Questions Asked onNovember 18, 2010

1. college chemistry

To dilute a solution from 0.600 M to 0.100 M, the final volume must be A. 1/6 the original volume. B. 0.7 L. C. More information is needed to answer this question. D. 6 times the original volume. E. 60 L.

2. Physics

A weather ballon is designed to expand to a maximum radius of 20 m at its working altitude, where the air pressure is 0.030 atm and the temperature is 200 K. If the ballon is filled at atmospheric pressure and 300 K, what is its radius at liftoff?

3. Chemistry

A mole of methane reacts with 64g of oxygen at 1 atm, 425 K. There are two ways in which methane can react with oxygen. It can either form water vapor and carbon dioxide or water vapor and carbon monoxide. After reaction the final gas density is 0.7282

4. physics

a child is sliding on a sled at 1.5m/s to the right. You stop the sled by pushing on it for 0.50 s in a direction opposite to its motion. If the mass of the child and the sled is 35kg. what average force do need to apply to stop the sled. Use the concepts

5. Physics

Three children are trying to balance on a seesaw, which consists of a fulcrum rock, acting as a pivot at the center, and a very light board 6.0 long . Two playmates are already on either end. Boy A has a mass of 50 , and girl B a mass of 35 . Where should

6. physics

A 0.38-kg mass attached to a spring undergoes simple harmonic motion with a period of 0.63 s. What is the force constant of the spring?

7. Chemistry

help please! At 2200°C, K = 0.050 for the following reaction. N2(g) + O2(g) 2 NO(g) What is the partial pressure of NO in equilibrium with N2 and O2 that were placed in a flask at initial pressures of 0.75 atm and 0.30 atm, respectively?

8. physics

Child weighs 29 kg on a swing supported by two chains. Another child pulls swing back to the chains to make 30 degree angle with the vertical. What force is exerted by each chain

9. calculus

Coroners estimate time of death using the rule of thumb that a body cools about 2 degrees F during the first hour after death and about 1 degree F for each additional hour. Assuming an air temperature of 78 degrees F and a living body temperature of 98.6

10. geometry

IF AB=10 UNITS AB= 8 UNITS AC= 12 UNITS ED= 4.5 UNITS IF ANGLE AED= 100 DEGREES WHAT IS THE MEASURE OF ANGLE DEC

11. physics

A 52 g mountain climber, start from rest, climbs a vertical distance of 730 m. At top, she is again at rest. In the process, her body generates 4.1*10^6 J of energy via metabolic processes. Her body acts like a heat engine with efficiency ( W/Q_h.) W is

12. Chemistry 101

A flask containing a mixture of CH4(g) and NH3(g)is cooled. At -33.3c a liquid begins to form in the flask. What is the liquid? NH3(g) or CH4(g)

asked by Evette C.
13. trig

find exact value using sum or differnce equations. tan(19pi/12)

14. Chemistry

How many liters of O2 gas, measured at 772 mmHg and 20 degrees C, are required to completely react with 2.4 mol of Al?

15. physics

A 25 kg chair initially at rest on a horizontal floor requires 393 N horizontal force to set it in motion. Once the chair is in motion, a 301 N horizontal force keeps it moving at a constant velocity. a) Find the coefficient of static friction between the

16. physics

A 905 kg test car travels around a circular track with a circumference of 3.25 km. If the magnitude of the force that maintains the car's circular motion is 2140 N, what is the car's tangential speed?

17. physics

A ball is thrown straight upward and returns to the thrower's hand after 2.20 s in the air. A second ball is thrown at an angle of 31.0° with the horizontal. At what speed must the second ball be thrown so that it reaches the same height as the one thrown

18. physics

The position of a mass oscillating on a spring is given by x = (5.6 cm) cos [2πt / (2.03 s)]. (a) What is the period of this motion? (b) What is the first time the mass is at the position x = 0?

19. chem

The bottom of a box has a surface area of 31.4 cm2. The mass of the box is 47.1 kilograms. Acceleration due to gravity at sea level is 9.80 m/s2. What pressure is exerted by the box where it rests? how do i solve this?

