Posts by tim

Total # Posts: 1,526

  1. Math

    Which of the following vectors are parallel? u=2i+4j-2k, v=i-j+3k w=-i-2j+k, p=i+j+k q=4i-4j+12k, r=i-j+k
  2. Math

    The force on an object is F =?21j . For the vector v =4i ?j , find: a) The component of F parallel to v : (b) The component of F perpendicular to v : The work, W, done by force F through displacement v :
  3. Math

    Suppose A=(1,3,?6) and AB=?7,5,11?. Then B=
  4. Statistics

    Episodes of dehydration are common at outdoors music festivals. At a particular large annual event, a first aid team has recorded over the years 85 cases on average per day. In 2018, during a weekend they observe 78, 86, 79, and 81 cases. Assuming the distributions of cases is...
  5. Calculus

    Water leaks from a tank at the rate of r(t) gallons per hour. The rate decreased as time passed, and values of the rate at two-hour time intervals are shown in the table below. The total amount of water that leaked out is evaluated by a Riemann sum. Find the upper estimate (...
  6. Grade 12 Calculus

    A science project studying catapults sent a projectile into the air with an initial velocity of 24.5 m/s. The formula for distance (s) in meters with respect to time in seconds is s = -4.9t2 + 24.5t. a)Find the time that this projectile would appear to have the maximum ...
  7. Math

    In a class 1/3 are boys.If 2/5 of the boys are absent, what fraction of the boys is present?
  8. Chemistry

    A sample of oxygen, O2, occupies 32.2 mL at 30 °C and 452 torr. What volume will it occupy at –70 °C and the same pressure?
  9. Health

    9 and 10 are false
  10. Statistics

    88%
  11. Math

    Divide 33 photos into 2 groups so that the ratio is 4:7
  12. maths

    two cars start to drive around two Km trackat the same time.carX MAKES ONE lap every 80second,while CarY make one lap every 60second. How long will it take for two cars to be at their starting position again?give answer in minutes.
  13. math

    A standard deck of cards has 52 cards in it. The cards are divided into 4 suits or 13 cards each.If one draws two cards at random from the deck of cards what is the probability that they are of the same suit ?
  14. math

    How many di?erent outcomes could there be when rolling three 6 sided dice ?
  15. math

    How many di?erent outcomes could there be when rolling three 6 sided dice ?
  16. math

    A committee of 5 is chosen from 6 teachers and 3 students and 7 others. Determine the number of ways of selecting the committee if it is to contain: (a)at least two teachers (b)no teacher nor student
  17. algebra

    7 more than twice Jenny'a age. Use j to represent Jenny'a age
  18. Language Arts

    but how would i answer this im supper confused
  19. Ashford

    In hiring officials it is considered best to: A. Pay a salary plus expenses rather than a flat fee B.Have officials selected with the approval of the opponents C.Use local officials D.Have officials chosen strictly by the home team. A and C Which of the following is not ...
  20. Ashford

    In hiring officials it is considered best to: A. Pay a salary plus expenses rather than a flat fee B.Have officials selected with the approval of the opponents C.Use local officials D.Have officials chosen strictly by the home team. A and C Which of the following is not ...
  21. Language Arts 7

    whats number 5
  22. Math

    The bus fare in a city is $2.00. People who use the bus have the option of purchasing a monthly coupon book for $ 20.00. With the coupon book, the fare is reduced to $1.00. Determine the number of times in a month the bus must be used so that the total monthly cost without the...
  23. Math

    The two stadiums with the largest capacities are Marshfield Stadium and Bowden Stadium. The capacity of Marshfield Stadium exceeds that of Bowden by 7,341 people. Combined, the two stadiums have a capacity of? 210,355 people. Find the capacity of each stadium. Marshfield ...
  24. Math

    Use the percent? formula, A=PB: A is Percent of B 30% of what number of 87%. Need help.
  25. Math

