Posts by George

Total # Posts: 1,133

  1. Math

    A man gets a job with a salary of 37300 dollars a year. He is promised a 2550 dollars raise each subsequent year. His total earning for a 7-year period is
  2. Math

    For the arithmetic sequence with given first term 4 and common difference 4: its nth term is __________ its 10-th term is ________
  3. science

    The orbital radii of four planets in our solar system are shown in the following table. Orbital Radii Planet Orbital Radii (AU) W 5.2 X 0.72 Y 1.0 Z 19.1 Which planet is likely to experience the highest temperature? W X Y Z I think it is B.x but I am not for sure
  4. Math

    A=0,4 ,B=-2,0 Find the vector AB in ?2?
  5. 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 :
  6. Math

    For what value of x are 16i-12j+4k and xi-(x-1)j+k parallel?
  7. 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 :
  8. Math

    a)A man swims northeast at 5mph. Give a vector representing his velocity b)He now swims a river the same velocity relative to still water; the river's current flows north at 1.2 mph. What is the velocity relative to the riverbed?
  9. Math

    Find all vectors v in 2 dimensions having ||v ||=5 where the i -component of v is 3i vectors:
  10. Math

    Find a unit vector u in the direction opposite of ??3,?9,?9?.
  11. Math

    For what value(s) of t does the equality ?t^3?12t,0.25t^2+4?=?0,7? hold true? t=
  12. Calculus

    Show that f(x) = x^3 and g(x) = 200x^3 grow at the same rate.
  13. math 11

    Michaela has up to $20 to spend on bottled water and orange juice for a group hike. It cost $2 for each bottle of water and $ 4 for each bottle pdf orange juice. write an inequality statement of this situation? 2x +4y< or equal to 20 Y < or equal to-1/2x +5 once this is ...
  14. math 11

    A pilot of a downed airplane fires the emergency flare into the sky. The path of the flare is modelled by the equation h=-0.096(d-25)^2 +60 where h is the height of the flare in meters when its horizontal distance from where it was propelled is d meters. An emergency ...
  15. math

    a)Find the time required to double the amount of an investment at an interest rate k, compounded continuously. b) Find the time required to double an investment at continuous rate of 6%.
  16. math

    Find the inverse Function? J(x)=2^x/(1+2^x)
  17. differential Equations

    laplace transform of f(t) = t sin (at) use integration by parts
  18. geometry

    These polygons are similar but not drawn to scale & Are the two triangles similar how do you know
  19. math

    Suppose Taylor win $18000 in a lottery. If she invests half in a CD earning 4.2 % annual interest compounded quarterly and the rest in saving account earning 3.7% annual interest compounded monthly . How much money does she have after 10 years
  20. math

    You place $11,000 in an account. You hope to have $23,000 in the account after 15 years. What effective annual yield is needed to accomplish this?
  21. math

    The population of a colony of rabbits grows exponentially. The colony begins with 5 rabbits; 5 years later there are 310 rabbits. (a) Express the population of the colony of rabbits, P , as a function of time, t , in years. (b) Use the graph to estimate how long it takes for ...
  22. math

    Suppose y , the number of cases of a disease, is reduced by 11% per year. (a) If there are initially 10,000 cases, express y as a function of t , the number of years elapsed. (b) How many cases will there be 6 years from now? (c) How long does it take to reduce the number of ...
  23. math

    Find two numbers x, and y that add to 30, and for which 2x^2 +5y^2 is a minimum.
  24. Math 115

    Create a piecewise function of the following scenario where Upper D left-parenthesis t right-parenthesis is the total distance walked (in miles) as a function of time t (in minutes): “You begin a walk from your home at a fast pace of 3 miles per hour for 30 minutes. You ...
  25. Math 115

    Create a piecewise function of the following scenario where Upper D left-parenthesis t right-parenthesis is the total distance walked (in miles) as a function of time t (in minutes): “You begin a walk from your home at a fast pace of 3 miles per hour for 30 minutes. You ...
  26. differential Equations