20. english

What type of literary or dramatic works did William Shakespeare write? burlesque pantomime satire Restoration comedy heroic drama Elizabethan drama autobiography

21. Calculus

Use a linear approximation (or differentials) to estimate the given number. (32.06)^4/5

22. chemistry

A possible mechanism for the overall reaction Br2 (g) + 2NO (g) -> 2NOBr (g) is NO (g) +Br2 (g) (equilibrium arrows: on top it says k1 and on bottom k-1) NOBr2 (g) (fast) step 1 NOBr2 (g) + NO (g) ->(on top of arrow k2) 2NOBr (slow) step 2 the question:

23. Pre Calc

7. The Sandusky Little League uses a baseball throwing machine to help train 10-year old players to catch high pop-ups. It throws the baseball straight up with an initial velocity of 48 ft/sec from a height of 3.5 ft. a. Find an equation that models the

24. math

I need to simplify the following rational exponent: (64n^9)^2/3 I've done the following but don't think this is right: = 3|64n^18 = 4n^2.62 I don't know how to type in the root symbol so I used | to mean root. Can someone please verify this and if

The kinetic energy of a 50 newton object resting on the edge of a cliff 30 meters high is?

26. physics

After 10.0 s, a spinning roulette wheel at a casino has slowed down to an angular velocity of +1.74 rad/s. During this time, the wheel has an angular acceleration of -5.1 rad/s2. Determine the angular displacement of the wheel.

27. trig

find exact value cos(13pi/15)cos(-pi/5)-sin(13pi/15)sin(-pi/5)

28. english

root word :lantry The definition of root is: worship A word using this root is: autolantry the definition of autolantry ,I cant find it ,can you help me look it up the definition or find another word using the root .thank you

29. chem class

The value of Keq for the following reaction is 0.25: SO2 (g) + NO2 (g) SO3 (g) + NO (g) The value of Keq at the same temperature for the reaction below is __________. 2SO2 (g) + 2NO2 (g) 2SO3 (g) + 2NO (g) answer is 0.25 how do i figure this out?

30. physics

The figure below shows an initially stationary block of mass m on a floor. A force of magnitude F = 0.570·mg is then applied at upward angle è = 22°. (a) What is the magnitude of the acceleration of the block across the floor if (a) ìs = 0.600 and ìk

31. Physics

A bicycle wheel of radius .7m is rolling without slipping on a horizontal surface with an angular speed of 2 rev/s when the cyclist begins to uniformly apply the brakes. The bicycle stops in 5 s. Through how many revolutions did the wheel turn during the 5

32. Physics

When the three blocks in the figure below are released from rest, they accelerate with a magnitude of 0.370 m/s2. Block 1 has mass M, block 2 has 5M, and block 3 has 5M. What is the coefficient of kinetic friction between block 2 and the table? block 1 is

33. english

I think that paragraph 3 is more effective than paragraph 1 because it is structured in a better manner and has better rhythm than paragraph1. It also has better structures sentences than paragraph 1. For example in paragraph 1 sentences like, ‘My Aunt

34. science

what is the momentum of a 57 kg cheetah running north at 27 m/s?

35. nonfiction

What does seattle say about integrating white and native american cultures?

36. Geometry

Write an indirect proof that an obtuse triangle does not have a right angle. Given: Triangle RST is an obtuse triangle. Prove: Triangle RST does not have a right angle. Let angle S be an obtuse angle. Assume Triangle RST has a right angle. Let angle R be a

37. Physics

The 1.4 kg, 40-cm-diameter disk in the figure below is spinning at 260 rpm. How much friction force must the brake apply to the rim to bring the disk to a halt in 4.5 s?

38. 5th grade math

What didgit is in the thousands place 1,234.5678 would it be 1 or 7

39. chemistry

What volume of O2 at 912 mmHg and 33 degrees C is required to synthesize 11.0 mol of NO?

