# Questions Asked onMay 25, 2011

1. ## trig

A 2000 pound car is parked on a street that makes an angle of 12* with the horizontal (think it's a street on a hill). a) find the magnitude of the force required to keep the car from rolling down the hill. b) Find the force perpendicular to the street.

2. ## physics

A motorcycle has a constant speed of 24.4 m/s as it passes over the top of a hill whose radius of curvature is 135 m. The mass of the motorcycle and driver is 364 kg. Find the magnitude of (a) the centripetal force and (b) the normal force that acts on the

3. ## physics

A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 29.4 . The acceleration period lasts for time 9.00 until the fuel is exhausted. After that, the rocket is in free fall. Find the maximum height

4. ## Pre Calc

Find the work done by a force F of 30 pounds acting in the direction (2,3) in moving an object 3 feet from (0,0) to the point in the first quadrant along the line y = (1/2)x. The answer is 85.38 foot-pounds. I just need to figure out how to get the answer.

5. ## Chemistry

Determine Kc for the following reaction: 1/2N2(g) + 1/2O2(g)+ 1/2Br(g) NOBr(g) from the following information (at 298K) 2No(g) N2(g) + O2(g) Kc = 2.1x10^30 NO(g) + 1/2Br2(g) NOBr(g) Kc = 1.4

6. ## Chemistry

What is the concentration of NO3- ions when equal volumes of 0.1M AgNO3 and 0.1M NaCl are mixed together?

7. ## trig

An aifplane is flying on a compass heading (bearing) of 170* at 460 mph. A wind is blowing with the bearing 200* at 80mph. a) Find the component form of the velocity of the airplane. b) Find the actual ground speed and direction of the airplane.

8. ## geometry

line xy bisects and is perpendicular to line ab and dc .line Ab = 48 in. line ap = 26 inches . what is the length of line xy

9. ## Chemistry

A 50.0- piece of ice at 0.0 is added to a sample of water at 8.0. All of the ice melts and the temperature of the water decreases to 0.0. How many kilograms of water were in the sample?

10. ## physics

A 870-kg race car can drive around an unbanked turn at a maximum speed of 41 m/s without slipping. The turn has a radius of 180 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 11000 N on the car. (a) What is

11. ## Chemistry

Will you check this answer for me? the half-life of strontium-87 is 2.8hr. What percentage of this isotope will remain after 8 hours and 24 minutes? ?? 34%

12. ## Chemistry

Starting with 0.3500mol Co(g) and 0.05500mol COCL2(g) in a 3.050 L flask at 668K, how many moles of Cl2 are present at equilibrium? Co(g) = Cl2(g) COCL2(g) Kc = 1.2x10^3

13. ## human resource management

1. Critically evaluate the job analysis that Mary conducted for the position of assistant manager. Has she used appropriate methods? What are the strengths and weaknesses of her efforts? 2. What kind of factors about Today's Fashion and its operations

14. ## geometry

A pyramid has a square base with sides length of b. The height of the pyramid is h. If the pyramid is enlarged by doubling the height while leaving the base unchanged, what is the effect on the volume of the pyramid? Will the volume triple? These are my

15. ## trig

A plane is is flying 240 mph heading N60°E. The wind is blowing S30°E at 30 mph. What is ground speed? What is the smallest angle in the triangle? What is the biggest angle in the triangle? What is the remaining angle in the triangle? What is the bearing

16. ## Chemistry

Please help! How many moles of hydrogen are needed to triple the volume occupied by 0.25 mol of hydrogen, assuming no changes in pressure or temperature

17. ## math

What is the sin of 495 degrees?

18. ## Geometry

The area of a regular hexagon is 35in.2. Find the length of the side.

19. ## Chemistry

Calculate how much heat 32.0 g of water absorbs when it is heated from 26.0°C to 73.5°C. In joules, and then we have to calculate calories too, how is that done? I was absent. Thanks so much!

20. ## chemistry

What minimum mass of HCl in grams would you need to dissolve a 2.5g iron bar on a padlock?

21. ## Physics

The water level in a vertical glass tube 1.40 m long can be adjusted to any position in the tube. A tuning fork vibrating at 440 Hz is held just over the open top end of the tube, to set up a standing wave of sound in the air-filled top portion of the

22. ## HISTORY

1. How did the rulers of the Canyon peoples deal with the environmental challenges that their region presented? A. They allowed high levels of citizen participation in the running of their local communities. B. They developed a remarkable level of exchange

23. ## maths....(mathematics..)

by prime factorisation method find the least positive number divisible by 700 and 364

24. ## Chemistry

HCONH2(g) NH3(g) + CO2(g) Kc= 4.84 at 400 K2(g) If 0.186 mol of HCONH2(g) dissciates in 2.16L at 400K, what will be the total pressure at equilibrium?

25. ## Physics I

A car can decelerate at -4.40 m/s2 without skidding when coming to rest on a level road. What would be the magnitude of its deceleration if the road were inclined at 12° uphill? Assume the same static friction coefficient.

26. ## Economics

The accompanying table shows a car manufacturer’s total cost of producing cars: Qty |TC| Variable Costs| Avg. Var. Costs| Avg. Total Costs| Avg. Fixed Costs 0 |\$500,000| ---- | ---- | ---- |---- | 1 |540,000 | 2 |560,000 | 3 |570,000 | 4 |590,000 | 5

27. ## algebra

what is the slope of line that passes through (-3,-8) and (0,6)

28. ## Chemistry

Calculate the heat change (q) in kJ for each reaction. Assume the density of the acid solutions is 1.00 g/mL and the heat capacity is 4.184 J/g*°C. i have the Ti and Tf..what equation do i use?

