Critical Thinking/Math

9,720 results, page 78
  1. Logic

    This exercise relate to the inhabitants of the island of knights and knaves created by Smullyan, where knights always tell the truth and knaves always lie. You encounter two people, A and B. Determine, if possible, what A and B are if they address you in
  2. Reference Letter

    Hey Im trying to write a Reference letter, and Im kind of having trouble starting off. I have to imagine myself as an adult who knows me as a student.Then I have to create a made up letter of reference for myself based on what I hope someone would honestly
  3. English

    I have a question we were suppose to analyze The River by Bruce Springsteen in which a guy speaks of how the youthful dreams his girlfriend and him have had all disappeared. He remembers those dreams the way he remembers the way they used to go to the
  4. Chemistry

    This is a problem I got on my Mastering Chemistry homework: Consider the following reaction: H2(g)+I2(g)⇌2HI(g) A reaction mixture at equilibrium at 175 K contains PH2=0.958atm, PI2=0.877atm, and PHI=0.020atm. A second reaction mixture, also at 175 K,
  5. chemistry

    if 37.9 liters of NO at .993atm and 146 degrees celcius are decomposed by the reaction 2NO-->N2+O2 how many grams of nitrogen will be formed... could you show mw step bu step how to do this ? thanks....i have finals tommorrow.... i need
  6. Civics

    Pedro is thinking about buying U.S. savings bonds. However, there is a financial institution controlled by the government that may actively discourage Pedro from buying bonds. How and why would such a financial institution do this? A. Stocks on Wall Street
  7. English

    Sorry, but what are some examples of these themes from A Raisin In The Sun. I tried to do some and don't know if they are right. I was also ask to find out what the rhetorical device for the examples of each theme represents. So please help me. 1. Values,
  8. Math ms sue help

    please help me with these defintions of math terms please: a number that can be expressed as the product of 3 equal factors? a number that can be expressed as the product of 2 equal factors product of 1 and a radical product of a rational number and a
  9. accounting

    On January 1, 2004, Carnival Shipping bought a machine for $1,500,000. At that time, this machine had an estimated useful life of six years, with no salvage value. As a result of additional information, Carnival determined on January 1, 2007, that the
  10. U.S History

    Which group believed that failure to approve the Constitution would lead to chaos and mob rule? Federalists**** Anti-federalists 2. Which group believed a strong national government was critical to the country? Federalists*** Anti-federalists 3. Which
  11. algebra1

    What steps do I take in solving this problem? It is about graphing inequalities. 10x+4¡Ý9x+17 put the equation in the form of y ? x + constant. ? means greater than or less than. That is the first step. You are getting no more help until you start
  12. Child Development Question

    Negative behaviors by toddlers which tax the patience of adults may be a sign of which? A. HAVING BEEN SPOILED B. INSECURITY AND FEAR OF FAILURE C. An EMERGING SENSE OF AUTONOMY D. HOSTILITY TO PARENTS AND CAREGIVERS I am thinking (D)hostility to parents
  13. ethics in health care

    Managed care was introduced into the U.S. healthcare system in an effort to control costs while still providing quality healthcare to Americans (Moore, 2009). However, opponents of managed care have pointed to a potential ethical pitfall of skimping on
  14. Math 201

    I am having problems with this question in my math class. Consider a student loan of ​$25,000.00 at a fixed APR of 12% for 25 years. a. Calculate the monthly payment. The monthly payment is $263.31 b. Determine the total amount paid over the term of the
  15. Calculus help, very confused!!

