Questions Asked onNovember 1, 2009

1. Calculus

An airplane flies at an altitude of 5 miles toward a point directly over an observer. The speed of the plane is 600 miles per hour. Find the rate at which the angle of elevation tetra is changing when the angle is 30 degrees

2. college

What will the following pseudocode program display? Module main( ) Declare Integer x = 1 Declare Real y = 3.4 Display x, " ", y Call changeUs(x, y) Display x, " ", y End Module Module changeUs(Integer a, Real b) { Set a = 0 Set b = 0 Display a, " ", b }

3. MATH

A pollster wants to minimize the effect the order of the questions has on a person's response to a survey. How many different surveys are required to cover all possible arrangements if there are 5 questions on the survey?

4. chem

a 22.5g sample of (NH4)2CO3 (ammonium carbonate) contains _____ moles of ammonium ions?

5. Calculus

a spherical balloon is inflated with gas at the rate of 500 cubic centimeters per minute. how fast is the radius of the balloon increasing at the instant the radius is 30 centimeters?

6. physics

a girl pulls a 12.0 kg wagon along by exerting a force of 15.0 N on the wagons handle, which makes an angle of 20.0 degrees with the horizontal. Friction provides a force of 11.0 N in the opposite direction. How long does it take for the wagon, which is

7. physicss

A 0.190 kg piece of copper is heated and fashioned into a bracelet. The amount of energy transferred as heat to the copper is 6.62 x 10^4 J. If the specific heat of copper is 387 J/kg x °C, what is the change in temp of the copper?

8. physics

A Ferris wheel with a radius of 9.61 m rotates at a constant rate, completing one revolution every 34.1 s. Calculate the magnitude of a passenger's acceleraton when at the top of the wheel.

9. Chemistry

Chlorine gas may be easily prepared in the lab according to the reaction: 2KMnO4(s)+ 16HCl(aq)-> 2 MnCl2(aq)+5Cl2(g)+ 8H2O(l)+ 2KCl(aq) What mass of HCl is needed to prepare 1 mole of Cl2 gas?

10. physics

The distance from an observer on the plain to the top of a nearby mountain is 5.3km, and the angle between this line and the horizontal is 8.4 degrees. How tall is the mountain?

11. Calculus

a bomb is dropped from an airplane at an altitude of 14,400 feet. how long will it take to reach the ground? (because of the motion of the plane, the fall will not be vertical, but the time will be the same as that for a vertical fall.) the plane is moving

12. physics

A horizontal 810-N merry-go-round of radius 1.70 m is started from rest by a constant horizontal force of 55 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-go-round after 2.0 s. (Assume it is a solid cylinder.)

13. Chemistry

there are ___ molecules of methane (CH4) in 0.123 moles of methane? a. 16 b. 0.773 c. 2.46 x 10 -2 d. 7.40 x 10 22 e. 6.02 x 10 23

14. math- Algebra 2

An auditorium has 49 rows of seats. The first row contains 40 seats. As you move to the rear of the auditorium, each row has 3 more seats than the previous row. * I am pretty sure it involves both arithmetic series and explicit formulas but im not sure

15. space science

how does the size of the moon's core support the impact theory of the moon's formation? please help and thank you

16. Chemistry

the formaula for the compound formed between aluminum ions and phosphate ions is??? a. Al3(PO4)3 b. AlPO4 c. Al(PO4)3 d. Al2(PO4)3 e. AlP

17. math

Angles x and y are located in the first quadrant such that sinx=3/5 and cosy=5/13. a) Determine an exact value for cosx b) Determine an exact value for siny

18. Math

To convert from kilometers (km) to meters (m), multiply by 1000. How many meters are there in 6.2 km?

19. Chemistry

Some drain cleaners contain a mixture of sodium hydroxide and aluminum which reacts with water as follows: 2Al(s)+2 NaOH(aq)+6H2O(l)->2Na[Al(OH)4](aq)+3H2(g) What mass of hydrogen gas can be produced when 5g Al reacts with sufficient NaOH and H2O)

20. physics

A new event has been proposed for the Winter Olympics. An athlete will sprint 150.0 m, starting from rest, then leap onto a 20.8 kg bobsled. The person and bobsled will then slide down a 46.0 m long ice-recovered ramp, sloped at á=21.0°, and into a

Angles x and y are located in the first quadrant such that sinx=3/5 and cosy=5/13. a) Determine an exact value for cosx. b) Determine an exact value for siny.

