Posts by Adriana

Total # Posts: 138

  1. Math

    So what do you think?
  2. Math

    I think that it is B but I am not quite sure.
  3. Math

    compare the parent function f(x)=x^2 to the quadractic function f(x)=-2x^2-6. the 6 in the function does which of the following? a.it makes the graph narrower than the parent function. b.it makes the graph wider than the parent function. c.it causes the graph to reflect ...
  4. Cal 2

    Find the volume of the solid whose base is the region bounded by the x-axis, the curves y=x, y=3x^2, x=0, and x=.333333 and which has the property that each cross section perpendicular to the x-axis is an equilateral triangle.
  5. Math

    Robert won $900,000 in the North Carolina State Lottery. After paying $350,000 in taxes, he invested the remaining money in a savings account with a 4.25% interest rate. How much money is in the account if Robert makes no deposits or withdrawals for two years?
  6. Geometry

    Explain how you can use a straight edge and a protractor to show that each angle you formed by a bisector is one-half the original angle.
  7. Math

    One lap around a track is one-eighth of a mile. A horse ran a distance of 11 laps in 3 minutes and 30 seconds. What was the horse's average speed in miles per minute?
  8. Math

    The question:Consider a data set of 15 distinct measurements with mean A and median B. (a) If the highest number were increased, what would be the effect on the median and mean? Explain. The mean would remain the same while the median would increase. Both the mean and median ...
  9. Stats

    Childhood participation in sports, cultural groups, and youth groups appears to be related to improved self-esteem for adolescents. (McGee, Williams, Howden-Chapman, Martin & Kawachi, 2006). In representative study, a sample of n = 100 adolescents with a history of group ...
  10. math

    1. Write the statement in parentheses as a conditional and provide the truth value (2 points). "An angle that measures 90° is a right angle." 2. Write the statement in parentheses as a converse and provide the truth value (2 points). "An angle that measures ...
  11. Chemistry

    Write a net ionic equation for the overall reaction that occurs when aqueous solutions of potassium hydroxide and oxalic acid (H2C2O4) are combined.
  12. Music

    I want to make sure these answers are right. The answers are put between two stars(*). 1. The overture to A Midsummer Night's Dream is a one-movement work A. famous for the interplay of piano, violin, and cello. B. known for the massive sound of the orchestra. *C. praised ...
  13. Physics

    From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. As the drawing shows, the bullet puts a hole in a window of another building and hits the wall that faces the window. (y = 0.42 m, and x = 6.4 m.) Using ...
  14. Physics

    I see how the magnitudes and directions will be the same,I just don't understand why I'm getting the numbers wrong.
  15. Physics

    As preparation for this problem, review Conceptual Example 10. The drawing shows two planes each about to drop an empty fuel tank. At the moment of release each plane has the same speed of 140 m/s, and each tank is at the same height of 4.00 km above the ground. Although the ...
  16. Physics

    I figured it out!
  17. Physics

    A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's initial velocity and acceleration are v0x = +0.8 m/s and ax = +0.9 m/s2. The y components of the puck's initial velocity and acceleration are ...
  18. Physics

    A Boeing 747 "Jumbo Jet" has a length of 59.7 m. The runway on which the plane lands intersects another runway. The width of the intersection is 25.0 m. The plane decelerates through the intersection at a rate of 5.0 m/s2 and clears it with a final speed of 29 m/s. ...
  19. Electrostática

    A linear charge lies on the y-z Plane. Find the electric Flux passing throught the Plane extending from 0 to 1.0m I nerd th is problem solve analytical and in matlab
  20. math

    I don't f***ing know
  21. Physics, science

    a car travels 45 km in 1 hour. in each of the next 2 hours, it travels 78 km. what is the average speed of the car?
  22. Algebra

    the y-value is four more than twice the x-value
  23. math

    is is 15/3 thetefore5 pizzas?
  24. Art

    the correct answer is c
  25. MATH HELP

    5-6 times
  26. calc

    use green's theorem to evaluate the integral of x^2dy where C is the boundary of the rectangle with vertices (0,0),(2,0),(2,3),(0,3) oriented counterclockwise. the answer is 12. can someone please explain
  27. calc urgent

    let P be the portion of the disk x^2 + y^2 <= 1, lying in the first quadrant. having mass density of p=x, if the mass of P is 1/3 , find the y coordinate of the center of mass of P. the answer is 3/8
  28. Statistics

    also why is X(bar) = E[X] false. Because i thought they both go to mu??
  29. Statistics

    why is this sentence false. a statistic is an event computed from a population.
  30. algebra

