Popular questions and responses by sunny
  1. math

    a hall charges $30 per person for a sports banquet when 200 people attend. for every 10 extra people that attend, the hall will decrease the price by $1.50 per person. what number of people will maximize the revenue for the hall?

    asked on October 4, 2014
  2. maths

    What is missing I don't understand the connection 60,000 ,30,000, 10,000=___________?

    asked on July 21, 2020
  3. Language Arts

    1) An argumentative essay should present a clear thesis statement, provide strong evidence to support the thesis, and ______. A: address counterarguments B: repeat main points* C: include digital sources D: gather details 2) According to the Argumentive

    asked on November 28, 2016
  4. Science

    Electric bulb is Marked 60 watts 120 volt what is the resistance of filament of bulb

    asked on November 13, 2016
  5. math

    arnold has 24m of fencing to surround a garden, bounded on one side by the wall of his house. what are the dimensions of the largest rectangular garden that he can enclose? how do i solve this question please help step by step solutions please

    asked on September 27, 2014
  6. Calculus

    The product of 2 positive numbers is 48. find the value of the numbers if the sum of one of the numbers and the cube of the other is a minimum.

    asked on May 24, 2012
  7. math

    A specially made pair of dice has only one- and two-spots on the faces. One of the dice has three faces with one-spot and three faces with two-spot. The other die has two faces with one-spot and four faces with a two-spot. One of the dice is selected at

    asked on July 29, 2014
  8. math

    In a triangle ABC,right angled at B, BD is drawn perpendicular to AC. prove that: (i) angle ABD = angle c (ii) angle CBD = angle A

    asked on July 27, 2012
  9. Earth

    1. If the Earth were the size of B-B (with a radius of about 0.2 centimete), how big would the Sun be? How big would the Milky Way be? 2. Imagine building a model of the Solar System on your campus. Work out the diameter and spacings of the planets in

    asked on April 3, 2007
  10. Chemistry

    A mixture of C3H8 and C2H2 has a mass of 2.5 g . It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.5 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.

    asked on August 19, 2015
  11. chemistry help

    what is lead (II) acetate + hydrogen sulphide --> Pb(C2H3O2)2 + H2S --> how do i figure it out?

    asked on March 25, 2014
  12. Chemistry

    How many grams of CaCl2 would be required to produce a 3.5M(molar) solution with a volume of 2.0L?

    asked on April 27, 2013
  13. Math

    Rick's car gets 29.7 miles per gallon on the highway.If his fuel tanks hold10.45 gallons,then how far can he travel on one full tank.?

    asked on November 13, 2012
  14. Physics

    A parallel-plate capacitor is constructed of two horizontal 15.2-cm-diameter circular plates. A 1.9 g plastic bead, with a charge of -5.6 nC is suspended between the two plates by the force of the electric field between them. What is the charge on the

    asked on September 10, 2017
  15. physics

    A loudspeaker has a movable diaphragm (cone) that vibrates back and forth in harmonic motion to produce sound. The displacement of the cone playing a sinusoidal test tone is shown above. Find the following values from the graph. (NOTE: t = 0.03 sec, and

    asked on December 31, 2012
  16. organic chemistry

    urgent, please help me...this is about the separation and purification scheme... there is 4 group of mixture: a)benzoic acid, benzoin and 1,4-dibromobenzene b)fluorene, o-toluic acid and 1,4-dibromobenzene c)phenanthrene, methyl 4-aminobenzoate and

    asked on March 23, 2010
  17. Physics

    A small metal bead, labeled A, has a charge of 26 nC . It is touched to metal bead B, initially neutral, so that the two beads share the 26 nC charge, but not necessarily equally. When the two beads are then placed 5.0 cm apart, the force between them is

    asked on September 10, 2017
  18. math

    Given that a sports arena will have a 1400 meter perimeter and will have semi- circles at the ends with a possible rectangular area between the semi-circles, determine the dimensions of the rectangle and semi-circles that will maximize the total area.