    A fundamental problem in crystallography is the determination of the packing fraction of a crystal lattice, which is the fraction of space occupied by the atoms in the lattice, assuming that the atoms are hard spheres. When the lattice contains exactly two
  16. factors which influence

    List three different factors which influence the rate of enzyme activity and specifically explain each factor’s influence on enzyme activity. Since enzymes are protein, they are very sensitive to environmental conditions. The very nature of large 3-
  17. special ed

    I need to make lesson plans for students with mental retardation. Can you please tell me what you think of my ideas. For Pre-K work on gross motor skills, play simon says, use songs that make the child use their motor skills (if you're happy and you know
  18. chemistry

    which has the most acid coke or vinegar I don't have any numbers to support my thinking but I know MOST brands of vinegar are 5% acetic acid (although I saw one recently at 4%). I think coke is about 0.05 M but I don't KNOW that. In addition, k1 for H2CO3
  19. English

    Read the short conversation,and find out what he or she means. 1.Angel:I know you were really stressed out about your math exam.How'd you do? John:I can't complain. What does the man mean? a.A he doesn't want to tell the woman how he did. b.He did quite
  20. equilibrium

    when Br2 (5.7mol) and Cl2 (.0934mol/L)in a 61 L vessel at 604'C are allowed to come to equlibrium the mixture contains .0523 mol/L of BrCl. What concentration of Cl2 is reacted? - i know how to find the Kc... Br2 + Cl2 ==> 2BrCl 0.0523 mol/L BrCl at
  21. Chemistry

    Why will a reaction that forms a very weak electrolyte not form an equilibrium reaction? Your preface is questionable. Do you have an example of one? All the weak electrolytes I can think of form in solution an equilibrium reaction. No the question did not
  22. English

    Can you please check of these sentences are possible? Thank you. 1) You limited yourself to include (including?) the various themes without linking them in a coherent paragraph. 2) In your paragraph you didn't change any single word from the notes I gave
  23. math

    i am taking a job related test with many math sections. I am long out of school and need some tutorials as well as practice questions and answers. The topics are as follows: -multiplication and division of fractions and mixed numbers -calculating
  24. Law

    Which one of the following groups has the best chance of bringing a class action lawsuit? A. Everyone who developed a severe sunburn on the same day in Miami, despite using one of the leading brands of sun block. B. Elderly patients who complain of back
  25. Chemistry

    Im fed up with this assignment please help The oxide formed when selenium burns in air dissolves in water to give a solution of selenious acid, H2SeO3. The solution conducts electricity, and turns blue litmus paper red. State the evidence that supports
  26. Statistics

    Let p1 represent the population proportion of U.S. Senate and Congress (House of Representatives) democrats who are in favor of a new modest tax on "junk food". Let p2 represent the population proportion of U.S. Senate and Congress (House of
  27. math

    I have to find an exact solutions on the interval [0,pi) for both of these problems-- 1) 2sin2x = sqrtx and 2) 1-2sqrt2 sinxcosx = 0 I know this much: 1) sin2x = (sqrt x)/2 = 2sinxcosx = (sqrt x)/2 What do I need to do next? 2) 1/(2 sqrt2) = sinxcosx =
  28. Math

    Hi I need a little help with a couple math questions I believe I have the answers, if someone can please just check them thank you. 1. The table shows the number of miles driven over time. Time 4|6|8|10 Miles 204|306|408|510 Express the relationship
  29. 11th grade english

    Hello! I was hoping someone could look over my answers? It's very much appreciated! :) How is the bracketed noun clause used? Subject, Direct object, Predicate noun, or Object of preposition. 1. I am optimistic enough to believe [that young people will
  30. English

    3. What is the simple subject of the following sentence? Then, glancing upward at Lady Weathers's face, he saw a look of consternation. A. he B. Lady Weathers's C. consternation D. face I picked a, because he is the subject, saw is the verb and Lady
  31. physics

    In which of these cases is a youngster doing work in the school gymnasium? 1. climbing up a rope 2. hanging motionless from a chinning bar. 3. lifting a set of weights from the floor to overhead WHICH ONE & WHY? A BRIEF EXPLANATION WOULD BE NICE. thank you
  32. Algebra

    I have a few questions that I am not too sure about, could you please check them. Thanks! 1. Find the union {2,3} U {2,4,8} This is what I got : {2,4,8,3} 2. State the name of the property illustrated: (6+3) +(1+16)=(1+16)+(6+3) I got commutative property
  33. chem -repost for bobpursley

    i don't know how to solve this. looked through all my notes but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand the theory behind this: "calculate the work need to make room for the products in the
  34. Literature