22. Chemistry

a 22.5g sample of (NH4)2CO3 (ammonium carbonate) contains_____ moles of ammonium ions. A. o.468 b. 0.288 C. 0.234 d. 2.14 e. 3.47

23. Math

The following data set gives the difference between the winning and? losing scores in 50 randomly observed high school basketball games: 2, 12, 1, 2, 12, 5, 14, 2, 45, 9, 1, 8, 18, 28, 9, 4, 30, 16, 4, 12, 8, 13, 20, 9, 17, 13, 49, 17, 13, 4, 14, 2, 12,

24. Physics

Astronauts who spend long periods in outer space could be adversely affected by weightlessness. One way to simulate gravity is to shape the spaceship like a cylindrical shell that rotates, with the astronauts walking on the inside surface. Explain how this

25. Chemistry

In the compound PtCl2(NH3)2, what is the percentage of the mass due to nitrogen?

26. Chemistry

How many molecules of carbon dioxide (CO2) are there in 88g of carbon dioxide? a. 1 b. 2 c. 88 d. 1.2 x 10 24 e. not enough info

27. physics

When it is 10:00, the hour hand on an analog clock is 300 degrees ahead of the minute hand. How many minutes elapse (to three significant digits) before the minute hand next points in the same direction as the hour hand?

28. Geometry

I need help on a geometry proof!!!! If Line AB is parallel to Line DC and Line BC is parallel to line AD, prove that angle B is congruent to angle D. The picture is basically a square or parallelogram with line DC on the Top and Line AB on the bottom, and

29. math

question: find the points at which the graph of x^2 -4x + y62 -6y =12 has a vertical or horizontal tangent line. I found the deriviative to be (x-2)/(3-y) Then, the x value for a horizontal would be x=2 and the y value for a vertical would be y=3. But how

30. Statistics

Among employed women, 25% have never been married. Select 10 employed women at random. What is the mean number of women in such a sample who have never been married? What is the standard deviation? I think the mean would be 2.5, but I'm not sure about the

31. PHYS

the water in a swimming pool transfers 1.09 x 10^10 J of energy as heat to the cool night air. If the temp of the water, which has a specific heat capacity of 4186 J/kg x °C, decreases by 5.0°C, what is the mass of the water in the pool?

32. Math

The price for 2 tickets with online service charges, large popcorn and 2 medium soft drinks at a sample of 6 theater chains: \$36.15, \$31.00, \$35.05, \$40.25, \$33.75, \$43.00 a) Construct a 95% confidence interval estimate for the population mean the price

I need help writting exactly 25 words to describe the relationship between CFCs and the Earth's protective ozone layer.

34. Chemistry

a sample of C3H8O that contains 200 molecules contain how many atoms?

35. Chemistry

What value of a measurement must be known if the accuracy of an experimental measurement is to be determined?

36. economics

I have an article for economics and it discusses how the housing starts fell short of economists expectations.It mentions that despite not reaching there goal, they did have a 0.5% increase in first time home owners. In your opinion do you think it sounds

37. Physics

a projectile is launched with an initial velocity of 60 m/s at an angle of 30 degrees above the horizontal. how far does it travel?

38. Chemistry

Sulfur and fluorine react in a combination reaction to produce sulfur hexafluoride: S (s) + 3F2 (g) SF6 (g) What is the minimun number of moles of fluorine gas needed to completely react with 16 g sulfur? a. 1 b. 1.5 c. 2 d. 3 e. 6

39. physics

A metal can containing condensed mushroom soup has a mass of 269 g, a height of 14.7 cm, and a diameter of 6.79 cm. It is placed at rest on its side at the top of a 3.34 m long incline that is at an angle of 22.4 degrees to the horizontal and is then

40. Economics

Please check and correct my answers. Thank you. Jack Benny can get blood from a stone. If he has x stones, the number of pints of blood he can extract from them is f(x) = 2x^(1/3). Stones cost Jack w dollars each. Jack can sell each pint of blood for p

41. physics

A ball of mass 0.35 kg is fired with velocity 157 m/s into the barrel of a spring gun of mass 1.8 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to

42. science

how does the size of the moon's core support the impact theory of the moon's formation? please help and thank you

43. physics

A ball rolls up a ramp which abruptly ends with the ramp dropping straight down. The ball launches off the end of the ramp while still traveling at an upward trajectory, goes through projectile motion, and returns to the same height as the base of the

44. physics

A 11.6 kg weather rocket generates a thrust of 215.0 N. The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring constant is 399.0 N/m, is anchored to the ground. Initially, before the engine is

A new high school has just been completed. There are 1,000 lockers in the long hall of the school and they have been numbered from 1 to 1,000. During lunch, the 1,000 students decide to try an experiment. - The first student, student 1, runs down the row

46. English

"Poetry is the spontaneous overflow of powerful feelings; it takes its origin from emotion recollected in tranquility: the emotion is contemplated till, by a species of re-action, the tranquility disappears, and an emotion, kindred to that which was before

