sample out of 250ml) of a 0.200 N oxalic acid solution? heeeelp! Equation is H2C2O4 + 2NaOH==> 2H2O + Na2C2O4 I assume that is 25.00 mL H2C2O4. milliequivalents(meq) NaOH =

    asked by Melba on September 26, 2006
  13. Statistics

    There are 3 short questions on math test. for each question, 1 mark will be awarded for a correct answer and no mark for wrong answer. if the probability that mary correctly answers a question in a test is 2/3, determine the probability that mary correctly

    asked by Mikel on May 5, 2017
  14. Algebra 2

    Find an equation of variation in which y varies inversely as x and the following is true: y=31, when x=4 Originally, I mixed up the equations of inverse and direct variation, and got 31=m(4) ----- b Obviously, I got it wrong, but I've gone ahead and redid

    asked by Jennifer on February 15, 2017
  15. geometry

    I tired but answers don't make since. Problem is segment CD is perpendicular bisector of segment AB. Need to find lengths of AC (9y-6), AD (3x), and AE ((5x +6). Others: BE=(5x+ y), BD (x + 10) and CB (7y). Figure like a kite. HELPPPPPPPPPP.

    asked by miranda on April 16, 2015
  16. chemistry 1

    if 20.2g of zn react with and equal amount of magnesium chloride to form magnesium and zinc chloride[zn+mgcl2> mg+zncl2] a.what is the limiting reactant? b. how much magnesium will be produced? Here is the way to solve most of these stoichiometry problems.

    asked by sam on May 11, 2007
  17. chemistry

    Equal masses of gaseous N2 and Ar are placed in separate flasks of equal volume at the same temperature. Tell whether each of the following statements is true or false. Briefly explain your answer in each case. (a) There are more molecules of N2 present

    asked by Gabriela on March 30, 2007
  18. psychology

    I need feedback on my choices. Did I choose the right answers to each of the 10 questions below? If not what is the correct answer for the questions that I got wrong wrong? 1. Dr. Schmidt studies the factors that activate and direct behavior toward an

    asked by Sharon on June 24, 2011
  19. Chemistry (Check)

    Classify each of these statements as always true, sometimes true or never true. __NT___11. The SI base unit of mass is the milliliter. __AT___12. A decigram is 100 times smaller than a gram. ___ST__13. The SI unit of volume is derived from the unit of

    asked by Bryan on January 19, 2007
  20. Trigonometry

    True or False The left side of cos^4 θ + (cos^2 θ)(sin^2 θ) + sin^2 θ = 1 can be factored to cos^2 θ(cos^2 θ + sin^2 θ) + sin^2 θ.

    asked by Quinn on December 20, 2018
  21. physics

    a person standing on a moving escalator is moving relative to another person standing on the escalator true or false?

    asked by Anonymous on October 14, 2012
  22. math/algebra

    Subtract: express your answer in simplest form. 2/5 - y/y-2 answers a)-3y-2/y-2 b) -3y -2/5(4-2) c) -3y-4/5(y-2) d) -3y-4/y-2 The way you have written the problem, is 2/5 minus y^3. I don't think that is what you meant. Please use grouping symbols on

    asked by Diana on July 15, 2007
  23. Languege arts

    1. Which is the BEST summary of "LAFFF"? (1 point) Angela used a time machine to win a writing contest. Peter and Angela invented a time machine. Peter used a time machine to travel to the future. 2. The author describes Peter's Halloween costume in order

    asked by Erin on February 7, 2013
  24. Algebra

    Okay i have a few function questions im gonna post. Im completely confused with these so any help would be great. Minimum or maximum value of: f(x)=2x^2+4x+1 and f(x)=x^2-3x+2 then if f(x)=x^2+9 and g(x)=x-4, find (g*f)(-3) next is if f(x)=x^3+x^2-x-1 and

    asked by Colin on December 13, 2007
  25. AP World Civilizations

    I have to take cornell notes on each chapter of my book. Right now I am on chapter 8. The subject is African Civilizations and the Spread of Islam. I am having troubles coming up with questions to ask. Does anyone have any suggestions of types of questions

    asked by Kiley on November 5, 2008
  26. ??????