29. ## Social studies

Describe attitude of George Simpson and his wife towards natives peoples and Metis. how were their views racist? what impact did these views hve on simpsons? on red river settlement? George and his wife did not like the Metis and the Natives. Frances could

30. ## Chemistry

how do you calculate the quantity of heat gained or lost? 0.60 mol of steam condenses at 100°C

31. ## teacher aide

when working with behaviour disordered children in the classroom,the teacher aide can modify behaviour by a.praising them when they succeed. b.using the same techniques for every student. c.underestimating what the child can do. d.reinforcing the problem

32. ## Chemistry

the vapour pressure of a solution having 2g of solute X ( molar mass=32)in 100g of CS2(vapour pressure = 854 torr)is 848.9 torr. The molecular formula of solute is?

33. ## career management

When considering a post-secondary option, you should consult which of the following sources? A. your internal motivation B. family and friends C. reference materials D. all of the above

34. ## Activity Question

Was conflict over red river settlement inevitable? Yeah because I am sure Macdonnel would have still issued his Pemmican Proclamation no matter what. This question is like a trick question. How do I reword it, and my answer is not good. please help

35. ## Red River Settlement--Roles of the Women

What jobs did women do in the daily life of red river settlement? How does this relate to life for women colonists in the wilderness of upper Canada? Women and men worked side by side. The women helped in the grain harvest, using sickles to cut the wheat

36. ## statistics

A vending machine dispenses coffee into a sixteen ounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.03 ounces. You can allow the cup to overfill 10% of the time. What amount (in ounces) should you

37. ## science

Two point charges 8q and -2q are located at x=0 and x=l find the location on the x axis where electric field due to these two point charges is zero

38. ## Chemistry

The specific heat of toluene, C7H8, is 1.13 J/g K. How many joules of heat are needed to raise the temperature of 30.0 g of toluene from 10.4°C to 29°C? THANK YOU

39. ## math

Carbon disulfide is produced by the reaction of carbon and sulfur dioxide. 5C(s) +2 SO2(g) ---------> CS2(g) + 4CO(g) How many moles of CO would be made if you started with 10 moles of C?

40. ## Biochemistry

what will be the pH of a buffer prepared by mixing 600 ml of 0.1M sodium acetate solution and 40 ml of 0.2M acetic acid solution

41. ## Algebra

The equation of a mirror in a particular telescope is y= (x^2)/(520), where x is the radius (in cm). If the mirror has a diameter of 32 centimeters, what is the depth of the mirror?

42. ## Chemistry

It says to draw the structural formula CH3CH(OH)CH3 on my hw. What's the parenthesis in the formula?

43. ## geometry

The volume of a cone is 54 pi cubic inches. The radius and height of the cone are both reduced by a factor of 3 to create a new cone. What is the volume of the new cone? Is the volume of the new cone 18pi cu in A. 2 pi cu inches B. 6 pi cu inches C. 9 pi

44. ## Chemistry

When 0.5963g of a sample containing NaNO2 and some inert material is allowed to react with excess HSO3NH2, the volume of N2 gas produced is measured. The volume of N2 gas corrected to 298.15K and 100kPa is calculated to be 0.146L. Find the mass percent of

45. ## math

Simplify: 5/8 divided by 15/16 + 1/2

46. ## Physics

On earth, a certain type of bacteria doubles in number every 24 hours. Two cultures of these bacteria are prepared, each consisting initially of one bacterium. One culture is left on earth and the other is put on a rocket travelling at .866c relative to

47. ## Science

In gunea pigs , short har (L) is dominant to long hair (l) and heterozygous conditions of yellow coat (cy) and white coat (Cw) give cream coat. A short-haired, cream guinea pig is bred to a long-haired, white guinea pig, and a long haired , cream baby

48. ## history/ just need someone to read this

describe the reconstruction period and how is happened and if it had any gains. i have to post this a paragraph at a time. sorry The Reconstruction Period refers to efforts made in the US between 1865 and 1877 to restructure the political, legal and

49. ## Chemistry

A 22.0 g piece of aluminum at 0.0°C is dropped into a beaker of water. The temperature of the water drops from 92.0°C to 77.0°C. What quantity of heat energy did the piece of aluminum absorb? Please Help, I'm so lost :( Thank you

50. ## Chemistry

A 22.0 g piece of aluminum at 0.0°C is dropped into a beaker of water. The temperature of the water drops from 92.0°C to 77.0°C. What quantity of heat energy did the piece of aluminum absorb? Please Help, I'm so lost :( Thank you

51. ## Algebra

Write the equation of the line containing the given point and parallel to the given line. The equation of the line is y= Express your answer in the form y=mx+b. (7,8); x+7y=6 Express your answer in the form y=mx+b. (8,9); 5x+y=9 Express your answer in the

52. ## Algebra

The volume of a cone is 54 pi cubic inches. The radius and height of the cone are both reduced by a factor of 3 to create a new cone. What is the volume of the new cone? Is the volume of the new cone 18pi cu in A. 2 pi cu inches B. 6 pi cu inches C. 9 pi

asked by Mary - Help plz
53. ## American Government

The nominating process? A.chooses new government officeholders. B.selects political-party leaders. C.narrows the field of possible candidates D.all the above

54. ## Chemistry

NH4HS(s) reverse reaction arrow NH3(g) + H2S(g) Using Le Chatelier's principle, explain how increasing the temperature would affect the equilibrium.

