Critical Thinking/Math

145,931 results, page 20

  1. Physics

    Do Newton's Law apply to motion inside your car? A.Yes, but only when at rest. B.Yes, but only when traveling at constant velocity or at rest. C.No, never. D.Yes, always. So I tried answering the question with D at first because I was thinking that it is a car in motion so ...
  2. english

    The subject of this unit is the role of those mythologies which determine the meaning of being male or female in American culture. As always, your aim as a writer is to incorporate what the critics have been arguing into your own thinking, thereby to enter into a discussion ...
  3. Please check my Calculus

    1. Find all points of inflection: f(x)=1/12x^4-2x^2+15 A. (2, 0) B. (2, 0), (-2, 0) C. (0, 15) D. (2, 25/3), (-2, 25/3) E. none of these I got D. I found the second derivative and equaled it to 0 and solved for x. I plugged the x values in to get my points. 2. Find the ...
  4. critical probability

    in how many ways can be the first four letters of your name be arranged to form a three letter word, (i)when the letter can be repeated (ii)when the letter can not be repeated
  5. calculus help please

    Consider the function f(x)=2x+9x^–1.? For this function there are four important intervals: (-inf,–A], [A,B),(B,C), and [C,inf) where A, and C are the critical numbers and the function is not defined at B. Find A= ????? and B= 0 and C =?????
  6. calculus

    g(x)=(x^3)-(3x^2)+17 a)find and classify all critical points of g(x) using exact with x and y values. b)for what values of x is the function concave down; again exact x and y values.
  7. calculus

    A polynomial function p(x) has a relative maximum at (3, -4) a relative minimum at (-1, -6), a relative maximum at (-5, 2) and no other critical points. How many zeros does p(x) have?
  8. 6th grade math

    Can you check the following problems? Tell if the problem can be solved by using GCF or LCM and then solve. 1. Joanne is campaigning for class president and plans to distribute 20 flyers and 16 buttons. She wants each classroom to receive an identical set of campaign materials...
  9. math

    At 1:00 p.m., a car leaves a city and travels north at a rate of 55 mi/h. An hour later, a second car leaves the city and travels south at a rate of 60 mi/hr. At what time will the two cars be 285 miles apart We will be happy to critique your work or thinking.
  10. Math

    Solve the following system of equations by graphing. If the system is inconsistent or the equations are dependent, say so 5x-2y=3 10x-4y=6 I know the equations are dependent but I am confused on what is the solution set I'm thinking its (10x-4y=6) but I'm really not sure.
  11. math

    Tyler is thinking of a number that is divisible by 2 and 3. By which of the following numbers must Tyler's number also be divisible? 6? 8? 9? 12?
  12. english

    I have to edit the following sentences to untangle mixed constructions. Here is the list of five and my corrections below them. 1. Early diagnosis of prostate cancer is often curable. 2. Depending on our method of travel and our destination determines how many suitcases we are...
  13. 5th grade math

    Ms sue I'm sorry I'm totally confused its says round to the nearest tenth in a square kilometer How can I round 297.85 km to the nearest tenth? Her answer was 297.85 but I'm thinking it should have been 300.00 kilometer because the yes place is 5 or more
  14. 3rd Grade Math

    I thought the simple answer would be 150-70=80 too but, the problem states that she has 70 more nickles than dimes. So, I was thinking that the answer would be 40 dimes and 110 nickles-which adds up to 150 and 110 is 70 more than 40 but, I don't know how to explain this to my ...
  15. Math

    You have a $200,000 mortgage. You have had the house for one year. The rate is 7.5% fixed for 30 years. Rates have come down and you are thinking of refinancing at the new rate of 6%. 1) What is your mortgage payment and interest on your current mortgage? 2) What would your ...
  16. chem

    Consider the equation A <-> in a 1L container. At 7.57C, the molar concentrations of A and B are 7.228M and 1.976 (respectively). Suddenly, 1.831 moles of A are added to the system. What is the change in deltaG of the system (Answer in kJ) At first, I thought I would use...
  17. Calculus

    assume that f(x)= x^3(x-2)^2 a) find the x-intercepts algebraically b) find all the critical points c) use the first derivative test to determine local minimums and maximums d)find all inflection points e)state the concavity of the graph on appropriate intervals
  18. Differential Equations

    The boundary value problem Ty"+ ρ(ω^2)y' = 0 , y(0) = 0, y(L) = 0 is the model of the shape Of a rotating string. Suppose T and ρ are constants. Find the critical angular speed ω = ωn for which there is non-trivial solutions.
  19. HELP MATH

