Posts by aaron

Total # Posts: 586

  1. Calculus

    Show that the series sum(-1)^(n-1) b_n, where b_n = 1/2 if n is odd and b_n = 1/n^2 if n is even, is divergent.
  2. math

    Craig is arranging plates for a party. He has 3 types of sandwich, 2 types of cake and 4 types of biscuit. Which shows the number of possible combinations of sandwich, cake and biscuit on a plate? A) (3*2) + (3*4) How do i work this out? B) 3*2*4 C) (3*4) + (2*4) D) 3+2+4 E) (...
  3. math

    Hamid will be x years old 7 years from now. How old was he 7 years ago? (Your answer should include x.)
  4. English

    thanks for helping
  5. English

    Include a colon and an explanation. The town reminded me of my childhood vacations: both were on the beach. Is this right?
  6. English

    why does the author repeat the word 'never-ending'? Life seemed to be never ending. Every day, i rush to the car, i rush to school. Lessons seemed to be a never-ending run.
  7. English

    they wasn't any words that match.
  8. English

    change general into a word that means make bigger... the word starts with an e.
  9. English

    does this sentence make sense? He had to leave the park soon because he left his three cars' engines running.
  10. English

    thanks
  11. English

    Her nine snails' shells were put on display in the Animal Museum. Is this right?
  12. English

    can you write a sentence using the words snails' shells?
  13. English

    can you write a sentence using the words: bicycle's wheel? thank you.
  14. math

    i will roll a fair 6-sided dice. Writing your answers as fractions in their lowest terms, what is the probability of rolling: 1) a 4? 2) an even number? 3) a 7? 4) number less than 5? 5) number less than 10?
  15. english

    The narrator found ______ in front of the Post Office.
  16. English

    please can u check my work. Thank you. example of a passive sentence: Macaws eat nuts and berries. Nuts and berries are eaten by the Macaw. 1) Capuchin monkeys eat fruit, insects, leaves, small birds and frogs. my answer: Frogs, small birds, leaves, insects and fruit are eaten...
  17. math

    thx
  18. math

    Multiply 3/14 of a week by four and give your answer in hours. I am not sure how to do this in an easy way. thank you for helping.
  19. English

    ok
  20. English

    can u write five lines of a story about u and some explorers in the forest and something happens as monsters leave the clearing. it doesn't have to be that descriptive as I am going to improve it by adding adjectives and other punctuation. thank you. P.S please do it as ...
  21. Chemistry

    Write the element symbol and charge for this monatomic ion: Consider a monatomic ion that has the electron configuration of [Kr]4d^10 5s^2 and a charge of 2+
  22. Chemistry

    Thank you!
  23. Chemistry

    -Calcium chloride contains calcium and chloride ions. Write the ground-state electron configuration for the calcium ion. -Write the ground-state electron configuration for the chloride ion.
  24. Math

    Julio purchased some power tools totaling $2,174 using a six-month deferred payment plan with an interest rate of 28.19%. He did not make any payments during the deferment period. What will the total cost of the power tools be if he must pay them off the power tools within the...
  25. Geometry

    There are three points on a line, A, B, and C, so that AB = 12 cm, BC = 13.5 cm. Find the length of the segment AC . Give all possible answers.
  26. Math

    Show how to make one addend the next tens number. 15+37=?
  27. Physics

    In an electric freezer, 400.0 g of water at 18.0 degree C is cooled, frozen, and the ice is chilled to -5.00 degree C. How much total heat was removed from the water
  28. Verbal

    Claudia is orginising a fashion show .Jamie,Alice,Susie and Lao are modelling the outfits.Each wears 4 different outfits. All of lao's outfits are pink.Half of Alice's outfits are pink and the rest are red.One of Jamie's outfits is red and the others are blue.Susie...
  29. Physics

    1225 watts
  30. Physics

    A weightlifter raises a barbell of mass 150 kg from the floor to over his head 2.5 meters in 3 seconds. What is his average power input?
  31. Science

    Hello, can anyone help me answer this question: What is the result of a silent mutation at a) DNA level b) amino acid level c) protein level d) phenotype level Thank you.
  32. algebra

    describe the transformation done by y=1/x to get y = 1/4x -12
  33. Algebra

    Determine the holes, vertical asymptotes and horizontal asymptotes of the rational function y=(3x^(2)+8x-10)/(x^(2)+7x+12) Hole: Vertical Asymptote: Horizontal Asymptote:
  34. Algebra

    b) y = 3(.25)^x growth or decay y-intercept:
  35. Algebra

    Determine whether each function is an example of exponential growth or decay. Then find the y-intercept. a) y = 2(4)^x growth or decay y-intercept: b) y = 3(.25)^x growth or decay y-intercept:
  36. algebra

    The length of a rectangle is 2 1/2 times the width, and the perimeter is 42 feet. What are the dimensions of this rectangle?
  37. algebra