55. ## math

a 26 foot tree cast a shadow of 14 feet, a nearby tower cast a shadow of 21 feet, how tall is the tower?

56. ## Chemistry

Complete each of the following nuclear equations: a. 239/92U - ? + o/-1e b. 11/5B - 7/3Li + ? thank you!

57. ## Managerial Economics

Assume the only choice variable is total benefit function is B(x) = 170x-x², and cost function is C(x) = 100-10x + 2x². a. What are the marginal benefit and marginal cost functions? b. Set up the net benefit function and then determine the level x that

58. ## U.S. History

Life for African Americans in the South changed after the Civil War because many Africans Americans...?

59. ## teacher aide

In a regular school, the mainstreaming/inclusion technique is a]used only with visually impaired students. b]often impossible with behaviour disordered students c]frequently a positive experience for regular students. d]impractical for learning challenged

60. ## Chemistry

The reaction O2 ⇄ 2 O has a K=1.2x10-10. If a 1.7 L container holds 3.8 moles of O atoms (and nothing else), what will the concentration of O be when equilibrium is reached? So far, I have 1.2x10^-10 = 2.2^2 / 0 but I don't know how to do the rest. When

61. ## ecology

after spraying crops with ddt for several years, farmers found that populations of insect pests rebounded. one reason was that the insects had developed resistance to the insecticide. suggest populations, pyramids, predators and competitors

62. ## physics

Calculate the maximum acc. of a car that is heading up a 4 degree slope. Assume that only half the weight of the car is supported by the two drive wheels and the static coefficient friction is involved- the tires can not slip during the acceleration a) on

63. ## Pre algebra

At the wintergrove amusement park you can purchase a season discount pass for 75\$ that will allow a 10\$ admission to the park all season. If you do not purchase a season discount pass, then the park admission is 35\$. Determine the number of times you must

64. ## physics

A golfer hits a ball from the origin with an initial speed of 35 m/s at an angle of 44 degrees above the horizontal axis. The ball is moving down when it lands on a green that is 3.00 m above the level where it was struck. Neglect air resistance. 1. How

65. ## Physics

A golfer hits a ball from the origin with an initial speed of 35 m/s at an angle of 44 degrees above the horizontal axis. The ball is moving down when it lands on a green that is 3.00 m above the level where it was struck. Neglect air resistance. 1. How

66. ## com 155

Are these well written sentences? 1. When I am writing, my words need to construct a clear picture for my readers. 2. I will avoid using slang in my writing. 3. Using irrelavant words, is one error I need to change in my writing. 4. I need to use a

67. ## Math

which mountains peaks can be seen from Oahu. Island Distance(Mi) Mountain Height(ft) Molokai - 40 - Kamakou - 4,961 A) Radius of earth= 3960 mi. Determine angle formed at the center of the earth. B) Determine length of the hypotenuse. Could someone go

68. ## Chemistry

Mercury, with a freezing point of -38.8°C, is the only metal that is liquid at room temperature. How much heat energy (in joules) must be released by mercury if 1.30 mL of the metal is cooled from room temperature (18.0°C) to -38.8°C and then frozen to

69. ## Economics

4 (ii) You manage Dirt Diggers, an excavating firm that excavates roadside ditches for laying drainpipes. Its output follows the production function: Q = 10L -.1L2 where L denotes labor hours and Q the length of the ditch in meters. You can hire labor at

70. ## US HISTORY

2.At the Yalta Conference, Stalin agreed to enter the war against Japan, but he refused to promise free election in Eastern Europe after the war. true or false

71. ## World History

What was the most important factor in the British conquest of India during the eighteenth century? A. willingness of the British government to pay for an invasion. B. political disunity in India. C. superiority of British arms. D. addiction of millions of

72. ## Algebra

Write the equation of the line containing the given point and parallel to the given line. The equation of the line is y= ?... 1. Express your answer in the form y=mx+b. (7,8); x+7y=6 2. Express your answer in the form y=mx+b. (-4,8); 8x=7y+9 3. Express

73. ## math

This is a question on a study guide for a test tomorrow. How do you do it? Please help According to the Federal Highway Administration, teenage males drive an average of 10,718 miles each year. Assume the mileage totals are normally distributed with a

74. ## Geometry - plz help

The radius of a right circular cone is 6 inches and the height is 8 inches find the slant height of the cone.

75. ## math

A study has shown that 20.05% of all college textbooks have a price of \$80 or higher. It is known that the standard deviation of the price is \$10. What is the mean price of the college textbooks? Assume the price is normally distributed.

76. ## Algebra

If f(a)=K, then which of the following must be true? f(K)=a f inverse(k)=a f inverse(a)=K

77. ## GEOMETRY

PLEASE HELP ME, I HAVE AN EXAM TOMORROW AND THIS THE ONLY QUESTION I HAVE. THE AREA OF A REGULAR HEXAGON IS 35 IN SQUARED. FIND THE LENGTH OF A SIDE. ROUND YOUR ANSWER TO THE NEAREST TENTH. I KNOW THE ANSWER IS 3.7 BUT I DON'T KNOW HOW TO GET IT!!