    Thank you for taking the time to respond. I am in the 5th grade. However word problems are a problem. On my homework sheet it says, Strategies Used.... Visual Thinking... My soloution First I... Then I... Next I... After that I... Finally I... My answer is... I think my answer...
  20. Algebra 2

    e^(x-2)-12^(2x+3)=0 Class is a college level math prep. Sorry for previous post being incomplete. I'm thinking: ln^(x-2)=ln12^(2x+3) (x-2)ln=(2x+3)ln12 xln-2ln=2xln(12)+3ln(12) xln-2xln(12)= 2ln+3ln(12) and not sure
  21. statistics

    (a)Comparison of GPA for randomly chosen college juniors and seniors: xbar= 3.05, s1 = .20, n1 = 15, xbar2= 3.25, s2 = .30, n2 = 15, á = .025, left-tailed test. calculate d.f. ____________ Standard error ____________ t-calculated ____________ p-value ____________ t-critical ...
  22. biology

    The blastopore is a structure that first becomes evident during a. the eight-cell stage of the embryo. b. coelom formation. c. fertilization. d. cleavage. e. gastrulation. I think that it is (e). But I am kinda thinking that it could be (d) too. PLEASE HELP!
  23. To Heather: Ethics

    I removed your post because you refer to materials that are not available to the Jiskha tutors. We have NO connection with Axia College! You've also not given us any indication of your thinking about this assignment.
  24. CRT 205

    100 words per question in the future, how will thinking critically influence the ways that you read? Write?, Process Information?
  25. @ Steve or Damon

    take a look at this question http://www.jiskha.com/display.cgi?id=1446147947 Am I guilty of overkill or over-thinking this ? Surely there has to be an easier way.
  26. marketing

    discuss how you might use the new product development process if you were thinking about offering some kind of seummer service to residents in a beach resort town
  27. Anatomy & Physiology

    A problem with the _____ plexus may cause pain in the posterior part of the thigh. A) Sacral B) Lumbar C) Cervical D) Brachial I'm thinking A but not quite sure
  28. Written Analysis

    My bad..I just posted a help question. I stated it incorrectly. Analyze your own experience with faulty thinking in a minimum of three well developed paragraphs. Thank you
  29. english

    Hi I have to compare Mending Wall by Robert Frost to modern day time. I was thinking about comparing it to a song or movie, but I'm not sure of any. Do you have any ideas?
  30. history

    What place did the Israeli Olympic Team visit in the days prior to the hostage taking? I'm thinking it was a memorial of a concentration camp. I'm not too sure.
  31. Functions & Trig

    evaluate each function at the given value: f(n)=-n^6+31n^4+26n^3+20n^2+-33n-20 when n=6 I was thinking that I should do synthetic division, but I've tried it a few times and I can't get it to work out correctly. Please help!
  32. English

    4. Which one of these sentences contains a prepositional phrase? A. Trolls live under bridges; elves do not. B. Where did you find the papers that I lost? C. You may think otherwise, but what I tell you is true. D. To be, or not to be: that is the question. I'm thinking A?
  33. Functions & Trig

    evaluate each function at the given value: f(n)=-n^6+31n^4+26n^3+20n^2+-33n-20 when n=6 I was thinking that I should do synthetic division, but I've tried it a few times and I can't get it to work out correctly. Please help!
  34. Chemistry

    I am not sure if I have the right answer or not to the following question. One mole of NO2 would be produced from how many moles of molecular nitrogen> According the equation N2 + 202 > 2NO2. I was thinking maybe 2. Does anyone know if I am right or wrong. Thanks
  35. philosophy

    I am to write a two page dialogue between Socrates and a person. I was thinking about writing about domestic violence. What do you think about that subject. Should I use statistics and numbers regarding this issue.
  36. criyal thinking

    What are some racial imbalances in education, the economy, family life, housing, criminal justice, health care, and politics.
  37. business math

    Mortgage lenders base the mortgage interest rate they offer you on your credit rating. This makes it financially critical to maintain a credit score of 700 or higher. How much more interest would you pay on a $195,000 home if you put 20% down and financed the remaining with a ...
  38. English

    I have a few more sentences on Dorian's death I'd like you to check. Thank you. 1)Dorian throws himself on the sofa and starts thinking of his past. He recognizes he has filled his mind with corruption, committed horrible crimes and has exerted an evil influence on others. 2) ...
  39. Phil

    Identify the premise/s and the conclusion and label them. Complete the argument if necessary. 1.My bowl fell off of the counter and broke. If your bowl falls off of the counter, it will break. 2.You shouldn’t be so critical of War and Peace. You’ve never read it. 3.Fluffy ...
  40. soil!