I have to write a paper on a detail dealing with a problem in a medical supply office. 10 years ago Liz Jakowski promote me to office manager. I manage two employees: jack snyder and ruth disselkoen. My office provide office support for members of the

48. English

1. Have you ever chatted with a foreigner at a chatroom? 2. Have you ever written English e-mails? 3. Have you ever taken a taxi to come to school? 4. Have you ever shopped at Home plus? 5. Have you ever sung songs at a singing room? 6. Have you ever

49. CRT 205

Choose two topics from the Opposing Viewpoints Resource Center that interest you and locate a set of materials from the database for each topic. If you choose school violence as one of your topics, for example, you might find a magazine article that argues

50. Math

Doug had scores of 80, 85, 75, and 80 on his first four exams in a course. a. Find the mean, median, and mode for these exam scores. b. Which “average” would Doug want the teacher to use in determining his grade? c. What score would Doug have to get on

51. philosophy

Eastern and Western Philosophers Comparison Paper Write a 700- to-1,050-word persuasive paper discussing how one Eastern philosopher and one Western philosopher make the most compelling cases for his or her ideas. I keep reading and reading but I am lost,

52. Ap Biology

During aerobic respiration, glucose is broken down to form several end products. Which end products contain the carbon atoms from glucose? The hydrogen atoms from glucose? The oxygen atoms from glucose? The energy stored in the glucose molecules?

53. Science

A biologist is studying the epithelial cells in a variety of plants and animals. She counts the chromosomes in the epithelial cells of several organisms and finds the following numbers: Organism A: 32 chromosomes Organism B: 26 chromosomes Organism C: 24

54. social studies

prepare a defence for the proposition that the Divine Right of Kings is necessary to good government. i don't get it. what does this mean? and i don't even understand the Divine Right of Kings, it was written in old english. please help me. and it also

55. physics

What linear speed must a 0.0495-kg hula hoop have if its total kinetic energy is to be 0.113 J? Assume the hoop rolls on the ground without slipping.

56. chemistry

what mass of water is needed to completely react with 2.35g of Ca

57. Chemistry

Dimethylsulfoxide (C2H6SO), also known as DMSO. How many moles of carbon are in 4 moles of DMSO? a 1 b 2 c 4 d 8 e not enough info

58. Chemistry

Which of the following is most likely to LOSE electrons when forming an ion? a. F b. P c. S d. Rh e. Se

What is the relationship between CFCs and the Earth's protective layer?

60. Calculus

For any constant c, define the function f_c(x)= x^3+2x^2+cx. (a) Graph y = f_c(x) for these values of the parameter c: c = -1, 0, 1, 2, 3, 4. What are the similarities and differences among the graphs, and how do the graphs change as the parameter

61. Physics

1.A net force that is linearly increasing in time is applied to an object. What is time dependence of the object's kinetic energy? 2.A tire is rolling along a road, without slipping, with a center of mass velocity of v. A piece of tape is attached to the

62. math

the perimeter of a rectangle is 126 inches. the length exceeds the width

63. Chemistry

I am trying to show that the combined weight of the reactants is equal to the combined weight of the reaction. When I placed CaCl2 into Na2 CO3 I didn't lose any weight. When I added Sulfuric Acid, I could not recork due to safety, therefore I lost Carbon

64. Chemistry

which metal does not require having its charge specified in the names of ionic comppounds it forms? a. Au b. Ca c. Cu d. Cr e. Fe

65. Algebra

What is the best method for Solving equations with variables on both sides? This is the problem: 1(6x-x)=162+12x

66. Cash flow statement

In a statement of cash flows, the cash flows from investing activities section should report a.the issuance of common stock in exchange for a factory building. b.stock dividends received. c.a major repair to machinery charged to accumulated depreciation.

67. physics

a projectile launched horizontally hits the ground in .6 seconds. if it had been launched with a much lower speed in the same direction, it would have hit the ground in

68. social studies

DO SOME RESEARCH ON JAMES 1. WRITE A CHARACTER SKECTH OF JAMES. WHAT DIRECTIONS WOULD YOU GIVE TO AN ACTOR ASKED TO PORTRAY JAME 1 IN A FILM? plz help me. i totally don't get this question. im failing social. the only thing i know is that, james was an

69. Physics

Is it possible for the frictional force to increase the mechanical energy of a system? If so, give 2 examples with brief explanations. If not, why not?

70. 7th grade mathSuppose

Suppose rectangles X and Y are similar. The dimensions of rectangle X are 5 centimeters by 7 centimeters. The area of rectangle Y is 140 square centimeters. What are the dimensions of rectangle Y?

