Posts by Wayne

Total # Posts: 165

  1. math

    You randomly draw marbles from a bag containing both blue and green marbles, without replacing the marbles between draws. If B=drawing a blue marble and G=drawing a green marble, which represents the probability of drawing a blue marble first and a green marble second? A. P(B...
  2. math

    Suppose a bag contains 3 blue and 2 green marbles. You randomly draw 2 marbles without replacement. If B=drawing a blue marble and G=drawing a green marble, which event does NOT have the same probability as the others? Bag A. GG B. BB C. GB D. BG
  3. Math help please!

    Just reread this post. Yes, a typo is the least of it. Please reread your work before submitting. Now it makes sense.
  4. Math help please!

    This is not well written. It results in: 24+5(x=13) 24 +5x = 65 5x = 65 - 24 5x = 21 x = 21/5 Like I write above, this is not well written and I've never see an equation like it - ever. It may well be a trick question. Ask the writer of this trash what's meant.
  5. algebra

    -0.11 < 0 < 0.67 < 0.9 This is correct. Negative numbers are indeed less than zero. Think of your check book, or of owing someone money when you're broke.
  6. math

    how long take to make 127000 grow into 425000
  7. riddle

    Hahaha! You people are trying to solve the kiss 100 joke. The answer ain here though.
  8. Trigonometry

    Find all solutions of the equation Tan(theta - 30 degrees)= -5 in interval 0 - 360 Book gives answers for theta of 131.3 and 311.3
  9. Trigonometry

    Find all solutions of the equation in the interval(0-360) Tan(0-30degrees)= -5
  10. math

    A positive two-digits number is such that the product of the digits is 24.When the digits are reversed,the number formed is greater than the original number by 18.Find the number
  11. physics

    a boy uses a sling shot to launch a rock upward with a velocity of 30m/s how long does it take to reach a height of 20 m what maximum height does the rock reach, what is the velocity of the rock at this height, what is the velocity of the rock just before it lands
  12. algebra 1

    5 field goals (5*2=10) 2 free throws (1*2=2). 10+2=12. That's just one combination (possibility)
  13. Physics

    A fan is rotating at 50 rad/s. When turned off it slows down to a stop in 90 seconds. How many rev's does the fan make in coming to a stop?
  14. Pre Cal

    x 2 + y 2 = 0
  15. algebra

    Find the distance d (P1, P2) between the points P1 and P2 P1 = (−4, 4) ; P2 = (1, 6) wayne
  16. algebra

    Find the distance d (P1, P2) between the points P1 and P2 P1 = (−4, 4) ; P2 = (1, 6) wayne
  17. Physics

    Vehicle A is 819.017 feet behind vehicle B. Vehicle A is traveling at 93.602fps and vehicle B is traveling at 44fps. How long until vehicle A catches vehicle B?
  18. Grade 5 math

    185+205+240+195+165 = 990 min 240-165 = 75 min
  19. Physics

    I'm not getting it, can it not be solved with info given. The difference between the two speeds is .247. .247*60*60/5280 = 0.16mph. vehicle per near stopped.
  20. Physics

    speed does not match the distance, let me rethink....
  21. Physics

    Vehicle A is traveling at 93.602fps and is 819.017 feet behind vehicle B. Vehicle A takes 8.75 seconds to overtake vehicle B. How fast is vehicle B traveling?
  22. math

    x=87.71
  23. math

    The perimeter of the base of a pentagonal prism is 45 cm. What is the width of the rectangular side of that prism?
  24. Maths

    If a unit is 465mm x 320mm how much will it cost for one unit if its priced at $25 per metre squared
  25. pseudocode

    Create a class named Year that contains data fields to hold the number of months in a year and the number of days in a year. Include a constructor that sets the number of months to 12 and the number of days to 365, and get and set methods for each field. b. Design an ...
  26. computer code

    Create a Flowchart and pseudocode. Create a class whose main method creates three arrays. The first array will contain five kinds of flowers - petunia, pansy, rose, violet, and carnation. The second array will contain the cost of each flower, respectively, 50 cents, 75 cents...
  27. Flowcharts and pseudocode

    Create a class whose main method creates three arrays. The first array will contain five kinds of flowers - petunia, pansy, rose, violet, and carnation. The second array will contain the cost of each flower, respectively, 50 cents, 75 cents, $1.50, 50 cents, and 80 cents per ...
  28. physics