    In what ways is soil pH and light the two critical factors for plant growth in the Boreal Forest? Please only post your question once. Double posting sidetracks tutors and wastes time that could be better spent on other posts. See my response to your other post. I hope this ...
  41. Language Arts (The Giver)

    Which of the following messages does the author most likely want you to take away from the reading this novel?(1 point) - Personal choice is critical to society. - Rules are made to be broken. - There is no place for memories in modern society. -Success for all depends on ...
  42. Math for Educators

    I am thinking of some #s less than 100. When I divide them by 2 there is a remainder of 1. When I divide them by 3 there is a remainder of 1. When I divide it by 4 there is a remainder of 1. However, when I divide by 5 there is no remainder. what are the #'s? - my answer so ...
  43. economics

    what are the arguments of high income, middle income, low income and corporate tax payers who are critical o the Canadian government's income tax policy.
  44. Calculus

    Find the intervals on which the given function is increasing and decreasing. y=-x^2-2x y'=-2x-2 critical point x=-1 Increasing [-infinity,-1) Decreasing (-1,infinity] is this the correct way of writting this wiht the brackets
  45. Vapor pressure of liquids

    benzaldehyde has a normal boiling point of 179 C and a critical point at 422C and 45.9 atm. estimate its vapor pressure at 139C.
  46. Statistics

    A friend gives you the following Fs and decision made. Does the decision appear to be correct? Explain.Do NOT provide critical or table values as explanations. F(2, 63) = .10, not significant F(3, 85) = -1.70, not significant F(1, 120) = 64.32, not significant F(5, 70) = 1.00...
  47. chemistry

    In precipitating magnesium ammonium phosphate, why can't NH4Cl be used as a substitute for NH3? Isn't pH critical? The solubility is vastly different at pH 9 versus pH 4. In addition, how do you obtain NH3 from NH4Cl? The NH3 is for pH adjustment as Bob Pursley writes.
  48. physics

    Hi! could anyone please help me with this problem. Thank you so much. Q: The critical angle for total internal reflection for ice surrounded by air is 49.8°. Calculate the Brewster angle for ice if the light is incident from the air.
  49. Calc

    h''(x)=(x-1)(x+1)^2(x+2) asks what values of x does h''(x) concaves up or down for. I made a sign chart and got the critical numbers -1, 1, and 2, with the signs (in order of the c.n.s) being +,-,-, and +. Based off of the signs, does h''(x) concave down on (-1,1) and 1,2) and...
  50. Project Mangament

    It would seem that if you shorten the critical path, you need to spend MORE money (overtime, extra labor, express shipping, etc.), not less. So how could it save money and shorten the duration of a project?
  51. Physics

    What is the critical angles for water ice when surrounded by air? theda critial = arcsin(n2/n1) =arcsin(1/n1) What is the index of refraction of water ice? also is the above equation correct?
  52. Us history

    Based on the above stages, discuss what fredrick jackson turner asserted about each group's importance and relevance to the moving frontier including what their critical contributions were, or lack there of ,to the development of the american civilization. above stages include...
  53. English

    Help:Please change show me anthing that I need to do, by placing the correct form at the it the bottom of the essay. Topic: What is your biggest regret in life? My Biggest Regret Everyone has had some regrets about something in life. Some of the regrets could have been about a...
  54. physical chemistry

    how can i get the critical temperature of CO2 given a set of data which consists of surface tension and density at different temperatures. The table looks like this: T(oC) density surface tension 0 0.927 4.50 20 0.772 1.16 I really need some help about this...please...
  55. Calc

    I have to find the relative minimum and relative maximum of g'(x)=(x+1)(x-1)^2(x-2). What I've done so far is constructed a sign chart using the critical numbers, but I'm confused. To the left of -1 it's +, to the right of -1 it's -, to the left of 1 it's -(from -1) and also...
  56. Physics

    What is the critical angle (in degrees) for a ray of light coming from a medium with an index of refraction of 1.4 to a medium with an index of refraction of 1.2? label the unit.
  57. Physics

    The velocity of sound in air is about 330m/s, and in water is about 1700m/s. Calculate the critical angle for sound leaving air and entering water.
  58. Math

    Which of the following is true if a pentagon tessellates a plane? a. A pentagon never tessellates a plane b. All of its sides must be the same length c. It must be a regular pentagon d. It has one pair of parallel sides I was thinking its (c) but not sure.
  59. critical thinking

    The amount of water needed daily by plants for photosynthesis, cell growth, and cell maintenance is very small, and yet plants require large volumes of water in order to live. It is estimated that over 90 percent of the water absorbed by plants is lost into the air. Most of ...
  60. HVAC

    the density of a solid or liquid material divided by the density of water is called the_____ of the material. latent heat specific volume critical point specific gravity
  61. Statistics