    'Poetry is first of all about feelings. Make a list of all the feelings you can think of and choose five that can be the starting points for a poem. Try making up five similes that compare the feeling to an object, an animal, or a person.' Here are the
  35. Statistics

    Recall that very satisfied customers give the XYZ- Box video game system a rating that is at least 42. Suppose that the manufacturer of the XYZ- Box wishes to use the random sample of 65 satisfaction ratings to provide evidence supporting the claim that
  36. government please read

    I have to write an essay on the question: What are the advantages and disadvantages of the influence of interest groups. Do they have too much influence? Should there be more regulation of their activities? My question is, my textbook lists the advantages
  37. Math

    Hi! I'm working on a math assignment and I was wondering if someone could check my math on this. PLZ! Create a model of Tank B. Find the approximate capacity Assuming that the overflow pipe is 100cm below the top of the tank, therefore the revised overflow
  38. Analytical Chem

    The following electrochemical cell can be used to calculate the formation constant Kf for a metal and EDTA. The cell has a voltage of -0.262V. The right half cell contains a metal (M^2+) with a standard reduction potential of -0.236V. Calculate the Kf for
  39. Math

    I'm having trouble with a math problem, it says: A quantity of gas has a volume of 0.20 cubic meter and an absolute temperature of 333 degrees kelvin. When the temperature of the gas is raised to 533 degress kelvin, what is the new volume of the gas? Thank
  40. algebra 1

    A survey was taken of students in math classes to find out how many hours per day students spend on social media. The survey results for the first-, second-, and third-period classes are as follows: First period: 2, 4, 3, 1, 0, 2, 1, 3, 1, 4, 9, 2, 4, 3, 0
  41. Algebra 1

    A survey was taken of students in math classes to find out how many hours per day students spend on social media. The survey results for the first-, second-, and third-period classes are as follows: First period: 2, 4, 3, 1, 0, 2, 1, 3, 1, 4, 9, 2, 4, 3, 0
  42. English

    Q: What can you do for the school? 1. I can clean the floor of my classroom. 2. I can clean the floor of the hallway of my classroom. 3. I can clean the stairs with a mop. 4. I can pick up trash on the flower pots and on the playing field. 5. I can win
  43. Language Arts

    In "Dust of Snow," the speaker says that something "Has given my heart / A change of mood." What has caused this change of mood? A: Seeing a crow perched in a tree. B: Taking a walk in the woods. C: Thinking about his day.** D: Having snow shaken on him.
  44. English

    Can someone please proofread this paragraph for me. There are at least there traits of a self confident person such as. Determined independent and sociable. First of all a self confident person always believes himself and his abilities he often try and try
  45. business Maths

    The main concept to investing is diversify your investments. The old saying of “don’t put all of your eggs in one basket” exemplifies this concept. Kerry Stutsman has saved $2,400 and is wondering how to invest it. She was researching different
  46. Managerial Economics/Math

    I wanted to post this as a new question to make sure you saw it. Thanks! :) Posted by klynn on Wednesday, October 3, 2007 at 11:29am. This is an MBA-level Managerial Economics Course. I'm working on some HW and just want to double-check my answers. 1.
  47. finance

    Which of the following statements is CORRECT? (Points: 4) Junk bonds typically provide a lower yield to maturity than investment grade bonds. A debenture is a secured bond that is backed by some or all of the firm's fixed assets. Subordinated debt has less
  48. Algebra

    I am thinking of two numbers. The first number added to the second number is 5. Twice the first number added to twice the second number is 10. What are the numbers. ????? 1&4
  49. maths linear eqautions

    i have a number of sweets in a bag. if i removed three of them and divided the number remaining by 4, i would have two fewer than if i removed 7 and divided the number remaining by 3. How many sweets do i have (N-3)/4 = (N-7)/3 +2 check my thinking. I see
  50. Reading Comprehension

    "The steady wash of the waves, the bobbing and swaying of the ship, the creak and groan of timbers, all told me the Seahawk was plowing toward home...Nervously,I glanced over my shoulder through the steerage cabin...I had neglected to consider something
  51. International Trade

