# Questions Asked onApril 6, 2011

If 1100 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box. I'm supposed to type the answer in cubic centimeters... my answer was 2500 cm^3 but it's wrong... I have also

2. ## Physics

A car of mass = 1200 traveling at 60.0 enters a banked turn covered with ice. The road is banked at an angle , and there is no friction between the road and the car's tires.What is the radius of the turn if = 20.0 (assuming the car continues in uniform

Let f(x)=e^(2x)-kx, for k greater than 0. Using a calculator or computer, sketch the graph of f for k=1/9, 1/6,1/3,1/2,1,2,4. Describe what happens as k changes. f(x) has a local minimum. Find the location of the minimum. x= ____ Find the y-coordinate of

4. ## chemistry

In the reaction N2 + 3H2 -> 2NH3, how many grams of NH3 gas would be formed when H2 gas, having a volume of 11.2 liters at STP, reacts with excess N2 gas? Completly confused, thank you very much for your help :)

5. ## physics

A 9.0-kg box of oranges slides from rest down a frictionless incline from a height of 5.0 m. A constant frictional force, introduced at point A, brings the block to rest at point B, 19 m to the right of point A. What is the coefficient of kinetic friction,

6. ## Calculus (pleas help!!!)

Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0.5,0), a minimum at (1.5,−4), and no critical points between these two points.

7. ## Chemistry

Write the equation for the dissolution of (NH4)2S04 in water. How many moles of each type of ion, and how many total moles of ions does the dissolution of 0.5 mol of (NH4)2S04 produce? help pleaseeeeee ASAP

8. ## Physics 203

The system shown below is released from rest. The mb = 35 kg block is 2 m above the ledge. The pulley is a uniform disk with a radius of 10 cm and mass M = 5.0 kg. Assume that the string does not slip on the pulley. (a) Find the speed of the 35 kg block

9. ## Math

Write two numbers that have the given absolute value. 4 38 260 4092 I know one is 4 but do not know the second unless it is -4 Do not have no clue can someone explain?

10. ## linear programming app

solve this linear programming problem; A chain saw requires 4 hours of assembly and a wood chipper 6 hours. A maximum of 48 hours of assembly time is available. The profit is $150 on a chain saw and$220 on a chipper. How many of each should be assembled

11. ## physics

2) Two objects, A and B, initially at rest, are "exploded" apart by the release of a coiled spring that was compressed between them. As they move apart, the velocity of object A is 5 m/s and the velocity of object B is -2 m/s. What is the ratio of the mass

12. ## physics

A 53 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 13 m, and falls a total of 35 m. Calculate the spring stiffness constant k of the bungee cord, assuming Hooke's law applies.

13. ## ap chemistry

For propanoic acid (HC3H5O2, Ka = 1.3 10-5), determine the concentration of all species present, the pH, and the percent dissociation of a 0.29 M solution. [H+] [C3H5O2-] [OH -] [HC3H5O2] pH percent dissociation

14. ## Chemistry

Calculate the mass of H2O produced by the decomposition of 2.21g of CuCO3 x Cu (OH)2. What happend to this water? This question is incredibly important and I am stuck on it, thank you very much for your help

15. ## math

Two similar polygons have areas of 16 square inches and 64 square inches. The ratio of a pair of corresponding sides is 1/4. True False its true?

16. ## calculus

A rumor spreads through a population in such a way that "t" hours after the rumor starts, the percent of people involved in passing it on is given by P(t)=100[e^(-t)-e^(-4t)]. What is the highest percent of people involved in spreading the rumor within the

17. ## Physics

A novice skier, starting from rest, slides down a frictionless 24.0 incline whose vertical height is 215. How fast is she going when she reaches the bottom?

18. ## physics

How does pressure work as a restoring force to create a sound wave?

19. ## math

If you triple 4 and subtract 2 each day, how many days until you have zero?

20. ## Chemistry

How many joules of heat are needed to heat 25.0 g of ice at -5.0 degrees celcius to a final temperature of 40.0 degrees celcius? The specific heat of ice is 2.1 j. Our teacher mention to consider the state of water present at 40.0 degrees celcius which is

21. ## statistics

You are a travel agent and wish to estimate, with 98% confidence, the proportion of vacationers who use an online service or the Internet to make travel reservations. Your estimate must be accurate within 4% of the population proportion. a) No preliminary

22. ## geometry

The Volumes of two similar figures are given. The surface area of the smaller figure is given. Find the surface area of the larger figure. V= 27m^3 V= 64m^3 S.A.= 63m^2

23. ## Chemistry

How much heat (in kilojoules) is evolved or absorbed in the reaction of 2.90g of Fe2O3 with enough carbon monoxide to produce iron metal? Fe2O3 + 3CO ---> 2Fe + 3CO2 dH=-24.8kJ How do you find q (of the 2Fe in kJ).

