Posts by sophia

Total # Posts: 300

  1. Math

    How do you explain the meaning of 0?
  2. Algebra

    If f(×)= 3x^2/×-2, then find f(4)
  3. Pre-Algebra

    Use a site called symbolab it even shows your work.
  4. Poetry

    Thanks! That was exactly what I needed! You are a lifesaver!
  5. Poetry

    Here: is the poem (Are the lines regular or irregular?): Quiet Room I love the quiet of my room, silent but for the slightest sound of a breeze that stirs the curtains. Some friends I have would scoff and say, “Come on, this place is boring! Where’s the music? Where...
  6. Poetry

    In poetry what are regular and irregular lines?
  7. Reading

    What is a preposition? What is the preposition in this sentence? "Sally read her book in the living room."
  8. math

    Thank you and i did |x| (thanks for telling me how to solve it instead of the anwser)
  9. math

    use integers values from 3 to -3 to graph the equation y=-[x] I don't know how to solve this please help and explain it
  10. math

    Find the number of ways in which 9 people can be divided into 2 groups: the first group has 5 people and the second group has 4 people.
  11. math

    In how many ways can a committee of 12 people, of which 5 must be in the 21?30 age group, 4 must be in the 31?40 age group and 3 must be in the 41?50 age group, be chosen if there are 6 people of each age group?
  12. math

    24 How many 5-letter “words” can be formed from the letters of the word FORMULATED, if each must contain 2 vowels and 3 consonants? How many of these will have the vowels at the two ends on the “word”?
  13. Math

    Dello, i need help with this problem. Find the periodic withdrawals PMT for the annuity given. HINT [See Example 4.] (Assume end-of-period withdrawals and compounding at the same intervals as withdrawals. Round your answer to the nearest cent.) $100,000 at 6%, paid out monthly...
  14. Physics

    Thank you Damon for answering my other question.. I appreciate... The distance between two successive crests of a water wave travelling at 3.6m/s is 0.45m. Calculate the frequency of the wave?
  15. Physics

    The equation y=5 sin(3x-4), where y is in mm, x is in m and t is in secs, represents a wave motion. Determine the frequency, period and speed of the wave
  16. Math

    The depth is 8 1/2 Scott it think
  17. Utah state history

    1. The contributions of the mountain men include... A: developing first Anglo- American settlements B: establishing good relations with the Native Americans C: developing local resources D: establishing routes through the region for others to follow
  18. social studies

    one way you cannot get to indianapolis
  19. social studies

    wich community is in the weastern region of the united states.
  20. Math

    The median number of magazine appearances made by 7 models is 5. The range of number of magazine appearances by those models is 5. Determine if the following statement is true, is false, or does not contain enough information. At least one of the models made more than 9 ...
  21. English

    What is the specific technique of creative non-fiction at work in Keneally’s text, Schniders list
  22. Math (Calculus Optimization)

    An oil field contains 8 wells, which produce a total of 1600 barrels of oil per day. For each additional well that is drilled, the average production per well decreases by 10 barrels per day. How many additional wells should be drilled to obtain the maximum amount of oil per ...
  23. Math

    Which class sold more
  24. Physics

    An ice cube tray of negligible mass contains 375 g of ice at -5.00 C. What minimum amount of heat must be added to make all the ice into water?
  25. science

    How are suspensions and solutions similar? How are they different? (can use a Venn diagram) I do not understand how these are similar.
  26. Physics

    A half pipe can be thought of as half of a cylinder with radius of 7.00m. If a skater with mass 75.0 kg, starts with an initial velocity of 5.00 m/s at the top of the ramp, (a), what is his velocity at the very bottom of the ramp? The skater then approaches the other quarter ...
  27. French

    It may seem like a lot, but It's Not! 1. I reserved a one way ticket. J’ai réservé un aller simple. 2. We’re fastening our seatbelts. Nous sommes attachons notre (nos?... what’s the difference) ceinture de sécurité. 3. The train ...
  28. Math

    Write a story problem that can be represented with 1152÷24
  29. Biochemistry 105