    A bug starts walking away from the top of a spherical ball of ice and will start to slip when the normal force exerted on it drops to 1/2 of its weight. If the ice ball has a diameter of 34 cm, how far can the bug walk before it begins to slip?
  29. Physics

    A model helicopter and its load have a combined mass of 3.5 kg. Find the upward average force, in Newtons, exerted by the air if the helicopter is originally moving downward at 10 m/s and is brought to rest with constant acceleration in a distance of 50 m.
  30. Programming Logic and Design

    The Romance World Cruise Line provides special gifts and celebrations for passengers who are newlyweds, as well as for those who have been married more than 40 years. Design a flowchart and pseudocode for a program that accepts a couple's last name, ship cabin number, and ...
  31. BUS 330

    What three component parts are essential to a value proposition
  32. Fluid Mechanics

    Hello Can someone can give me good links where i can find the: 1)domestic 2)industrial applications of fluid mechanics ? Tnx a lot.
  33. algebra

    If 182 lbs of force keeps a 1500 lb car from skidding on a curve of radius 500 ft at 30 mph, what force would keep the same car from skidding on a curve of radius 800 ft at 45 mph
  34. Science

    If a nuclide has a decay constant of 10^-6 s-1 what is its half life ??? I think it is 0.693 / 10^-6 = 693000 or 6.93 x 10^5 Is this right ...
  35. physics

    If a nuclide has a decay constant of 10^-6 s-1 what is its half life ??? I think it is 0.693 / 10^-6 = 693000 or 6.93 x 10^5 Is this right ...
  36. Algebra

    Which of the following shows the expression written with a single radical? a) 3*2^(1/2); b) 3*2^(1/4); c) 6*2^(1/2); d) 6*2^(1/4)? The book says that the answer is d), but I do not understand why. They all look like single radicals to me!
  37. chemistry

    arrange the following 0.10M solutions in order of increasing (H+). NaBr NH4Cl LiCn
  38. Economic

    Why might a profitable motel shut down in the long run if the land on which it is located becomes extremely valuable due to surrounding economic development? What kinds of costs are involved in making a decision to shut down?
  39. statistics

    supply function p = 15x-900 demand function p = 2x + 530 find the point of equilibrium
  40. Physics

    What must the charge (sign and magnitude) of a particle of mass 1.48g be for it to remain stationary when placed in a downward-directed electric field of magnitude 670N/C ? What is the magnitude of an electric field in which the electric force on a proton is equal in magnitude...
  41. Maths / physics

    Thank you ....
  42. Maths / physics

    Calculate the rest mass (In grams) of an object whose rest energy is equal to the energy released by a tonne of tnt the energy liberated by 1 g of tnt = 4kJ Rest energy = moc 2 1 tonne of tnt equals 10^6 x 4kJ = 4 x 10^6 kJ x (3.0^8)sqrd = 3.6 x 10^23kJ is this right ?? i ...
  43. Math

    Sandra scored 60 on a test. The test scores were normally distributed, with a mean of 50 and a standard deviation of 10? Which of the following percentile ranges would contain Sandra's score? (a) 35-49 (b) 50-64 (c) 65-79 (d) 80-95
  44. Math

    Sandra scored 60 on a test. The test scores were normally distributed, with a mean of 50 and a standard deviation of 10? What would Sandra's score be?
  45. physical science

    you do 16,000 j of work on a 45 kg box intitally going 11.8 m/s. How fast is it going now?
  46. math

    General solution Cos^2 +3sin= -3
  47. Pre-Calculus 11

    In Triangle DEF, DE = 8cm and Angle D= 60 degrees. When EF = 7 cm, how many triangles are possible?
  48. Pre-Calculus 11

    In Triangle DEF, DE = 11cm and EF = 9 cm. For which measure of angle D is it possible to draw two scalene triangles.
  49. Science

    Using two or three well-developed paragraphs, describe how energy is transferred from the sun to producers and on to consumers. Provide at least one example.
  50. math

    Sarah is 8, Ricky is 13 age now age 3 yrs ago Sara x x - 3 ricky x + 5 (x+5)-3 so (x+5-3)= 2*(x-3) x+2=2x-6 x=8
  51. math

    no solutions, or empty set solve both equations for y: y >= -1.5x + 20 y <= -1.5x + 42.5 Same slope with different y-intercepts indicates parallel lines; Graph both, which shows the solution set: solutions for 1st equation are above the line, and solutions for 2nd ...
  52. math

    where's the rest of the problem?
  53. math

    Do you know how to use parentheses? I don't know if I should read your problem as written or how I think you intended it to be written. Ex: 5x divided by (x-2) would be written as: 5x/(x-2), not 5x/x-2.
  54. math