    A population =100 and sd=25. A sample (n=150) has X=102. Using 2 tails of the sampling distribution and the .05 criterion. What is the critical value? Is the sample in the region of rejection? What does this indicate about the likelihood of this sample occurring in this ...
  62. hypothesis test

    I am confused on what statistic test I should perform. I think it should be the t-test, which I have provided below. If the t-test is correct, how do I decide if I need to reject the null hypothesis. I get really confused on these things. Null Hypothesis: The State of South ...
  63. calc

    Find the critical number(s) of f(x)= abs(2x-4) What is the derivative of abs(2x-4)? Is it abs(2)? No. You have to specify the domain of x. At x=2, this function has no derivative. At x>2, f' = d (2x -4)/dx= 2 at x <2, f'= d(4-2x)/dx= -2 You have to watch for ...
  64. Calculus 1

    Find the critical numbers of the function. (Enter your answers as a comma-separated list. Use n to denote any arbitrary integer values. If an answer does not exist, enter DNE.) f(θ) = 4 cos θ + 2 sin^2 θ
  65. Science/chemistry

    Could you please check these answers I don't understand #4 could you give me a link or you can try to help me. Thanks: 1. Identify what all organic compounds have in common, and list the four principal classes of organic compounds. Answer: Cabohydrates, lipids, proteins, and ...
  66. Language Arts (HELP MEE!!)

    which of the following elements should be included in your critical review? A narrative with plot line A main claim about two or more works•• Graphics such as chart and tables Third person point of view An analysis of literary elements such as characters, plot or theme••
  67. Math Word Problem

    Need a formula for this math problem. Help!? Relinda owns a tea shop and is creating a new mix of tea for her customers. She is using a standard black tea that sells for $7 per pound and a special orange flavor that sells for $11 per pound. She is planning to make a 40 pound ...
  68. Social Studies Help NEede!

    Was Christopher Columbus a hero or a villian? [I suggest thinking and going online to find sources that will tell you more about the ambitious leader! You'll be surprised!]
  69. Business

    I am a beginning web designer and I was wondering how I can build my portfolio. I was thinking about calling different places like car repair etc and if they don't have a site I'll do it for free. But how would I do that, what do I say?
  70. world Geo

    What part of a map tells the relationship of distanceon the Earth? I'm thinking the answer is the scale,some of the scales shows miles and killometers... I think i am right but I'm not sure of it.
  71. Composition 101 - Argosy U -

    I am thinking about doing a paper regarding religion/vs./spiritual I want to make a point about How To Be Approached when someone ask me "Why am I a ......, surely it doesn't take all that." (Might even be my title (smile). Can you help me - or am I on the right track. Thank ...
  72. Science

    What are byproducts of zinc and silver mining? Are they toxic enough to pollute water in large quantities? Thank you for thinking about this. I had a difficult time finding this on the internet.
  73. Marketing

    Explain in detail how you would use the new-product development process if you were thinking about offering some kind of summer service to residents in a beach resort town.
  74. Sociology

    Marxism is a theory of history and social change that expresses which of the following as its central concern? A) Violence B) Feudalism C) Inequality D) Mass consumerism I'm thinking B but I'm not really sure.
  75. Business

    I have a multiple choice question I don't know how to do, please help. I was thinking d). Structural resources of a frim include a) customer relationships b) databases c) organizational procedures d) All of the above e) None of the above
  76. ENGL

    How can i paraphrase the following sentence? He describes the eight different ways of intelligence, each one having its own ¡§unique characteristics, tools, and processes that represent a different way of thinking, solving problems, and learning¡¨.
  77. law

    hi, im having trouble thinking of my own laws. can someone help me out. thank you very much. Some examples: Cell ban in cars, raising lowering an age limit (driving, voting retirement etc.)
  78. English

    How do euphemisms, cliché’s, proverbs and ready phrases influence the way you write and speak? Don't provide me an answer rather put me on the right track of thinking. Please and Thank you!
  79. Curriculum

    When are children who live with overly critical or controlling adults particularly vulnerable? A. During years two and three, when they're exercising increased autonomy B. During elementary school, when involved in real task completion C. During preadolescence, when they have ...
  80. Psychology

    Andy, a high school sophomore, lacks self-discipline, fails to plan ahead, and is excessively anxious. He is quickly frustrated by challenging tasks and frequently becomes overly critical of others. Use the psychoanalytic, humanistic, and socialcognitive perspectives to give ...
  81. The Curriculum

