1. Math

    A fair coin is flipped four times. What is the probability that tails occurs exactly 3 times if it is known that tails occurs at least twice?
  2. Macro-econiics

    If prices are flexible, what occurs when there is a surplus of widgets? If prices are flexible, what occurs if there is a shortage of trinkets?
  3. Math

    "If a quadrilateral is a rectangle, then it is a parallelogram." i) is the converse true? ii) is the inverse true? iii) is the contrapositive true?
  4. sociology

    How a person respond to this type of statement? I am not sure how I would respond to this statement. Do you have any suggestions to how one might respond? Is this true or a false statement? (I think it might be a true statement) We all hold different
  5. Economics

    I think I get this but could use some guidance to make sure, I am having problems with 2e). 1)In an article about the financial problems of USA Today, Newsweek, reported that the paper was losing about $20 million a year. A Wall Street analyst said that
  6. calculus

    true or false- if the sum from n=1 to infinity of a(n) converges and an is greater than 0, then the sum from n=1 to infinity of the sin (a of n) converges. i said this was true because the sin where a is greater than 0 will always be greater than one and
  7. calculus

    true or false- if the sum from n=1 to infinity of a(n) converges and an is greater than 0, then the sum from n=1 to infinity of the sin (a of n) converges. i said this was true because the sin where a is greater than 0 will always be greater than one and
  8. P.E

    1. One of your friends plays video games for at least six hours each day and gets upset when he has to eat dinner with his family. This is a sign of? a. An anxiety disorder. b. A phobia c. Bipolar disorder d. An impulse-control disorder 2. A phobia is an
  9. Algebra 2

    In a quiz program, 3 questions on sprots, 3 questions on general knowledge, and 4 questions on science are printed separately on 10 cards and placed upside down. John is asked to select 2 cards at random. What is the probability of Joohn selecting 2
  10. computer

    You can only work with graphics within Paint; you cannot insert text. True False False? If you want your text to be centered on each line in a Word document, then you need to use __________. left alignment center alignment right alignment justified
  11. British Literature

    Hello, would anyone be willing to check my answers to the following questions? 1. Identify the poetic element used in the following lines from Percy Bysshe Shelley's poem "Ode to the West Wind." The phrase "Thou who didst waken from his summer dreams/The
  12. Algebra

    I have this math probelm z-(3z)/(2-z)=(6)/(z-2) in my book it says to solve the equation. I have worked this problem many times and I keep comming up with different answers. When I use an online calculator to check my work it is giving me an answer of z=-3
  13. chemistry

    A 20.0 gram sample is a mixture of sodium phosphate ,sodium mono-hydrogen phosphate,sodium dihydrogen phosphate and sodium chloride. The sample is dissolved in 100.0 ml of deionized water and titrated with 1.5 M hydrochloric acid. The initial pH of the
  14. chemistry

    A 20.0 gram sample is a mixture of sodium phosphate ,sodium mono-hydrogen phosphate,sodium dihydrogen phosphate and sodium chloride. The sample is dissolved in 100.0 ml of deionized water and titrated with 1.5 M hydrochloric acid. The initial pH of the
  15. NVQ level 3 buisness admin

    ok im really struggling on the questions on unit 314 hy the hell is there no question marks i have to anwser them like questions,its confusing me?? please can anyone shed a light over my way please.x cheers ema We don't have access to NVQ questions. Please
  16. ece

    analyze the importance of collecting and reviewing data before implenting. Specific interventions to address challenging.
  17. chemistry

    I'm reviewing for a test tomorrow, and I was wondering about this question. Convert 55 mi/gal to meters/liter. I'm not sure how to go about it, though when I tried it I got 89000.0m/4L. But, I'm not sure if that is right.
  18. physics

    Over a period of 9.0 seconds a plane changes its velocity from 29.5 m/s to 45.7 m/s. What is its uniform acceleration? ---------------- I'm reviewing for my final and i can not think of what the formula to solve this is.
  19. History

    1. What motivated Bismarck to enact reforms in Germany? 2. What kind of reforms were inacted in Germany and Britian? My answers: 1. Bismarck wanted Germany to be more united and when nationalism spread through Germany it helped Germany become a leading
  20. Modern World Studies

    1. What motivated Bismarck to enact reforms in Germany? 2. What kind of reforms were inacted in Germany and Britian? My answers: 1. Bismarck wanted Germany to be more united and when nationalism spread through Germany it helped Germany become a leading
  21. Math