40. physics

A girls sits on a tire that is attached to an overhanging tree limb by a rope. The girl's father pushes her so that her centripetal acceleartion is 3.8 m/s2. If the length of the rope is 3.3 m, a) what is the girl's tangential speed? b) If the magnitude of

41. chem class

Nitrosyl bromide decomposes according to the following equation. 2NOBr (g)(equilibrium arrow) 2NO (g) + Br2 (g) A sample of NOBr (0.64 mol) was placed in a 1.00-L flask containing no NO or Br2. At equilibrium the flask contained 0.46 mol of NOBr. How many

42. chemistry

25.5g C7H11NO7S (4-nitro-2-toluenesulfonoic acid dihydrate) in 1.00*10^2g H2O (nonionizing solute)

asked by Jose Reyes
43. physics

A 3.5 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 19 N at an angle θ = 45° with the horizontal. The coefficient of kinetic friction between the block and floor is 0.25. (Assume the positive direction is to

44. Geometry

Complete the indirect proof. Given: Rectangle JKLM has an area of 36 square centimeters. Side JK is at least 4 centimeters long. Prove: KL

45. Physics

A Ferris wheel with radius 9.8 m rotates at a constant rate, completing one revolution every 36.6 s. Suppose the Ferris wheel begins to decelerate at the rate of 0.227 rad/s2 when a passenger is at the top of the wheel. Find the magnitude and direction of

48. Chemistry

Two samples of water of equal volume are put into two dishes and kept at room temperature for several days. The water in the first dish is completely vaporized after 2.8 days while the water in the second dish takes 8.3 days to completely evaporate.What

49. physics

Two masses are connected by a string. Mass A is on a flat roof and mass B is hanging over the edge of the roof. The mass on the roof is 15 kg and the hanging mass is 5 kg. The edge of the roof is 100 m above the ground. The two masses are initially at rest

50. physics

When a 0.30-kg mass is attached to a vertical spring, the spring stretches by 15 cm. How much mass (total) must be attached to the spring to result in a 0.86-s period of oscillation?

51. biology

Why can maintaining homeostasis be particularly challenging for multicellular organisms?

52. math-optimal diameterand height

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

53. chemistry

How much heat is gained in joules by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 12 C

54. 3rd grade math

Emma has 36 feet of fence. She wants to make the largest rectangular area possible for her rabbit to play in. What length should she make each side of the rabbit pen? Show your work and explain how you found the largest area.

55. accounting

a partial balance sheet and income statement for King Corproation follow: KING CORPORATION Partial Balance Sheet December 31,2009 Assets Current assets: Cash $33,493 Marketable securities$215,147 Trade receivables, less allowance of $6,000$255,000

56. Physics

Find the heat necessary to change 2.5kg of water (ice) at -2 degrees C to steam at 105 degrees C. specific heat ice= 2060 specific heat water= 4180 specific heat steam= 2020 heat of fusion= 3.34X10^5 heat of vaporization= 2.26X10^6

57. chemistry

what is the hybridization of BrO2+

58. spanish

1)El hijo de tu madre y tu padrastro? ........... 2)la hija de tu madrastra o tu padrastro?....... can you help me answer these question?

59. geometry

A rectangular rug covers the floor in a living room. One of the walls in the same living room is pained blue. Are the rug and the blue wall parallel?

60. Geometry

Write an equation of a line in point-slope form for a line parallel to y = 6x + 2 that contains P ( 5,9).

asked by Jami quebedeaux
61. Physics

Given: 90m skid mark .50 coefficient of friction between the tires and skid mark How fast is the car moving when the brakes initially applied?

62. chemistry

H2C=CH2(g) + H2(g) C2H6(g) Adding a small amount of platinum powder greatly increases the rate of the reaction above. How might the platinum be affecting the rate of the reaction? (Select all that apply.) 1) It increases the concentration of the reactants.

63. geometry

Jackson is creating a water garden surrounded by a triangular patch of grass. If the pond will take up the space indicated by the circle, how many square feet of sod will he need to complete the garden (use 3.14 for and round your answer up to the next

64. Math: Need Answer to study for a quizz. Help ASAP

Estimate the area under the curve f(x)=x^2-4x+5 on [1,3]. Darw the graph and the midpoint rectangles using 8 partitions. Show how to calculate the estimated area by finding the sum of areas of the rectangles. Find the actual area under the curve on [1,3]

65. Accounting

On June 1, Melendez Company borrows $90,000 from First Bank on a 6-month,$90,000, 12% note. Instructions (a) Prepare the entry on June 1. (b) Prepare the adjusting entry on June 30. (c) Prepare the entry at maturity (December 1), assuming monthly

asked by Sharon Lawson
66. Physics

Block B in the figure below weighs 713 N. The coefficient of static friction between block and table is 0.20. Assume that the cord between B and the knot is horizontal. Find the maximum weight of block A for which the system will be stationary.