78. ## Pre Calc

Find the work done by a force F of 30 pounds acting in the direction (2,3) in moving an object 3 feet from (0,0) to the point in the first quadrant along the line y = (1/2)x.

79. ## Geometry-Help PLZ

Each of 6 cubes has a volume of 64 cubic units. If the figure is reduced in size such that the volume of each new cube is 1/8 the volume of the original, what is the surface area of the 6 cubes after the decrease? I came up with 96 sq units Is this

80. ## chem

Balance the following redox equation by the oxidation number methode Ag + HNO3 = AgNO3 + NO + H2O

81. ## excel graphing

In cell D21, type the formula to calculate the % change from January to February. That formula is: =(J18-E18)/ABS(E18). Format the result in the Percentage style and decrease the decimal places if necessary to round the result to the nearest whole percent

82. ## Economics

2. (i) The production function for a firm is given by Q = LK where Q denotes output; Land K labor and capital inputs. Wage rate and rental rate are given by w and r respectively. (a) Show whether or not the above production function exhibits diminishing

83. ## Chemistry

In a unit cell(cubic)atoms A,B & C are located at corners, face-centres and edge centres respectively. If atoms touching one of the rectangular plane of symmetry and one of the tetrad axis are removed then formula of the compound will be? 1)ABC2 2)AC2

84. ## math

The University Entrance scores are normally distributed with a mean of 250 and a standard deviation of 30. What is the probability that a randomly selected student scored lower than 250?

85. ## Algebra

Justin had nickels and dimes in his pocket. when he counted out his change he had \$1.30. If he had 17 coins altogether, how many dimes did he have?

86. ## geometry- need help

Claim: the lateral (side ) surface of any area of any cylinder can is larger than the circlar surface area of its bottom. Which of the following is an example showing that the claim is false? a. a can with the diameter of 5 inches and height of 10 inches

87. ## Pre algebra

Simplify 10w+6+3w

88. ## geometry

If a rectangular solid has a volume of 27 and at least one edge the length of 3,which of the following Must be true? My thoughts lead me to think D is the answer,but I,m not sure?? a.The solid is a cube b.Exactly 4 edges of the solid have a length of 3

89. ## geometry

I found the volume of six cubes to total 336 cubic inches. How do I change the volume to surface area? I need to find the Find the total Surface Area

90. ## Chemistry

Calculate how much heat 32.0 g of water absorbs when it is heated from 26.0°C to 73.5°C.

91. ## finance

Refer to Figure 7-1 of Personal Finance. Why is it important to go through these steps when you are planning on making a large purchase? Provide at least one example to support your response.

92. ## physica

a stone is thrown vertically upward with an initial velocity v0. the distance travelled by it in time 1.5v0/g?

93. ## Algebra

Write the equation of the line containing the given point and parallel to the given line. The equation of the line is y= Express your answer in the form y=mx+b. (-8,9); 2x=9y+4

94. ## psychological statistics

A random selection of files from a student counseling center revealed the following reasons why college students seek services: Mental health issues 25 Learning/school issues 15 Relationship issues 5 Other 5 What does it mean to say the files were randomly

95. ## English

I saw your corrections and I thank you for your help. Shall I write this way: 1) The interior monologue has the following features: first, it is immediate since it lacks the conventional syntax and it is free from introductory expressions. Second, it is

96. ## FRENCH

We just started learning about Reflexive Verbs. And We learned how they are supposed to be in the Past tense, but our focus right now is only on the Present tense. And for the present tense I am wondering whether I need agreement or not? Cause I believe

97. ## Physics

In an emergency stop to avoid an accident, a shoulder-strap seatbelt holds a 58 passenger in place. If the car was initially traveling at 94 and came to a stop in 5.2 along a straight, level road, what was the magnitude of the average force applied to the

98. ## physics

an electric field of 15000 N/C is directed along the positive x-axis, what is the electric force on an electron in this field?

99. ## Chemistry

what are the concentrations of hydrogen ions and hydroxide ions in a solution that has a oh of 5? *please include work done so I can understand*

100. ## SCIENCE(PHYSICS)

A train travels 40 km/hr for 0.2 hr, 50km/hr for next 0.2hr and 60km/hr for next 0.4 hr.calculate the average speed of train. My Solution:-1st hr. distance=40 multiplied by 0.2=8km 2nd hr.= 50 multiplied by 0.2=10km 3rd hr. =60 multiplied by 0.4=24 km

101. ## Science

In gunea pigs , short har (L) is dominant to long hair (l) and heterozygous conditions of yellow coat (cy) and white coat (Cw) give cream coat. A short-haired, cream guinea pig is bred to a long-haired, white guinea pig, and a long haired , cream baby

102. ## math

The sales (in millions of dollars) of a laser disc recording of a hit movie t years from the date of release is given by S(t)=[{4t+1}/{t^3+1}] How fast is the sales changing one year the laser discs are released?

103. ## Ap human geo

Umm this isn't really a question, it's actually a thank you to Ms. Sue for answering my question. Although it was not direct and you made me think, ugh, I figured it out!!!! I did not check until today the 25 of May bcause no other website has given me an

104. ## algebra

Let R = {0,1,2,3}be the range of h(x)= x-7. The domain of h is?

105. ## Math

A box company produces two sizes of pizza boxes. The smaller box has a surface area of 260 square inches. The larger box has a length, width, and height that are twice those of the smaller box. What is the surface area of the larger box? Choices are: A.

asked by Mary - Help plz
106. ## Chemistry

Is this answer correct? Calculate the molar concentration of sodium hydroxide solution if 36.00mL of this solution were required to neutralize 25.00 mL of a 0.2000 M solution of hydrochloric acid. .0288M??????