    Krugman and Obstfeld make sure to challenge three commonly held “misconceptions about comparative advantage”. They make their arguments intuitively and with little discussion of relative prices. Expand on the challenge to these three “myths”. Use
  52. Math

    True or false and if false write a true statement 1. A right triangle has three right angles. 2. A triangle that has three sides of the same length is an equilateral triangle. 3. An obtuse triangle has two angles that are acute. 4. In a right triangle the

    And if a length of a rectangle is 3 more than twice the width and the are is 90 cm squared than what are the dimensions of the rectangle? The width of the rectangle is 43.5 and the length of the rectangle is 87. All together when you add it up it will make
  54. algebra

    A square plot of land has a building 60ft long and 40ft wide at one corner. The rest of the land outside the building forms a parking lot. If the parking lot has area 12,000ft^2, what are the dimensions of the entire plot of land? The answer is 120ft by
  55. Math

    Denzal's first 3 scores in math were 90,100,90. a.what must Denzal score on his fourth test to keep his mean score at 90 or higher? b.what must Denzal score on his fourth test to keep his median test score at 90 or higher?
  56. equation complex number

    z^4 + 81 = 0 (solve) change it to polar, then take the root. z^4= 81@180 z= 3@180/4 + n90 where n=0, 1, 2, 3 check: z= 3@180/4 + 3*90=3@315 z^4=81@(4*315)=81@1260= 91@180=-81 you can check it at the other roots also. this is what i did: z^4 = - 81 z (81
  57. math

    Math :The following table gives the free throws attempted? The following table gives the free throws attempted (FTA) and the free throws made (FTM) for the top five players in the NBA for a recent season. Calculate the free throw percentage for each player
  58. business and society

    As a business owner, information can be one of your key assets. why must you,as a business owner manage information as a resource? How might the internet and related communication technology change your business? What are some of the ways that information
  59. Hypothesis Testing - maths

    Data were collected on the differences in weight gains of 12 people one month after they stopped smoking, compared with their weight at the time when they stopped smoking. The data are given in Table 2. A positive quantity corresponds to a gain in weight,
  60. math

    Paul was able to jump rope 35 more times than Daniella. If Paul jumped 123 times, how many times did Daniella jump rope? My sol: Let x = # times Daniella jump rope. Then Paul is: x+35 Sol: (x+35)+ x = 123 (?) It doesn't seem quite right. I love math, but
  61. Math Probability question

    A jar contains four marbles, each a different color: red, blue, green and yellow. If you draw two marbles from the jar, one after another, replacing the first before drawing the second, what is the probability of getting a. two red marbles b. a red marble
  62. Nutrition (Blood Tests)

    If there was an eight year old boy who wasn't get enough to eat and was not eating nutritious foods, what kinds of things would be wrong with him? What things would be wrong in his blood tests? This is what I'm thinking: - prolonged hunger - depression:
  63. Chemistry

    Shown below is a rough sketch of the unary phase diagram (pressure vs. temperature) for carbon dioxide , dry ice. Note the diagram is not drawn to scale and contains breaks in the axes to signify this. Using the diagram, answer the following questions: (a)
  64. Physics - Projectile Motion

    "A person fires a bullet horizontally from a gun at the same instant that another bullet is dropped from the same height as the rifle barrel. Discuss which bullet will hit the ground first." I'm thinking that the bullet that is dropped will hit first,
  65. Environmental Science

    are these correct? 29. A common feature of thermal pollution and artificial eutrophication is that they both a. ave sources that are idfficult to identify and control b. cause large mats of algae to bloom in fresh water c. are a result of power plants and
  66. English

    From which statement in The Governess could you conclude that mistress is self important? A. I didn't bother making a note of it because I always do it*** B. Maybe you heard forty when I said thirty C. I excelled in mathematics. He gets that from his
  67. Chemistry