    are new people her during the summer?for ppl who need help with summer school? Most of us teachers answer questions on the Jiskha board all year round. :-) We'll be glad to help all students whenever they post questions. P.S. -- We're all volunteers and

    asked by Anonymous on July 5, 2006
  27. science

    The true speed of a moving car on the Earth, if you want to be very precise, would be the speed of the car with respect to the ground Is this true? yeah it is true yeah it is true The true speed of a moving car on the Earth, if you want to be very precise,

    asked by Haley on May 10, 2007
  28. Precalculus

    Every point in the plane has exactly two polar coordinates. A)The statement is true because every point in the plane has a unique polar representation. B)The statement is false because left parenthesis r comma theta right parenthesis equals left

    asked by Brian on January 12, 2017
  29. math,algebra

    can someone just set up the equations for me for this problem. thanks... Problem #1 A plane took 1 hour longer to travel 560 miles on the first portion of a flight than it took to fly 480 miles on the second portion. If the speed was the same for each

    asked by jasmine20 on April 17, 2007
  30. math

    A)if a sum invested dains 10% each yr, how long it will take to duoble its value? B)if an object depreciates in value by 10% each yr, how long will it take until only half of the original value remains? C)why aren't these two answers (A & B) the same? D)is

    asked by Anonymous on March 6, 2010
  31. Partial Differential Equations

    Problem 4.4- Suppose n o and n e are given. In (a) you only need to find the magnitude of the group velocity. Problem #2 in HW 10 may be helpful. You can also directly use the definition of group velocity, i.e., v g = triangle k w (k), taking into account

    asked by Joy on November 12, 2013
  32. Physics (Please Help)

    Problem 4.4- Suppose n o and n e are given. In (a) you only need to find the magnitude of the group velocity. Problem #2 in HW 10 may be helpful. You can also directly use the definition of group velocity, i.e., v g = triangle k w (k), taking into account

    asked by Joy on November 14, 2013
  33. arithmetics

    I still don't understand how you got those answers?drbob how did you get 0.75 divided by 112.50? can someone else help me understand? #6 After an article is discounted at 25% it sells for $112.50. The original price of the article was? answer 150.00 #7 A

    asked by chrisssy on August 1, 2007
  34. fractions

    fraction word problem. please advise on how to work the problem Phillip and Jane had a pie each. Phippip ate 1/4 of his and Jane ate more of the pie than Phillip. Which fraction of his pie could Jane have eaten. Possible answers: 2/5 1/6 2/8 or 1/8

    asked by Suzanne on June 10, 2011
  35. PHI 103

    After being told that she is being punished for lying, a child responds by telling her mother that she also lied. This response may involve which fallacy? Ad homimen (tu quoque) Ad verecundiam (ex libris) Ad misericordiam (ex ante) Ad baculum (antebellum)

    asked by Siri on December 16, 2011
  36. (Math) Help me solve this Pls.

    Write a linear system of equations that can be used to solve these problems. Then, solve to get your final answer 1. An exam worth 145 points contains 50 questions. Some of the questions are worth two points and some are worth five points. How many two

    asked by LadyPhantomhive on January 5, 2016
  37. math

    Can someone please double check my answers (My answers are in Capital) 1. If you produce a million products a day and you want to test ten of them to determine if they are up to standard, which ones will you choose? a. The second ten B. TEN RANDOM UNITS c.