67. chemistry

23) The equilibrium constant for the gas phase reaction 2NH3 (g) N2 (g) + 3H2 (g) is Keq = 230 at 300 °C. At equilibrium, __________. A) reactants predominate B) products predominate C) only products are present D) roughly equal amounts of products and

68. physics

A man of mass 61.6 kg stands on a scaffold supported by a vertical rope at each end. The scaffold has a mass of 15.9 kg and is 2.0 m long. Suppose the man stands to the right from the middle of the scaffold that is a distance one sixth of the length of the

69. physics

A museum curator moves artifacts into place on many different display surfaces. Use the values in Table 4-2 in the textbook to find Fs,max and Fk if you were to move a 157 kg aluminum sculpture across a horizontal steel platform. Fs,max: Fk:

70. physics

A 33 N force acting at 90° and a 44 N force at 60° are applied concurrently at a point P. What is the magnitude and direction of the resultant force?

write down five" th"words/

72. math

There's a circle with that has a dot in the middle with two line going to the left and right that's is 16 m. I have to find the area of the circle. I have to give that exact area and an approximate area to the nearest square unit. Help?

73. PHYSICS

A bat flies toward a wall at a speed of 3.5 m/s. As it flies, the bat emits an ultrasonic sound wave with frequency 30.5 kHz. What frequency does the bat hear in the reflected wave? kHz

74. Chemistry 20 TRUE OR FALSE

1) A conductivity apparatus is not that useful in separating acids from bases because both solutions conduct electricity. True or false 2)The hydronium ion contains a water molecule bonded to a hydrogen ion. True or False

75. Statistics

A bowl contains 3 red balls, 2 blue balls and 5 white balls. A ball is selected and the color noted. Then it is replaced. A second ball is selected and its color noted. Find the probability of getting a red ball and a blue ball.

76. Calculus

a farmer has 160 ft of fence and wants a pen to adjoin to the whole side of the 130 ft barn. what should the dimensions be for maximum area?

77. Physics

In Fig. 6-25, blocks A and B have weights of 49 N and 21 N, respectively. (a) Determine the minimum weight of block C to keep A from sliding, if µs between A and the table is 0.20. (b) Block C suddenly is lifted off A. What is the acceleration of block A,

78. chemistry

Consider the following reaction at equilibrium: 2NH3 (g) N2 (g) + 3H2 (g) ΔH° = +92.4 kJ Le Cha ^ telier's principle predicts that increasing the temperature will shift the reaction to the. a) stays same b)leftc)none d)right

79. Chemistry

What volume of O2 at 912mmHg and 33 degrees C is required to synthesize 11.0 mol of NO?

80. elizabeth high school

. An admissions director wants to estimate the mean age of all students enrolled at a college. The estimate must be within one year of the population mean. Assume the population of ages is normally distributed. Determine the minimum required sample size to

81. physics

A child exerts a tangential 41.9-N force on the rim of a disk-shaped merry-go-round with a radius of 2.25 m. If the merry-go-round starts at rest and acquires an angular speed of 0.086 rev/s in 3.57 s, what is its mass?

82. physics

Two blocks of equal mass m are tied to each other through a light string . One of the blocks is pulled along the line joining them with a constant force F . Find the tension in the string joining the blocks.

83. statistics

A random samples of 250 bolts manufactured by machine A and 200 bolts manufactured by machine B showed 24 and 10 defective bolts respectively. Test the hypothesis that the machines are showing difference qualities of performance. Use 5 per cent level of

84. physics

How much work must you do to push a 13 kg block of steel across a steel table (\mu_{{\rm k}}=0.6) at a steady speed of 1.3 m/s for 2.6 s?

85. Chemistry

What are the sizes of BCl3, CCl4, NCl3, and Cl2O in comparison to one another. For example BCl3

86. Chemistry

Calculate the temperature change in the water upon complete melting of the ice. Hint: Determine how much heat is absorbed by the melting ice and then use q =mC*Delta T to calculate the temperature change of the 314 g of water. under the following

87. HCR 220

How do effective medical compliance plans limit the risk of professional liability?