    The Jaspers collect nickels, dimes, and quarters in a jar. When they count the change in the jar, there are twice as many nickels as there are quarters. If there is $15.30 in dimes and $74.80 in all, how many quarters are there. Please include an equation and steps
  31. statistics

    A 4 to 7 month old baby sleeps an average of 14 hours per day. At this age, babies sleep patterns follow normal distribution with the standard deviation of 1.6 a) is it unusual for a baby to sleep under 12 hours a day? b) In a random sample of 10 babies of this age,find the ...
  32. statistics

    A 4 to 7 month old baby sleeps an average of 14 hours per day. At this age, babies sleep patterns follow normal distribution with the standard deviation of 1.6 a) is it unusual for a baby to sleep under 12 hours aday? b) In a random sample of 10 babies of this age,find the ...
  33. Geography

    How does location affect climate?
  34. math

    why are 10.6 the same as 10.60?
  35. physics

    The oscillator that generates a wave completes 47 vibrations in 29.2 s. A given crest of the wave travels 382 cm along the rope in a time period of 10.3 s. What is the wavelength?
  36. Math!!!!!

    One lap around a track is one-eighth of a mile. A horse ran a distance of 11 laps in 3 minutes and 30 seconds. What was the horses average speed in miles per minute.
  37. English

    Consider both Hamlin Garland's "The Return of a Private" and Mark Twain's "The Notorious Jumping Frog of Calaveras County" as works of regionalist fiction. In a response of at least two paragraphs, compare and contrast these stories as examples of ...
  38. ALGEBRA

    Thank you so very much!
  39. ALGEBRA

    8^1/3 / 64^1/3
  40. algebra I

    a rectangle has a perimeter of 26 cm and one of its sides has a length of 5cm sketch the rectangle and label all of its side lengths
  41. statistics

    A horse race has 14 entries and one person owns 5 of those horses...
  42. Math

    A spool contains 9 meters of ribbon. How many 0.225-meter pieces of ribbon can be cut from the spool?
  43. math

    find the solution of the following system of equations x-y=0 x+y=4
  44. math

    A spherical water tank holds 15000ft^3. What is the diameter of the tank? Use V=pie/6*d^3
  45. English

    i need that answer!!!!
  46. English

    Idk that one ^ :/
  47. Chemistry

    22.) The molar heats of fusion and vaporization for water are 6.02 kJ/mol and 40.6 kJ/mol, respectively, and the specific heat capacity of liquid water is 4.18 J/gC. (1) What quantity of heat is required to melt 25.0 g of ice at 0C? (2) What quantity of heat is required to ...
  48. math

    i have a garden 22meters long and 14 meters wide how do i find the area ana the perimeter
  49. math 4th grade

    I don't know
  50. Physics PLEASE HELP!

    A spring with an unstrained length of 0.076 m and a spring constant of 2.6 N/m hangs vertically downward from the ceiling. A uniform electric field directed vertically upward fills the region containing the spring. A sphere with a mass of 5.09 10-3 kg and a net charge of +6.5...
  51. Math

    what is the answer
  52. math

    dara has 5 coins in her purse the coins total 40 cents
  53. Accounting

    good such as milk bread and chesse would problably be costed using what method of inventory costing
  54. Math (Ms. Sue Please help!)

    can you help me
  55. Math

    There are 18 bottlenose dolphins at an aquarium. One sixth of the bottlenose dolphins are not adults. How many of the bottlenose dolphins are not adults?
  56. Math

    six friends share 5 small pizzas. Each friend first eats half of a pizza. How much more pizza does each friend need to eat to finish all the pizzas and share them equally?
  57. pre cal

    For a given right triangle, angle A = 61± and side b = 39 feet. What is the length of side c to the nearest foot?
  58. Tobin School

    the plane goes 700 miles an hour . The car goes 50 miles an hour . How many times faster than the car is the plane .
  59. Biology

    I need to make a cell membrane model out of a tissue box. Can you help me? I need ideas and more information about it.
  60. math

    what is multiplication sentence in exponent and base
  61. English

    Which one does not belong o? On April. December. November. June
  62. grammar

    Please turn of lights when you go to sleep.
  63. factor the trinomial by grouping

    15x^3-9x^2-6x Can someone please show me how to factor completely.. trying to learn how to do factoring
  64. please help math factor trinomial

    Thank you soo much.. I have a lot of trouble with factoring
  65. please help math factor trinomial

    y^3-13y^2+36y Can someone please show me step by step that way I can understand. Thank you
  66. Algebra HELP!