24. ## Calculus (pleas help!!!)

Let p(x)=x^2(a−x), where a is constant and a greater than 0. Find the local maxima and minima of p. (Enter your maxima and minima as comma-separated xvalue,classification pairs. For example, if you found that x=−2 was a local minimum and x=3 was a

25. ## math

a shipping box is shaped like a rectangular prism.it has a total volume of 96 cubic inches. the height is two inches less than the width. what are the dimensions of the box?

26. ## chemistry

the mass of cobalt-60 in a sample is found to have decreased from 0.800g to 0.200g in a period of 10.5 years. from this info calculate the half-life of cobalt-60

27. ## calculus

the net monthly profit in dollars, from the sale of a certain item is given by formula p(x)=10^6[1+(x-1)e^-0.001x], where x is a number of item sold

28. ## Physics 20

dynamics A curling stone has a mass of 20kg. a curler pushed the stone across the ice to launch it down the rink. a)if the curler starts to move the stone by pushing it with 15N, what is the stones initial acceleration? b)once moving, how much force is

29. ## Chemistry

Would the molar mass become high or low if water vapors condensed under the aluminum foil before the final weighing?

30. ## Math

14. Parks A survey of 300 parks showed the following. 15 had only camping. 20 had only hiking trails. 35 had only picnicking. 185 had camping. 140 had camping and hiking trails. 125 had camping and picnicking. 210 had hiking trails. Find the number of

31. ## Salisbury University

A spring with 53 hangs vertically next to a ruler. The end of the spring is next to the 21- mark on the ruler. If a 3.0- mass is now attached to the end of the spring, where will the end of the spring line up with the ruler marks?

32. ## Chemistry

In a decomposition reaction 2KCLO3 -> 2KCL + 3O2, what volume of O2 gas at STP would be produced from 3.66g of KCLO3 Thank You very much for your help :)

33. ## Chemistry

What is the pH of a solution that results from the addition of 5mL of 0.1 M HCl to 50mL of pure water?

34. ## Physics 203

A 1.3-kg 10-cm-diameter solid sphere is rotating about its diameter at 77 rev/min. (a) What is its kinetic energy? (b) If an additional 5.0 mJ of energy are supplied to the rotational energy, what is the new angular speed of the ball? rev/min

35. ## spanish

Rewrite each statement two ways using object pronouns. Tengo que leer los libros en una semana.

48. ## Chemistry

Determine the grams of NaOH that could be absorbed by the SO3/HSO3 buffer before the base absorbing capacity of this buffer were destroyed.

49. ## math

how to put weights in order from least to greatest

50. ## Chemistry

A vilatile liquid was allowed to evaporate in a 43.298 g flask that has a total volume of 252 ml. The temperature of the water bath was 100 degree Celsius at the atmospheric pressure of 776 torr. The mass of the flask and condensed vapor was 44.173 g.

51. ## math

a hotel chain charges $120 per room and rents an avg of 40 rooms per night at this rate. For each$10 reduction in price, they rent an avg of 10 more rooms. Find the rate they should be charging to maximize revenue. Help please! Thanks!

52. ## Chemistry

Sulfur burns in oxygen in two steps: i.S(s) + O2(g) ->SO2(g) change of Heat=-297kJ ii. 2SO2(g) + O2(g)->2SO3(g) change of heat=-198kJ Calculate the total heat released if this is the final reaction: 2S(s) + 3O2(g)->2SO3(g)

53. ## math

a single numbered standard cube is tossed. what is the probability of getting a number other than nine

54. ## physics

A tennis ball of 60g is dropped from a height of 2.0m,It rebounds but loses 25% of its kintic energy as thermal energy.Ignoring air resistance,calculate (1)the kinetic energy of the tennis ball when hits the ground. (2)the height reached on the ground

55. ## chemistry

If 50.0 g of sodium bicarbonate is reacted and 11.0 g of carbon dioxide is produced, what is the percent yield of carbon dioxide? 2NaHCO3 --> Na2CO3 + CO2 + H2O

56. ## chem

How many liters of 12.3 molar NaOH stock solution will be needed to make 12.4 liters of a 1.2 molar NaOH solution? Show the work used to solve this problem.

57. ## simple subject and predicate

Many useful tools are made from metal.