    The experimentally determined rate law for the reaction H2 + NO --> ½N2 + H2O is Rate = k[H2][NO]2. Is the mechanism below possible? Step 1: H2 + NO --> N + H2O Slow Step 2: N + NO -->N2 + O Fast Step 3: O + H2 --> H2O Fast 1. Yes, because the slow step
  68. Physics

    I agree with this and see were it comes from net force = (delta p)/t so momentum is conserved when net force equals zero... net force = (delta p)/t 0 = (delta p)/t however the following is not true 0 = (delta p)/t = P - Po were p is momentum and Po is used
  69. Communication Skills

    I have this text and i don't understand the question that's below it (English is not my first language... and im not looking for answer its just i'd like to understand the question so i can come up with answer myself) Charlotte is a 43 year old mother of
  70. Mathamatics

    I need help figuring out these two math word porblem: 1) A sales tax of 6% of the cost of a car was added to the purchase price of $29,500. a. how much was the sales tax? b. What is the total cost of the car, including sales tax? 2) During the packaging
  71. Please i needd an answer asap!!!

    I give medals and 'best answer' :) I need help asap! Which of the following is one way to assess whether or not a learning game is effective? a. Being able to win the game b. doing a quiz before and after the game to see what you have learned c. Making it
  72. math

    Hi, I was working on my math homework and I was stumbling on these problems. I tried looking at the solutions but my answers were completely off. Here are the ones I'm stuck on: If vectors O(0,0,0), A(6,0,0), B(6,-sqrt(24), sqrt(12)), and C(0,-sqrt(24),
  73. 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
  74. Physics

    A 1.1 kg particle-like object moves in a plane with velocity components Vx = 30 m/s and Vy = 90 m/s as it passes through the point with (x, y) coordinates of (3.0, -4.0) m. (a) What is its angular momentum relative to the origin at this moment? _____
  75. AP CHEM-- check work?

    How many moles of ATP must be converted to ADP by the reaction ATP(aq) + H2O ---> ADP(aq) + HPO4-2(aq) + 2H+(aq) delta-G*= -31 kJ to bring about a nonspontaneous biochemical reaction in which delta-G*= +372 kJ? I did my work out like this..: 372 kJ x 1
  76. Science

    According to the continental drift theory, which of the following land regions should show the greatest similarities in fossil types? (1 point) A) east coast of South America and west coast of Africa B) east coast of South and west coast of South America
  77. Economics

    Now lets consider a different type of government bond, a ten-year inflation indexed bond. Payments on this bond are adjusted for inflation based on the CPI. If inflation rises by five percent, interest payments on this bond will rise by five percent.
  78. Physics

    An object m is released from the top of an inclined, frictionless plane that is inclined at angle theta with the horizontal. The top of the ramp has height h. Which of the following would change the acceleration of the object if it were released from the
  79. Grammar

    Can someone please check if my answers are correct? Identify the verb form that correctly completes each sentence: 1.At the stroke of midnight, the fireworks ________ into the night sky. A.burst B.bursts C.bursted D.bursting A 2.Jermaine, seeing the shower
  80. Chemistry(Please check)

    For an experiment we had to test the equilibrium of BiCl3 - BiOCl First I had to mix a small amount of BiCl3 with 2mL of water. After doing this the color was cloudy white. Then I added6.0M of HCl drop-wise in which the color became clear. Then 25mL was
  81. ENGLISH Literature

    In "The Open Window" What does "Romance at short notice was her speciality" means? Does it means that romance was all she had to live by. She had no other interest? Thanks Much!!!! Thank you for using the Jiskha Homework Help Forum. Could it mean she fell
  82. Help please? Math 141 (Pre-Cal) (Shapes)

    Hi everyone I am lost on how to do this math problem: A. You have 180 feet of fencing with which to construct a rectangular pen. What is the maximum area you can enclose? B. Going back to part A, you decide to build your rectangular pen next to a large
  83. Rounding and estimating

    estimate.State your standard(rounding,front-end, or clustering.) 91.7 + 88.6 + 89.1 + 92.52 + 90.6 3.9 + 8.1 + 2.06 Please and Thank-You Standard = what process you always use. For example, if you always round up for 6 or .6, etc., then that's your
  84. Statistics

