Posts by c

Total # Posts: 485

  1. Algebra

    Give an equation that models a linear pattern and then give an equation that models a nonlinear pattern.
  2. Geometry (trig part)

    How far apart would the top of the drawbridge be when both sides are open, if the angle of elevation of the drawbridge was 20°, to the nearest hundredth? (Extra info: distance inbetween is labeled "x")
  3. help with language arts

    Well, here's what I think it is: 1. B (since it sounds like they want to spread the news by announcing it to the public) 4. D (it's just stating another form of transportation)
  4. Physics

    Consider a lever rod of length 7.96 m, weight 71 N and uniform density. The lever rod is pivoted on one end and is supported by a cable attached at a point 1.74 m from the other end: ????? ????The lever rod is in equilibrium at angle of 54? from the vertical wall. The cable ...
  5. chemistry

    a metal p forms 2 different chlorides x and y. if 12.7g of chloride x and 16.3g of chloride y contain 7.1g 10.7g of chlorine respectively, show that the figures agree with the law of multiple proportion
  6. physics

    At 15 minutes past the hour, a 47.0 g mouse runs up a grandfather clock and sits himself down at the end of the minute-hand. If the minute-hand for the clock is 16.0 cm long, what is the magnitude of the torque exerted by the mouse on the minute-hand? Give your answer in the ...
  7. physocs

    At 15 minutes past the hour, a 47.0 g mouse runs up a grandfather clock and sits himself down at the end of the minute-hand. If the minute-hand for the clock is 16.0 cm long, what is the magnitude of the torque exerted by the mouse on the minute-hand? Give your answer in the ...
  8. Mathematics

    Luck is right, I got 100%. Thank you!
  9. Chemistry

    that answer you got is in K not degrees C
  10. French

    Remember, when using the future tense, the endings WITHOUT taking off the ER or IR are ai, a, as, ons, ez, and ont. With RE, you remove the "E" and then add the endings. There are a lot of irregulars tho with the future tense, so be careful! Some may include: Avoir: ...
  11. chemistery

    Discuss the isomerism exhibited by alkenes
  12. SS Help

    Im stuck on the same question
  13. Vectors Q#2

    Find the shortest distance between the point D with coordinates (-2,-2,9) and the line passing through the points with coordinates B(2,4,6) and C(4,1,5)
  14. Vectors - Maths

    Clarification AC is the midpoint of the HYPOTENUSE DB of the right angle triangle
  15. Vectors - Maths

    In triangle ABD, AC = CD = CB. Let AB = u and BC = v. Prove that DAB is a right angle triangle. AC is the midpoint of the assumed "right angle triangle" and is equidistant from the three vertices. Angle DAB is presumed to be 90. Pls help me with this proof
  16. math

    #2 is d, #7 is b, #8 is c, #13 is a, #15 is b, #17 and #18 is a, #19 is c, #23 is d - the rest are all correct
  17. Vectors

    In triangle OAB, OA = 3i + 4k and OB = i + 2j - 2k. Find OP, where P is the point where the bisector of Angle AOB intersects AB. Answer is 7i/4 + 5j/4 + k/4 Don't use the matrix method as I haven't learnt it yet and please show working. Thx a lot.
  18. Need help with vector questions posted below

    Hope you didn't miss mine below :)
  19. math

    Let x be mother and y be son Equation 1 : x - 5 = 2*(y - 5) Equation 2: x + 6 + y + 6 = 82 x - 5 = 2y -10 (1) x + y + 12 = 82 (2) x -2y = -5 x + y = 70 [Eliminate x] -3y = -75 y = 25 [Son's age] Sub y = 25 into x + y = 70 x + 25 = 70 x = 45 [Mother's age] Check my ...
  20. Math

    Let x = big pail and y = small pail Equation 1 : x + y = 21.8 Equation 2 : 9*(y - 0.36) + (y - 0.36) = 21.8 Therefore, big pail = 19.26 litres Therefore, small pail = 2.54 litres
  21. cirle the smaller number

    Not entirely sure what you mean but 1 will be the smallest number
  22. Science

    Go to Google and type "definition of love"
  23. Math

    9 > b
  24. social studies

    Please check your spelling. Also what's the quote?
  25. Vectors - Maths [Second Question]

    Let a = i - j + 2k and b = i + 2j - 4k a) Find 2a - 3b This one was easy. It should be -i - 8j + 16k b) Hence find a value of m such that a, b and c are linearly dependent, where c = mi + 6j - 12k. I struggled to solve this one. Please help me by showing your working and ...
  26. Vectors - Maths

    Given that a = i - j + 2k, b = i + 2j + mk and c = 3i + nj + k, are linearly dependent. Express m in terms of n in simplest fraction form. Answer: m = (2n-9)/(n+3) Can someone pls show their working and explanation? Thx a lot ~C~
  27. Science

    An increase in the level of nutrients in a water body leads to an excessive increase in the population of algae in the water body. When these algae die, they serve as food for decomposers. A lot of oxygen is utilised in this process, consequently leading to a decrease in the ...
  28. Science