58. ## Physics

A hollow, thin-walled cylinder and a solid sphere start from rest and roll without slipping down an inclined plane of length 5.0 m. The cylinder arrives at the bottom of the plane 2.7 s after the sphere. Determine the angle between the inclined plane and

59. ## chemistry

the mass of cobalt-60 in a sample is found to have decreased from 0.800g to 0.200g in a period of 10.5 years. from this info calculate the half-life of cobalt-60

60. ## Physics

If a gas tap is turned on for a few seconds, someone a couple of meters away will hear the gas escaping long before he or she smells it. What does this indicate about the speed of sound and the motion of molecules in the sound-carrying medium?

61. ## pscyhology

Which one of the following statements best illustrates implicit memory

62. ## math

a factory produces 6 motorcycles in 9 hours write a proportion and solve it to find how many hours it takes to produce 16 motorcycles. help me please!

63. ## Chemistry

An empty flask weighs 128.632g. After vaporization of a sample of volatile liquid, at a measured temperature of 99.8 C. The flask is sealed, cooled to room temperature, and weighed. The mass is now 129.225g. The measured P atm is 757.7 torr. The flask is

64. ## computer science

in mobile phone network how many times as strong would a signal be expected to be at 200 m from a base station, compare with at 600 m? is it 81 or 9 or 3 or 0.3 or 0.1 or 0.01

65. ## physical

Part A Each blade on a wind turbine is engineered to produce an effective force through its center of mass that is perpendicular to its long axis. (Part A figure) The magnitude of the force produced by each blade in a wind of speed v is F=(40.0~{\rm

66. ## Calculus (pleas help!!!)

Let f(x)=e^(2x)-kx, for k greater than 0. Using a calculator or computer, sketch the graph of f for k=1/9, 1/6,1/3,1/2,1,2,4. Describe what happens as k changes. f(x) has a local minimum. Find the location of the minimum. x= ____ Find the y-coordinate of

67. ## Algebra II-Please check calc

How many ways can a teacher arrange 10 students in a front row if there are 60 students I think I do 60!/50! = 2.74 *10^17 How many ways can you choose committee of 7 from a total of 20 (20 nCr7) = 77520

68. ## physics 20

DYNAMICS: a skier starts at the top of a 30m hill ta an anle of 20 degrees. the skier goes straight down the firctionless slope. How long will it take the skier to get to the bottom?

69. ## physics

A convex mirror has a focal length of 19.0 cm. Determine the object location for which the image will be one-fourth as tall as the object. i really need help on this one. im completely stuck!

70. ## math

1) A region is bounded by the line y = x and the parabola y = x2 - 6x + 10. What is the volume of the solid generated by revolving the region about the x-axis?

71. ## Workplace Hazards and Safety

Describe and explain 5 rights and/or responsibilities of the worker with regards to safety in the workplace. This is the information I have: Worker's responsibilites: -Cooperate with the joint committee or worker health and safety representative,

72. ## Physics 203

A hollow, thin-walled cylinder and a solid sphere start from rest and roll without slipping down an inclined plane of length 5.0 m. The cylinder arrives at the bottom of the plane 2.7 s after the sphere. Determine the angle between the inclined plane and

73. ## Physics 20

dynamics A curling stone has a mass of 20kg. a curler pushed the stone across the ice to launch it down the rink. a)if the curler starts to move the stone by pushing it with 15N, what is the stones initial acceleration? b)once moving, how much force is

74. ## physics

1) A 1.0 kg mass is attached to the end of a vertical ideal spring with a force constant of 400 N/m. The mass is set in simple harmonic motion with an amplitude of 10 cm. What is the speed of the 1.0 kg mass at the equilibrium position?

75. ## I.T

pseudocode for a program that is required to compute the costs of a car trip. The required input values are: Litres per 100km, Distance travelled and Cost per litre of petrol. The out value is the total cost of the trip.

76. ## Math

Triangle XYZ is dilated by a factor 1/2. What is the ratio of the area of triangle XYZ to the area of it's image, triangle X'Y'Z'?

77. ## chemistry1

how much heat is needed to melt 25.4 grams of iodine at its melting point?(Hfusion+61.7J/g)

78. ## chem

Calculate the pH of each of the following solutions. (a) [H3O+] = 2.9 10-10 M- I got 9.5 but its wrong. I used the equation pH= -log[H3O+] Is this the wrong equation? (b) [H3O+] = 6.4 10-2 M thanks:)

79. ## Physics

What is the magnitude of the force per meter of length on a straight wire carrying an 8.50 -A current when perpendicular to a 0.55 -T uniform magnetic field?

80. ## Chemistry

I have a question which asks... What is the Oxidation number of Nitrogen in Cu(NO3)2 I know the answer is 5+ but how do you get that?? Cu= 2+ O= 2- (Theres 3 of them so -2x3=-6...then, theres a two out of the brackets so 6- x 2 =-12) +2 - (-12)= -10? And

81. ## physics 20

DYNAMICS: a skier starts at the top of a 30m hill ta an anle of 20 degrees. the skier goes straight down the firctionless slope. How long will it take the skier to get to the bottom?