    Which Statements of congruence are true and which are false and why? 177 _= 17 871 _= 713 1322 _= 5294 5141 _= 8353 13944 _= 8919 67 x 73 _= 1 x 3 17 x 18 x 19 x 20 _= 4! 83 (144 power) _= 15 (144 power) Their not equals signs...they are three lines on top
  22. Comm 100 college

    Persuasive speeches focus on forcing the audience to change the way it thinks and feels. TRUE OR FALSE I just wanted to double check on this, because I don't think you are for say "forcing" them to think differently, but giving them the info to let them
  23. statistics

    A student took a 25 question true and false test answering the question randomly without reading. If a score of 18 is correct is the minimum passing graade, how likely is it that the random guesser will pass the test? This is binomial although there is a
  24. Math

    Which Statements of congruence are true and which are false and why? 177 _= 17 871 _= 713 1322 _= 5294 5141 _= 8353 13944 _= 8919 67 x 73 _= 1 x 3 17 x 18 x 19 x 20 _= 4! 83 (144 power) _= 15 (144 power) Their not equals signs...they are three lines on top
  25. Math

    Hi this is a dimensional analysis problem,I want to solve for x. 300x^2 -16.667x^3+(-7200)=0 after getting 300x^2 -16.667x^3=7200 I really don't know what to do. Plz help. Math (Dimensional Analysis) - Reiny, Thursday, November 24, 2011 at 11:27am This is
  26. Photography

    IS this statement true or false? 100 ISO for film = 800 ISO for digital. I'm not sure. I only learnt ISO for digital. I don't know how to check if they are both equal.
  27. science

    IF WE KEEP A GLASS ROD IN HOT WATER WE CAN STILL HOLD THE GLASS ROD WITH OUR HAND.IT SHOWS THAT GLASS IS A GOOD CODUCTOR OF HEAT. WHETHER TRUE OR FALSE
  28. Java

    The way event driven programming works in Java is that a handler object fires an event, and a source object processes the event. True or False
  29. Math TRUE or FALSE Help

    You do not need to flip the inequality sign when solving the inequality -3t + 7 ≥ 9. TRUE or FALSE? I'm not that great at knowing when to flip inequality signs... Can someone help me ASAP? Thank you for your assistance in advance. Nic
  30. math-calculus

    which of following statements is false 1. The absolute value of a real number is the principal square root of the square of the number. 2. The absolute value of a real number is the distance of the number from zero on a number line. 3. The absolute value
  31. Organic Chemistry

    So we did a preparation of t-pentyl Chloride experiment in class the other day using t-pentyl alcohol, HCL, Aqueous sodium Bicarbonate, and calcium chloride as the drying agent. Little confused on a few of these questions Aqueous sodium bicarbonate was
  32. physics

    An induced emf occurs in a conducting loop of wire 1.12 m long as its shape is changed from square to circular. What is the average magnitude of the induced emf if the change in shaper occurs in 4.25 sec and the local 0.105 T magnetic field is
  33. English - The Red Badge of Courage

    1.Why did the youth enlist? (1 point) He was eager to join the war.***** He was drafted. He wanted to avenge the death of his friend. 2. From what point of view is the story told? (1 point) first-person point of view third-person limited point of view*****
  34. art

    Create a table with the following column headings: Manager, Teammates, Travel Agent. „h Add the following row headings to the table: Purpose, Audience, Tone, Content. „h Use the table to enter the appropriate purpose, audience, tone, and content for
  35. business

    You have been retained to analyze how many check-in agents should be used at a check-in counter for a large hotel. During normal business hours, customers arrive at a rate of about 24 per hour, and it takes about 7 minutes to complete the check-in process.
  36. Chemistry

    The principal quantum number (n): (1) specifies the subshell of the orbital. (2) specifies the principal shell of the orbital. (3) specifies the 3-D shape of the orbital. (4) specifies the maximum number of electrons. (5) none of the above
  37. Chemistry

    The principal quantum number (n): A) specifies the subshell of the orbital. B) specifies the principal shell of the orbital. C) specifies the 3-D shape of the orbital. D) specifies the maximum number of electrons. E) none of the above
  38. Chemistry