    Sorry i can't post the URL :( I am not allowed. hopefully u will be able to find it in google
  29. Science

    I can't explain it any better than this website: How to find Polaris the North Star by instructables . com
  30. science

    (NH4)2CO3 (s) => 2NH3 (g) + CO2 (g) + H2O
  31. math

    You muddled up your Step #3 you did not have to times (2) in front. To clarify here is what I did: 6x + 8(1/2x + 3/4) = 10 6x + 8/2x + 24/4 = 10 6x + 4x + 6 = 10 10x = 4 x = 2/5
  32. calculus

    What is g(h(x))? Can't help you if you do not have the equation posted. Find the derivative of F(x) and sub in -2 replacing x
  33. Math

    If the baseball team won 18 games, then they lost 12 games. So the percentage of games lost is 12/30 x 100% = 40%
  34. Math

    Let peanuts = p, chocolate = c and raisins = r p = (r-20) c = (r/2) r = r Equation is (r-20) + r/2 + r = 200 Take it home from here :) GL Need help? Ask!
  35. Physics

    ?????? Physics is good!
  36. Math

    Scaling factor is 12/8 = 3/2 Therefore length of the 12 tiles wide rectangle is 10 times 3/2 = 15 tiles long
  37. Math

    80 + 6x = 145 - 7x 13x = 65 x = 5 After 5 weeks both of you will have $110
  38. Math

    12 slices to a pizza 3/4 of 12 is 9 slices gone so 3 slices left
  39. Math discussion

    Just a possibility - you do realise that the Internet address could be a public wifi
  40. Social Studies

    I hate homeschool it's more stressful
  41. Algebra

    My answer *** What is the product of (–6.8)2? a. –13.6 b. 46.24*** c. –46.24 d. 13.6 2.   Simplify the expression - Square root 196 . a. 98 b. –14*** c. 14 d. 392 3.   Simplify the expression square root 100/49 . a. 10/7 b. 17*** c. 5/7 ...
  42. Math

    What would be the total amount if Sara deposited $700 at 2% compound interest for 23 years?
  43. math

    Find the area of the following plane figure. An ellipse has a major axis of 14 cm and a minor axis of 10 cm. Find its area. Area (to the nearest tenth) =
  44. math

    Find the area of the following plane figure. Use = 3.14. A circle has a radius of 8 cm. What is its area? Area (to the nearest tenth) =
  45. math

    Jon Ericson bought a home with a 11.5% adjustable rate mortgage for 20 years. He paid $10.67 monthly per thousand on his original loan. At the end of 2 years he owes the bank $50,000. Now that interest rates have gone up to 13%, the bank will renew the mortgage at this rate or...
  46. math

    The garage you work for as an auto mechanic measures 230 ft. by 150 ft and handles 69 cars. Using the existing garage as a model, how much space would you plan to have in your garage? Number of cars parked at any one time = 24. Required area of service garage =
  47. math

    Find the area of the following plane figure. A circle whose circumference measures 28 centimeters. Area (to the nearest square centimeter) =
  48. math

    Solve the following problems related to automobile insurance. Jerry Adams normally pays $875 for bodily injury and property damage insurance. His insurance company increases premiums by 150% for 1 accident, 200% for 2-3 accidents, and 250% for 4 accidents. Find his premium for...
  49. math

    Find the area of the following plane figure. Find the altitude of a triangle whose area is 100 cm2 and whose base is 20 cm. Altitude =
  50. math

    Use the formula to solve the problems. B * In The amount that results when $3,000 is compounded at 7% annually over eight years. $ a0 The interest earned in this case.
  51. math

    Work the following area application problem. You are given the job of laying carpet for a six-story building. At each floor the dimensions of the floor are 75 meters in length by 40 meters in width. A stairwell takes up a space 2.5 m by 1.5 m, and cuts through each floor. If ...
  52. math

    Compute the following costs of services problems. Hourly rate of labor = $12.00 Duration of job = 3 1/2 hours Overhead rate = 66 2/3% Price of parts = $112.50 Find total cost of job. $
  53. math

    Total cost of job = $147.51 Duration of job = 5 hours Price of parts = $32.50 Overhead rate = 55% Hourly labor rate = $
  54. math

    Labor rate = $14 per hour Hours worked = 40 Overhead rate = 125% Retail price of good furnished = $85 Sales tax rate = 6% Total bill for services and parts = $
  55. math

    Amount of chicken = 48 lb. Portion size = 8 oz. Number of patrons served =
  56. geometry

    Find the coordinates of the midpoint of a segment having the given endpoints. Q(1, -3), R(11, 5)
  57. Chemistry

    Given the following information: C(s) à C(g), H = +715 kJmol-1 Cl2(g) à 2Cl(g), H = +242 kJmol-1 C(s) + 2Cl2(g) à CCl4(g), H = -135.5 kJmol-1 Calculate the average bond dissociation enthalpy of a C-Cl bond.
  58. Language Arts, check!!!