34x(nx2)=680

89. Psychology/Essay question

Dissent and altruism are a matter of personal conviction, but situation factors are involved also. Analyze five situational factors that are involved when a person decides to "rock the boat" and choose conscience over conformity. I do not understand what

90. physics

A particle executes simple harmonic motion with an amplitude of 10 cm and time period 6 s. At t=0 it is at position x=5 cm going towards positive x direction . Write the equation for the displacement x at time t. Find the magnitude of the acceleration of

91. Chemistry

A sample of gas has a mass of 0.555 g. Its volume is 119 mL at a temperature of 90 degrees C and a pressure of 744 mmHg. What is the molar mass of the gas?

92. Chemistry

Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 30. cm3. If the combustion of this mixture releases 980. J of energy, to what volume will the gases expand against a constant pressure of 640. torr if all the

93. physics

A 2kg. lump of clay traveling at a speed of 20m/s collides with and sticks to a 5kg. lump of clay initially at rest and hanging from a string. Find the final speed of the new lump of clay. How high will the clay swing after the collision? (initial) m1=2kg.

asked by please just check my work
94. physics

crate weighs 823 N rests on plank that makes a 25 degree angle with the ground. Find components of crate's weight parallel and perpendicular to the plank

95. Physics (very long question)

Two astronauts (Fig. P8.68), each having a mass of 84.0 kg, are connected by a 10.0 m rope of negligible mass. They are isolated in space, moving in circles around the point halfway betwen them at a speed of 5.80 m/s. Treating the astronauts as particles,

96. Chemistry

The following reaction has an equilibrium constant of 0.020 at a given temperature. 2HI(g) I2(g) + H2(g) If you have 1.00 mol HI(g) in a 0.750-L container initially, how many moles of HI(g) will be present when the system reaches equilibrium?

97. accounting -annual amount

The exhaust-gas temperature leaving a continuously operating furnace is 260°C, and a proposal is being considered to install a heat exchanger in the exhaust-gas stream to generate low-pressure steam at 105°C. the question to be investigate is whether it

98. DIFF. CALCULUS

A particle is moving along the parabola 4y = (x + 2)^2 in such a way that its x-coordinate is increasing at a constant rate of 2 units per second. How fast is the particle's distance to the point (-2, 0) changing at the moment that the particle is at the

99. Physics

The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.59 m and 0.98 m, respectively. The respective rotational speeds are 456 rev/min and 4143 rev/min. Calculate the speeds of the tips of both rotors. main rotor: tail rotor:

137. CHEM

How much heat is released in the formation of 10 liters of NH3(g) at 25 C and 1 atm, given : 2N2+3H2 ----> 2 NH3 HEAT OF FUSION IS - 92.6 KJ show steps please

151. finance

A company wants to build a new factory for increased capacity. Using the net present value (NPV) method of capital budgeting, determine the proposal’s appropriateness and economic viability with the following information: • Building a new factory will

152. chemistry

The rate law of the overall reaction. A + B -> C is rate = k[ A ]^2 Which of the following not increase the rate of a chemical reaction? a) increasing the temperature of the reaction b)increasing the concentration of reaction A c)adding a catalyst for the

If a circle has a diameter of 7inches, what is the circumference rounded to the nearest whole number? Use pi=3.14

154. Math

The side length,s, of a cube is related to its volume, v, by the formula s=v^1/3. A cube box when filled with materials has a volume of 729 cm2. What is the side lenth of the cube box used? Please help me step by step with this. I don't know where to start

155. Calculus

1)Find the particular solution of the differential equation xy'+3y=80xlnx (x>0) satisfying the initial condition y(1)=4 2)Find the particular solution of the differential equation y'−1y=−5x+3 satisfying the initial condition y(0)=3.

156. psy210

In the 1970s, approximately __________ of American couples reported that they cohabitated before getting married; in the year 2,000, approximately __________ reported that they had cohabitated before getting married.

157. physics

A container of volume 14.2 cm3 is initially filled with air. The container is then evacuated at 0oC to a pressure of 32 mPa. How many molecules are in the container after evacuation if we assume that air is an ideal gas?