    When are children who live with overly critical or controlling adults particularly vulnerable? A. During years two and three, when they're exercising increased autonomy B. During elementary school, when involved in real task completion C. During preadolescence, when they have ...
  82. The Curriculum

    When are children who live with overly critical or controlling adults particularly vulnerable? A. During years two and three, when they're exercising increased autonomy B. During elementary school, when involved in real task completion C. During preadolescence, when they have ...
  83. Psychology

    Andy, a high school sophomore, lacks self-discipline, fails to plan ahead, and is excessively anxious. He is quickly frustrated by challenging tasks and frequently becomes overly critical of others. Use the psychoanalytic and social-cognitive perspectives to give two ...
  84. Statistics

    In a particular chi-square goodness-of-fit test there are four categories and 200 observations. The significiance level is 0.05. How many degrees of freedom are there? What is the critical value of chi-square? compute the value of chi-square?
  85. math 2 questions plz help asap

    1) Mr. customs is correcting the class's math homework on customary units. which of the following measurements is reasonable? A. a pencil is 12 feet long B. the back porch is 12 inches wide C. the 3rd hole on the golf court is 123 miles long D. the distance from new York to ...
  86. English

    Why does Douglass state that “education and slavery were incompatible with each other”? There wasn’t time for slaves to go to school; they had too much work to do Being educated meant that slaves might question their existence and try to escape Slaves do not need an ...
  87. physics

    total internal reflection between two materials is seen to occur if a critical angle of 60 degrees is exceeded. if the index of refraction of the material that the light is entering is 1.98,find the inndex of refraction of the material in which the light is originating.
  88. Physics

    Two transparent media F and G are separated by a plane boundary. The speed of light in medium F is 2.0x108 m/sec and in medium G is 2.5x108 m/sec. The critical angle for which a ray of light from F to G is totally internally reflected is
  89. Econ check my work

    Consider the following data: 23 17 20 29 21 14 19 24 Develop and test a hypothesis to determine if the variance is greater than 4. Use the critical value approach and α = 0.05. So I did my work and the variance I calculated is 18.3593 which is greater than 4. The issue is I ...
  90. Statistics

    "Suppose two independent samples have been collected.Based on a sample of 26 from the first population, you observe 14 successes. The second sample of size 26 had 17 successes. What is the critical value for a 85% confidence interval that compares these two population ...
  91. law

    What do you think are the top three critical issues in contemporary law enforcement? What kind of controversy has each of these issues generated? Do you think the controversy is justified? Why?
  92. Calc

    Let f(x) = x^2 -2x a) Estimate f'(3) using h = 0.03 b) Find the exact value for f'(3) c) Give the equation of the tangent line to f(x) at x=3 d) Use the tangent line to estimate f(2.98) e) Critical points
  93. english

    the assignment is to write a paragraph explaining the key differences between the four types of writing. I need clarification on whether the four types of writing should be summary,analysis,synthesis,evaluation or narrative, descriptive, comparative, expository. I know the ...
  94. Math generic rectangles

    Out of all problems this one I just don't know. I started it but I'm unsure .can someone help me please. Draw a generic rectangle to find each product. Then write a multiplication sentence with parenthesis for each one. 7 (1+11) So I am thinking the multiplication part is : ...
  95. statics

    If a court acquits every defendant, they will never commit a Type I error. A) True B) False 2. The probability of rejecting a true null hypothesis increases as the sample size increases. A) True B) False 3. For a given level of significance, the critical value of Student's t ...
  96. Health care

    Please check my answer thanks :) Medicare and Medicaid financial issues put constraints on .... 1., physician services 2. critical care centers 3. public hospitals 4. outpatient services now here is the problem I think it is all of them but I can only pick one answer so I ...
  97. Physics

    A technician performs an experiment on a glass slap and finds that the critical angle for total internal reflection at the glass (refractive index n1) air (refractive index n2 = 1) interface is 43 +/- 2 deg. Find n1 and the associated error.
  98. MORE MATH

    What is the factoring by grouping? When factoring a trinomial, why is it necessary to write the trinomials in four terms? I will be happy to critique your thinking on this. I do not understand to even answer it? How do we determine the common factors in an expression? Also ...
  99. Chemistry

    Which of the following indicates the exsistence of stron intermolecular forces of attraction in a liquid? a very low boiling point a very low vapor pressure a very low critical pressure a very low viscosity a very low heat of vaporization
  100. geography

    Three critical factors which affect choice of transportation type are time, distance, and environmental impact. Create a chart to show which is the best choice in the following situations: coal being moved 2000km ; an important parcel going 700km ; cars made in Italy to sell ...
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