    B D A A Are correct
  59. Math

    260wk = yards
  60. Probability

  61. Math

    A bracelet is 8 inches long. The string to make it is sold by the foot. What fraction of a foot is used to make the bracelet? Anything would help! 12 inches= 1 foot
  62. Med

    What is the influence of pressure on the respiratory system?
  63. Physics

    A ball is projected horizontally from the edge of a table that is 1.14 m high, and it strikes the floor at a point 1.40 m from the base of the table. It's initial velocity is 2.9 m/s. How high is the ball above the floor when its velocity vector makes a 43.6o angle with ...
  64. Language

    raina the helper is right
  65. Math

    don't worry here are the answers is right, thank you for the answers!
  66. Math

    still 100%, thank you!!
  67. Math

    100% thank you!
  68. MATH help ty

    Sub the second equation into the first.
  69. Discrete Math

    A quiz consists of 3 multiple choice questions, each of which have 10 answer choices. You are allowed three attempts at the quiz. What is the probability that someone would end up with a perfect score for the quiz simply by guessing the answers?
  70. Math

    I can grade 5 papers in 45 minutes how many papers can I grade in 1.5 hours
  71. Chemistry

    Thank you haha I was just confused because it's Ca(HCO3)2 and I didn't know if it was a tricky question
  72. Chemistry

  73. Chemistry

    How many calcium atoms are in a formula unit of calcium hydrogen carbonate? 1. 1 2. 2 3. 4 4. 3 5. 5
  74. Algebra

    i got 100%, thank you!
  75. Accounting - Tax

    Bob (age 40) and Susan (age 39) Cowen are married. Susan works as a retail manager and Rob is a self-employed electrician but does not maintain a home office. Their 2015 tax and other information are as follows: Salary – Susan 75,000 Federal withholding on salary 24,000 ...
  76. Math

  77. Chemistry

    Microwaves, such as those used for radar and to heat food in a microwave oven, have wavelengths greater than about 3 mm. What is the frequency of radiation of wavelength 13.82 mm?
  78. English

    thank you :D .. ellen1 is another website, ("The Women's Rights Movement") is the other.
  79. English

    I have one author from one website is this an in text citation (Ellen, Judy. Pg 1)
  80. English

    I did but the website doesn't have an author. I put this on my work cited list: "The Women's Rights Movement, 1848–1920 | US House of Representatives: History, Art & Archives." The Women's Rights Movement, 1848-1920. Web. 13 Oct. 2015. plus the ...
  81. English

    “The Women's Rights Movement, 1848-1920. Web. 13 Oct. 2015. Is this considered a in text citation?
  82. English (Check)

    ok thanks
  83. English (Check)

    I'm not writting a paper, I'm doing a powerpoint and I've gotten my information from a website and it doesn't have any authors or page number..
  84. English (Check)

    edit: The natural rights for women should be about social, and institutional barriers that limits women’s right that includes their family responsibilities.. Meaning that a female shouldn’t wait hand and foot for a man. This also means women should not...
  85. English (Check)

    The title of my project says it all.. Women are most effected by the issues. The women right movement have been going on ever since the 1800’s. The natural rights for women should mean them getting equal pay, getting the same job as a man and women not being ...
  86. Chemistry

    I think the combustion results in 18.8 g H2O... still don't know how to get CxHy though.
  87. Physics

    A radar station locates a sinking ship at range 16.0 km and bearing 136° clockwise from north. From the same station, a rescue plane is at horizontal range 19.6 km, 155° clockwise from north, with elevation 2.35 km.
  88. Physics

    Two people pushing a stalled car from rest generate a net force of +840N for 5.0s. What is the cars final velocity?
  89. English

  90. Math Probability

  91. Biology

  92. Chemistry

  93. Chemistry

    Calculate delta g and Kp for the following equilibrium reaction. Keep getting 7.2E-81 and the answer is 4.5E-81 Why?
  94. Calculus

    A wealthy patron of a small private college wishes to endow a chair in mathematics with a gift of G thousand dollars. Suppose the mathematician who occupies the chair is to receive $110 thousand dollars per year in salary and benefits. If money costs 8% per year compounded ...
  95. Chemistry

    I appreciate the help even with the slight attitude. Just to let you know in all respect my professor assigned this during my winter break last minute to me soon to be going back for spring semester, we've never learned how to do buffer equations yet. So I'm trying my ...
  96. Chemistry

    I do know that titration curves are done with pH vs Volume. This is pretty much exactly how my teacher worded it, so I do know that I'm reaching that's why I'm trying to figure it out to the best of my ability. Please someone help.
  97. Chemistry

    Problem: Calculate the pH titration of 50 mL of 0.02M H3PO4 from pH 1 to 13 with 0.4M NaOH. So I believe the balanced reaction is: H3PO4 + OH --> H2PO4 + H2O (Since Na I believe is insignificant, maybe that's wrong. If so then, H3PO4 + NaOH --> NaH2PO4 + H2O) ICE ...
  98. chemistry

    What volume of 0.20M NaOH will contain 1.00g of NaOH
  99. math

    The answer is 6:4 I just answered the question and got it right.
  100. Ap calc

    shouldnt it be 25 for the last line, not 24? all else looks right tho
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