158. Chemistry

convert @5g of NaCl into moles

159. Physics

Use the Second law of thermodynamics to explain why an ice cube cools off your warm soda.

5a+7a²+3a

161. English

I really hope you can check these sentences for me. I tried to rephrase the beginning of chapter five of Shelley's Frankenstein. 1) The scene takes place during a dreary night. It is one in the morning and the rain taps dismally (I need a synonym) against

162. Calculus

Find the particular solution of the differential equation y'=(5x+21y)/7x satisfying the initial condition y(1)=5.

221. statistics

When a card is selected from a deck, find the probability of getting a diamond, a face card or a diamond, or a club and a king?

222. math

Describe the misuse or misinterpretation of statistics that may be involved. An ad for arcbrite claims that the detergent gets clothes twice as clean. I think it is wrong because there is no proof that the clothes get twice as clean. Also no clothes can be

223. math

Is the exact area of a circle with an 16 m radius 32 m squared? And what would be the approximate area be?

224. calculus

g(x)=(x^3)-(3x^2)+17 a)find and classify all critical points of g(x) using exact with x and y values. b)for what values of x is the function concave down; again exact x and y values.

asked by matt dunlap
225. accounting -annual amount

The exhaust-gas temperature leaving a continuously operating furnace is 260°C, and a proposal is being considered to install a heat exchanger in the exhaust-gas stream to generate low-pressure steam at 105°C. the question to be investigate is whether it

sally x amount of money. bob has three times as much as sally, less than 14.62. write an expression using x to see how much bob has.

227. Direct Labor: Variable or Fixed Cost?

Throughout the corporate world, businesses are transforming labor into a more flexible (and variable) cost. Among such companies are Hewlett-Packard, General Electric, DuPont, Sun Microsystems, and British Airways. Discuss whether direct labor is a fixed

228. Science

What is a simple experiment to determine if a solid white substance is a protein or a carbohydrate

asked by I can't tell u
229. 0303 math

Solve the system by the substitution method y=-2x-4 5x-2y=-1

230. Science

Give an example of what you have determined is a bougus analysis using-quasi-scientific jargon, but has little or no objectivity.

231. math

Circla all numbers in which the ones digit is twice the hundreds digit. 842 824 482 284 248 933 977 337 379

232. Tx. History

What was the American experience?

233. being kind

why is being kind important. justify your response. is being kind important because it allows others to feel good about you and you to feel good about yourself?

234. PHYSICS

a) At T = 12°C, how long must an open organ pipe be to have a fundamental frequency of 300 Hz? i got answer for part a that is .5642m but did not get for part b. (b) If this pipe is instead filled with helium at 20°C, what is its fundamental frequency?

b=a+4

236. Spanish

Can you make a negative command and another command (negative or affirmative) with a double object pronoun. They are in a writing about why tattos are in fashion and what they want to express.

237. physics

Find the work for an isothermal expansion of 3.08 mol of an ideal gas at temperature of 18oC from pi = 4.55 atm to pf = 3.32 atm.

238. physics

Suppose I have a spring. I add a mass (m = 1.0 kg) and it is displaced by 15 cm. What is the spring constant k in units of (N/m)?

239. Logic

What would happen if Pinochio (I don't think i spelt that right) said "My nose will grow"? Please help me figure this out!

240. U.S history

My two colonies are New Jersey and Pennsylvania.How are they similar and how are they different?Which one would you live in,and why?

A fair die is rolled 16 times. What is the expected sum of the 16 rolls?

242. Chemistry

What is 17.4 psi converted to atm?

243. Chemistry

What is 832 torr converted to atm?

244. English

A: What do you think of planting trees? 1. I think it is good for health. 2. I think we can live in better places because of the trees. 3. I think we need to plant more trees to live a healthy life. 4. I think we should try our best to preserve the earth

245. chemisrry

how many atoms of H are ther in 4.3g CH4

asked by dee dee
246. Science

Is there anyway I can create something similar to acid rain for my experiments? Thanks ( I was thinking of mixing water with vinegar and leaving it there for few day)

258. math

how can you write each improper fraction as a mixed number in simplest form.