71. PHYsics

the temp of air in a foundry increases when molten metals cool and solidify. Suppose a 45 x 10^6 J of energy is added to the surrounding air by the solidifying metal. The air's temp increases by 55 °C, and the air has a specific heat capacity of 1.0 x

72. Pre CAlc (calendar ?)

how do you answer :a bug lives on the corner of a cube and is allowed to travel only on the edges of the cube. in how many ways can the bug visit each of the other seven corners once and only once returning to its home corner only at the end of the trip?

73. Statistics

According to a 2000 study by the Bureau of Justice Statistics, approximately 2% of the nation's 72 million children had a parent behind bars - nearly 1.5 million minors. Let X be the number of children who had an incarcerated parent. Suppose that 100

74. Computer Sciene-java

Write a loop that will continuously prompt the user for integers to sum, -1 to exit. Sum these values and display the sum to the console. Here is what I have so far, but I feel like I am missing something: public class Sum1 { public static void main

75. Calculus

For any constant c, define the function f_c(x)= x^3+2x^2+cx. (a) Graph y = f_c(x) for these values of the parameter c: c = -1, 0, 1, 2, 3, 4. What are the similarities and differences among the graphs, and how do the graphs change as the parameter

76. algebra

math word problem amy paid \$55.73 for a pair of running shoes durning a 40% off sale what was the regular price?

77. Civics

How can I write a sentence using the word lobbying in it?

78. Math

a bag contains 100 rocks and if 35 rocks removed what fraction of the rocks are left

79. Chemistry

How do I contain Carbon dioxide when I combine sulfuric acid, sodium carbonate and calcium chloride?

80. math

Decide which of the variables described is likely to have a normal or near-normal distribution. 3) a. The amount of change held by a teacher at the end of each day for a year b. The amount of property taxes paid by homeowners in a new "affordable housing"

81. Chemistry

Once it is balanced, in the following chemical reaction NaHCO3(s) Na2O(g) + CO2(g) + H2O(l), what is the coefficient for Na2O (s)? a. 1 b. 2 c. 3 d. 4

82. Chemistry

The ion formed by IODINE has electron configuration that resembles a. Te b. Kr c. Xe d. Br e. we cant know unless told whether it gains or loses electrons

83. American National Government

Could someone please help me find some information? I need to write a paper about my U.S. Representative in my area. My U.S. Representative is Brad Ellsworth. In this paper I need to describe the characteristics of my congressional district, I am not sure

84. algebra

I have 3 questions in 1. State whether the equations 3x^2=5, y=10^3X, and y=2x=23-14x represent a linear, quadratic or exponential function and why? I am confused on this.

85. Writing

I am trying to find out what are parameters of persuasive writing. I tried to goggle it and all I got was links to essays that people wrote. I do not want essays, I want parameters. Please help point me in the write direction.

86. Socials-Ms. Sue

Ms. Sue, thanks to you, I have got to know a lot about Voltaire. Seriously If I have to pick a philosopher that I would agree with, then it would be Voltaire as well. In my book there was very little info about him, so that's why I didn't really get to

87. Chemistry

Can someone please check this for me? C4H8+5O2-->3CO2+4H2O+C Butane is a gas and .01 g of it is burned. Is .00218 g of carbon the result? Thanks

88. Healthy Decision Making (URGENT)

List the possible consequences to self, others and society at large if individuals fail to act responsibly while participating in the following activities. Mountain Climbing Consequences to self: May have injuries such as broken body parts Consequences to

89. Media Law

What are the reasonable limits in which the media should be allowed to cover governmental meetings in the media role of informing the electorate of the activities of government?

90. Math

Write the decimal equivalent, using the bar notation. 13/18 b) Find the decimal equivalent of the mixed number. 6 3/5

91. basic chem conversion

I have 760 mm Hg at 10 km. How do I convert this to atms? I know that 101.3 atm is equal to 760 mmHg but i don't know how the 10 km will affect this.

92. calculus

Find the indefinite integral and check the result by differentiation: (integral) x^2 +2x -3 ---------- dx x^4

93. Math

Bellow are stress units of various life experiences. What would be a good graph to use to display the information? Stress.................... Units Death of spouse............100 Divorce....................73 Marital separation.........65 Jail

94. Biology

A scientist separates plant pigments from leaf, root, and stem samples by paper chromatography. All the leaf chromatographs include yellow green and blue green spots but none of the root and only a few of the stem chromatographs have these green spots.

95. Math

What graph would be the best for this problem: The following are prices (in dollars) 2004 automobiles, as listed in a sale ad in the automobile section of the newspaper: 12,997 14,891 18,666 21,799 17,495 17,266 21,517 14,414 14,257 15,634 15,734 27,825

96. Literature

Yesterday Ms. Sue gave me wikipedia so i can find What is a tragic mulatto? Is there anyway someone can give me that definition because I can't get the website to work on my computer. Thank you.