    asked on May 8, 2013
  19. math

    73. Cell Phone Plan A cell phone plan costs $3.95 per month plus $0.07 per minute. (Assume that a partial minute is not rounded up.) (a) During July, a person talks a total of 50 minutes. What is the charge? (b) Write an equation in slope–intercept form

    asked on January 18, 2013

    A baseball is thrown at an angle of 40.0° above the horizontal. The horizontal component of the baseball’s initial velocity is 12.0 meters per second. What is the magnitude of the ball’s initial velocity?

    asked on January 8, 2013
  21. Math

    Rick's car gets 29.7 miles per gallon on the highway.If his fuel tanks hold10.45 gallons,then how far can he travel on one full tank.?

    asked on November 13, 2012
  22. Science

    When light passes into the eye, what is it focused by? Is it the cornea and pupil or the retina and cornea? Please help thankss

    asked on September 26, 2012
  23. Science

    Which statement about scientific question is true? a. Scientific Questions should avoid bias or b. Scientific Questions should be as general as possible

    asked on September 6, 2012
  24. geometry

    In a triangle ABC,right angled at B, BD is drawn perpendicular to AC. prove that: (i) angle ABD = angle c (ii) angle CBD = angle A

    asked on July 27, 2012
  25. Chemistry

    How many atoms are present in a sample of 2.0 x 10^23 molecules of C7H5(NO2)3? Do you use Avogadro's Number? And please show work.. :)

    asked on January 6, 2012
  26. MATH

    Find a positive integer m such that 1/2m is a perfect square and 1/3m is a perfect cube. Can you find a positive integer n for which 1/2n is a perfect square, 1/3n is a perfect cube and 1/5n is a perfect fifth power?

    asked on April 2, 2010
  27. Math

    Fritz benjamin buys a car costing $8300. He agrees to make payment at the end of each month period for 8 years. He pays 7.2% interest compounded monthly. what is the amount of each payment? find the total amount of interest fritz will pay?

    asked on May 15, 2019
  28. Math

    Three fifth of the members of a hiking trip club went on the last hiking trip. If 39 people went on the trip how many are in the club? Mathew travels two and one half miles to get to school. This is 3 times the distance that Jennifer travels . How far does

    asked on September 27, 2015
  29. Citizenship education

    Define character in six page

    asked on April 10, 2015
  30. math

    what does this question mean : Sketch a graph to show four graphs in each family. a) y=(x-3)(x+6) b) y= (x+1)(x+1)

    asked on September 27, 2014
  31. Math

    a camera's focal length, F, is related to the distance from the subject, S, and the image distanc, I, by the equation 1/S+1/I=1/F Please show all your steps! thanks you

    asked on September 16, 2014
  32. English help!!

    did anyone read the book "The girls" by Lori Lansens??

    asked on June 5, 2014
  33. english please help!!

    In the book "The Alchemist" -by paulo coelho, how did Santiago's character change? And also what about the Englishman & Fatima.

    asked on May 25, 2014
  34. science-physics

    a ray of light traveling from the air into crown glass strikes the surface at an angle of 30 degrees. what will the angle of refraction be? please help me!! don't ignore this !

    asked on April 24, 2014
  35. Chemistry

    In an experiment a student allowed benzene C6H6, TO REACT WITH EXCESS BROMINE BR2, in an attempt to prepare bromobenzene C6H5Br. This reaction also produced as a by-product, dibromobenzene, C6H4Br2, On the basis of the equation. C6H6 + Br2 -> c6h5Br + H Br

    asked on November 1, 2012
  36. Calculus

    Determine the work done by force f=[1,4] in newtons for an object moving along the vector d =[6,3] Okay i found the vector equation and then the parametric and now i have no clue what do please help :) One more thing there a question that say given the

    asked on June 17, 2012
  37. math

    to compare3/8 and 9/16 what equivalent fraction could you find?