259. English

I'd like to know if the following statements are possible.Thank you. 1) I wait fifteen minutes for my mum to arrive and drive me home. 2) I return home by bus. 3) He worked three hours overtime last Saturday. He was on overtime last Saturday. 4)He is on

260. research and evaluation class

describe joint probability for independent events and give an example of how you would calculate it. How is this different than conditional probability? The following payoff table gives the return on three alternative business decisions based on three

261. math

Sevnety-eight players entered a single elimination tennis tournament.How many matches were played to determine the overall champ? please help me...and if u get the answer can you explain how you got it with a rule or a pattern

262. Spanish

2. Nunca como allí porque la comida es ______. a. buena b. horrible c. sabrosa d. malo D? 7. Me gustan los sandwiches de jamón y queso. Son muy _________. a. buenas b. malos c. sabrosos d. horribles C 8. ____ ayudan mucho en casa. a. Tú y yo b. Ana y yo

263. LIT/210

What are some additional methods that I could use during my lit course to write about the literature I will be reading? I need four, but I only could think of two. These are the two I have so far. 1)I have thought about using a reading journal to write

264. math

I get confused on this. What type of chart would I use that would show the relationship between age and deaths/1000 people from car accidents. We are provided age groupings of 1-14, 15-24, 25-44, 45-64, and 65+ with this we also have the death rates for

265. eth 125

Student writes about two Hispanic American groups from Ch. 9 of the text

266. Math

What would be an expression that can be used to show how many lengths of 5/8 inch lengths of string can be cut from a 15 inch length of string

267. Downsizing and Fixed Costs

Industry downsizing has been a major part of the corporate world, even government agencies are downsizing. GovernmentExecutive website "covers the business of the federal government and its huge departments and agencies - dozens of which dwarf the largest

268. Ms. Sue please

Ms. Sue I had asked this of you already and you said a histogram would be best but I get confused on this and when I enter it into excel it comes out wrong. The data we have is for age 1-14 death rate per 1000 is 4.6, 15-24 rate is 6.2, 25-44 rate is 16.6,

269. C programming

Help would be grately apreciated on this problem thank you! Backgound The employees can be any one of the two types: 1) Full-Time Salaried (FTS) and 2) Part-Time Hourly (PTH). Currently, there are totally 1050 FTS employees and 274 PTH employees in a

270. college

I will like to know are these correct sentences. Their are three kids in the room. We have been married for 20 years, and are relationship is as strong as ever. I’m having trouble with my car. Can you give me some advise? The diplomats are doing what

271. THE TWENTIETH CENTURY PART2

Notes that begin a phrase before a downbeat are known as pick-up notes or a/an A. anacrusis. B. duck walk. C. shuffle groove. D. call and response.

asked by AKE KE
272. Calculus

The volume of a cone of a radius r and height h is given by V=(3.14/3)(r^2)(h). If the radius and the height both increase at a constant rate of .5 cm per second, at what rate, in cubic cm per second, is the volume increasing when the height is 9cm and the

273. pre calculus

simplify sin(2 pi/3+x)

274. geography

Do you know where I can find an article no older than 2 years about economics in latin america? thank you

275. L.A.

what is the definitons of the word analyical and can anyone help me use it the word in a sentence.I try to lok on the wed but i could not find the word.

276. mathzzz

3(-9) whats the answer would it be 28-

277. Algebra

0 = 2x^3 + x - 3 solve for x

278. us history

Think about two colonies.How are they similar?How are they different?Decide which colony you would like to live in.

279. math

Sevnety-eight players entered a single elimination tennis tournament.How many matches were played to determine the overall champ? please help me...and if u get the answer can you explain how you got it with a rule or a pattern

280. Writing

What type of tone would be appropriate for an informal report?

281. geometry

a rectangle with a length of 32 units and a width of 18 units; find the length of a diagonal.

282. Anthropology

What are centralized political systems and how do they operate?

283. English

I really need to know if my sentences are correct. Thank you very much. 1)Now the reality with which he is confronted fills him with horror and disgust. 2) He is disgusted and horrified by his creation- He rushes from the room and returns to his

284. English English plz

please check my work. "Paradise lost" is a very interesting and religious story. The write make a point to describe the unfaithfulness of angles and fall of human from the heaven. The basic theme of the poem is man‘s first disobediently to God. “Of

285. government

Which of the following falls under the authority of Congress?