    Can someone please help with this problem to advise how to set up and in the book Essential of Statistics for the Behavioral Sciences. A researcher is investigating the effectiveness of a new study-skills training program for elementary school children. A
  85. Math

    hi i need help for a math question. The question is about geometric sequence, it asking about " in 2004, the turbines generated 326 MW of wind energy, and it is projected that the amount will be 10,000 MW per year by 2010. If this growth were modeled by
  86. math

    hi i need help for a math question. The question is about geometric sequence, it asking about " in 2004, the turbines generated 326 MW of wind energy, and it is projected that the amount will be 10,000 MW per year by 2010. If this growth were modeled by
  87. about Engineering

    Electronic and Communication Engineering is mainly Mathematical analysis, implemented in practical circuits. You have to understand higher forms of math, and think in those terms. You have to understand the imperfect models used for systems analysis. You
  88. Math 7 - NYS Math Exam Review - Book 1 (HW)

    C = 2nr!?!??!??! Since the NYS Math Exam is coming up (in my district in my school we have it next week). You see in my class were not done with our geometry and ratio, proportion unit and plus we are missing one unit: algebra. We didn't get to solving the
  89. com155

    Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence. Mark each verb used in bold and, in parentheses, identify the specific tense used. THIS IS WHAT I WROTE:
  90. math

    2/3 of the students watched tv. Of those students 3/4 watched a reality show. Of the students that watched the show 1/4 of them recorded the show. What fraction of the students watched and recorded a reality tv show? not sure what to do, thinking we need
  91. College Algebre

    Here is the math problem: The height of an object in free fall, or otherwise thrown into the air near the earth's surface, with initial vertical velocity v0 in feet per seconds, and from the initial height h0 in feet, at any given time t in seconds is
  92. English

    I really need you to check my rephrase of "Macbeth". I also included a sentence from a letter. Thank you very much. 1) If you need further information about the school, you can either contact me or go on the school's internet webpage ...... 2) Lady Macbeth
  93. math - 6th grade

    how do you do front end estimation when the number of digits are 12,249 - 6,875 dgud wat are the poperties of math and what do they all mean????????? i need help in my homework I haven't used the expression "front end" estimation but I
  94. math

    How is an inequality different from an equation? Give a real-world scenario in which you would write an inequality rather than an equation. (Below is my real-world scenario, please check!) George has some money in his wallet. He's thinking of buying pizza,
  95. Science/Math

    Math Problem page 18 Wendell invests $10,000 in a stock portfolio made up of Petroleum Special at $30 per share, Newshoe at $12 per share, and Beans and Sprouts at $2.50 per share. He places 60 percent of the money in P.S. (Petroleum Special), 30 percent
  96. stastics

    A recent article in a computer magazine suggested that the mean time to fully learn a new software program is 40 hours. A sample of 100 first-time users of a new statistics program revealed the mean time to learn it was 39 hours with the standard deviation
  97. Statistics

    Which of the following statements are true about matched pairs analysis? I. In a matched pair analysis you use a single-sample procedure. The sample is made up of the difference between pairs of observations. II. In a matched pairs analysis the two
  98. Math

    I still do not understand fractions?????? 2/3 + 1/3 + 5/6 = divide all of them first then add them up ???. I am still lost, can someone please help me. Ok. In your earlier question, there was talk of the LCM, the least common multiple. Whenever you add
  99. Physics

    1. Question: Consider two planets with uniform mass distributions. The mass density and the radius of planet 1 are p1 and R1, respectively, and those of planet 2 are p2 and R2. What is the ratio of their masses? Ans: M1/M2 = (p1/p2)(R1/R2)^3...I got this
  100. Chemistry

    A XX-g sample of methane, CH4, is mixed with YY atm of O2 (an excess) in a VV L combustion chamber at 125.0°C. The combustion reaction to CO2 and H2O is initiated and the vessel is cooled back to 125.0°C. What is the final pressure in the combustion