    Find general solution [t - sqrt(ty) ] dy/dt = y
  27. Differential Equations

    Find general solution. 2ty dy/dt = 3y^2 - t^2
  28. differential Equations

    solve initial value problem t dy/dt = y + sqrt(t^2 + y^2) , y(1)=0
  29. differential Equations

    solve the initial value problem and find the interval of existence... cos(y) dy/dt = -t sin(y)/ (1+t^2) , y(1)=pi/2
  30. AP Calculus AB Part 2

    The Riemann sum, the limit as the maximum of delta x sub i goes to infinity of the summation from i equals 1 to n of f of the quantity x star sub i times delta x sub i , is equivalent to the limit as n goes to infinity of the summation from i equals 1 to n of f of the quantity...
  31. Math

    6.7 miles
  32. Chemistry

    Find the amount of mole solute in solution of concentration 2.5moldm^-3 and volume of 500cm^3 Hint to solve Amount = C x V
  33. math

    hi, one question i have is for the following problem:"Two families meet at a park for a picnic. At the end of the day, they part ways. Family A leaves 15 mins after family B and travels east at an average speed of 42mph; while, family b travels west at an average speed of...
  34. College Algebra

    8 POUNDS OF ALMONDS
  35. College Physics

    A mass m is acted on by a resultant force of 28.6 N in the upward direction. The acceleration of the mass is 5.72 m/sec2 upward. What is the mass?
  36. math

    1/(z+3)
  37. math

    Find f(infinity) for the complex function: 1/z+3
  38. Physics

    A charge of -17 nC is on the X axis at the origin. A charge of -24 nC is on the X axis at 11 cm. Find the electric field (magnitude and direction) at 19 cm on the X axis. I believe to solve this problem, the equation E = kC (q1/r1^2) must be used for each of the charges ...
  39. English

    Many plays are written about family situations because why?
  40. Physics

    A ray of light with wavelength 589 nm passes through an unknown material with a velocity of 1.94 x 10^8 m/s. What is the material? I think this problem has something to do with Snell's law, but there is no given angle of refraction so I don't know how to solve it. ...
  41. Math

    Describe the cross sections formed as the plane intersects the interior of the sphere but moves away from the center
  42. Pre calc

    The population of a Midwestern city decays exponentially. If the population decreased from 900,000 to 800,000 from 2003 to 2005, what will be the population in 2008? I thought it was 7542 but it is wrong can someone please help me thank you
  43. algebra

    a ladder is placed 5ft away from a house. the ladder comes up to 12ft on the side of the house. how long is the ladder?
  44. Algebra

    Whats p>100?
  45. Social Studies 6 B

    9:51 is correct thanks!
  46. riddle

    Greetings
  47. Physics

    A piece of metal of volume 250 centimetre cube floats in water when 85 percent of its volume is under water.Calculate the upthrust on the metal. [pw=1.0gcm^-3]
  48. maths

    Steve i had written that same answer in my exam and had gotten it wrong?????
  49. Linear Relations MATHS

    Thanks a lot Damon
  50. Linear Relations MATHS

    The equation of AB is : y = -13x/10 + 4/5 The equation of the perpendicular bisector of AB is: y = 10x/13 - 33/26 The distance between A and B is root(269) The Midpoint AB is (1,-0.5) Above Answers are all correct. How to find the coordinates of P?
  51. Linear Relations MATHS

    If A = (-4,6) and B = (6,-7), find: (a) the coordinates of the point P on the line segment AB such that AP:Pb = 3:1 (b) the coordinates of the point P on the line AB such that AP:AB = 3:1 and P is closer to point B than to point A
  52. Geometry

    Hi I was having some problem with this question, its been a while since I had been in geometry. I think you foil, but Im not sure. Solve for X. 2(x+4)(x+3)= 3(x+2)(x-1)
  53. precalculus

    Given: r = 4/-2-6sintheta What type of conic does this represent? ________________________________________ Circle Ellipse Hyperbola Parabola
  54. Math

