# Sunny

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?

2. ## 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

3. ## Science

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

4. ## 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

5. ## 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.

6. ## 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

7. ## 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

8. ## 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

9. ## 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

10. ## physics

A 5.0 gm marble is fired vertically upward using a spring gun. The spring must be compressed 8 cm if the marble is to just reach a target 20 m above the marble’s position on the compressed spring .(a) What is the change in the gravitational potential

11. ## chemistry help

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

12. ## 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.. :)

13. ## Astronomy

A cinder block can be weightless in space. Would you want to kick it with your bare foot? Even If it is weightless, does it have mass? An astronaut, circling the earth in the Space Shuttle, senses that his apparent weight is zero. He cannot feel the normal

14. ## Chemistry

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

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?

16. ## Chemistry

In a reaction between methane, CH4 and chlorine, Cl2 four products can form: CH3Cl, CH2Cl2 + CHCl3 and CCl4. In a particular instance, 20.8 g of CH4 were allowed to react with excess Cl2 and gave 5.0 g CH3Cl, 25.5 g CH2Cl2+ and 59.0 g CHCl3+ all the CH4

17. ## math

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

18. ## 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

19. ## maths

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

20. ## 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?

21. ## 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

22. ## 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

23. ## 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

24. ## 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)

25. ## 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

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

27. ## chemistry

what is a complete and incomplete combustion reaction ??

28. ## 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

29. ## 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.?

30. ## 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

31. ## Science

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

32. ## 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

33. ## Lotto 5/90 maths

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

34. ## 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?

35. ## 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

36. ## math

on friday catlin ran 1 and 1/5 miles on sunday she ran 1 and2/5 miles.On the same two days her friend lee ran a total of 3 miles.How much father than catlin did lee ran?

37. ## Social Studies

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

38. ## 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?

39. ## 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?

40. ## Chemistry

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

41. ## 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

42. ## 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

43. ## 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.

Define love

45. ## 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

46. ## 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

47. ## 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

48. ## 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

49. ## Math

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

50. ## 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.

51. ## 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?

52. ## 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

53. ## Citizenship education

Define character in six page

54. ## math

what is moving number of 90

55. ## 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?

56. ## 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

57. ## 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?

58. ## 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.

59. ## math

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

60. ## MATH ASAP!!

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

61. ## math

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

62. ## math help ASAP!!

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

63. ## 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!!

64. ## 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

67. ## math help!!

factor: 9n^2-25

68. ## math

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

69. ## English help!!

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

70. ## 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?

71. ## math-factor

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

72. ## 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 !

73. ## 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

74. ## 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?

75. ## math help!!

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

76. ## math help!!

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

77. ## math help

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

78. ## math help ASAP!!

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

79. ## math

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

80. ## math

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

81. ## 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

82. ## 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?

83. ## 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!!!

84. ## 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

85. ## 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.

86. ## 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

87. ## 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?

88. ## 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?

89. ## Science

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

90. ## 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.

91. ## Math

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

92. ## Math

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

93. ## calc

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

94. ## calc

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

95. ## 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.

96. ## math

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

97. ## 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

98. ## calc

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

99. ## math

Find f’(x) if f(x) = 3^g(x) where g(x) = LOG_3(x^2 - √x + 4/x + 10*LOG_e(x))