    The principal quantum number (n): 1) specifies the subshell of the orbital. 2) specifies the principal shell of the orbital. 3) specifies the 3-D shape of the orbital. 4) specifies the maximum number of electrons. 5) none of the above
  39. Biology

    true or false if an organism randomly develops a feature that gives it a survival advantage, then it will be more likely to survive than other organisms, and will also be more likely to produce offspring which also have this advantageous feature.
  40. Math

    True or false Some rational numbers are integers. The radius of a circle and its circumference. Direct or inverse f(x) 0.08x^3 + 0.6x + 2.8 Rational function, another polynomial function Quadratic function
  41. Math

    Some rational numbers are integers. True or false The radius of a circle and its circumference. Direct or inverse f(x) 0.08x^3 + 0.6x + 2.8 Rational function, another polynomial function Quadratic function.
  42. science(check answers)

    please check my answers 1. B 2. A 3. D 4. A 1.B 2.A 3.D 4.A 1.All renewable resources are inexhaustible A.true B.false 2.Some fuels,called biofuels,are made from plants.They are used in cars and other machines biofuels would fit best in which of the
  43. Economics

    A person is willing to pay $50 per visit for physical therapy, but she pays $35 per visit. This person receives a consumer surplus of $85 per visit. Is this true or false/
  44. not working

    how am i supposed to show you the problem i have if your site wont allow websites to be used in questions?
  45. Chemistry

    Hi, I'm trying to solve some chemistry problems, like the ones my teacher says will appear on our exams. The problem reads like this: What is the hydrogen conentration in a bleach sample that register 9.55 using a pH meter? My Attempt: Since this sample
  46. Statistics

    Answer “True” if the statement is always true. If the statement is not always true, replace the underlined words with words that make the statement always true. Alpha is the measure of the area under the curve of the standard score that lies in the
  47. Math

    A school wants to build a fence to enclose a rectangular 4-sided playground of 144m^2. What is the min cost for a fence if it costs $5.70 per meter of fencing? 2. The principal checks the budget an sees that only $228 is available for the purchase of
  48. Algebra 1

    Can someone please check my answers? Thanks! :) 1.) Which of the following inequalities is true for all real values of x? a.) x^2≤x^3 b.) 2x^3≤4x^2 c.) 4x^2≤94x)^2 d.) 4(x-3)^2≥4x^2-3 My answer: B. 2.) Which of the following inequalities is true
  49. Algebra 1

    Can someone please check my answers? Thanks! :) 1.) Which of the following inequalities is true for all real values of x? a.) x^2≤x^3 b.) 2x^3≤4x^2 c.) 4x^2≤94x)^2 d.) 4(x-3)^2≥4x^2-3 My answer: B. 2.) Which of the following inequalities is true
  50. Math

    If ln a=2, ln b=3, and ln c=5, evaluate the following: (a) ln(a^−2/b^4c^−3)= -.9524 (b) ln(√b^−4*c^1*a^−1)= -1.739 (c) ln(a^2b^4)/ln(bc)^−2= 42.39 (d) (ln(c^−1))*(ln(a/b^3))^−4= -.03507 I am getting these answers but the problem gives me an
  51. Chemistry 2

    A United Nations toxicologist studying the properties of mustard gas, S(CH2CH2Cl)2, a blistering agent used in warfare, prepares a mixture of 0.675 M SCl2 and 0.973 M C2H4 and allows it to react at room temperature (20.0°C ). SCl2 (g) + 2 C2H4 (g) -->
  52. science

    if a magnet is moved in and out of a coil of a copper wire, electrcity begins to flow through the coil. True or False If the coil is in a closed circuit then electricity will flow, if not there will be only an induced emf.
  53. HELP? Health

    Because of the Health Insurance Portability and Accountability Act (HIPAA), privacy and security of health information technology are not a concern in regional health information organizations. True False
  54. English!