    asked by mysterychicken on June 17, 2013
  38. algebra

    Compound interest word problem. Suppose JJ has $1000 that he invests in an account that pays 3.5% interest compounded quarterly. How much money does JJ have at the end of 5 years? Formula: A= The amount of money earned after a certain length of time. P=

    asked by Mike on August 1, 2017
  39. trigonometry

    5.Find the complete exact solution of sin x = -√3/2. 10. Solve cos 2x – 3sin x cos 2x = 0 for the principal value(s) to two decimal places. 12. Solve tan^2x + tan x – 1 = 0 for the principal value(s) to two decimal places. 19.Prove that tan^2a – 1

    asked by Jose on December 16, 2012
  40. PE

    Your life expectancy can be related to the overall well-being of your body, your mind, and your relationships with other people. (true ***) or false Which side of the health triangle corresponds to having loving relationships with other and giving and

    asked by Hailey on August 22, 2016
  41. Physics

    The velocity vector V1 has a magnitude of 4.0 m/s and is directed along the +x-axis. The velocity vector V2 has a magnitude of 3.0 m/s. The sum of the two is V3, so that V3 = V1+V2 A. The x-component of V3 can be 3.0 m/s B. The magnitude of V3 can be 8.0

    asked by Jim on January 22, 2014
  42. physics

    The velocity vector V1 has a magnitude of 3.0 m/s and is directed along the +x-axis. The velocity vector V2 has a magnitude of 2.0 m/s. The sum of the two is V3, so that V3 = V1+V2 True False The magnitude of V3 can be -3.0 m/s The x-component of V3 can be

    asked by Anonymous on September 22, 2010
  43. physics

    The velocity vector V1 has a magnitude of 3.0 m/s and is directed along the +x-axis. The velocity vector V2 has a magnitude of 2.0 m/s. The sum of the two is V3, so that V3 = V1+V2 true for false The magnitude of V3 can be -3.0 m/s The x-component of V3

    asked by Anonymous on September 22, 2010
  44. Chemistry

    I need to take some following samples of these: *a hydrocarbon w/a molecular mass greater than 100 g/mo *something w/ L-carvone or D-carvone in it *a non-electrolyte that dissloves in water *something w/a pressure greater than 2.o atom *a proton donor can

    asked by VaNeSsA on February 5, 2007
  45. math

    The grass of a lawn grows slower the larger it gets. The length of the grass L is expressed in cm and the growth of the grass W in mm/day. If the grass is 2.7 cm tall at the end of day X, than it will be taller than 4cm 20 days later (assuming it will not

    asked by jacob on April 3, 2016
  46. math

    algebra in 8th your teacher is giving you a test worth 100 points containing 40 questions. There are two-point and four-point questions on the test. how many of each type of questions are on the test?

    asked by R on February 7, 2010
  47. English

    What do you lack in? What do you lack? I lack in common sense. I lack humor. I lack in patience. I lack in teamwork. I lack in _________ (Are the questions and answers all correct? Would you let me know more expressions suitable for the blank? Thank you.)

    asked by John on June 14, 2009
  48. chemistry

    a sample of nitrogen gas has a volume of 1.00 l at STP What is the temp in Celsius if the volume is 10.0 L at 2.00 atm * I know to use the combined gas law, and I got the question wrong in my homework assignment, reviewing for a test today please help.

    asked by James on November 21, 2011
  49. Algebra

    I have 3 questions with my answers and would like you to check them. If they're wrong, then please provide and explanation to how to do them. Thank you tutors. Write each sentence as an equation. 1. Eight less than 1/3 a number n is -13. My answer: 1/3-8n

    asked by anon on December 3, 2015
  50. algebra

    f(X) = p(1+ r/n) nt The principal is 50,000 The time is 3years the rate is 4%

    asked by Beatrice on December 5, 2011
  51. Fianance

    A bond’s value is the same as its principal amount when the coupon rate is

    asked by Suzymae on May 22, 2012
  52. Critical Analysis

    how do you identify the principal issue presented by the source.

    asked by Tim on November 12, 2009
  53. medical terminology

    what is the principal procedures and services of the dermatology department?

    asked by Paula on July 22, 2010
  54. Singh

    what is the total number of orbitals associated with principal quantum no. n =3

    asked by gurpreet on July 16, 2016
  55. Chemistry Help!