97. trig

Use a compound angle formula for sine to show that sine2(theta) = 2sine(theta)cos(theta)

98. trig

Angle x is in the second quadrant and angle y is in the first quadrant such that sinx=5/13 and cosy=3/5. a) Determine an exact value for cosx b) Determine an exact value for siny

99. calculus

what is the derivative of y = (1/2)xln(x)

100. physics

1.A tall pole and a short pole (both having the same diameter and mass density) are both standing straight up. Both are allowed to tip and fall, starting from rest, at the same time. Which reaches the ground first? 2.When a non-vertical projectile strikes

101. PreCalc (still confused)

Hello and Happy Halloween! Trying to get this problem and could use some help. Find the dimensions of the rectangle with minimum perimeter if its area is 400 square meters. Find the least perimeter. I know that a rectangle has two sides that are equal and

102. social studies

Why is mexico called a developing country

103. algebra

im supposed to solve by the elimination method 5r-25=33 2r+5s=48

104. algebra

in 1995 the life expectancy of males in a certain country was 68.7 yrs in 2000 it was 71.3 yrs let E repressent the life expectancy in yrs T and let T represent the the number of yrs since 1995. the linear function e (t) that fits the data is e (t)=T+

105. Math

How do I factor 3x2+4x=1 and #x2-2x-8

106. social studies

do you know any websites that have any primary sources dealing with the roman empire, such as religion, war and conflict, culture, etc?

107. Algebra

solve by elimination method; 3r-7s=13, 7r-3s=69

108. social studies

Do you any websites that might have information on a job called a Miller(one who grinds wheat to make flour, etc.)?

109. Ap english

I have to write an essay that compares and contrasts the rhetorical strategies of tone, lexicon, and syntax from two sermons given by the same person. How do i do this??? Helpp please!! (the sermons are called "Beauty of the World" and "Sinners in the

110. algebra

Solve by substitution: y=x-4 x+y=14

111. algebra

Sovle by substitution: 2x-3y=9 4x-6y=-12

112. STATS HELP

Freshman-sophomore retention rate (FSRR) for a college is the proportion of first-year students who return to the college for their sophomore year. Nationwide, the mean FSRR for colleges in the U.S. is 75%. Use the 68-95-99.7 rule to describe graphically

113. algebra

im suppposed to determine if this is parralled perpendicular or neither 2x+3y=2 3x-2y=9

114. Math

If a ray divides an angle into two acute angles, then it bisects the original angle Find the maximum area of a rectangle with the perimeter of 54 cm. Do ray CD and ray CE form line DE?

115. MATH 213

13. Consider the set of northwestern states or provinces {Montana, Washington, Idaho, Oregon, Alaska, British Columbia, Alberta}. If a person chooses one element, show that in three yes or no questions, we can determine the element.

116. algebra

1 - 6 (6-x)=27+2x

117. To Writeacher

"Poetry is the spontaneous overflow of powerful feelings; it takes its origin from emotion recollected in tranquility: the emotion is contemplated till, by a species of re-action, the tranquility disappears, and an emotion, kindred to that which was before

118. Math

Perpendicular to y=3/4x-2 and passes through (-12,7)

119. Math - Slopes

A carpenter is building a stairway. The depth of each stair is 10 inches. The height of each riser is 8 inches. WHat is the steepness (slope) of the stairway? Please show work.

120. English

I have a Englaih project on "Stop Starvation." I need ssubtopic ideas on the topic. For example, "What is Starvation?"

121. Math

Write an equation in slope-intercept form of the line satisfying the given condition. Perpendiculst to y= 3/4x - 2 and passes through (-12,7)

122. algebra

is (8,9) the solution of 2x+4y=6

123. Math

Describe what the graph of interval [-4,10] looks like can someone help me

124. science

why is high pressure so important in plant oil extraction

5/z+6 + 5/3z

126. Algebra

The function 5x^2+2x-1's domain is all real numbers, according to the answer key. However, I don't know how to factor this to prove it. Could you show me? The function the sq. root of y-10 has a domain of all numbers so that y is greater than or equal to

127. Physics

A ship is being pushed by the sea currents at 25 km/hr 28 degrees west of south. find the velocity of the ship to the west and to the south

128. Math

Darren used pieces of molding 7 1/2 feet long, 2 3/4 feet long, and 7 1/2 feet long to frame a doorway. If he started with 20 feet of molding, how much was left over?

129. Math

Determine the slope of the line that passes through each pair of points. Graph the line with x intercept -3 and y intercept -2. Use a coordinate plane.