    To correctly quote from a source the information must be enclosed in quotations marks and include a reference to the source in parentheses, for example, "Poor diet and lack of exercise are known contributors to the epidemic of type 2 diabetes spreading
  55. English

    Which sentence most clearly exhibits bias? A. The professor’s points appear to be based on outdated research. B. If my argument is true, Blake’s argument is clearly false. C. Few would disagree that poor people are incapable of rational thinking. D.
  56. Algebra

    I am trying to factor polynomials by grouping the first two terms and the last two terms, but I am having some issues, I have done a few correct since I can look at the answers to the odd problems but it is taking me arund 25 minutes per problem. here is a
  57. Bio-Genetics

    In watermelons the allele for green color and for short shape are dominant over the alleles for striped color and for long shape. A plant with long striped fruit is crossed with one heterozygous for both characteristics. The results are: green, short: 14
  58. Chemistry

    23. In a chemical reaction, dynamic equilibrium occurs when the rate of the forward reaction becomes precisely equal to the rate of the reverse reaction. All of the following statements are true EXCEPT A. A dynamic equilibrium occurs when the reaction is
  59. ashford

    All of the following are true of what typically occurs when first meeting someone EXCEPT: (Points : 1) First impressions are based mostly on facial appearance. We form our impressions of others within less than a second of meeting them. We form conclusions
  60. algebra

    A principal of $5000 was invested in a savings account for 4 years. If the interest earned for the period was $400, what was the interest rate? i know this is 1.5 % or at least I think it is but how do i write it out? Use the equation I=Prt, where
  61. psychology

    I need feedback on my choices. Did I choose the right answers to each of the 2 questions below? If not what is the correct answer for the questions that I got wrong ? 1. Dr. Schmidt studies the factors that activate and direct behavior toward an
  62. Math

    L1: (-2,-1), (1,5) L2: (3,5), (5,9) These lines are parallel because they have the same slope but different y-intercepts.(Is this true and if it is how do you solve the problem and graph it)
  63. Math

    L1: (-2,-1), (1,5) L2: (3,5), (5,9) These lines are parallel because they have the same slope but different y-intercepts.(Is this true and if it is how do you solve the problem and graph it)
  64. PreCalculus

    I tried to do these questions, however I can't seem to get the answer. Can someone help me? I would really appreciate it. _____________________________________ Mathematical Induction Prove that the statement in true for every positive integer n. 1. 1/1*2*3
  65. Early Child Ed.

    Would someone also please check thse questions and my answers to make sure I have chosen the best possible answer? 1. A good example of people-first language is: A. "He has cerebral palsy." B. "She's a Down's baby." C. "This is a child with attention
  66. Math

    Could someone please check my questions? My answers are under the questions... and any help will be greatly appreciated 33. Jane works at the public library after school. She makes $7.00 per hour. She cannot work more than 15 hours per week. If y = 7x
  67. math

    Could someone please check my questions? My answers are under the questions... and any help will be greatly appreciated 33. Jane works at the public library after school. She makes $7.00 per hour. She cannot work more than 15 hours per week. If y = 7x
  68. criminal procedure

    In a hearing challenging the probable cause upon which an arrest was based, a warrantless arrest is viewed the same as an arrest based on a warrant. True or false ?
  69. Chemistry

    True or False? An identical cylinder filled with the same pressure of hydrogen contains more molecules because hydrogen molecules are smaller than oxygen molecules.
  70. Math

    Compound Interest A Interest paid on the principal and the interest of a deposit or loan. B Percentage of discount on a purchase C The amount on income taxes paid by a business D Interest paid only on the principal of a deposit or loan Is it d?
  71. LA....help!!!????

    Someone from connections academy 7th grade gifted and talented LA??!!! help! check answers, dunno whether to send in or not!! 1. Which of the following statements about "3BCB: Three" by Clay Bennett is NOT true? (1 point) the cartoonist is concerned about
  72. English

    1. To make a guess today's topic 2. To listen to teacher's explanation 3. To write own reviewing note (Are the sentences above correct?) 4. To make a guess about today's topic. 5. To listen to Teacher's/the teacher's explanation 6. To write your own
  73. Science....

    1.If a geologist found two fossils of different species buried next to each other in a rock layer, he or she might hypothesize that the two organisms may have been alive during the same time period. true*** false 2.How do layers B and D compare in age? If
  74. Algebra

    True or False. 1. If q is negative, then the square root of q^2 = q. 2. If r is positive, then the square root of r^2 = -r.
  75. geometry

    one side of a parallelogram has endpoints (2,1) and (3,5) The endpoints for the opposite side are (5,2) and (6,6) true or false
  76. Liberal Arts Math II

    The following argument is valid: No student is happy You are happy Therefore, you are not a student A) True B) False
  77. Math-Linear Equations

    True or false? A line perpendicular to a line whose slope is -0.75 has a slope of 1.3 repeating. Please help me with this.Thank you
  78. math

    The derivative of f(x)=square root of {x} with respect to x is given by f'(x)={1}/square root of {x}.it is true or false?
  79. Physics