107. ## Economics

3. (i) Sleak Teak builds yard furniture using hardwoods and (in a smaller shop) handcrafted knick-knacks from the same sort of wood. The hardwood usage in the two lines of product are Yard Furniture: Y = 2 Ty - .001Ty2 Knick-knacks: Z = 20Tz - .01 Tz 2

108. ## Us History

Task: Identify two events (Monroe Doctrine & Open Door Policy) in U.S History that demonstrate how the U.S has promoted the national interest by taking foreign policy actions and for each event : .Discuss the historical circumstances that led the United

109. ## us history

True or False! As soon as the United States entered the war in 1941, the tide turned in favor of the allies?

110. ## algebra

a bag contains 3 green marbles, 2 yellow marbles, and 5 blue marbles. a marble is picked at random and replaced. a second marble is picked at random. what is the probability that the first marble is yellow and the second is not yellow.

111. ## Chemistry

In AB...AB...AB type arrangement if all the atoms present in body are removed,then packing fraction of the crystal is?

112. ## Chemistry

phosgene an equilibrium reaction is the formation of phosgene an equilibrium reaction? how can you tell

113. ## english 114

I've got to write a good news letter to the president of a college expressing my appreciation of an instructor with dedication to his/her instructors...help

114. ## Algebra 2

Solve: 2-y=sqrt(y+4) I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

115. ## algebra

(4a^3b^2-14a^2b-18ab^2)/(2ab)

116. ## Chemistry

In the test for chloride ion why is it necessary to acidify with hno3

117. ## teacher aids

In regular school,the mainstreaming/inclusion technique is?

118. ## Chemistry

When 0.5963g of a sample containing NaNO2 and some inert material is allowed to react with excess HSO3NH2, the volume of N2 gas produced is measured. The volume of N2 gas corrected to 298.15K and 100kPa is calculated to be 0.146L. Find the mass percent of

119. ## Math

Use the limit process to find the area of the region between f (x)=10x+8 and the x-axis on the interval [0,3]

120. ## For -Ms Sue

Claim: the lateral (side ) surface of any area of any cylinder can is larger than the circlar surface area of its bottom. Which of the following is an example showing that the claim is false? a. a can with the diameter of 5 inches and height of 10 inches

121. ## Communication

What are innovative uses of communication technology that changed the world

It says in my competency goal 1 to establish and maintain a safe,healy learning environment. This is what i put. To provide a safe enviroment for infants you must make sure there are no small toys that the kids can choke on. You also need to make sure that

123. ## Math

156 x 29/39 x 1/16

124. ## Physics

Find the electric field at P in the figure shown below. (Take r = 1.5 m and θ = 41°. Measure the angle counterclockwise from the positive x-axis.)

125. ## Physics

The electric field between the two parallel plates of an oscilloscope is 1.2 X 10^5 V/m. If an electron of energy 2 keV enters at right angles to the field, what will be its deflection if the plates are 1.5 cm long?

126. ## Algebra 2

Simplify: sqrt6(sqrt2/2+sqrt3)-sqrt8 I need all of the steps. I need this ASAP because this is due tomorrow. Thanks

127. ## Algebra 2

If logb^z=1/3logb^x+logb^y, write z in terms of x and y. I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

128. ## algebra

Simplify the expression: 3x^2 − 3y + 8x − 5x^2 + 12y

129. ## Spanish

How do you say she was looking at the tv in Spanish. I know this is in the imperfect progressive but ver ( to look) is irregular in the imperfect . Does that matter? Would it be esta viendo a la tele?

130. ## Life orietation

Describe the life style disease/behaviour and explain 5 (more)factors that contribute to the disease.topic that refers to:lack of physical fitness and proper nutrition in the adolescent

131. ## Chemistry

Which shows 15/c9d3 in simplified radical form with the smallest possible index?

132. ## Computers

What is good and bad e-mail etiquette

133. ## music

public enemy's abrasive rap recording fight the power has a basic pulse of

134. ## English

Could you please check if everything is ok? It's really urgent. 1)The old woman is wearing an elegant black business suit with a white blouse and a white-and-blue striped scarf. 2)The boy in the picture is wearing a black leather jacket with a white

135. ## biology

What are different ways antibodies can react with antigens, that aids in preventing a host from being infected.

ã2x+4=4

137. ## Math

Kayla has a 41% grade average. Then sha takes an exam that is for 20% of her grade and gets an 100%. What is her grade now?

138. ## Chemistry

Really hard Chemistry question that I need help with. Any assistance would be really helpful.? When 0.5963g of a sample containing NaNO2 and some inert material is allowed to react with excess HSO3NH2, the volume of N2 gas produced is measured. The volume

139. ## Chemistry

0.60 mol of steam condenses at 100°C

140. ## Algebra 2

Simplify: (2^(1+sqrt2)/2^(1-sqrt2))^sqrt2 I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

141. ## algebra

(4a^3b^2-14a^2b-18ab^2)/(2ab)

142. ## algebra

Please Solve! ln= 1/e3 (e to the third power)

143. ## algebra

Find the value of f(0) if f(x) = x2 - 3x + 2 / x + 1

144. ## Biology

What is in urine after in has been filtered thrigh the kidneys?