130. algebra

heres a bad one i cant get trains A and B are travling in the same direction on a parrallel track train A is travling at 100 mph and train B is travling 104 mph train A passes a station at 5:10 p.m. if train B passes the same station at 5:40 p.m. at what

131. childcare

10. Preventive maintenance means A. purchasing equipment that will require the least amount of maintenance. B. regularly inspecting and repairing or replacing equipment. C. developing rules to prevent children from damaging equipment. D. hiring experienced

132. algebra

im supposed totraqnslate to an algebraic expression. the product of 19% some number the translation is type the percentage use a decimal use q to reprensent some number. help please

133. crt 205

Identify and name any rhetorical devices used by the author. If none exist, explain how you determined this. "President Obama's decision to force American taxpayers to foot the bill for abortions in the District of Columbia will cause the deaths of at

134. algebra

8x-(5x+)=14 the solutions is X= help

135. Biology

Please answere these questions: identify each statement as observation, hypothesis, or prediction and then tell if it is inductive or deductive Male Red-winged Blackbirds display red wing patches to signal superiority to other males A male Red-winged

i need help with unit rates

asked by lily martinez

-5/6x=-7/8

138. Chemistry

Which is the smallest particle among the particles below? a. cesium atom b. cesium ion c. oxygen atom d. oxygen ion e. not enough information

139. Investing

In a statement of cash flows, the cash flows from investing activities section should report a.the issuance of common stock in exchange for a factory building. b.stock dividends received. c.a major repair to machinery charged to accumulated depreciation.

140. math

Find the z-score for the given raw score, mean, and standard deviation. Assume a normal probability distribution. Raw score = 15, ì = 16 , and ó = 2

141. trig

Angle x is in the second quadrant and angle y is in the first quadrant such that sinx=5/13 and cosy=3/5. a) Determine an exact value for cosx b) Determine an exact value for siny

142. algebra

2x+3y=1 4x+6y=2 is there a order pair here or is there no solution

143. math

differentiation form first principles y=1/x^2

144. English H1

Can someone please help explain Lord of the Flies by William Golding to me? I understand the general concept, but certain parts I can't seem to grasp. I'm only as far as Chapter Five. Thank you SO much to anyone who can help!

145. chemistry

One afternoon, a graduate student set up a silica gel column to chromatograph a mixture of two colourless products whose Rf values were quite close. Suddenly, he realized that he had tickets to the Leafs game that night. He turned the stopcock to stop

146. books

i need a famous work of literature unscrambled containing the letters noahadamsfalseteeth

147. algebra

x=-5 find the slope if there is one

148. math- Algebra 2

I have absolutely no idea how to do this please help! Find the sum: it has the sigma sign with 12 at the top, (10k-8)(6k+7) in the middle and k=1 at the bottom

149. Algebra1

Here's the problem. I have to write an equationa and solve. The greater of two consecutive integers is 15 more than twice the smaller. Find the intergers. Thank you guys so much! =)

150. Maths

differentiate from first principles y=1/x^2 i get to this then i get stuck f(x+h)-f(x) = 1/(x+h)^2 - 1/x^2 = x^2 - x^2 -2xh -h^2 above divided by(x^2+2xh+h^2)(x^2) = -2xh -h^2/x^4+2x^3h+h^2x^2 then i know i need to divide by h but i cant seem to get to

151. electrical

when ever a conductor move thought a magnetic field a voltage is in cluded what factors deter mine the amount of voltage that is generated

152. Math

Consider the box-and-whisker graphs shown. They suggest that a U.S. Department of Agriculture study shows that poultry dogs have fewer calories per dogthan either beef dogs or meat dogs. Yet, one dietitian claims that some hot dogs made of poultry have

153. Math

Write an equation in slope-intercept form of the line satisfying the given condition. Perpendiculst to y= 3/4x - 2 and passes through (-12,7)

154. algebra

y-9>-16 the solutions is y> i don't get this?

155. Health

Are there any medications to treat steroid effects? [Exact pill/medicine names, please.]

156. implicit differentiation

what is the derivative of ln(y) = x

157. Sentence Fragments

how should this sentence be. " Richard III supposedly had the young princes murdered. Never found out what really happened to them."

158. Math

Find the decimal equivalent of the mixed number. 6 3/5

159. AP English

Would you consider the sermon "Sinners in the Hands of an Angry God" by Jonathan Edwards to be a homily?

160. 8th grade History/English

I need to name three influential pilots in Life on the Mississippi by Mark Twain. I already have two: Mr. Brown Mr. Bixby I need one more. Anyone know one?? Thanks!

asked by Owen Leigh
161. algebra

im supposed to collect like terms 17p+5q-6p-9q=

162. Math

The circular surface of a table has a diameter of 3 ft. What will cost to have the top refinished if the company charges \$5 per square foot for the refinishing? Use 3.14 for and round your answer to the nearest cent.