    When seven times a number is decreased by 8, the result is 55. What is the number. Help me to understand.
  26. Algebra

    Please show me how this is my first time learning algebra.
  27. Algebra

    add 18 to both sides, take the square root to each side to find x. Please show me how.
  28. Algebra

    Evaluate the algebraic expression for the given value of the variable. -4,x^2-18= -10 Please check my answer
  29. Alegbra

    Evaluate the given expression for x= -9. -6x-4= I need help understanding.
  30. Alegbra

    I need help understanding this problem. ?(Simplify your answer. Type a whole? number.) 3^2 3^3=
  31. Alegbra

    Use properties of exponents to simplify the given expression. First express the answer in exponential form. Then evaluate the expression. 3^2 3^3=
  32. Math

    last week she read=1/5 this week she read=3*1/5=3/5 she has read =last week+ this week =1/5 +3/5 =4/5 left to read=5/5-4/5 =1/5
  33. Accounting

    X has recorded bad debt expense in the past at a rate of 1.5% of accounts receivable, based on an aging analysis. In 2017, X decides to increase its estimate to 2%. If the new rate had been used in prior years, cumulative bad debt expense would have been $387,800 instead of $...
  34. algebra

    Determine the length of the missing side of each right triangle. Show your work. 1)a=15; b=?; c=20 Answer is b= 5?7 2)a=9; b=12; c=? Answer is c= 15 **How do I show my work to come up with each of these two answers? THANK YOU!!
  35. algebra

    The length of a rectangle is 4 inches more than twice the width. If the area of the rectangle is 48 square inches, what is the length of the rectangle? SHOW WORK. Thank you!!
  36. 099

    2(2x-7)-16=3(-x-7)-11 After getting rid of the () 4x-14-16=-3x-21-11 Where do I go from here?
  37. 099 math

    2(2x-7)-16=3(-x-7)-11
  38. 099 math

    2(2x-7)-16=3(-x-7-11)
  39. 099 math

    -2(-x-5)+1=5
  40. English

    Identify the most effective method by which a writer can persuade a reader. A.S/he repeats the same idea over and over, using different words. B.S/he tries to use information that could frighten a reader. C.S/he supports main points with strong research. D.S/he proofreads the ...
  41. English

    To cite sources correctly in APA, a research-based paper must contain both in-text citations and a references page that contains full citations of each source mentioned in the paper. True False I say True. Please check my work.
  42. English

    Evaluate which of the following is the best example of a summary. A.In Goldilocks and the Three Bears, a character named Goldilocks sneaks into a home owned by bears. She eats a bowl of porridge and falls asleep in the house. When the bears return, Goldilocks awakens. ...
  43. English

    A typical research-based paper contains an introduction with a thesis, a body in which the paragraphs begin with topic sentences, a conclusion, and a references page. True False I say True. Please check my work.
  44. English

    In any academic writing, it is appropriate to use the word you, as in: When you read the research, you know that the death penalty does not deter crime. True False I say false. Please check my work.
  45. Physics

    A locomotive pulls 12 identical freight cars. The force between the locomotive and the first car is 150.0 kN, and the acceleration of the train is 2 m/s2. There is no friction to consider. Find the force between the eleventh and twelfth cars. (Express your answer to two ...
  46. English

    I'm trying to follow my teacher advise. Writer's must include their research to ensure there reader's understands his point. How would you write this.
  47. English

    The male writer research must ensure his reader they are understanding his point. Recheck my answer.
  48. English

    The writer research must ensure the reader is understanding his point. Please check my work or how would you rewrite.
  49. English

    Revise the following sentence to include gender neutral pronouns. Change any words necessary. A writer must include research to ensure the reader understands his point. I need help with this one.
  50. English

    It's important to evaluate information, before including it in the paper. Is this better.
  51. English

    It's important for me to evaluate information before including it in the paper. Please check my work.
  52. English