    It's not clear what you are asking. If you are dividing 2 by quantity [(1-x)*(1+x)], then your answer is sqrt3/3; where x does not equal 1 or -1 (that would induce division by 0).
  55. math

    cancel the y's, so answer is 7/(4y-1)
  56. Math

    Let x = days worked Let 30 - x = days not worked, so $5.5 * x - $6.6 * (30 - x) = 0 days worked = 16 and 4/11 days days not worked = 13 and 7/11 days. Goofy answers, as far as I'm concerned!
  57. geometry

    two solutions is correct, but the equation for a circle is: (x-a)^2 + (y-b)^2 = r^2; where (a, b) is the center of the circle, so (x-0)^2 + (y-1)^2 = 9 The points of intersection are: (1.836377228, 3.372281323) and (-1.836377228, -1.372281323)
  58. Maths

    18; for the six faces, the sums of opposing sides are 18 and 10, 14 and 14, and 18 and 10. I numbered the vertices as such: plane 7, 6, 1, 4; corresponding plane 0, 5, 2, 3
  59. math

    one pound; Each bag weighs 2 pounds. If the bag is 2/3's full, one additional pound will fill it.
  60. math

    d) 20; transitive property, so 2v + 10 = 1.6v + 18
  61. math

    a) (-4, 0); Find the slope of each set of points. Set up both equations, using the slope for each, in the form y = mx + b. Insert each slope. Use a point from each equation to determine the y-int for each (-4 and 8, respectively). Solve using systems of equations.
  62. Alg 1

    You have the correct answer. Use your calculator for your choices and see which one gives you the same answer: both 1st and last answers give the same answer, but the last one is the correct answer. By the way, you are correct in using the Pythagorean Theorem, which gives hyp...
  63. math

    Did you draw a picture? The distance between opposite corners of the walking path (rectangle, in this case) would be the hypotenuse of a right triangle. Thus, we can use the Pythagorean Theorem: HYP^2 = leg^2 + leg^2 Let x = length; 7x = width, so HYP^2 = x^2 + (7x)^2 HYP^2 = ...
  64. math

    Is this written correctly? Usually the height is longer than the width! Again, draw a picture. Another right triangle. Let x = height; let 2x = width. Using Pythagorean Theorem: hyp^2 = x^2 + (2x)^2 hyp^2 = x^2 + 4x^2 hyp^2 = 5x^2 take square root of each side: hyp = x * sqrt(5)
  65. Math

    Cynthia. Find the unit rate of each. 15 / 12 = 1.25 miles per minute. 26 / 20 = 1.3 miles per minute. The 1.3 is faster which means will arrive first.
  66. math

    There is a formula, called the standard future value formula: 54 * (1 + .025)^10 = future value = $69.12
  67. math

    Today it costs $54 to fill tank. In one year (per cent increase problem): (x - 54)/54 = .025, so x = $55.35 in the next year: (x - $55.35)/$55.35 = .025, so x = $56.73 Do this 8 more times, and you will get your answer: $69.12 I used an Excel worksheet to generate the answer. ...
  68. ALGEBRA!....

    I mean 23^2 + 96 = 25^2
  69. ALGEBRA!....

    Got it! Initial population is 23^2, which = 529. 23^2 + 48 = 577 = 576 + 1, so 23^2 + 48 = 24^2 + 1, and 23^2 + 96 = 625, so 23^2 = 25^2 Did it by exhaustion with Excel. Check back later if I can do it algebraicly!
  70. Math: Finding m<A

    def of similar triangles: corresponding angles are equal. I always draw a picture. angle A = angle D = 45'
  71. Geoometry Help: Find EF

    You'll get there!
  72. Geoometry Help: Find EF

    EF = 32 Corresponding sides of similar triangles are proportional. Draw a picture. Make a proportion: 36/24 = 48/EF
  73. Geometry: Student Correction (Stuck)

    Need the setup info to verify whether the proportion is set up correctly. Solution of this proportion: x = (6 x 5)/4, so x = 7.5
  74. geometry