82. ## Finite Math

Consider the pea data: # peas in pod 2,3,4,5,6 and frequency 7, 9, 5, 3, 1: a. find the mean, median, mode and midrange number of peas per pod. b. is the mean higher or lower than the median? What kind of skew does this indicate?

83. ## Physics

If one machine creates a level of 90 decibels, what decibel level would be generated by 50 of these machines? If sounds are created at random, the net intensity is found by adding the individual intensities-not the decibels. Ignore distance effects.

84. ## chem

determine the wavelength of the line in the emission spectrum produced by an electron transition He+ from ni= 4 to nf= 2.

85. ## english

Which element of a short story would be most important to a story about a mad scientist stealing a secret weapon?

171. ## math

1) A region is bounded by the line y = x and the parabola y = x2 - 6x + 10. What is the volume of the solid generated by revolving the region about the x-axis?

172. ## Calculus (urgent!!)

Find a formula for a curve of the form y=e^((−(x−a)^2)/b) for b greater than 0 with a local maximum at x=−5 and points of inflection at x=−8 and x=−2.

173. ## poetry

What form of poetry are Robert Frost's "The Road Not Taken," and "Saturday Night" by Alden Nowlan? Thanks!

176. ## chemistry

I need help with the equilibrium constant, i understand it but I don't understand the last step when you have to change or find the exponent?

177. ## Physics

You are riding a bicycle at a speed of 15 m/s. The bycicle has tires with diameters measuring 630 mm. You can approximate each tire as a solid cyllinder (to calculate inertia) with a mass of 0.5 kg. What is the total rotational kinetic energy of the

178. ## Science

Which is true please help? A) When international comparative data is normalised it is related to the size of the population of the respective countries. B) The Trendalyzer visualisation in Gapminder World would be unsuitable for visualising how the number

179. ## science

Compare table salt with glucose.

180. ## math

Prove eachh mathematical statement for integers m,n,k,p,a,b 12. For every prime p and nonzero n we have n^2 is congruent to nMODp if and only if either n is congruent to 1MODp or n is congruent to 0MODp.

181. ## geometry

A wheel with a diameter of 18 m takes one full rotation.How much distance has it travelled?

182. ## earth

If the ray is traveling 5800 miles per hour from earth how long would it take to hit the moon?

183. ## accounting

a merchandising company wants to include the cost of operating its warehouse in the cost of inventory. The company’s controller argues that the cost of the warehouse is a reasonable and necessary cost of getting the inventory ready for sale and,

Find a formula for a curve of the form y=e^((−(x−a)^2)/b) for b greater than 0 with a local maximum at x=−5 and points of inflection at x=−8 and x=−2.

185. ## Chemistry

I have a question which asks... What is the Oxidation number of Nitrogen in Cu(NO3)2 I know the answer is 5+ but how do you get that?? Cu= 2+ O= 2- (Theres 3 of them so -2x3=-6...then, theres a two out of the brackets so 6- x 2 =-12) +2 - (-12)= -10? And

186. ## home economics

Why do some workers make more money than others

187. ## Algebra 2

Find the inverse of: f(x)=(-1/2)x+3 form of answer..y= Thank you so much!

188. ## Science

Blood from all parts of the body, exept the lungs goes to what part of the heart

189. ## chemistry

Calculate the molarity of a solution by dissolving 40.0 g NaOH in 1.5 L solution.

190. ## Chemistry

Calculate the pH of the buffere prepared if 40.0 mL of .2M NaOH is added. The previous buffer is made from HF an NaF... assume all necessary information is known about this buffer. Print an equation that shows how the NaOH is consumed by the buffereing

191. ## physics

A ladder of mass 34.4 kg and length 3.36 m is leaning against a wall at an angle θ. The coefficient of static friction between ladder and floor is 0.326; assume that the friction force between ladder and wall is zero. What is the maximum value that θ can

199. ## Math

Today, Harry mowed the lawn and weeded the garden. Usually, he mows the lawn every 6 days and weeds the garden every 4 days. How many days is it until Harry will again mow the lawn and weed the garden on the same day?