    Movie starts at 5:20 it is a 1 hour and 50 minutes long. What time does the movie end?
  55. Science

    I need help with early earth unit test
  56. precalculus

    how do you shift y=ax^2 by (h,k)
  57. precalculus

    What does the equation y = a(x - h)2 + k, a ? 0 represent?
  58. Physics

    Two bumper cars crash head on in an elastic collision. One car #1 was moving 2.5 m/s west and car #2 was moving 3.7 m/s east. Each car has a mass of 254 kg. What are the final velocities after the collision? I think this problem is supposed to be solved with m1v1, i + m2v2, i...
  59. Physics

    Two bumper cars crash head on in an elastic collision. One car #1 was moving 2.5 m/s west and car #2 was moving 3.7 m/s east. Each car has a mass of 254 kg. What are the final velocities after the collision? I think this problem is supposed to be solved with m1v1, i + m2v2, i...
  60. geometry

    construct an isosceles triangle and construct Sierpinksi's triangle. Repeat the pattern three times. What segment of a triangle does this pattern make use of over and over again?
  61. Physics (for Damon)

    Given the following about a spring: mass = 20.0 kg height initial = 5.25 m (above the ground) height final = 2.17 m (above the ground with the mass attached) delta y initial = 0.00 m I have found the following: Spring constant: 63.7N It would take 576J to return the object to ...
  62. Physics

    Given the following about a spring: mass = 20.0 kg height initial = 5.25 m (above the ground) height final = 2.17 m (above the ground with the mass attached) delta y initial = 0.00 m There are several questions I must answer from this. 1. What is the value of the spring ...
  63. Physics

    Given the following about a spring: mass = 20.0 kg height initial = 5.25 m (above the ground) height final = 2.17 m (above the ground with the mass attached) delta y initial = 0.00 m There are several questions I must answer from this. 1. What is the value of the spring ...
  64. management

    examine the impact of one's family background and setting to work place behaviour?
  65. BUSINESS MANAGEMENT

    examine the impact of one's family background and setting to work place behaviour?
  66. principle of management

    examine the impact of one's family background and setting to work place behaviour?
  67. Maths

    1. For what values of a will the straight line y=ax+1 have ONE intersection with the parabola y=-x^2-x-8?
  68. Geometry

    The lengths of the three sides of an isosceles triangle are 24", 24", and 14". Find the measure of each length of each angle. Then find the area of the triangle.
  69. Geometry

    Once drawing the pentagon with a radius of 2, how would you figure out the side length when only knowing that the radius is 2 and when the apothem is placed it splits into a 36-60-90 triangle?
  70. Geometry

    Two buildings are separated by an alley. From a window 80 feet above the ground in one of the buildings, it can be observed that the angle of elevation to the top of the other building is 62*, and the angle of depression the the bottom of the building is 75*. Find the height, ...
  71. Physics

    If someone pushes on a box on a horizontal floor with a horizontal force of 17.8 N, but the box does not move, what is the static friction (Fs) between the box and the floor? Explain. The next question is: If the box just starts to move with a horizontal force of 29.5 N, what ...
  72. Question update 1

    In my textbook, it says Fs = -Fapplied Does this mean Fs really just equals negative 17.8 N, for the first question?
  73. Physics

    If someone pushes on a box on a horizontal floor with a horizontal force of 17.8 N, but the box does not move, what is the static friction (Fs) between the box and the floor? Explain. The next question is: If the box just starts to move with a horizontal force of 29.5 N, what ...
  74. Physics

    I am supposed to figure out if the box is moving later on in the problem set. The crate and the ramp are both wooden though. My book says the static coefficient of wood on wood is 0.4 and the kinetic coefficient of wood on wood is 0.2.
  75. Physics

    A 75.0 kg object is on an incline of 30 degrees horizontally. I have to calculate several things from this, and I need help with some of them. I have to find the following: 1. Static coefficient of friction 2. Kinetic coefficient of friction 3. Gravitational force 4. Normal ...
  76. Math