    In the n = 5 principal shell, what is the maximum number of electrons that can have m1= -2

    asked by Kamila on April 18, 2011
  56. math

    interest is 67.50 and rate is 3%, and time is 3 years. What is the principal?

    asked by valerie on January 2, 2013
  57. History/government

    Make a statement that best illustrates the principal of federalism.

    asked by Nicole on May 26, 2013
  58. Philosophy

    Does anyone know any websites that have in depth answers to philosophy questions? I have to answer these: Why is the notion of control so important to Epitectus? In what senses would you call Epicurus a materialist? atomist? naturalist? Explain how

    asked by Claire on July 21, 2008
  59. chemistry

    Hii i was wondering if u cud help me solve this problem..im not sure how to start it. Calculate the delta H for the reaction of solid potassium with liquid water. If a 5.00 g piece of potassium is added to 1.00 kg of water at 24 degrees celsius what is the

    asked by Anmol on November 5, 2009
  60. Math ~CHECK MY WORK PLEASE~

    Hello, Please check my answers, with stars (*) are my answers! Please check if they are wrong please tell the right answer and why it is right (explain it) so I can understand why! Thanks! For questions 1-2, solve the inequality. 1.) x + 8 < -28 a~ x < -36

    asked by Jenny on January 17, 2014
  61. physics

    Your roommate gives you a cylindrical can of peanut brittle, saying that she got it for free as a promotion at the grocery store,and that she doesn’t like it because it sticks to her teeth. Just as you are about to open it, you remember that it is April

    asked by ChrismB on May 16, 2016
  62. Algebra

    You have a piggy bank containing a total of 85 coins in dimes and quarters. If the piggy bank contain $14.50, how many dimes are there in the piggy bank? Interest=principal multiply Rate multiply 1, or interest=principal multiply rate.

    asked by Megan Brown on January 26, 2011
  63. ap government and politics

    hi. my teacher assigned us 20 questions and i got most of them, but i couldn't find the answers to these 4 questions. i did try google but it didn't help much. could someone please help me? List and explain how Congress carries out its’ three primary

    asked by Anonymous on May 6, 2012
  64. Physics

    I'm trying to prep for an exam, but I am struggling with the practice questions. I have answers for both questions, but I'm 95% sure they are incorrect. 1. Two students decide to run a race. The first student starts off at a constant speed of 5 m/s while

    asked by Chelsea on June 19, 2011
  65. Psychology

    Could someone see if I got any of the questions wrong. I feel that some questions have multiple answers but there is only one that is correct. Please help. thanks a lot State whether each scenario is an example of assimilation or accommodation. 1. A child

    asked by Mike on November 30, 2009
  66. Algebra 1

    An exam consists of two parts, Section X and Section Y. There can be a maximum of 80 questions. There must be at least 20 more questions in Section Y than in Section X. Write a system of inequalities to model the number of questions in each of the two

    asked by Kailey on May 7, 2012
  67. algebra

    An exam consists of two parts, Section X and Section Y. There can be a maximum of 95 questions. There must be at least 20 more questions in Section Y than in Section X. Write a system of inequalities to model the number of questions in each of the two

    asked by helen on January 11, 2014
  68. math

    An exam consists of two parts, Section X and Section Y. There can be a maximum of 80 questions. There must be at least 20 more questions in Section Y than in Section X. Write a system of inequalities to model the number of questions in each of the two

    asked by john on April 28, 2012
  69. history

    In the advertisement "five questions to those who employ male servants" what was the main goal of the advertis advertiser? 1. to use fear to get men to enlist in the army 2. to use partiotic pride to gain support for war efforts 3. to condemn those who

    asked by Ciara's Sister on December 16, 2011
  70. Binomial Distribution

    A biology quiz consists of twelve multiple-choice questions. Eight must be answered correctly to receive a passing grade. If each question has five possible answers, of which only one is correct, what is the probability that a student who guesses at random

    asked by Price on April 19, 2012
  71. sra JMcGuin spanish

    Hi - free period - I hope to haev it completed by 7:00 pm tonight it takes me some time to type the questions nad my answers. That was why my mom suggested a private tutor so we could fax or work at my home. My advanced math tutor gets 70.00 an hour.