163. Pre CAlc (calendar ?)

how do you answer :a bug lives on the corner of a cube and is allowed to travel only on the edges of the cube. in how many ways can the bug visit each of the other seven corners once and only once returning to its home corner only at the end of the trip?

164. philosophy

2#What are the effects of physical abuse on young children? 3#What are the causes of bullying?4#Why some people not want to take drugs?

asked by kelvin andrew
165. Misc

Is it more expensive to live in the country or city? ...for example, here in Georgia? Thanks -MC

166. Math

Would (5x^2)^2 be 25x^4 or 5x^2? Thanks!

167. electrical

List two characters of a universal motor

168. Math

Marc had the following expenses on a business trip: gas: \$53.83; food, \$135; lodging, \$99.85; and parking and tolls, \$8.50. What were his total expenses during the trip?

169. math 115

Determine the maximum and minimum values of the following set of numbers. 3, -36/7, -1, -2/3,5/4,-5,26/9 I think the correct answer is 26/9 and -36/7

170. grammar

This is about subject-verb agreement. How should I re-write this sentence: "Either the interviewer or the committee members usually begins by asking simple questions about your background." "Each of the instructors are attending the conference next

171. To Ms. Sue

Ms. Sue I have added more to my previous post, can you please take a moment to look at it, thanks.

172. child

The major purpose of providing storage for outdoor equipment is to A. teach children to store equipment properly. B. lengthen its life. C. avoid having to insure it. D. fulfill licensing require

173. math 115

Evaluate - |– 618| the brackets indicate an absolute, so the answer is 618, but the negative before the brackets makes it negative correct? The answer is -618 I think, am I correct? thanks

174. CRT 205

Does this statement have any vague or ambiguous? "President Obama's decision to force American taxpayers to foot the bill for abortions in the District of Columbia will cause the deaths of at least 1,000 more unborn children each year." After the House

175. Calculus

can someone please explain h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 5 7 0 4 1 1 4 5

176. algebra

find the indicated out puts for f (x)=5x^-2x f(0)= f(-1)= f(2)=

177. math

at acertain time of day a persons shadow is twice her height.what ratio desribes this relationship

178. Science

Respected teachers, I have got assignment that i have to write about 7 scientists i am in class 6 and we have to write 1 page for 1 scientist we have to write about their life style and what they invented and how they were great and i know names of some

179. 5th grade/social studies

Do you know of a website that would have information on a job as a Miller?

180. Honors Chemistry

Help! I do not understand this question. What do you think the effect of concentration might be on the perceived level of a molecules absorbance?

181. Honors Chemistry

Absorbance spectroscopy relies on the fact that specific molecules can only absorb certain wavelengths. Explain how this could be used in a)microwaves and b) astronomical discoveries/interpretations. Thank you for any help with this... :)

182. PreCalc (Just Can't Comprehend)

Find the dimensions of the rectangle with minimum perimeter if its area is 400 square meters. Find the least perimeter. I know that a rectangle has two sides that are equal and two other sides that are equal but I am unsure about what type of equation to

183. Health

What are some specific programs/medications that help deal with anabolic steroids?

184. algebra

simplify: (p^-4+m p^2m)^-4 ________________ (p^-4)^-m

185. Natural science

short myths associated with Eclipse

186. electrical

am meter and millionm meter are conncded in with the load whoes current theyare

187. algebra

type an inequilty -0.2x

188. speech

motivational speech

189. Pigskin Geography

For numbers 13 and 14 on week 8 I cannot find how much larger houston is than buffalo and how much larger minneapolis is than Green Bay. Please Help!!! Thanks:)

190. econmics

Individuals in a market who must take the market price as given are

191. algebra

-4x>1 - 11 typeb an inequslity or fraction

192. history

how did canada become a peacekeeping nation? i wrote about lester b pearson is there another point?

193. Math

How would I factor this? (x-3)^3+ (3x-2)^3 Can someone explain this to me step by step? thanks

194. electrical

when ever a conductor move thought a magnetic field a voltage is in cluded what factors deter mine the amount of voltage that is generated

195. algebra

i have to find the slope and the y intercept i don't no how to do slopes f (x)=-5x-2 the slope is the y intercept is(0, )

196. science

a change in size, shape or form is what kind of change?

197. maths

The Hypotenuse of a right- triangle is 13 cm and the angle of the line opposite to the hypotenuse is 35 find the other two sides.

198. Math

What is the percentage of difference of 195 and 85?

199. electrical

in a simple de ciruit the voltage a cross a componet and were measured what equation can be used to determine the resistance of the componnet

200. electrical

in a simple de ciruit the voltage a cross a componet and were measured what equation can be used to determine the resistance of the componnet

201. electrical

the ability of measure very small auantites is called it

202. Math

A block of cheese weighing 2.6 pounds (lb) sold for \$15.55. Find the cost per pound to the nearest cent.