200. ## Chemistry

Consider the reaction 2 SO2 + O2 in equilibrium with 2 SO3 . At 25°C Ho = -197.78 kJ and So = -187.95 J/K. Using this information, calculate the equilibrium constant for the reaction at 50°C. (R = 8.314 J/K) Enter your answer using TWO significant

201. ## Chemistry

I have a question which asks... What is the Oxidation number of Nitrogen in Cu(NO3)2 I know the answer is 5+ but how do you get that?? Cu= 2+ O= 2- (Theres 3 of them so -2x3=-6...then, theres a two out of the brackets so 6- x 2 =-12) +2 - (-12)= -10? And

202. ## biology

Hi, I appreciate your expert help,and I have a question for you. If I'm asked to decribe resting potential, action poential, and synaptic transmission,in point form;would the following responses be right? Resting Potential: 1.Membrane at resting potential-

203. ## chemistry

In calibrating a thermometer by setting only the freezing and boiling points, what assumptions are you making regarding the internal diameter of the thermometer and the expansion of alcohol?

204. ## biology

Explain how alignment of chromosomes on the meta phase plate differs in mitosis, meiosis I, and meiosis II. Why are these arrangements important? Can you tell me where zi can find this information? I don't see it in my text. Thank you

205. ## english

Good evening, I’m asking some help to improve my english. I’m preparing my first certificate in english of cambridge. I wrote a text with the first sentence given. I’d be so glad if someone help me. Thank you As soon as Roy opened the door, he knew

206. ## physics20

DYNAMICS: A 54kg fireman slides down a pole of a distance of 3m. if the man hits the groung at 4.4m/s than what will the force of friction acting on the man due to the pole?

207. ## physics

In preparation for a demonstration on conservation of energy, a professor attaches a 7.2-kg bowling ball to a 3.4-m-long rope. He pulls the ball 23° away from the vertical and holds the ball while he discusses the physics principles involved. Assume that

208. ## English

Can you please tell me why "The hotel lies at a short distance from the beach" is wrong? Here are some more words I'd like you to check with reference to fashion. 1) wedge-heeled shoes, Parà-rubber shoes, trousers with patches on both sides, jeans with

209. ## Physics 20

Dymamics unit A car standing still is struck by 2 other cars simultaneously. a beetle applies a force of 2350N [N60degreesE] and a truck applies a force of 4150N [SW]. What is the net force acting on the stationary car?

210. ## probability

Suppose 1 person is picked at random from this group of dog owners. The probability that the person chosen is at least 50 years old and has at least 1 dog equals

211. ## science

A giraffe walking at 3m per second accelerates at 2m per second squared to 15 seconds. What speed does it end up at?

212. ## Physics

A 5.o kg box is lifted to a height of 10 meters at a constant speed. a)How much power is required to complete this task in 10 seconds? b)Calculate the velocity of the box just as it hits the ground? i have the answers but i need a second opinion a)50 watts

213. ## Environmental Science

write down the '' balance sheet''(carbon,electron,ATP,etc)for the fallowing metabolic process: -use the most common alternatives. -Give the balanced overall reactions with correct stoichiometry -Ýndicate all key reactans and products. -calculate how many

214. ## Physical Geography, Earth Science

Who were the four other major contributors to the development of modern astronomy after Copernicus? Explain what those contributions were. Finally, why did it take so long for the geocentric view of the universe to be overthrown and what does that tell us

215. ## math

2) A ball is hit at an angle of 36 degrees to the horizontal from 14 feet above the ground. If it hits the ground 26 feet away (in horizontal distance), what was the initial velocity? Assume there is no air resistance.

216. ## math

Write the following expression as the sine, cosine, or tangent of an angle: cos45°cos120° - sin45°sin120°

217. ## math

The density of a crystal is 2.65 grams per cubic centimeter. Ryan has a rectangular prism made of quartz. It measures 10 cm by 10 cm by 6 cm. Find the weight of this crystal in kilograms.

Please let me know what you think. It's for an exam. Thank you For the past three months, work-related problems have occurred in the office and need to be addressed. Before Jessica Hilo’s medical leave, the workload was equally divided. There were no

219. ## English

what is art online? ( online art galeries, virtual art, nowadays art or something different?)

220. ## English

Please check for comma errors. If I need to add any commas or take some out please show me where. Thank you!! You seem to be progressing nicely after your back surgery; however, I do want to remind you of the importance of the instructions that was give to

221. ## ENGLISH

Please check for commas errors and capilization. If I need to add or take out any commas, please show me where. Nashville, TN, November 9, 2011: Anisha Carter was named the new president of M& M Industries, and will take commands of the company on November

222. ## Enghlish-Now

Please read any if I need to add any commas or delete any, please let me kow where. Thank you!! Your presentation the Martin Managerial Conference in Chicago was excellent. While you were speaking, the audience was more attentive than they had been at any

223. ## algebra

What is a reasonable domain and range for this scenario? Water is added to a 30 milliliter solution that is 50% acid. The equation A(X)=15/30+x respresents the concentration of acid,A, in the mixture as x amount of water is added

224. ## physics

A projectile of mass 0.874 kg is shot straight up with an initial speed of 29.0 m/s. (a) How high would it go if there were no air resistance? (b) If the projectile rises to a maximum height of only 7.70 m, determine the magnitude of the average force due

a merchandising company wants to include the cost of operating its warenhouse in the cost of inventory, what impact will this descision have on the firm's income stement and balance sheet?:

226. ## Algebra II

((x-1)/3x+15))-((x+3)/(5x+25)) HOW TO SIMPLIFY THAT???