    asked by sam on November 7, 2007
  72. College Algebra

    I'm sorry I wrote the problem wrong previously. "The equation x^2-9x-1=0 has 2 solutions A and B. Where A < B. x^2-9x-1=0 (x-9)x=1 x^2=9x+1 (x-9/2)^2-85/4=0 Solutions x=1/2(9- sq root 85) and x=1/2(9 + sq root 85) I also have a second similar problem.

    asked by Anonymous on June 2, 2014
  73. MATH

    Wendy answered 85% of the questions on her history test correctly. There were 40 questions on the test and all the questions had equal value. How many questions did Wendy NOT answer correctly on her test?

    asked by PLEASE HELP on March 7, 2011
  74. groundwater science

    Consider water in a well, and a point of measurement at depth below the surface of the water. True or False: if the point of measurement is located at an elevation of 2,000 ft. above mean sea level, and that point of measurement is 40 ft. below the water

    asked by Luke on February 5, 2011
  75. MATH

    The median number of goals scored by 8 players in a certain soccer season is 5. The range of the number of goals scored by those players that season is 4. Determine if the following statement is true, is false, or does not contain enough information. At

    asked by rish on May 1, 2016
  76. predication?

    what is difference between predicate predicator and predication? Clean up the most threatened areas. In grammar, the predicate is the main verb and all the words and phrases and clauses that go with it. http://www.answers.com/predicate Scroll down a bit

    asked by jessy on May 1, 2007
  77. physics

    The formation of condensation on a glass of ice water causes the ice to melt faster than it would otherwise. If 8.80 g of condensation forms on a glass containing water and 170 g of ice, how many grams will melt as a result? Assume no other heat transfer

    asked by Eric on July 20, 2013
  78. physics

    The formation of condensation on a glass of ice water causes the ice to melt faster than it would otherwise. If 8.80 g of condensation forms on a glass containing water and 170 g of ice, how many grams will melt as a result? Assume no other heat transfer

    asked by Alice on July 20, 2013
  79. Pre-Cal:(Cont.)

    [Note: I've tried this problem 4 times already and still have it wrong. I know the steps to doing it but for some reason its wrong. an someone please help me get these answers for (b).] An equation is given. (Enter your answers as a comma-separated list.

    asked by Amber on July 12, 2016
  80. us history

    When Hawaiians announce their intention to end foreign influence on the islands, Ameerican business helped to start a revolution in 1893 to topple the government. ----------------------False? My us history book only talks about foreign influence when

    asked by CM on April 8, 2008
  81. Algebra-Functions

    Could you please check my answers and help me with two problems? Determine which two functions are invereses of each other. 1. f(x)=5x, g(x)x/5, h(x)5/x -I got that f(x) and g(x) are invereses of each other 2. f(x)=x-2/(2), g(x)=2x-2, h(x)=x+2/(2) -I got

    asked by Soly on September 14, 2007
  82. CHEMISTRY

    Using a 0.20 M phosphate buffer with a pH of 6.5, you add 0.72 mL of 0.46 M NaOH to 58 mL of the buffer. What is the new pH of the solution? (Enter your answer to three significant figures.) I don't even know where to begin!! I just need a set up of the

    asked by Mack on March 3, 2015
  83. Chemistry

    What volume (in milliliters) of 0.100 M NaOH should be added to a 0.120 L solution of 0.024 M glycine hydrochloride (pKa1 = 2.350, pKa2 = 9.778) to adjust the pH to 2.95? I don't know how to do this problem! Steps with answers please!! HELP!!

    asked by Bobby on February 28, 2016
  84. Ms. Sue Help me, please

    Hello, I was wondering if it was possible for you to assist me in having a science/biology teacher answer my question. It is called 12 Biology and I reposted as Biology Lab Banana DNA. My reason for this is that so many questions keep popping in, all in a

    asked by LC on April 2, 2008
  85. algebra

    the equation is f(x) = (1/sq. root of 1-x^2) 1. f(x) is never zero. 2. 0 is in the domain of f 3. All negative real numbers are in the domain of f 4. All positive real numbers are in the domain of f 5. 1 is in the domain of f 6. f(x) is never negative 7.