    The ratio of Natalie’s markers to Susan’s markers was 5:3 at first. After Natalie gave 25 markers to Susan, they had an equal amount of markers each. How many markers did they have altogether?
  38. Algebra

    1. Find all the real square roots of a. .0064 b. - .0081
  39. Algebra

    1. Find all the real square roots of a. .0064 b. - .0081
  40. Algebra

    Rewrite 32^3/5 as a radical expression and then simplify.
  41. chemistry

    A student dissolves a .726 g aspirin tablet in water and titrates the solution with .272 M NaOH are required to reach the equivalence point. Calculate the percentage of acetylsaliclic acid in the tablet. I am not really sure where to start with this. I unfamiliar with problems...
  42. Biology

    What amino acid property makes proteins highly functional? I would assume it would be the structure and sequence, but are there additional properties?
  43. Introduction to small engines

    The distance the piston must travel from TDC to BDC is referred to as the of the engine
  44. chemistry

    Create balanced equation, given the two compounds in aqueous solution may react with one another. State whether or not a chemical reaction occurs. Make sure to include the state of each reactant and product. If a precipitation reaction occurs, provide the ionic and net ionic ...
  45. Computing

    Sorry I mean't computing not c. Would the answer be a pdf? Thanks
  46. C

    Most organisations produce a document stating what they expect their members to do to behave in an ethical way. State the name of these documents... Thank you.
  47. Science

    The (blank) has given scientists information about past life on Earth.
  48. Pre Cal 12

    A 12cm by 8cm rectangular piece of metal is to be made into an open-top box by cutting a sqaure from corner and folding up the resulting flaps (sides). If the volume of the lidless box is 36 cm what are the integer dimensions of the box?
  49. Maths

    Grace spent 1/8of her money on popcorn and 1/4 of her money on a drink. 1.IF THE drink cost€1.32,how much money had she altogether 2.what fraction of her money did she spend? 3.how much money had she left?
  50. Math

    is x^2-3x+28 factorable
  51. algebra

    The perimeter of a square is to be at least 15 feet, but not more that 52 feet. Find all possible values for the length of its sides.
  52. Algebra

    What is the equation, in standard form, of a parabola that models the values in the table x (-2,0,4) F(x) (2.5,1.5,-60.5)
  53. social studies

    Compare the situation in Burundi to the American Revolution
  54. Algebra

    Can someone help me with these two equations, I need to solve them by completing the square, I know the answers, (Number 1 is -11.56, 1.56, and number 2 is -10.35, 1.35) I just can’t remember how to get those numbers again, I have so much math on my paper I am confused. :...
  55. Algebra

    A conic section has the equation x2 + y2 + 10x + 8y = 40. Determine the following: type of conic, domain and range, axes of symmetry, and center. Show your work.
  56. Algebra

    Identify the type of conic section that has the equation 9x^2+ 25y^2 =225 and identify its domain and range.
  57. Algebra

    the foci of the ellipse given by the equation 100x2 + 25y2 = 2500?
  58. math

    For an 18 month period, the last term is and the series sum is . For a 24 month period, the last term is and the series sum is . For a 30 month period, the last term is and the series sum is .
  59. biology

    stem cells
  60. None

    If there's three there's two If there's two there's one If there's one there's none. What's the answer?
  61. Algebra

    The equation h = -16t^2 + 32t + 9 gives the height of a ball, h, in feet above the ground, at t seconds after the ball is thrown upward. How many seconds after the ball is thrown will it reach its maximum height? What is its maximum height?
  62. Math

    A hardware store makes a mixed bag of 42 items using screws, bolts, and washers. The cost of screws are $3.00 each, bolts cost $2.00 each, and washers are $1.50 each. The mixture calls for four times as many screws than bolts. The total cost of the mixture is $102.00. How much...
  63. Math

    What point maximizes the objective function P = 4x + 3y for the constraints below. What is the maximum value? Constraints: x>=0 y>=0 y<=1/3x-4 6>=y
  64. PLEASE HELP HISTORY

    all are right but 1. the one after the only two DDs is C not B
  65. Physics

    Figure shows a circular wire loop of radius r carrying current i placed in a perpendicular magnetic field B. Suppose that the radius of cross section of the wire is a. Find the decrease in radius of loop when magnetic field is switched off if Young’s modulus is Y.
  66. Algebra

    12. Determine whether y varies directly with x. If so, find the constant of variation and write the function rule. x - 1, 2, 5 y - 1, 2, 5
  67. Algebra

    graph the inequality y<-|x - 5|
  68. Algebra

    8. Write an equation for a trend line and predict the value when x is 15. x 0 3 6 9 12 y 17.5 35.4 50,5 60.6 66.3
  69. Algebra