    Revise the following sentence to omit personal pronouns. I think it is important for you to evaluate information before it in a paper. It's important to evaluate information before including in your paper. Please check my work.
  53. English

    Rewrite the following sentence to make it more concise: The referendum was held by the government in the month of August. The Government held a referendum in the August. Please check my work.
  54. English

    The floodwall was utterly devastation. Please check my work.
  55. English

    Rewrite the following sentence to make it more concise: The end result of completely eliminating the floodwall was utter devastation. I need help with this one.
  56. English

    How would you rewrite the sentence.
  57. English

    Revise the sentence below to make it more formal: 'You're going to get really fat if you eat at fast foods restaurants all the time. My version: If you continue eating at fast food restaurants all the time, the possibility of becoming obese will be very high. Please ...
  58. Geometry

    What is the relative position of two lines if their orthogonal projection onto the projection planes are a) parallel lines b) coinciding lines c) intersecting lines
  59. English

    Yes I'm studying a three-part in-text citation for APA guidelines.
  60. English

    Generally, any sentence that contains research-based information must include a three-part in-text citation that lets readers know the source of the information. True False I sat True. Please check my answer.
  61. English

    Quotation marks are required when using exact words from an outside source. True False I say True. Please check my answer.
  62. English

    When a writer paraphrases or summarizes information from a source, s/he does not need to provide a citation. True False. I say false. Please check my answer.
  63. English

    The sentence below requires a citation. In the last three years, Ford has sold more automobiles in America than any other auto-manufacturer. 1.True 2.False I say False. Please check my answer.
  64. English

    After reading the website you recommended I now say False.
  65. English

    The sentence below requires a citation. The United States of America has 50 states. True False I say True. Please check my answer.
  66. English

    In a research-based paper it is sometimes OK to quote directly from a research source without any attribution. True False I say False. Please check my answer.
  67. math

    2?72 +?32 I got 8?8
  68. Math

    2sqr72+sqr32 9x8 plus 4x8 2sqr3 x sqr8 + 2xsqr8 =8sqr8
  69. English

    Thank-you Ms. Sue for your help. You are great..
  70. English

    Read the thesis statement that follows. Identify why it is a good thesis statement. Government should provide health insurance because the costs of uninsured people damage the economy. A.It is interesting B.Everyone already knows it’s true. C.It mentions a broad topic, ...
  71. English

    The sentence below is a workable thesis statement. The U.S. manufacturing industry should receive more government subsidies so that it can compete worldwide with companies whose governments give greater subsidies 1. True 2.False I say True. Check my answer
  72. English

    Any good thesis statement should contain in-text citations. A. True B. False I say true.
  73. English

    Will the answer be D. The conclusion is the closing statement.
  74. English

    1. Identify which description below is untrue of a good thesis A. A thesis mentions a broad topic. B. A thesis narrows the broad topic to a single statement C. A thesis very briefly mentions the factors that contribute to the writer’s position D. A thesis belongs in the ...
  75. Geometry

    tnks, Cool is 100 correct
  76. Partial Sums and finding a certain term

    Suppose that the nth partial sum of the series ? ?an is Sn = (5n-2)/(5n+2) n=1 ? Find a3. I have tried plugging in n = 3 and solving Sn but that is incorrect. I believe something is wrong with my approach and I would be happy to get some guidance.
  77. Partial Sums

    Suppose that the nth partial sum of the series ? ?an is Sn = (5n-2)/(5n+2) n=1 ? Find a3. I have tried plugging in n = 3 and solving Sn as well as summing the first three terms of the series to find a3. I believe something is wrong with my approach and I would be happy to get ...
  78. Partial Sums

    ignore this question I accidentally posted it
  79. Partial Sums

    Suppose that the nth partial sum of the series ? ? ?n=1 an ? is ?sn = ? 5n ? 2 5n + 2 ?
  80. Recursive Sequence and its Limit