145. ## risk management

You are the risk manager of an energy producing company. Your firm explores for and extracts crude oil. Your firm regularly produces approximately 50,000 barrels of oil monthly. You watch the energy markets closely and determine in early May 2011 that the

146. ## algebra

Which of the following functions has an inverse that is not a function? y=x y=2x+1 y=x to the second power

147. ## algebra

simplify and write using only positive exponents. thanks. (2x^3y^4)^-2 divided by (8xy^6)^-3

148. ## algebra

Hector enlarges a photo 4 by 6 so that measures 12 by 18. The area of tge englared photo is how many times greater than the area of the original photo?

149. ## Physics

When a horizontal force of 350 is applied to a 86.0 box, the box slides on a level floor, opposed by a force of kinetic friction of 130 .What is the magnitude of the acceleration of the box?

150. ## geology

When astronauts brought back rock samples from the Moon, the minerals present were mostly the same as those found on Earth. Can you think of reasons why this might be so? Would you expect minerals on Mars or Venus to be the same, or at least very similar,

151. ## U.S. History

True or False? General Sherman's 60 miles path of destruction was from Atlanta, Georgia to Savannah, Georgia?

152. ## Chemistry

What are the steps in solving this problem? There was 455 mL of water added to 60 mL of a 2M ammonia solution. What is the new molarity?

153. ## Pre algebra

The width of a triangle is x-3 and the length is 2x-1. Write and solve an equation to find the perimeter and area of the rectangle if the measures of its length and width are in a 1:3 proportion

154. ## algebra

Write the equation of the line containing the given point and parallel to the given line. The equation of the line is y=... Express your answer in the form y=mx+b (2,-6); 8x+7y=5

155. ## chemistry

suppose that a scientist needs to make 100 mL of a 1.00 M solution. What mass of solid KC needs to be used

156. ## Algebra 2

Simplify: (2sqrt6-sqrt3)^2 I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

157. ## Algebra 2

Solve x^4-4x^3+4x^2-9=0 given that 1+i sqrt2 is a root. I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

158. ## Geometry-help

If a rectangular solid has a volume of 27 and at least one edge the length of 3,which of the following Must be true? I,m not sure??? a.The solid is a cube b.Exactly 4 edges of the solid have a length of 3 c.Exactly 6 edges of the solid have a length of 3

159. ## STATS

a woman standing on a bridge overlooking a major insterstate wants to know how likely it is that the next 20 out of 50 cars that pass under the bridge are red cars, if she has observed in the past that the probability than any given car on that interstate

160. ## English

Could you please check these sentences,please? It's really urgent. I made some changes and I would like to know if they are correct. 1) The interior monologue has the following features. First, it is immediate since it lacks the conventional syntax and it

161. ## Geometry

3. A box company produces two sizes of pizza boxes. The smaller box has a surface area of 260 square inches. The larger box has a length, width, and height that are twice those of the smaller box. What is the surface area of the larger box? A. 520 square

are there similars between the world court and the us courts

163. ## us history

True or False! Before the end of the war, the supreme court declared the internment of Japanese Americans unconstitutional.

164. ## Math

Given the plane 2x-3y+7z=4, find the equation for the line perpendicular to the plane that intersects the plane at the point (6,5,1).

166. ## grammar

Write several sentences describing a recent interaction with a friend or family member about personal finance or credit cards. This interaction may be imagined or real. Use at least five different pronouns, adverbs, and adjectives in your sentences.

167. ## Geometry

A right cylinder has a radius of 2 feet and a height of 5 feet. Find the surface area of the cylinder. What formula should I be using ? My answer should be 28pi ft^2 I didn't get this using 2pi.h + 2pir^2

168. ## english

How does the valley of ashes give a vision of the American Dream? Is it like that it showed prosperity?

169. ## English

syllables-what would be the onset for throw and roast? throw a. thr b. ro c. ow d. th e. row roast a. roa b. oa c. st d. oast e. r

170. ## U.S. History

True or False? "The rebels are our country men again." Is a quote that is referring to the Emancipation Proclamation.

171. ## maths..

find the H C F of three Numbers 198 126 and 240 by using fundamental theorem of arithmetic

172. ## Bio

im stuck on these questions for my study guide Please help! i don't want links. thanks 1. Which of the follwoing would be an appropriate measure of the phenotypic variation of a trait in a population? a) the mean of the trait in the population b) the

173. ## english

For Grapes of Wrath and the American Dream, how did the setting affect the characters vision of the dream? Is it sort of brutal because there was starvation, poverty, and death?

174. ## life orientation

provide recommendation on how to address the topic

175. ## geography

J-shaped curve of mortality depicts the pattern of death typically experienced in:which one is the correct answer. a. Developing countries with high infant mortality b. Developed countries with low infant mortality c. Female pattern of mortality d. Male

176. ## Chemistry

If you are given 46 grams of magnesium how many grams of hyfrogen will be produced?

177. ## english

Do you say colorful or colored shirts?

178. ## Ancient History URGENT Akhenaten

HI Are there any good journal articles on Akhenatens personal aims? What he hoped to achieve. So far all I have is one sentance in a book saying he wanted to do away with the power of the priests of Amun. This is really urgent. My state library is offline

179. ## teacher aide

A diagnosis of mental retardation means that a child a.can't read or write at a funtional level. b.needs serious learning support in mental ability and behaviour. c.has a mental age equal to his or her chronological age. d.can never funtion in normal

180. ## Pre algebra

Kayla has a 41% grade average. On an exam that is worth 20% of her grade she gets a 100%. What is her grade now?