    8. Arrange the following molecules in the order of increasing polarity. a. (PH3, HCl, H2O, CCl4) b. (NH3, HF, H2O, HBr)
  30. physics

    i think its coal am i right yet i still think its gas ???
  31. physics

    The energy source used to produce most of the electrical energy in the United States
  32. physics

    A small dog is trained to jump straight up a distance of 1.2 m. How much kinetic energy does the 7.2-kg dog need to jump this high? (The acceleration due to gravity is 9.8 m/s2.) Show your work for credit.
  33. math

    I have to use matrices for this one
  34. math

    Three softball teams ordered equipment from the same catalog. The first team spent $285 on 5 shirts, 4 caps, and 8 bats. The second team spent $210 on 12 shirts and 6 caps. The third team spent $250 for 7 shirts, 10 caps, and 3 bats. What were the catalog prices for shirts, ...
  35. College Stats

    Suppose that two random variables X1 and X2 have a bivariate normal distribution, and Var(X1) = Var(X2). Show that the sum X1+X2 and the difference X1? X2 are independent.
  36. math

    maya and winston share some cookies in the ratio 2:3. maya had 3 fewer cookies than winston how many cookies they share altogether?
  37. Chemistry

    1. A student collected the following data for a fixed volume of gas: Temperature (?C) Pressure (mm of Hg) 10 726 20 750 40 800 70 880 100 960 150 ??? Fill in the missing data point. Show all calculations leading to an answer.
  38. Chemistry

    well thank you for your information :)
  39. Chemistry

    Which of the following is true about oxidation reactions? A. Oxidation reactions are the principal source of energy on Earth. B. All oxidation reactions are accompanied by reduction reactions. C. The burning of wood in a fireplace and the metabolization of food by your body ...
  40. Chemistry

    A plasma reaction converts A (Molecular weight = 200) to B and uses NAD as a co-substrate and produces NADH as a by product (1 mole of NADH is produced per every 1 mole of A converted to B). The amount of NADH can be determined by monitoring its’ absorbance at 340nm in a ...
  41. French

    Are the sentences correct in passé composé? I have to use 3 separate verbs, pensé, aimé, 1. J'ai pensé que je venais d'attraper un rhume et me demandais d'où il pouvait venir aussi soudainement. 2. Nous avons aimé la...
  42. Math

    In math class, a student has an average grade of 85% for five tests so far. What grade must that student earn on the next test to reach an average grade of 90% for all six tests?
  43. maths

    amelie is x years old her sister is four years older her brother is three times her age the sum of their age is 44 years
  44. French!

    Please if possible, respond to this and the other question by 11:00 a.m tmrw. 11/15/16 . Thankyou! ____________________________________ The next part is asking for active voice into passive but I'm not sure how to change it. Really Confused! I need help. Transforme ces ...
  45. French

    How do I translate these in passive voice? I don't understand. Help 1. On communique les résultats financiers aux employés. = Les résultats financiers …………………… aux employés. 3. On soumet les ...
  46. math

    Carlita saw 5 times as many robins as cardinals while bird watching. She saw a total of 24 birds. How many more robins did she see than cardinals
  47. math

    Ms.Nikkel wants to divide her class of 23 students into 4 equal teams.Is this reasonable?Why or why not

    The value of a car decreases at a constant rate. After 1 year the value of the car is $20,000. After 2 more yearsit is $14,000. Write an equation in slope-intercept that represents the value y (in dollars) of the car after x years.
  49. math

    The value of a car decreases at a constant rate as it grows older. When the car is 2 years old, it is worth $23,000. When the car is 5 years old it is worth $15,500. Write and equation relating y (value of the car $) to x (age of car).
  50. math

    steve how did you get that
  51. math

    The value of a car decreases at a constant rate. After 1 year the value of the car is $20,000. After 2 more yearsit is $14,000. Write an equation in slope-intercept that represents the value y (in dollars) of the car after x years.
  52. Physics

    A superhero flies 185 m from the top of a tall building at an angle of 15◦ below the horizontal. What is the horizontal component of the superhero’s displacement? Draw the vectors to scale on a graph to determine the answer. Answer in units of m. Your answer must be...
  53. Physics