227. ## Chemistry

1.What is the molarity of a solution of silver perchlorate, AgClO 4, if 3.2 moles of silver perchlorate are dissolved in 1.5 liters of water?

228. ## World history

in which country was nationalism the biggest threat?

229. ## math- algebra- help please!

3 dice are rolled let (y,r,b) represent each outcome? a- sample space b- prob rolling a sum of 18 c- prob of rolling a sum less than 5

230. ## english

Are the pronoun refrences clearly started in these sentences? 1. The governor t told the mayor that she would win by a landslide. 2. When the mayor thanked the governor, she was happy. 3. People who wish to vote must do so before 7:00 p.m., for after that

231. ## MicroEconomic

Strictly speaking, perfect competition has never existed and probably never will. Then why study it?

232. ## chemistry

In calibrating a thermometer by setting only the freezing and boiling points, what assumptions are you making regarding the internal diameter of the thermometer and the expansion of alcohol?

If I ask Manuel if he is in a hurry I could say: Manuel, ¿Tienes prisa?

234. ## Information Technology Principles

If a term paper consisted 42 pages, each containing 40 lines of 100 symbols each (counting each space as a symbol), was to be encoded using Unicode, how many bytes of storage space would be required?

235. ## algebra

t squared plus 10t plus 16

236. ## PHysics

The tip of a helicoptor rotor blade can reach speeds of roughly 300 mph (130 m/s). It takes about 30 seconds to get them up to speed and they have a typical radius of 20 feet (6 m). What is the average angular acceleration of the rotor blades as they get

237. ## Algebra II

((x-1)/3x+15))-((x+3)/(5x+25)) HOW TO SIMPLIFY THAT???

238. ## statistics

A confidence interval or significance test is called stable if the confidence level or P-value does not change very much when the conditions for use of the procedure are violated

asked by A confidence interval or significance test is call
239. ## chemistry

If you have 200. mL of a 0.50 M solution of KOH and you wish to dilute it to 0.30 M, how many mL of water should you add?

240. ## Organic Chemistry

The UV/Visible spectrum for C10H14O exhibits a at 244 nm C10H16 + hot KMnO4 + H2SO4 → C10H16O3 C10H16O3 + Zn(Hg)/conc HCl → C10H18O2 C10H18O2 + CH3CH2OH + H3O+ → C10H22O2

241. ## music

which one of the following pieces of music would you most expect to be played by a full orchestra

242. ## World history

What was the foreign policy of William the 2nd?

243. ## Math (logarithmic functions)

Those are the only ones I can't seem to resolve. Thank you! resolve x: 1) 9*3^0,51x = 315 2) 10*3^15x+21 =363*2^9x+51 3) log(15x^2) - log(3x) = 4*log(3) 4) log[of base 3]*(15x + 4) = 3

244. ## chemistry

An experiment is considered a controlled experiment if it contains tests with chemicals.

245. ## GCF Help?

w^2-15w+44=0 How would I solve this? I know you need to find the GCF of it, but I can't figure it out.. Could someone help me? Thanks

246. ## physics

A light ray parallel to the optical axis of a glass sphere of radius R enters the sphere at height H above the axis (H

247. ## grammar

how can i rephrase this sentence WITHOUT using any personal pronouns --do you think the dough will rise the fastest in the sample with the highest, lowest, or a moderate concentration of sugar? thank you!

248. ## geometry

Consider the coordinates given and decide whether BC and DE are parallel, perpendicular, or neither B(3, -3), C(-3, -7), D(6, -5), E(0, 4) B(4, -7), C(1, 2), D(2, -8), E(-4, 10) B(-4, 0), C(2, 2), D(1, 4), E(2, 7)

249. ## sociology

Does race effect the self esteem of children?

250. ## World history

what is the Kulture kampf

264. ## vocabulary

Find the antiderivative by hand in each case. S stands for the integral sign I want to make sure I am doing these correctly. A) S x*sqrt(10 + x^2) dx So, u= 10 + x^2 du= 2xdx du/2= xdx (1/2) S sqrt(u) du (1/2)*((u^(3/2))/(3/2)) (1/2)*(2/3)*(u^(3/2))

266. ## trig

If an equilateral triangle has a side of 10 ft what is its altitude to two significant digits

267. ## physics

Quartz has a refractive index of 1.54. If light from a HeNe laser impinges on an air/quartz interface at an angle of 22.5 degrees, what is the angle of refraction?