    A parallel plate capacitor with plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V. (C is the capacitance and U is the stored energy.) Answer the following questions regarding the capacitor charged
  80. Chemistry

    Barium carbonate and nitric acid reacts in a double displacement reaction. One of products also dissociates and evolves carbon dioxide. Write the net ionic reaction including the proper use of phase labels for this solution run in aqueous solution. After
  81. Stats

    A statistical test is performed, and its P-value turns out to be about 3%. Which of the following must be true? Pick all that are correct. a) The null hypothesis is true. b)There is about a 3% chance that the null hypothesis is true. c) The alternative
  82. english

    The following arguments contain various kinds of fallacies. Evaluate each and identify the fallacy using the matching list at bottom. 1. We can recognize that athletes who participate in sports must be given special consideration in our grading system, or
  83. Literature 1010

    Transitions function much like road signals. A) True B) False this question does not make sense. when i look in my book ans online, i do not see anything referring to the Transitions function can someone tell me what a transition function relating to
  84. Math

    A real estate agent to sell a large apartment complex according to the following commission schedule: $45,000 plus 25% of the selling price in excess of $900,000. Assuming that the complex will sell at some price between $900,000 and $1,100,000, inclusive,
  85. Chem

    When doing a limiting reagant problem, I need to determine to mole ratio, right? But the problem is if 19.6 g of H3PO4 reacted with 22.4 g KOH... How do I get two separate mole ratios? The answers are: 3/1 for H3PO4 and 3/3 for KOH, but why?
  86. history

    True / False If false change the word in ( ) i missed several of these and i need to turn it in again and i don't know which ones i answered right or wrong....plz help In (salutary neglect) a nation colonizes to create wealth for itself and to create
  87. Math

    In the questions below P(x,y) means “x and y are real numbers such that x + 2y = 5”. a) Determine whether the statement ∃x∀yP(x,y) is true. b) Negate the statement ∃x∀yP(x,y).
  88. math

    Which three options are true about motion in a straight line. A. A particle which moves at an increasing velocity has a constant acceleration. B. If two particles always have the same velocity as each other, their separation does not change. C. A particle
  89. economics

    if you could verify/falsify my answers on these multiple choice questions and possible give me insight on possible correct answers, that would be great. thanks! 1. Which is an acceptable market method of regulating negative externalities? A. Legal action
  90. Statistics

    Astudent makes random guesses on 6 multiple-choice questions. One of the 5 choices in each question is correct. What is the probability that the student will get at most 4 answers right?
  91. social studies

    who authorized a group of french merchants to create colonies in north america You posted over twenty of these homework questions. What do you think are the answers?
  92. English

    Which of the following is an evaluation tool using questions and answers that lead to effective strategies? A. Thesis B. Outline C. Flowchart D. Graphic organizer my answer is c.
  93. Chemistry

    Thank you! I redid my questions and I got the following answers. Please let me know if they are correct! I am really unsure about the significant digits! 1. 135.32g NH3 2. 1.85g H2 3. 9.93X10^19 molecules.
  94. stas

    find the probability of correctly answering the first 2 questions on a multiple choice test if random guesses are made and each question has six possible answers
  95. Biology

    these are some of the questions that i couldn't find the answers in the book. :( 17.The relationship between a fungus and a green organism is an example of a. neighbors. b. mutualism. c. parasitism. d. saprophytes.
  96. Social Studies 3

    What did Churchill mean when he said "iron curtain"? You need to start stating what YOU think the answers are for YOUR questions. Then the tutors here will be able to give you feedback and point you in the right direction if needed. =)
  97. MATH Prob.

    Find the probability of correctly answering the first 4 questions on a multiple choice test if random guesses are made and each question has 3 possible answers.
  98. supply and demand

    I'm looking for help on the third part of this question. I've included preceding questions/answers to show where I'm at. I don't know what to do next. Suppose that a market is described by the following supply and demand equations:
  99. 2 quick history questions

    I've looked all over google but can't find these two answers to these questions 1. Where was the Dutch West Company? 2. Where does Ferdinand Magellan leave his crew? Plz help! Thanks
  100. Science

    When are the accelerations of two interacting bodies, A and B, equal? And what does the escape velocity of a planet tell us? These two questions look like the easiest of my homework, but I can't find the answers anywhere in my notes! Thanks.