    A truck travels beneath an airplane that is moving 150 km/h at an angle of 34◦ to the ground. How fast must the truck travel to stay beneath the airplane? Answer in units of km/h.
  54. Physics

    What is the direction of this resultant vector (between the limits of −180◦ and +180◦ from the positive x-axis) ? 1. −88◦ 2. −117◦ 3. −144◦ 4. −143◦ 5. −135◦ 6. −171◦
  55. Physics

    maybe number 4
  56. Physics

    Consider two vectors F~1 with magnitude 69 N inclined at 177◦ and F~2 with magnitude 58 N inclined at 286◦, measured from the positive x axis with counterclockwise positive. What is the magnitude of the resultant vector F~1 + F~2 ? Draw the vectors to scale on a ...
  57. Phyics

    Bob heads out into a lake at an angle of 41◦ with respect to the shore. If his boat is capable of a speed of 1.7 m/s, how far from land will he be in 7 min and 17 s ? Answer in units of m.
  58. Physics

    A person walks 21 m East and then walks 34 m at an angle 32◦ North of East. What is the magnitude of the total displacement? Answer in units of m.
  59. Science-chemistry

    How do I calculate the amount of heat will be required to make 100.0kg of a compound, the molar enthalpy is -63kj/mol for the same compound
  60. social studies

    I don't I don't know
  61. math

    how do you explain a number pattern
  62. Physics

    The Olympic record for the marathon set in 2008 is 2 h, 6 m, 32 s. The marathon distance is 26 mi. What was the average speed of the record-setting runner in km/h?
  63. Maths

    An amount of money is shared by three people in the ratio 2 : 5 : 8. What fraction of this money is given to the person who receives the smallest share?
  64. physics

    A car accelerates from rest at 1.0 m/s^2 for 20s along a straight roa, it then moves at a constant speed for half an hour, it then deccelerates uniformly to a stop in 30s. Find the total distance covered by the car.
  65. math

    a jewelry company makes charms in a 2 x 2 x 3 inch box. They ship the charms in a 3 x 4 x 5 inch box. how many of the smaller boxes can fit into the larger box to ship the charms? the first is 2 x 2 x 2 = 12 the second is 3 x 4 x 5 = 60. However, the answer is not 5. Thanks ...
  66. math

    a jewelry company makes charms in a 2 x 2 x 3 inch box. They ship the charms in a 3 x 4 x 5 inch box. how many of the smaller boxes can fit into the larger box to ship the charms? the first is 2 x 2 x 2 = 12 the second is 3 x 4 x 5 = 60. However, the answer is not 5. Thanks ...
  67. math

    There are 6 different orders
  68. Statistics

    For a set of scores with a mean of 111 and a standard deviation of 8, what is the percentile rank of 90? (round to two decimal places, no leading zeros)
  69. Chmistry

    Write a balanced chemical equation for the combustion of acetylene if the products are: a) Carbon and water vapour b) Carbon monoxide and water vapour c) Carbon, carbon dioxide. Carbon monoxide and water vapour d) The complete combustion of acetylene
  70. math

    I=PRT I=900*0.09*3 I=243 243+900 1143/36 Answer=$31.75 monthly
  71. 4th grade math

    360 degrees
  72. physics

  73. Algebra 1 college

    How much of a 12% saline solution should be mixed with a 4% saline solution to obtain 40 milliliters of a 6% saline solution?. Use a system of equations and elimination method to solve. can someone please see if I am on the right track. 12T + 4F=6x40 -4 -4F 4 8T=2x40 8T=80 8T/...
  74. Math

  75. English

    #4 was The narrator usually enioyed writing, but(she diliked her latest writing assignment.) -IC Thank you for your time and help!
  76. English

    My homework is about identifying independent and dependent clauses The sentence in () marks is the clause they're asking for. 1. The narrator's mother worked on her inventions at night, (after her husband fell asleep) - Dependent Clause 2. She would work on an idea, ...
  77. Language Arts

    Yes it's B
  78. Algebra

    Suppose you want to enclose a rectangular garden plot against a house using fencing on three sides, as shown at the left. Assume you have 50 ft. of fencing material and want to create a garden with an area of 150 ft². A. Let w = the width. Write an expression for the ...
  79. Math