181. ## Roles of Women

How does this relate to life for women colonists in the wilderness of upper Canada? Okay so they both had to take care of their families and had to do all the housework, the women colonists in the wilderness of upper canada helped with the farming too.

182. ## Algebra 2

Are the functions f and g inverse functions if f(x)=5/3x+1 and g(x)=3(x-1)/5? I need all of the steps on how to determine this. I need this ASAP because this assignment is due tomorrow. Thanks

183. ## grammar

is this senetence put right? or how do i fix it? Commas are very important to add to a sentence where they are needed because if you don't properly use them, the reader will be confused.

3n-5=15

185. ## math

The function f(x)=(x-2)^4 has an inflection point at x=2.It is true or false.

186. ## English

I left out three sentences, I hope you can see them. 1) Can you use his/her when writing a dissertion? Exmple: The character stays fixed in a place whereas his/her consciousness moves freely in time. 2) There was no use in (is "in" necessary?) thinking of

what are the procedures of the world court.

188. ## Geometry - Ms Sue

Do I need more information to work this problem???? A box company produces two sizes of pizza boxes. The smaller box has a surface area of 260 square inches. The larger box has a length, width, and height that are twice those of the smaller box. What is

189. ## Chemistry

I was heating a flask containing salicylic acid, acetic anhydride, and H2SO4 to synthesize aspirin. During the heating period, a black sludge appeared at the bottom of the flask. I have no idea what this could be. Other students had experiments that worked

190. ## Algebra

If g(x)=3x-5, then g inverse(x)=

191. ## English

I urgently need to find a site where I can get a video lesson with transcript of the Holocaust. By the way, could you check these sentences I'm not sure of? 1)Robinson’s ship was stuck (wrecked) in the sand and the waves were dashing over it. There was

192. ## math

Have a math question Determine whether or not the network is traversable.

193. ## MATH

Find A n B if A={5, 10, 15, 20} and B={10, 2O, 25, 30} THAT N IS AN UPSIDEDOWN U, DON'T KNOW WHAT THAT MEANS

194. ## physics

a man weighing 500N runs up a staircase half a minute he rise up by 4m. a.what work did he do? b.what was his power?

195. ## chemistry

please help.....i want to know the metals that have atomic mass less than50 with symbol and valency

196. ## us history

True or False? the war against hitler and mussolini was faught on three fonts: the soviet union, north africa and italy, and western europe?

197. ## US HISTORY

1.Good weather, sufficient supplies, and secrecy were the keys to the success of the Allies' cross-channel invasion of France. true or false

198. ## Statistic

Sample autocorrelation at lag1, lag2, and lag 3 denoted by r1, r2, and r3 for large ‘n’ for weekly thermostat sales of one year are 0.4954 , 0.3285, and 0.0959. Assuming that SAC cuts of after lag3 and using level of significance = 0.05, the SAC

199. ## FIN

Jesse, Inc., located in Mesa, Arizona, manufactures high-end baby chairs. The firm’s cost accountant, Lisa, has been assigned by the CEO to determine how many baby chairs Jesse, Inc., needs to make and sell in order to break even. She is given the

200. ## Pre-algebra

Simplify the expression 12q•0•q

201. ## English

The waves got higher and higher. Then the waves broke the boat, and the emperor could not get back to the palace. (What is the meanign of 'Then' in the passage above? 1. At that time 2. After that 3. In that case Or another meaning?)

202. ## Pre algebra

Simplify (3c•7)•2

203. ## life orientation

provide recommendation on how to address the topic

204. ## Chemistry

In Zinc blend structure (r[zn2+]+r[s2-]) is equal to? (if edge lenght is a)

205. ## math

Find a parametric description for the ellipse having the focus F=(0,-4), corresponding directrix y=3, and eccentricity e=3/4.

206. ## intergrated math

evaluate the expression [(-4(-8].[-7)(5)]

207. ## Geometry

A wooden cylinder with a diameter of 10 centimeters and a height of 20 centimeters rests on its circular base. It is cut in half horizontally. What is the difference between the combined surface areas of the two newly created cylinders and the total

208. ## Algebra 2

Simplify: log6^(36/6^-10) I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

209. ## Chemistry

When 0.5963g of a sample containing NaNO2 and some inert material is allowed to react with excess HSO3NH2, the volume of N2 gas produced is measured. The volume of N2 gas corrected to 298.15K and 100kPa is calculated to be 0.146L. Find the mass percent of

210. ## history

I am doing a report on the 1938 "war of the worlds"radio brodcast/scare. i need just one reliable website (no dot com's, dot net's or wikipedia)that can give me some more information on it. please give me a link

211. ## algebra

Solve the equation: |2x − 5| £ 9

212. ## math

The price p per kilogram when x kilograms of a certain commodity are demanded given by p=[{300}/{x+3}]+105 for 0 < x < 100 Find the revenue function.

213. ## science

What is a simple definition for the 2nd law of Thermodynamics?

214. ## us history

True Or False! Despite the stepped-up industrial production of the war years, the United States could not shake off the effects of the Great Depression.

215. ## trig

if x and y are positive acute angles, tan x=1/3and tan y =1/4, find the value of sin(x-y)

216. ## Math

Find a parametric description for the ellipse having the focus F=(0,-4), corresponding directrix y=3, and eccentricity e=3/4.