    I think 2 is b
  77. Math

    she has none = 0 juicebox
  78. English

    #1 and #5
  79. English

    yes but #5 is not grammatical
  80. math

    I think it is on the 20th of September which is Tuesday
  81. English Thesis please help

    Can someone give me an elaborate overview of what the Puritan period is about?
  82. History

    Why did the Elizabethan period end? I know that it ended with Queen Elizabeth I, but I need a more elaborate explanation of why that era ended?
  83. English

    so if a thing flies its an aircraft? If so then can you call a bird an aircraft?
  84. English

    the balloon and the helicopter can be called an aircraft but I don't know if You can call the UFO an aircraft since it is an Unidentified Flying Object
  85. Physics

    A golf ball with an initial angle of 34 degrees lands exactly 240 m down the range on a level course. a.) Neglecting air friction, what initial speed would achieve this result? b.) Using the speed determined in item a, find the maximum height reached by the ball. I was looking...
  86. Math

    If the ratio of green marbles to yellow marbles is 3:4 then how many yellow marbles are there for 8 green marbles
  87. Physics

    A train travels due east at a velocity of 85.5 km/hr. A passenger walks from the front of the train to the back at a velocity of 3.7 km/hr. What is the velocity of the passenger to an observer who is seated on a train going due west at a velocity of 64.7 km/hr? What I've ...
  88. Physics

    @Damon, just one question. Sorry, but I'm not sure where you got the 124 and 256 from.
  89. Physics

    A car heads due west on Interstate 80 going 63.0 km/hr for 2.1 hours. The car then turns and heads exactly northwest on Interstate 42 going 53 km/hr for 3.3 hours. What is the resultant displacement of the car? I've done some work on it and I have a good idea. I found the ...
  90. Physics

    A car heads due west on Interstate 80 going 63.0 km/hr for 2.1 hours. The car then turns and heads exactly northwest on Interstate 42 going 53 km/hr for 3.3 hours. What is the resultant displacement of the car?
  91. Math

    What is the difference between "Give your answer correct to two decimal places." and "Round your answers to two decimal places." ?? Are they the same thing or do the answers differ?
  92. information and technology

    c) Describe each of the computer specifications listed below i. Intel Core 2 Duo T6670 (2.2GHz,2MB L2 cache) ii. 15.6 HD Anti-Glare (1366x768) iii. 2 GB DDR3 1066 MHz 1DIMM iv. 320 GB 7200RPM v. DVD+/- RW vi. Loaded Operating system Windows 7 vii. Wireless 802.11 b/g/nm BT, ...
  93. principle of management

    whilst entrepreneurship is a panacea to the world over, the current Zimbabwean situation is different .eludicate four reasons why the situation is different
  94. Math

    week 1: $1 week 2: 2 x $1 = $2 week 3: 2 x $2 = $4 week 4: 2 x $4 = $8 week 5: 2 x $8 = $16 week 6: 2 x $16 = $32
  95. Math

    Kate's parents decided it was time to start giving her pocket money. They were not sure how much to give her so they started with $1 for the first week and doubled it every week. How many weeks until Kate gets over $20 pocket money?
  96. Economics

    Assume the total cost of production in a particular firm is #50000.00 while the fixed cost is #30000.00. The wages paid to each unit of labour is #2000.00. Calculate the unit of labour employed in this firm please what is the formula
  97. Chemistry

    How do you determine the polarity of a substance? Example?
  98. Algebra

    L=LENGHT W=WIDTH L+2w=220 L=220-2W LW=AREA A=W(L) A=W(220-2W) A=-2W^2- 2W^2 A=-2(W^2-110W+55^2-55^2) A=-2(W-55)^2+6050 W=55 L=220-55-55 =110
  99. math

    How many yards is 9000024km
  100. fin/370

    Spread the balance sheets and income statements of Lake of Egypt Marina, Inc., for 2015 and 2014. (LG3-6)
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