    7. Write the equation of a trend line. Number of hours 8 5 12 10 2 9 11 14 Score% 7562 80 85 35 70 82 95
  70. Math

    an oak tree casts a shadow that is 5 meters long. at the same time, a 6.2-meter-tall flagpole casts a shadow 4 meters long. how tall is the tree?
  71. Chemistry

    One isotope of a metallic element has mass number 10 and has 7 neutrons in the nucleus. It forms an atomic ion having 2 electrons. Enter the symbol for this ion
  72. Goverment

    Oh and btw the answers A. XD
  73. Goverment

    Which of the following was one compromise related to the Declaration of Independence that was agreed to by the delegates to the second continental congress? Language condemning the slave trade was removed Language criticizing the English people was strengthened A list of ...
  74. Chemistry

    Describe how lead(II) iodide cen be prepared in the laboratory
  75. physics

    Michael, whose mass is 80 kg, runs at a speed of 3 m/s. What is his kinetic energy?
  76. Model Essays

    To analyze it for me following Visser's example
  77. Model Essays

    All of us have probably experienced a particular moment (or perhaps many moments) when we were willing to dine out on anything but fast food. What do you think we are seeking at such times? Following Visser's example, write an essay analyzing the "culture" of a ...
  78. Math

    What is the difference between 20 hundreds and 3 x 10 to the 2nd power
  79. Math

    How much more is 245,612 than the combined numbers of 18,912 and 45,608
  80. Math

    I am a number between 1000000 and 2000000. My ones digit is the sum of my tens and hundreds digits and is also the sum of my millions and ten thousands digits.my hundred thousands, thousands, and ones digits are the same.the sum of my digits is 45.what number am i?
  81. Math

    I am a number between 1000000 and 2000000. My ones digit is the sum of my tens and hundreds digits and is also the sum of my millions and ten thousands digits.my hundred thousands, thousands, and ones digits are the same.the sum of my digits is 45.what number am i?
  82. Finance

    Mrs. Rogers wants to take a trip in ten years, she can save 650 every 3 months and earns 7.8% compounded quarterly. How much is her account worth at 5 years? What formula should I be using for this? None of them I have tried seem to give me near the correct answer.
  83. Maths

    269
  84. Geography

    Islanders living in Beqa, Fiji lived primarily by hunting and eating meat by fishing and cultivating tara (my answer) by gathering nuts for exports by eating plants
  85. TRIGONOMETRY2

    color each point in the coordinate plane either red or blue. prove that no matter how the coloring is done there must exist two points of distance one that are the same color.
  86. TRIGONOMETRY

    given real numbers x, a, b with x>= a>= b>= 0, show that sqrt x+b - sqrt x-a >= sqrt x+a - sqrt x-b
  87. trig3

    color each point in the coordinate plane either red or blue. prove that no matter how the coloring is done there must exist two points of distance one that are the same color.
  88. trig2

    given real numbers x, a, b with x>= a>= b>= 0, show that sqrt x+b - sqrt x-a >= sqrt x+a - sqrt x-b
  89. trig

    tan(theta)/tan(2theta)-tan(theta)= cos(2theta)
  90. Biology

    Do you expect that somatic cell gene therapy and germ-line gene therapy for the same disease will be equally difficult?
  91. maths

    409 726 IN STANDARD EXPANDED NOTATION
  92. math

    The mean of 14 numbers is 50. Removing one of the numbers causes the mean to decrease to 43. What number was removed?
  93. math

    For a popular Broadway musical, the theater box office sold 356 tickets at $80 apiece, 275 tickets at $60 apiece, and 369 tickets at $45 apiece. How much money did the box office take in? A. $16,605 B. $44,980 C. $61,585 D. $16,500
  94. Chemistry

    An interference filter is to be constructed for isolation of the nitrobenzene absorption band at 1537 cm-1. (a) If it is to be based on first-order interference, what should be the thickness of the dielectric layer (refractive index of 1.34)? (b) What other wavelengths would ...
  95. chemistry

    For the reaction N2(g) + 3H2(g) 2NH3(g), what will happen if more ammonia gas is added?
  96. Math

    Yipee, thanks!
  97. Math

    Can someone help me complete this table? a - 5, 6, 7, 8, 9 b - 3.8, 4.6, 5.4, _, _ So, do you add 0.8 each time? I think the next two numbers are 6.2 and 7.0.
  98. math

    Can someone help me complete this table? a - 5, 6, 7, 8, 9 b - 3.8, 4.6, 5.4, _, _ I don't have any answers. I'm sorry. Is there a rule?
  99. Biology :)

    It's B. oxygen in the solution will naturally diffuse into the cell.
  100. physics

    a side view of a car tire before it is mounted on a wheel. Model it as having two sidewalls of uniform thickness 0.695 cm and a tread wall of uniform thickness 2.50 cm and width 23.2 cm. Assume the rubber has a uniform density 1.10 103 kg/m3. Find its moment of inertia about ...
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