    Not enough information.
  75. algebra

    No difference, as long as you're consistent.
  76. algebra

    j:(4,0) is the only point that makes both statements true. To solve, substitute the values into the inequalities to determine whether it makes a true statement: 1) 0 < (1/2)* 4 + 4 0 < 6, which is a true statement 2) 0 > -(4) + 1 0 > -3, which is a true statement
  77. maths

    not enough information
  78. math

    First thing I do is draw a picture. Sur Area of the four walls = 2 x (height of wall x width) + 2 x (height of wall x length), which yields: 108 = 2 x (h x 5) + 2 x (h x 4). So height = 6 meters
  79. Maths

    ab = 75 Archaic solution: only possibilities for ab are 01 through 99. Eliminate all of those not divisible by 5, which leaves: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55. 60, 65, 70, 75, 80, 85, 90, and 95. Eliminate those not divisible by 3 (divisibility rule for 3) , which ...
  80. Math

    Let x=length; 70-x = breadth (x + 15) =(3)*((70-x) - 5) x + 15 = 3 * (65 - x) x + 15 = 195 - 3x 4x = 180 x = 45 70 - x = 25
  81. Geometry

    SA(cyl)=(Circumference*height)+ Area of Top + Area of Bottom: SA = (pi*9*24)+ 2*(pi*4.5^2)
  82. Algebra

    solving for 7t^2-14t+10>1000, we get: 7t^2-14t-990>0 use quadratic equation to get: t> (7+ sqrt(6979))/7; thus: t> ~12.93 years
  83. algebra1

    solving for 7t^2-14t+10>1000, we get: 7t^2-14t-990>0 use quadratic equation to get: t> (7+ sqrt(6979))/7; thus: t> ~12.93 years
  84. Math

    His initial speed was 68mph. Using Distance = Rate * Time, we get: Let r = speed for 6 hours, r-20 = speed for 5 hours, so: 648 = 6r + 5*(r - 20). Hope this wasn't in Wi because the max legal speed limit is 65mph!
  85. college algebra

    I apologize! I misread your equation. Multiply through by x^2 gives: 9x^2-8x-2=0. Use Quadratic Formula to get two solutions: (8+sqrt(136))/18 and (8-sqrt(136))/18. I checked, and both work!
  86. college algebra

    multiply everything by x^2-9, which gives you: -5(x+3)-3(x-3)=2 Have fun!
  87. math

    New point: (20, -28). Slope of line going through the origin and (5, -7) is -7/5, which makes the radius of that circle sq rt of 74, or (74)^(1/2). The new radius will be 4*(74)^(1/2). Assuming that the length of the x coordinate (and Y!) is proportional to the radius, that ...
  88. Algebra

    Please solve as polynomial to third degree: the product of three consecutive odd numbers is 6,783. What are the numbers? The solution being 17, 19, and 21, what are those numbers when considering: x*(x+2)*(x+4)=6,783? Multiplied out: x^3+6*x^2+8*x-6,783=0 What are the roots? ...
  89. math

    Factor(unfoil) the area to get: (2x-5)* (4x+9). When you divide that by the height, the result is the length of the base: (2x-5) Not sure if you're solving for x, but I don't think that there's enough information. Let me know if this helps you!
  90. Math

    factor out a 2: =(2x-5)(3x+2)-(2x-5)(2)(5x+4) factor out (2x-5): =(2x-5)[(3x+2)-2(5x+4)] simplify: =(2x-5)(3x+2-10x-8) =(2x-5)(-7x-6) and, if you want: =-14x^2+23x+30
  91. Math

    multiply the quantities of each list: 3*2*4*3=72 Hope he brought his cell phone along!
  92. probability math

    bill is on the school archery team. the target has a center bull's-eye and two rings around the bull's-eye. the table gives the probabilities of each outcome. what is the probability that bill will get the next arrow in the inner or outer ring?express your answer as a ...
  93. probability math

    bill is on the school archery team. the target has a center bull's-eye and two rings around the bull's-eye. the table gives the probabilities of each outcome. what is the probability that bill will get the next arrow in the inner or outer ring?express your answer as a ...
  94. fractions

    3/8 + 3/4 =
  95. geometry

    0.665
  96. geometry

    How many cubic meters of cement are required to cover a walkway 7 m long, 0.95 wide, and 10 cm deep?
  97. geometry

    502.4
  98. geometry

    The area of a circle 200mm in diameter is approximately how many times greater than the area of a circle 40mm in diameter?
  99. ratios

    A mother wants to divide $680.00 among her children according to the ratio 2:4:6. The shares would be?
  100. Geometry

    1050m
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