    asked on October 17, 2011
  38. Lotto 5/90 maths

    35 7 85 33 40 - 60 74 25 19 2 what will this game produce for the next lotto game

    asked on April 11, 2011
  39. the lagrange multiplier equation

    A cylindrical oil-storage tank is to be constructed for which the following costs apply: cost per square meter metal for sides $30.00 (cost per square meter) combined costs of concrete base and metal bottom $37.50(cost per square meter) top 7.50 (cost per

    asked on November 15, 2010
  40. Chemistry

    A student performed the synthesis of aspirin using a water bath at 90C instead of 50C. The final product was tested for the presence of phenols with ferric chloride. This test was negative (no color observed); however, the melting point of the dry product

    asked on March 20, 2010
  41. Algebra 2

    A blue print of a shopping complex shows that the bottom edge of the roof to be 93 feet above the ground. If the roof rises to a point 171 feet above the ground over a horizontal distance of 6.5 yards, what is the slope of the roof? I am positive the

    asked on October 14, 2009
  42. maths

    prove that cos3x+sin3x/cos x-sin x=1+2sin2x

    asked on July 22, 2009
  43. Social Studies

    How are the governments of Australia and the Pacific islands similar? How are they different?

    asked on November 27, 2019
  44. Math

    Mrs. Adam walks between 2/5 and 4/5 mile every day. Which is the best estimate of the number of miles she will walk in 30 days?

    asked on October 14, 2019
  45. Math

    A farmer has 4 cartons of specialty eggs for sale. Each carton contains 12 eggs. If 2/3 of the eggs are brown eggs, what is the total number of brown eggs he has for sale?

    asked on October 14, 2019
  46. Chemistry

    why the yield of ester is relatively low? suggest modifications which would improve the purity of ester?

    asked on September 3, 2017
  47. Chemistry

    What's the difference between the pressure of a system and the partial pressures in relation to Le Chatelier's principles? I know that when the pressure of the system is increased, it goes to the side with less moles/particles and when decreased it will go

    asked on July 13, 2017
  48. PHYSICS2, help!

    A string is wrapped around the rim of a flywheel 0.400 m in radius, and a steady pull of 50.0 N is exerted on the cord. The wheel is mounted in frictionless bearings on a horizontal shaft through it's center. The moment of inertia of the wheel is 4.00

    asked on May 17, 2017
  49. PHYSICS, help!

    A 5 kg block rests on a frictionless horizontal surface. A cord attached to the block passes over the pulley whose diameter is 0.120 m to the hanging block of mass 5 kg. The system is released from rest and the blocks are observed to move 3m in 2.0 s. A.

    asked on May 17, 2017
  50. Science

    Define love

    asked on January 5, 2017
  51. Chemistry

    How many Cu+2 ions are in 5.33 mol of CuCl2? I did this so far: n-> 5.33 mol Ncu-> ? ions M= 134.45 g =5.33 mol x (602x10^23 ions/ 1 mol) =3.21x10^24 ions

    asked on November 12, 2016
  52. Physics

    A car of mass 920.0 kg accelerates away from an intersection on a horizontal road. When the car speed is 48.2 km/hr (13.4 m/s), the net power which the engine supplies is 5900.0 W (in addition to the extra power required to make up for air resistance and

    asked on May 31, 2016
  53. Chemistry

    1.) A closed 5.00 L container is filled with a mixture of 4.00 moles of hydrogen gas, 8.00 moles of oxygen, 12.0 moles of helium, and 6.00 moles of nitrogen. What is the pressure in this container at a temperature of 25 °C? 2.) A closed 5.00 L container

    asked on April 24, 2016
  54. Math

    A projectile is launched upward from the ground at an initial velocity of 400 feet per second. During it’s upward flight, the projectile passes a hot air balloon floating at a constant height of 2400 feet. How many seconds later will the projectile pass

    asked on December 31, 2015
  55. Math

    The price of a television set on sale is $360. This is two third of the regular price. Find the regular price?

    asked on September 27, 2015
  56. physics

    If a staircase has five steps each 1.45m high and 1.5m wide. A ball is placed on the top of the staircase what maximum (horizontal) velocity be given to the ball so that it directly hits the lowest plane?