268. ## Math

how does (2) / √[(2+√(2))] become (2-√(2))√[(2+√(2))] steps too please

269. ## Finance

what would happen if i had a credit card with $2000 dollars on it with an interest rate of 10%.the minimum payment is$50 a month how long would it take to pay off

270. ## calculas

2) A ball is hit at an angle of 36 degrees to the horizontal from 14 feet above the ground. If it hits the ground 26 feet away (in horizontal distance), what was the initial velocity? Assume there is no air resistance.

271. ## math

Without writing them all out, what is the number of subsets of set A ={king, queen, knight, prince, princess, duke, earl}?

Please check. How would I say "I feel like drawing. Would it be: Yo tengo ganas de dibujar.

273. ## English

I forgot to add the following sentences. I really hope you can have a look at them. She assured/informed me that the money had been paid. 1) She promised me that the money would be paid. She confirmed/explained/thought/reported/added that the money had

274. ## English-Help

Please check for commas errors. If I need to add or take out any commas, please show me where. Have you quit trying to train your dog? Don’t be discouraged. We have the answer to your problem. Professional obedience training can make an amazing different

275. ## physics

DYNAMICS: A 54kg fireman slides down a pole of a distance of 3m. if the man hits the groung at 4.4m/s than what will the force of friction acting on the man due to the pole?

a merchandising company wants to include the cost of operating its warenhouse in the cost of inventory, what impact will this descision have on the firm's income stement and balance sheet?:do you think the controller is justified in his action. Why?

277. ## psychology

the more people there are at the scene of an accudent, the less likely it is that individuals will step up to lend a hand this phenomeon is referred to as? a.)antiscoial behavior b.) diffusion responsibility c.)crowd apathy d.) diffusion of interest

278. ## Physics 20

DYNAMICS: A 54kg fireman slides down a pole of a distance of 3m. if the man hits the groung at 4.4m/s than what will the force of friction acting on the man due to the pole?

279. ## psychology

Are the cognitive intervention tools: operant conditioning, cognitive rehearsal, positive reinforcement, and journaling? I just want to know if this is correct.

280. ## Chemistry

1.What is the molarity of a solution of silver perchlorate, AgClO 4, if 3.2 moles of silver perchlorate are dissolved in 1.5 liters of water?

281. ## geometry

If the polygon is an equilateral triangle where each side is 24 inches long what is the apothem?

282. ## HCA/240

Hello, I hope you can help me. I have been trying to research on this Cytotoxic/Cytolytic? I finally found a definition but I am looking for an example of this? Do you have nay ideas that can help me? Thanks,

283. ## Geography

Name some Australian Icons, excluding animals. I am SOOOOOOOO stuck on this! All I can think of are Koala's and Kangaroos...

This was always my worst subject. Can you please check the changes I made? Thank you very much for your time. For the past three months, work-related problems have occurred in the office and need to be addressed. Before Jessica Hilo’s medical leave, the

285. ## Math

Estimate the measure of volume is 282 cubic inches. The actual volume is 289 cubic inches.what is the relative error of the measurements to the nearest thousandth

286. ## algebra

(y - 6)2 = 13

Today many employers expect interviewees to do more than just answer standard questions including all of the following except .defer to the hiring company to take control of the interview process B.provide samples of work they woukd likey do in the job.

288. ## History

Is italy a country?

289. ## English

Rewrite the sentences with the pronoun refrences clearly stated.. 1. The governor told the mayor that she would win by a landslide. 2. when the mayor thanked the governor, she was happy. 3. people who wish to vote must do so before 7 pm, for after that you

290. ## project management

Does anyone have the audit of the gauchito project plan

please can you help me for this question to get the right answer,,,, distinguish among a product modification a minoy innovation and a major innovation.present an example of each for a hotel

292. ## Speech Class

True or False, Communication can involve language but not speech.

293. ## English - Native speakers

Helo :) Can you tell me if the following explanation of mine concerning possessive s is correct? We put 's with every noun in singular (my mother's house)and when we have irregular plurals (this is my children's school) We put just the apostrophe when we

294. ## English

Can you please check the following sentences, please. It's really urgent. 1) Following what Joyce had already done in England and Proust in France, and what, in some way, Sterne had attempted as early as two centuries before, Virginia Woolf therefore

295. ## Excel

Want to create a worksheet that will help track your grades and. What formulas and/or functions might you use?

296. ## Physics 20

Dymamics unit A car standing still is struck by 2 other cars simultaneously. a beetle applies a force of 2350N [N60degreesE] and a truck applies a force of 4150N [SW]. What is the net force acting on the stationary car?