286. English

A: What do you think of a solar house. 1. I think the solar house makes money for us. 2. I think we can save energy thanks to the solar house. 3. I think we don't need to spend money on electricity. 4. I think we don't need to pay the electricity fee. 5. I

287. English

(1) Are you doing any volunteer work? How about your friends? 1. Yes, I am. They are doing (some) volunteer work, too. 2. No, I'm not. They are not doing (any) volunteer work, either. (2) Do you do any volunteer work? How about your friends? 1. Yes, I do.

288. ALgebra

multiply. (x+2)(x-2)(x^2+4)

289. compent

I need two paragraph about how interest rates affect our purchasing decision. identify the topic sentence in each by underlining it.

290. Precalculus

State the amplitude, period, and phase shift of the function. h(t)=-9cos(7t-Pie/5) I got the amplitude and the period. For the phase shift I got (Pie/5)/7 but its wrong. Can someone tell me what I did wrong?

291. algebra

2 over 3 = 11 over 8 +b

this year spring parade has a marching band, pairs of dancers, a float with jugglers, a dozen circus clowns, a girl scout troop a boy scout pack, and a championship football team. Directions: Read the description of each group carefully and decide how many

293. math

There were 29 students who completed a survey. There were 15 boys and 14 girls. One survey was picked at random. To the nearest hundredth, what is the probability it was completed by a girl? A.0.48 B.1.93 C.0.52 D.0.93

294. math

Sevnety-eight players entered a single elimination tennis tournament.How many matches were played to determine the overall champ? please help me...and if u get the answer can you explain how you got it with a rule or a pattern

295. history

Why would some people find it wrong to have a woman president for to represent their country?

296. math

lim as x heads toward infinity of x^200/e^.02x

297. MATH HELP ME 1st

(-6) + (-4) = i think the answer is 10 or it could be -10

298. math

Suppose that Helen buys three items for 47 cents each, five items for 71 cents each, and two items for 1.21 each. What was the average cost of all the items she bought? Would the answer be 74 cents?

299. English Help

Please check grammatical errors. "Paradise lost" is a very interesting and religious story. The write make a point to describe the unfaithfulness of angles and fall of human from the heaven. The basic theme of the poem is man‘s first disobediently to

300. chemistry

how do you find delta G the same way you find max work?

301. math

A box and whisker graph showing beef hotdogs with high and low of 110-190 and meat hotdogs with high and low of 105-195 and poultry hot dogs with 85-170. This suggests that poultry dogs have fewer calories per dog than either beef or meat hotdogs. Yet, one

302. college

I will like to know is this pargraph is correct. Why are many students choosing to pursue their college degrees using their home computers. Benjamin Franklin said; A penny saved is a penny earned.” This principle applies to the american and foreign

303. chemistry

if i have a molar concentration of acetic acid.046 mol/L how do i get the calculated molar mass of acetic acid

304. college

the perimeter of a rectangle is twice the sum of its width and it length. the perimeter is 40meters and its lenght is 2 meters more than twice its width.

305. L.A.

what are some sentences of the word barbarous

306. organic chemistry

Something that isn't consumed by the reaction (so say A) is dissolved at the same time as something that is consumed by the reaction (B) in a solvent, so that they are in the same phase...what is this reaction an example of? What is the most pervasive

307. math

find the domain and all the critical points of the function. a) x(the square root of (4-x^2)) The domain is x must be less than or equal to positive or negative two but when i go to do the derivative to find the critical points i always get stuck. can

308. English

1. The energy comes from sunlight. 2. The energy comes from the sunlight. (Which one is right? Do we have to use 'the' or not?)

309. Geography

We have to define the stages of economic growth and place one Latin America country under each stage. One of the stages is capital intensive. Wealth is created through the efficient use of money. Industrailziation manufacturing occurs. Investment/loans to

310. Computers C

Backgound The employees can be any one of the two types: 1) Full-Time Salaried (FTS) and 2) Part-Time Hourly (PTH). Currently, there are totally 1050 FTS employees and 274 PTH employees in a company. The company plans to add up to 50 new employees FTS