217. ## Algebra

I need help multiplying rational expressions.. x-2/x+3 x 4x+12/6 first I took the four out from 4x +12/6 so I got x-2/x+3 x 4(x+3)/6 but now I'm not sure what to do?

218. ## Grammar

***Is this done correctly? Write some examples of sentences that change the meaning of a word by using different modifiers? Eventually I realized what they were talking about. My grandmother is a very sweet woman. The man was extremely tall. It was

219. ## US HISTORY

Despite their losses in the war, France and Britain were as firmly in control of their colonies in 1945 as they had been before 1939. true or false

220. ## Algebra

1. Express your answer in the form y=mx+b. (7,8); x+7y=6 2. Express your answer in the form y=mx+b. (-4,8); 8x=7y+9 3. Express your answer in the form y=mx+b. (8,9); 5x+y=9 4. Express your answer in the form y=mx+b. (2,-6); 8x+7y=5 I don't get ANY of this

221. ## us history

How do you think American isolationism and appeasement by Britain and France influenced the policies of Germany , Italy, and Japan?

222. ## U.S. History

True or False? If a soldier had a wounded arm, it would most likely be amputated during the Civil War.

223. ## us history

how would the wartime experience of african americans , other minorities, and women make them less willing to accept the status they held prior to the war?

224. ## Chemistry

What is the volume of 0.255 moles of gas held at 1.75atm and 10°C?

225. ## social studies

Can someone give me some information and possible sources regarding some short and long term affects of nazi control over literature and art etc, as well as how the ideas and beliefs of members of German society changed as a result of Germany being

226. ## Algebra 2

Simplify: sqrt(72x^3)-5x sqrt(2x) I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

227. ## Algebra 2

Simplify: 6/(3+2sqrt3) I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

228. ## algebra

(4a^3b^2-14a^2b-18ab^2)/(2ab)

229. ## Ancient History

Hi Okay, hypothesis time XD. That Akhenaten challenged the religous system of New Kingdom Egypt and the role of a typical New Kingdom pharoah. Furthermore he did not create any lasting reforms, was detrimental to Egypts development and did not act as a

230. ## math

2/27(x-3)√((x^2-6x+23)/y)rearrange the equation to make y the subject

231. ## Algebra

x = 2 or x = -4 What is the Quadratic equation?

232. ## math

Solve the radical equation: √300 or ã300

233. ## math

what is 4 divided by 2 2/3?

I need help figuring this question out please :) log2=log(x+5)-1 I have been studying for my test and this is a question i got stuck on.

235. ## Algebra 2

Simplify: 2/^6sqrt8 I need all of the steps. Thanks

236. ## Sociology - Essay

I'm doing an essay about the 4 purposes of prison and how they are being met in the movie "The Shawshank Redemption". I have to do 4 of the 6 paragraphs with 2 points, 2 proofs, and 2 analysis. The paragraphs that I'm doing now are about protection and

237. ## Algebra 2

Solve and write in interval notation: -3 ¡Ü (x − 4) / 2 < 4 Solve and write in interval notation: -7 < 4x − 3 ¡Ü 7 Solve and write in interval notation: -4x − 2 < 6 AND 3x ¡Ý -6

238. ## statistics

with a mean of 60 and standard deviation of 7, what is the z score at 1.64?

239. ## Pre algebra

simplify (0+9k)+k

240. ## travel agency

what is the comaprative analysis with competitors of the travel agency? thanks!!!

241. ## b-tech

a 2d regular box has a perimeter of 200cm determine the maximum possible area

242. ## Math

If the radius of a circle is 3960 the angle is 1.59 the arc length is 110 how would I find the hypotenuse? I think it is 3960/cos1.59 but I know that you just don't automatically know that wouldn't it start out as cos1.59 = A/H (adjacent/ Hypotenuse) Could

243. ## SCIENCE(chemistry)

SIR BUT THIS IS ONLY PROVIDED IN THE QUESTION &I HAVE TO COMPLETE IT. (DRAW A TEMPERATURE TIME PLOT FOR ICE -STEAM TRANSFORMATION.)

244. ## chemistry

now lets say that this scientist wants to make 50 mL of a 0.250 M KC solution. How much of the 1.00 M "stock" solution whould he use

245. ## math

order from largest to smallest 8, 5, -8,-3 -5, -6,1,3

246. ## Algebra 2

Solve e^(2x-1)=3 I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

247. ## Maths

How many 1's go into 4??

248. ## math

Explain why the function f(x)={x^2-9}/{x-3} is discontinuous at x=3.

249. ## math

The derivative of f(x)=square root of {x} with respect to x is given by f'(x)={1}/square root of {x}.it is true or false?

250. ## math

The function f(x)=x(x-1)(x-2) has stationary points at x=0, x=1 and x=2.true or false.

3/17x=12

252. ## COMPUTER LITTERACY

HOW IS A CELL NUMBERED

253. ## math

a rectangle whose sides measure 8cm 3cm 8cm and 3cm

254. ## MATH ~~

HELP Please!! Sample autocorrelations at lag1, lag2, and lag3 denoted by r1, r2, and r3 of weekly sales of shampoo bottles was found 0.4551, 0.3376, and 0.2514. Using the criteria of your text, the maximum number (‘n’) of weeks for shampoo bottles

255. ## Pre-algebra

Simplify the expression (8•5)•1

9n+5-9-9n