    If a sum of money is deposited in a savings account that is paying x percent annual interest (expressed as a decimal), then this sum of money increased by a factor of (1+x)^3 after 3 years. A. multiply this expression B. Evaluate the polynomial expression found in part (A) for...
  67. Math Algebra Multiply

    (a+3)^3 is answer: 3a+9a+9 12a+9
  68. SUBTRACT POLYNOMIALS

    (9X+8)-(-7X+9) IS ANSWER: 16X-1?
  69. Add the Polynomials

    (9X^3+2X^2-7)+(2X^3-2X+9) IS ANSWER: 11X^3+2X^2-2X+2
  70. Math Algebra

    Determine whether the expression is a polynomial, if it is state how many terms and variables the polynomial contains. then state the degree 7x^2+3x+3
  71. Algebra Divide

    x^8+x^5/x Please help im stuck
  72. Math Algebra Find the Product

    (4y+5)(4y-5) 16y^2-20y+20y-25 16y^2-25 Am I correct
  73. math multiply and simplify

    12s^2-9s-4s+3 = 12s^2-6s+3
  74. math multiply

    Thank you
  75. math multiply

    8xy(x+y) is answer 8x^2y+8xy^2
  76. math algebra

    yay! Thank you
  77. math algebra

    multiply and simplify (4-z)z =4z-zsquare? can you please let me know if I am correct
  78. Math add the polynomials

    so its 4a^2b^8?
  79. Math add the polynomials

    ahh so the 7ab cancels because of the -7ab so answer is 5a²b4. I thought it was 4a4b8 Thank you
  80. Math add the polynomials

    (7ab+4a2b4)+(a2b4-7ab) The 2 and 4 are on top of the a and b. (sqare #)
  81. Math

    Determine whether the expression is a polynomial, if it is state how many terms and variables the polynomial contains. state the degree -4x-2y-1 the -2 and -1 are above the Y
  82. algebra

    Determine whether the expression is a polynomial. If is is state how many terms and variables the polynomial contains. State the degree -7-1/4x
  83. Comm 215

    Thank you!
  84. Comm 215

    Thank you! So much 28. Choose the appropriate irregular verb form in the following sentence. I was surprised by how successful Janice ____. __ become __ becomed _x_ became __had became
  85. Comm 215

    Please guideme to which ones are wrong.. Thank you Grammar Part I: True or False 1. The following word group is a FRAGMENT: That movie, one of my favorites. x_True __False 2. The following word group is a FRAGMENT: The local baseball team, needing a good pitcher most of all. ...
  86. Rydberg equation

    λ for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value using n1 = 2, and n2 = 6.
  87. chemistry

    λ for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value using n1 = 2, and n2 = 6.
  88. chemistry

    A H atom absorbs a photon with a wavelength of 9.50 × 10^1 nm. If the energy of the final state of the H atom was -8.72 × 10^(-20) J, calculate the energy of the initial state. Express answer in scientific notation
  89. chemistry

    thank you very much that was great help..
  90. chemistry

    A light photon with a frequency of at least 0.0906 x 10^16 Hz is required to split apart hydrogen bromide according to the equation: HBr(g) --> H(g) + Br(g) Calculate the energy (kJ) required to break apart a mole of hydrogen bromide. Express answer in scientific notation.
  91. chemistry

    A light photon with a frequency of at least 0.0906 ~ 1016 Hz is required to split apart hydrogen bromide according to the equation: HBr(g) ¨ H(g) + Br(g) Calculate the energy (kJ) required to break apart a mole of hydrogen bromide. Express answer in scientific ...
  92. chemistry

    use the equation d=m/v
  93. Math

    ∫sin^5 t/cos^2 t dt
  94. chemistry(balance equation)

    C2H6 + O2 --> CO2 = H2O
  95. Business Finance

    Meg's pension plan is an annuity with a guaranteed return of 3% per year (compounded quarterly). She would like to retire with a pension of $30,000 per quarter for 10 years. If she works 22 years before retiring, how much money must she and her employer deposit each quarter?
  96. English

    Hi, I'm having trouble understanding this and relating it back to my area of study, "belonging"- "In this regard, Emily Dickinson's poetry repeatedly echoes Voegelin's analyses of consciousness and existence. For Emily Dickinson, to be hman is to BE...
  97. physics

    A 14 g bullet is fired into a 120 g wooden block initially at rest on a horizontal surface. The acceleration of gravity is 9.8 m/s^2 . After impact, the block slides 6.97 m before coming to rest.If the coefficient of friction between block and surface is 0.568 , ...
  98. english

    which are stressed syllables in not lured by any cheat of birth
  99. Math

    In the equation ax^2+bx+c=0, one root is the square of the other. Without solving the equation, prove that c(a-b)^3=a(c-b)^3
  100. Math

    If a,b,c are the roots of x^3-2x^2+x-3=0, find the value of (b+c)(c+a)(a+b)
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