297. ## role of and health care/nursing role

in health care what trends do you anticipate influencing curriculum content and structure in the next decade?

298. ## English

I really need you to check these sentences on Owen's poem please. 1)In the second stanza, most of the soldiers succeed in putting on their clumsy gas masks. Someone, however, is still crying out for help, unable to move quickly and easily enough to put on

299. ## algebra

Find f(x) and g(x) such that f(g(x))= square root of x over 6 square root of x+5 .

300. ## home economics

what are 3 benifits of food imports into ireland?

301. ## World history

how did the german goverment encourage economic developlment?

302. ## AP Calculus

integrate |sint(t^2)| dt with 0

303. ## calculus

find the derivatives F(x)=8ln(x^5-2x)

304. ## science

A 250 kg object is acceelerating at 2.8 m/s2. What force was required to achieve this?

305. ## European History

Hi I just wanted to know if there is any evidence that Stalin used the fear/hatred of Kulaks to eradicate other political and social opponants... Thanks ps. If you could include any sources to support this it would REALLY help

306. ## Science

A car travelling at 40mph, and it speeds up to 65mph in 0.2hrs, how far does it travel?

307. ## math

2) A ball is hit at an angle of 36 degrees to the horizontal from 14 feet above the ground. If it hits the ground 26 feet away (in horizontal distance), what was the initial velocity? Assume there is no air resistance.

308. ## Chemistry

A sample of iron with a mass of 75.66g and an initial temperature of 15.38C gains 10480 Joules. What is the final temperture?

309. ## Science

what is biomass?

310. ## Microbiology

How would you determine whether a colony was a containminant on a streak plate?

311. ## Finite Math

The weekly take-home pay (in dollars) for 20 graduate teaching assistants at University Z is as follows: 500.75, 217.43,488.25, 405.78 485.46, 495.48, 370.75, 435.40 479.65, 482.56, 470.28, 489.90 382.50, 500.75, 465.32, 481.25 506.43, 225.50, 504.38,

312. ## Math

25 pea pods were broken apart and the number of peas in each pod recorded. the record looked as foolows: # of peas: 2,3,4,5,6 and frequency; 7,9,5,3,1 a. does this data appear to be skewed? b. What is the model class for theis survey?

313. ## science

if we mix 2 substance A and B of 30 degrees celsius and 70 degrees celsius respectively.what will be the temp of the mixture

314. ## sociology

Why lighter skins people thought that they are superior to all others.?

315. ## Science

What causes a penulum to continue swinging? Answer In 5 sentences

316. ## Science

Answer in 5 sentences What causes a pendulum to continue swinging?

317. ## algebra

The question is: find f(x+h) for each and the function given is f(x)=x^3+x after you turn it into f(x+h)=(x+h)^3+(x+h) how do you multiply out the cube?

318. ## math

how would you solve this equation? 294 sin^2 theta = 196 sin 2 theta

319. ## algebra 2

what is 7^1/2 divided by 7^3/5

320. ## Algebra II

((x-1)/3x+15))-((x+3)/(5x+25)) HOW TO SIMPLIFY THAT???

321. ## math

if i am solving a linear combanation nd it is y=-2+5 and 2x+7y

322. ## computer science

what are the advantages and disadvantages for having multiple versions for one site?

323. ## Math

Karla walks 8/10 mile to the library. About how many miles does she walk?

324. ## English

1. The guide (lead, led) the hikers to the river. 2. Marlo has (passed, past) the fitness test with flying colors. 3. By the time we got to the store, it was (already, all ready) closed. 4.Honesty is just one of the (principals, principles) of Tamika's

325. ## Math

A picture of a statue is drawn to scale 1:5 If the height of the statue in the picture is 5/6, what is the actual height of the statue?

326. ## human services

i need to write a paper on a time i was discriminated against and how it changed or did not change i am at a loss any help

327. ## Chemistry

Explain exactly how you would make 1 liter of a .10 M acetic acid solution using vinegar from the lab as the stock solution to be diluter.

328. ## english

what does limerick and ballad mean ?

329. ## World history

what was the foreign policy of william the 2nd

330. ## World history

why did the revolution of 1900s take place

331. ## english

What type of poem is this : Mary Muddles likes splashing in puddles

332. ## polygons

can you help me unscramble this word loav

333. ## science

if you observe that the air pressure is decreasing, what type of weather will it bring?

334. ## algebra 2

what is 7^1/2 divided by 7^3/5

335. ## spelling

what are ways to sort the words scene, muscle, cereal, and recital?

336. ## math

Find a value of n when the sq. root of n^2 is NOT n.