    asked by Josh on September 24, 2010
  86. CHECK PLEASE

    I think its B only Which statements are true about the agricultural revolution? Choose all answers that are correct. A. It occurred at different times in different places over many years. B. It changed people's lives because they now had nearly complete

    asked by Matt on August 22, 2014
  87. Debug=true

    The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL: 1. Add a "Debug=true" directive at the top of the file that generated the

    asked by Amy~ on January 13, 2011
  88. Physics Thanks

    Please help... Let g be the acceleration due to gravity at the surface of a planet of radius R. Which of the following is a dimensionally correct formula for the minimum kinetic energy K that a projectile of mass m must have at the planet's surface if the

    asked by Kelly on May 13, 2007
  89. pigskin geography

    Here is the question, The Wonders of American stamp series informs us the American bullfrog is the largest frog,and perhaps the loudest. Their bodies grow to what size?___inches. Their calls can be heard how far away ____miles. I got the answer to the

    asked by Lanna on October 14, 2006
  90. math

    A sales manager was given a bonus of $6,090 on the year's sales of $400,000. When answering the following questions, please make sure your final answers are in percentage form and are accurate to 2 decimal places. For example 34.56%. a) What was the bonus

    asked by suvi on February 7, 2010
  91. connection academy math

    In the diagram below, jill lives on street q and samantha lives on street r. Since street p is a transveral for streers q and r. which term describes the location of the angle of samanthas friends' house? Please,please help if you have the answers to this

    asked by HELP PLEASE on December 15, 2015
  92. Early Child Ed.

    Would you please check these questions and my answers to be sure that I have chosen the most appropriate answer? 1.Which one of the following does NOT agree with the developmental approach? A. Development is influenced only by maturation. B. Development is

    asked by Tamera on July 20, 2007
  93. Statistics

    Over time, a student analyzes her ability to guess correctly after narrowing down multiple choice answers in a 5-selection question (a through e). She discovers that if she narrows her answers to 2 or 3 choices, her probability of getting the right answer

    asked by PetarI on November 20, 2012
  94. Chemistry

    Predict and draw the structure of the product of the reaction of the following substrates with the given reducing agent. 2-hexanone mixed with hexanoic acid with (i) NaBH4 (ii) LiAlH4

    asked by Anonymous on October 21, 2014
  95. science-chemistry

    Predict and draw the structure of the product of the reaction of the following substrates with the given reducing agent. 2-hexanone mixed with hexanoic acid with (i) NaBH4 (ii) LiAlH4

    asked by Anonymous on August 23, 2017
  96. Chemistry 2

    Which is the oxidizing agent in the reaction below. Cr2O72- + 6S2O32- +14H+ > 2Cr3+ + 3S4O62- +7H20 A. Cr3+ B. S4O62- C. Cr2O62- D. S2O32- E. H+ I believe it's D or is it C not 100% sure please help. THANKS

    asked by Debbie on April 6, 2012
  97. 2nd attempt Essay for Photography

    I posted this before, but failed to paste the essay! oops.. haha. So here's the essay. Please proofread and critique and comment. I'm not so sure about the conclusion. It feels a little weak to me..thanks!!! People seek the answers of their own questions

    asked by michelle on March 11, 2007
  98. Calc

    a) y =ln(x-1) find dy/dx=? b) y=3 ln x - ln (1/x) where x >0, dy/dx= ? My teacher says the answers are a) (2x)/(x^2-1) and b) 4/x I am not sure how you find the derivative when they involve ln. Could you please explain to me how to get these answers? I

    asked by Jamie on January 16, 2007
  99. physics

    The formation of condensation on a glass of ice water causes the ice to melt faster than it would otherwise. If 7.40 g of condensation forms on a glass containing water and 210 g of ice, how many grams will melt as a result? Assume no other heat transfer

    asked by Alice on July 21, 2013
  100. physics

    The formation of condensation on a glass of ice water causes the ice to melt faster than it would otherwise. If 7.40 g of condensation forms on a glass containing water and 210 g of ice, how many grams will melt as a result? Assume no other heat transfer

    asked by Eric on July 20, 2013