    The area of a rectangle is fixed at 150 square feet. For what lengths will the width be less than 10 ft?
  80. Math

  81. Math

    1. the points given are two of the 3 vertices of a right triangle. Which could be the third vertex of the triangle given 2 points are (-4,-5) & (3,2) ? 2.) A circle with center O and radius r is intersected at 2 distinct points by line l. Which is true? a. The distance between...
  82. English & Composition

    Thankyou! If I do need other help, I'll be sure to ask you. Can you please mark my question that way when I ask a question, you can hopefully go back to it and help. Much appreciated
  83. English & Composition

    What can I include & How can I include it as far as "Transition" to the "Background" ?
  84. English & Composition

    The prompt to this formal essay I have to write is : How do Thoreau in "Civil Disobedience", Gandhi in "On The Eve of Historic Dandi March", and MLK Junior in "Letter from Birmingham Jail reflect the spirit of optimism? ...
  85. Precalc

    suppose you want to invest $60,000 for ten years. You can invest your money in a CD that earns 4% interest, compounded quarterly and has no risk, or you can invest your money in futures that ear 10% interest, compounded quarterly. However, the second investment has a 25% ...
  86. Physics

    its 67

    1. Given the following set of quantum numbers: 3py -1/2. A chemistry student claims that this represents a peanut-shaped electron. Is she correct? Answer (Am I correct? If not, how?) : She is correct because 3py is a peanut shape with -1/2 being the spin. 2. A chemistry ...
  88. English & Comp.

    Your link Ms.Sue didn't really help me out. It just pointed where the quote was at in MLK's letter
  89. English & Comp.

    What is after the - is what I have to identify what rhetorical device it is.
  90. English & Comp.

    I had to write what type of rhetorical device was used. Some I wasn't sure of.
  91. English & Comp.

    Are these right? I wasn't sure of 2 of them. It'll be in parenthesis. Literary Allusion -(Ross’s line in Shakespeare’s Macbeth): “Let not your ears despise my tongue forever.” 26. - the principle guiding the art of writing effectively, eloquently, ...
  92. Chemistry(MOLEDAY)

    I created my Mole: MOLE'YMPICS *(Olympics)*... That is my Mole-word or Phrase but Idk if my descriptive caption below would be a phrase. I don't know what my descriptive caption could be. Or at least Idk how to make it FUNNY or HUMOROUS? My original Descriptive caption...
  93. Math (help)

    find the zeros of the function: f(x)=2x^4 -x^3 +7x^2 -4x -4 ...
  94. Pre calc- confused

    Geometry/Maximum area: A rancher wants to enlarge an existing rectangular corral such that the total area of the new corral is 1.5 times that of the original corral. The current corral's dimensions are 250 feet by 160 feet. The rancher wants to increase each dimension by ...
  95. physics

    Two racing boats set out from the same dock and speed away at the same constant speed of 120 km/h for half an hour (0.500 h), the blue boat headed 23.7° south of west, and the green boat headed 34.4° south of west. During this half-hour (a) how much farther west does ...
  96. Math

    Using the break apart method what is the best way to multiply 8x7
  97. Chemistry

    In the last part of this experiment, the temperature of tap water was recorded for fifteen minutes as the tap water was heated in a beaker. Identify the dependent and independent variable. (THE TEACHER Just said THE DEPENDENT AND INDEPENDENT VARIABLE but idk if he/she wants ...
  98. collocation

    1.Analyze the occurrences of collocation used in the below article Puffin Therapy The Atlantic puffin simply vanishes for months at a time. But when it returns to land, the fearless, clown-faced seabird is a sight that soothes the soul of many a bird-watcher. Here they come, ...
  99. Algebra

    A baker bakes a batch of muffins and splits the batch evenly onto six different trays. She then adds five croissants to each tray. If each tray now contains at least twenty baked goods, what is the least possible number of muffins in the baker's original batch? I don't...
  100. Ms. Sue PLZ HELP!!!(science)

    Right Persons correct
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