    asked on August 1, 2015
  57. Visual Logic

    Create an amortization schedule to calculate your monthly payments on a car and show the loan balance over time with visual logic? Must include assignment statements, IF statement, loop, array. amount= 20000 interest rate= 2% Pay by= 5 yrs So far i've done

    asked on July 23, 2015
  58. math

    what is moving number of 90

    asked on March 29, 2015
  59. physics

    A physics student pulls a block of mass m = 20 kg up an incline at a slow constant velocity for a distance of d = 4.5 m. The incline makes an angle Δ = 30° with the horizontal. The coefficient of kinetic friction between the block and the inclined plane

    asked on March 8, 2015
  60. Math

    Mrs. Monk is wrapping presents . If a roll and a half wraps 5 gifts, if there are 9 same sized presents, how many rolls of paper are needed?

    asked on February 20, 2015
  61. Math

    Mrs monk rented a truck for 3 days. Enterprise charged her $40. per day plus $.25 per miles. The total charge was $142.75. How many miles did she drive the truck? (1) 411 miles (2) 91 miles (3) 251 miles (4) 571 miles

    asked on February 20, 2015
  62. Math

    Mrs. Monk rented a truck for 3 days. Enterprise charged her $ 40 per day plus $0.25 per miles. The total charge was $142.75. How many miles did she drive the truck?

    asked on February 20, 2015
  63. physics

    Mrs. Meissner is taking her dog Cooper for a walk. Cooper stops to sniff a tree stump and Mrs. Meissner has to exert a force of 148 N on Cooper's leash (held 35 angle above the horizontal) in order to get him to move 2.0 m away from the tree stump.

    asked on November 11, 2014
  64. math

    for what values of k in y=3x+k with the curve y=-x^2-3x+6 intersect the line at 2 points

    asked on September 29, 2014
  65. MATH ASAP!!

    Rationalize the denominator using the conjugate. 1/1-√7+√5 please show all the steps and explain it

    asked on September 23, 2014
  66. math

    Rationalize the denominator using the conjugate. 1/1-√7+√5 please show all the steps and explain it i don't get it

    asked on September 23, 2014
  67. math help ASAP!!

    simplify fully! 3x-2/x+4 = 18-4x/x^2-16 - 3x+2/4-x show all of your steps pleasee !!

    asked on September 17, 2014
  68. math help

    find the ratio of the volume to the surface area of the rectangular prism shown. L= 4x+8 W= x+2 H= 2x+4 please show all your steps please!!

    asked on September 16, 2014
  69. math help!!

    factor: a^2/36 - b^2/49 show all your steps please!!

    asked on September 4, 2014
  70. Math

    factor: a^2/36 - b^2/49 show all your steps please !

    asked on September 4, 2014
  71. math help!!

    factor: 9n^2-25

    asked on September 3, 2014
  72. math

    what is the vertex of y=x^2-4 ??

    asked on June 17, 2014
  73. science

    1) why are images produced under the microscope reversed & inverted? 2) why does a specimen need to be centered in the field of view on low power before going to high power?

    asked on May 13, 2014
  74. math-factor

    factor: 2x^2(x-3)+12x(3-x)-18(x-3)

    asked on May 5, 2014
  75. physics

    calculate the image positions and magnifications for an object 3cm tall and a mirror of focal length +12 with the object at the following positions: 2.5 f, 2.0 f, 1.5 f, 0.5 f. please help me don't understand it at all. it would be best if you can explain

    asked on April 16, 2014
  76. chemistry

    what is a complete and incomplete combustion reaction ??

    asked on March 30, 2014
  77. math help

    factor: 1) (x+y)^2 - (a+b)^2 = [(x+y) - (a+b)] [(x+y) + (a+b)] = [x+y-a-b] [x+y+a+b] 2) 6x^4 - 6 = 6(x^4 - 1) = 6(x^2-1)(x^2+1) Is this right?

    asked on March 28, 2014
  78. math help!!