    I have been given the following info: a<1> = 1, a<n+1> = 3*a<n>/6+a<n> I plugged L in and ended up with the equation: L = 3*L/6+L, which I solved and got L = -3 for the limit. However, this answer is either only partially correct or close to the true ...
  81. Mathematical Induction

    Thank you Steve for the response. So from what you have said, I first assume that a<n+1> > a<n> and then prove that the corresponding expression is true? Or is it the other way around?
  82. Mathematical Induction

    Monotonic*
  83. Mathematical Induction

    I have been given that a1 = 1 and an+1 = 1/3*(an + 4). In order to prove that this sequence is monotonous, what is the second step of mathematical induction? If my explaining of the question is unclear, here is a picture of the question and the possible answers. I believe the ...
  84. Calculus (Sequences)

    Hello, here is a picture of the question I am trying to solve, I believe the answer to be C, but I would just like some confirmation/correction. goo. gl/gWfhVn
  85. English

    Choose the correct word or phrase to fill in the blank. Do you really want to give __________ the money that you earned? A.she and Jim B.Jim and she C.them two D.Jim and her I think it's D.
  86. English

    Choose the correct word or phrase to fill in the blank. Neither her associates nor the doctor __________ the surgery is necessary. A.thinks B.think I pick A.
  87. Math

    Put the distance each friend live from one another from greatest to least,4 3/4,4 7/8,4 9/10 and 4 4/5.
  88. physics

    an object of mass 10 kg is at rest when a net force of 20 N acts on it in a direction east. The acceleration produced on the object is? a) 2 m/s^2 in the direction east b) 2 m/s^2 in the direction west c) 0.5 m/s^2 in the direction east d) 0.5 m/s^2 in the direction west e) ...
  89. physics

    A 1-kg rock is suspended from the tip pf a uniform meter at 0 cm mark so that the meter stick balances like a see-saw when the fulcrum is at 20 cm mark. what is the mass of the meter stick?
  90. Finite Math

    Kane Manufacturing has a division that produces two models of hibachis, model A and model B. To produce each model-A hibachi requires 3 lb of cast iron and 6 min of labor. To produce each model-B hibachi requires 4 lb of cast iron and 3 min of labor. The profit for each model-...
  91. FUNCTIONS HELPPPPP????

    Please I need help with this algebra problem With the 3 equations f1(x)=0 f2(x)=1/8(x+16)^2-98 f3(x)=2x+24 Determine an equation for this function with the 3 pieces above.(Refer to creating the polynomial functions) I do not know how does everyone get this answer g(x) = f2(x)-...
  92. Functions

    Can you show me the process to 1/8x^2+2x-90 because I'm getting way different answer
  93. Functions

    i know i need to use this formula g(x) = f2(x) - f3(x)
  94. Functions

    THATS the question
  95. Functions

    I need to make an equation with the 3 pieces
  96. Functions

    Please I need help with this algebra problem With the 3 equations f1(x)=0 f2(x)=1/8(x+16)^2-98 f3(x)=2x+24 Determine an equation for this function with the 3 pieces above.(Refer to creating the polynomial functions)
  97. Functions

    Please I need help with this algebra problem With the 3 equations f1(x)=0 f2(x)=1/8(x+16)^2-98 f3(x)=2x+24 Determine an equation for this function with the 3 pieces above.(Refer to creating the polynomial functions)
  98. Math

    Thank you
  99. Math

    You are randomly selecting one catches on a 52 card deck.find the probability of selecting: a 2 or a 3 I got 2/13 A red 2 or a black 3 I got 1/13 I want to make sure it is correct This is very urgent Thanks
  100. L'Hospital's Rule and Indeterminate Forms

    I understand LHR can be applied to limits of the indeterminate form 0/0 and inf/inf. However, can it be applied to the other indeterminate forms of 1^inf, inf-inf, inf^0, 0^inf, and inf*inf?
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