203. philosophy

1#Do the same pshcological illness occur in all cultures?

asked by kelvin andrew
204. electrical

list two characters of this tpye of motor

205. Math

The circular surface of a table has a diameter of 3 ft. What will cost to have the top refinished if the company charges \$5 per square foot for the refinishing? Use 3.14 for and round your answer to the nearest cent.

206. Math

A block of cheese weighing 2.6 pounds (lb) sold for \$15.55. Find the cost per pound to the nearest cent.

207. calc

What are the first and second derivatives of y = (1/x^2)-(1/(x-2)^2)?

208. math

What is the geometrical meaning of the central extension of the algebra of diffeomorphisms of the circle?

209. algebra

-21+3z/7 / 4z-28/49

210. Math

How do I factor 3x2 =4x +1 and 3x2-2x-8

211. sci

what would be some environmental problems that would call for energy conservation i'm drawing a blank can some help please

212. Healthy Decision Making

What are three things young people can do to reduce risks and avoid injury? Can someone help me answer this question. Thank you very much.

213. Algebra

I'm not sure how to find the domain for the 4th root of (1-x^2). Can you break down the process for me please?

214. crt 205

State one argument made by the author. "President Obama's decision to force American taxpayers to foot the bill for abortions in the District of Columbia will cause the deaths of at least 1,000 more unborn children each year." After the House acted

215. Math

Use the data in the grade-distribution table below to construct a circle graph showing the distribution of grade types in Ike’s class. Grade..Frequency A......2 B......8 C......11 D......2 F......1 How would the graph in Exercise 7 change if there were

216. Social Studies

Do you know a website that would have information about a job as a Miller?

217. Algebra 3

how would I write this in quadratic form? 4x to the eighth power plus 4x to the fourth power plus seven.. I am so confused..

218. mth/213

Let U = {u, n, i, t, e} A = {n, i, t} B = {n, e} C = {u, n, i, t, e} D = {u, e} Find each of the following: (a) A ¿B

219. algebra

simplfy 7[-93-(98-32)]= help

220. electrical

the opposition thata coil affers to the of alternating current is called

221. child

Books that promote tolerance include A. stereotyped characters. B. sexist attitudes. C. male and female heroes. D. racist beliefs

222. electrical

to which side of the source is the position terimnal danammeter conected to when it is placed into circurit

223. electrical

what tpye detectric motor operate on both alternating current and direct circuit

224. Repost- Biology

A scientist separates plant pigments from leaf, root, and stem samples by paper chromatography. All the leaf chromatographs include yellow green and blue green spots but none of the root and only a few of the stem chromatographs have these green spots.

225. mgt 330

Do you believe that employees can learn/be trained to be more emotionally intelligent?

226. Pre Calc

in a 9 digit integer, each of the digits 1,2,3,4,5,6,7,8,and 9 appears exactly once. Find the probability that the integer is divisible by 9.

227. help

An investment of \$10,000 in the Emerging Country Debt Fund in 2001 was worth \$24,780 in 2006 find the 5-year average annual return.

228. CRT 205

ON Abortion 1 Identify the principal issue presented by the source. 2 Identify any examples of bias presented by the author. If none exist, explain how you determined this. 3 Identify any areas that are vague or ambiguous. If none exist, explain how you

229. COM 150

characteristics of expository essays

230. Math

Gasoline is about \$2 per gallon. You use about 1 1/2 gallons each day driving to and from work. How much should you budget for gasoline over the next month (about 20 workdays)?

how is ignous rock formed

232. science

bounce gruond based microwaves off of rain and snow.used to track the direction and speed of storms?

233. Math

Find the circumference of a circle with a radius of 5.5 in. Use 3.14 for and round your answer to one decimal place.

234. Math

calculate the range, variance, standard deviation, and interquartile range for the data set given {72, 80, 80, 82, 88, 90, 96}

235. Math

What is the rule _,68,94_,120.

236. To. Ms. Sue

Ms. Sue can you please take a moment to look at my post, I don't think I have done it right, thanks.

237. math

8 1/7 x 3 7/8

238. Statistical reasoning in Psychology

4. Suppose that previous studies have found that the mean amount of sessions necessary to “cure” depressive patients using a particular therapeutic model is 25 sessions, with a standard deviation (σ) of 4. A new model is introduced, and you want to

239. sat scores

is an 950 on the sat test bad?

240. Marketing

What is the decision facing True Religion Jeans? (book I'm using is Marketing, real people, real choices)Can anyone help me with this? Thanks

241. Health

How are messages about steroids delivered by media?

242. tutor period

what is a blog and how do you write one