    Factor: 2(2x^2-x)^2-3(2x^2-x)-9

    asked on March 27, 2014
  79. math help!!

    factor: (x^2+5x)^2 - 36 and (a-b)^2 - (c-d)^2 show the steps pleasee!

    asked on March 27, 2014
  80. math help

    factor: (a-b)^2 - (c-d)^2

    asked on March 27, 2014
  81. math help ASAP!!

    factor: 2m^3 - 7m^2n - 15mn^2

    asked on March 27, 2014
  82. math

    factor: -20x^2 + 5y^2

    asked on March 27, 2014
  83. math

    how do you factor: (a - b)^2 - c^2

    asked on March 27, 2014
  84. english

    choose the correct one. a) I wore all of the safety equipment for skateboarding; however, I still hurt myself. b) I wore all of the safety equipment for skateboarding, however, I still hurt myself. c) I wore all of the safety equipment for skateboarding

    asked on March 25, 2014
  85. english

    i have a question say you're writing a sentence such as "I ate apples, bananas, oranges, and grapes." is there a comma before 'and' or no?

    asked on March 25, 2014
  86. english-essay writing topic

    what is a good topic to write about for a personal essay? it has to be something that is meaningful. PLEASE HELP ASAP!!!

    asked on March 18, 2014
  87. physics

    Use the following information to calculate the speed of a ball in a pinball machine at a specific location. The ball is launched by using a spring (k = 684 N/m) compressed by 7.8 cm. Consider the starting position of the ball to be its location when the

    asked on March 10, 2014
  88. physics

    A bead of mass m = 42.5 kg is released from point A which is located 5 m above the ground and slides on the frictionless track as shown in the figure. Determine the beads speed when it reaches point C which is located 2.0 m above the ground.

    asked on March 10, 2014
  89. physics lab

    The experiment done in lab is repeated, using a ball that has unknown mass m. You plot your data in the form of f 2 versus M/L, with f in rev/s, M in kg, and L in m. Your data falls close to a straight line that has slope 7.82 m/(kg · s2). Use g = 9.80

    asked on February 24, 2014
  90. physics

    A small block has a horizontal velocity of 4.00 m/s as it slides off the edge of a table. The table is a vertical distance of 0.95 m above the floor. If g = 9.80 m/s2, how far does the block travel horizontally while it is in the air?

    asked on February 24, 2014
  91. Math

    When Marcia started walking a 6 mile section of the trail, it took her 3.3 hours.After 1week her time was 3.1hours and after 2 weeks, it was 2.9 hours. If the pattern continues, what will Marcia's time be after 5 weeks?

    asked on February 10, 2014
  92. Science

    How are the reactants and products of photosynthesis and cellular respiration related?

    asked on December 9, 2013
  93. Stats

    The random variable U has mean 10 and standard deviation 5.The random variable V is de ned by V =12(U + 5).Find the mean and standard deviation of V.

    asked on November 19, 2013
  94. Math

    Which fraction is equivalent to 5/6 * 1/3 ? 5/18 2/5 1 and 1/6 2 and 1/2

    asked on July 1, 2013
  95. Math

    Which fraction is equivalent to 5/6 (divided sign) 1/3? 5/18 2/5 1and 1/6 2and1/2

    asked on July 1, 2013
  96. calc

    x^2 + √(x+y) + y^2 = 0; y is a differentiable function of x

    asked on May 8, 2013
  97. calc

    Integrate 1/(ln(x)); f(e^e)=1 please provide step! confused because of f(e^e)!

    asked on May 8, 2013
  98. math

    integrate (x^2 + 2x + 5) / (x - 2)

    asked on May 8, 2013
  99. calc

    Given X^2 + Y^2 = R^2, namely, a circle with center (0,0) and radius R, use integration to prove that the circle’s area equals πR2

    asked on May 1, 2013
  100. calc

    Integrate 2(x^2)e^g(x) where g(x)=4^(x^3)

    asked on May 1, 2013


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