Questions Asked on
October 19, 2008

  1. college physics help please...

    The location of the center of mass of the partially eaten, 11 inch diameter pizza (r = 5.5) shown in Figure 9-20 is Xcm = -1.1 in. and Ycm = -1.1 in. Assuming each quadrant of the pizza to be the same, find the center of mass of the uneaten pizza above the

    asked by sally
  2. math

    what are the similarities and differences between an arithmetic sequence and a linear equation? ok i know that arithmetic sequence is a sequence of real numbers for which each term is the previous term plus a constant (called the common difference). For

    asked by Claudia
  3. PHSICS

    A boxcar of mass 200 tons at rest becomes uncoupled on a 2.5 degree grade. If the track is considered to be frictionless, what speed does the boxcar have after 10 seconds?

    asked by NICKI
  4. physics

    A 20kg traffic light hangs midway on a cable between two poles 40meters apart. If the sag in the cable is .4 meters, what is the tension in each side of the cable?

    asked by Elaine
  5. chemistry

    What is the enthalpy for reaction 1 reversed? reaction 1 reversed: 2CO2+3H2O=C2H5OH+3O2 express the answer in kJ/mol

    asked by Lilit***
  6. Math

    Kelly subtracted 2.3 from 20 and got 17.7. Explain why this is reasonable.

    asked by Jordan
  7. phys

    A long distance swimmer is able to swim through still water at 4km/hr. She wishes to swim from Port Angeles, WA due north to Victoria, B.C., a distance of 50km. An ocean current flows through the Strait of Juan de !@#$%^&a from west to east at 3km/hr. In

    asked by Christine
  8. physics help please....

    After fixing a flat tire on a bicycle you give the wheel a spin. (a) If its initial angular speed was 5.17 rad/s and it rotated 10.6 revolutions before coming to rest, what was its average angular acceleration? rad/s2 (b) For what length of time did the

    asked by sally
  9. physics

    Two blocks, joined by a string, have masses of 6 and 9kg. They rest on frictionless horizontal surface. A 2nd string, attached only to the 9kg block, has a horizontal force = 30N applied to it. Both blocks accelerate. Find the tension in the string between

    asked by Tiffany
  10. Pre-calculus

    Nathaniel pulls a sled along level ground with a force of 30 newtons on the rope attached to the sled. If the rope makes an angle of 20 degrees with the ground when it is pulled taught, find the horizontal and vertical components of the force. Round to the

    asked by Lucy
  11. college level physics

    a 40 kg skier skis down a frictionless slope angled at 10 degrees to the horizontal. Assume the skier moves in the negative direction of an x axis along the slope. A wind force with component Fx acts on the skier. What is Fx is the magnitude of the skier's

    asked by jane
  12. 12th grade calculus

    find the lines that are (a) tangent and (b) normal to the curve at the given point x^2 + xy - y^2 = 1

    asked by dt
  13. physics

    A student is trying to decide what to wear. His bedroom is at 20.0°C. His skin temperature is 36.0°C. The area of his exposed skin is 1.46 m2. People all over the world have skin that is dark in the infrared, with emissivity about 0.915. Find the net

    asked by tony
  14. college Chemistry

    An adult takes about 15 breaths per minute, with each breath having a volume of 500mL. if the air that is inhaled is "dry", but he exhaled air is 1 atm pressure is saturated with water vapor at 37 degree C(body temp), what mass of water is lost from the

    asked by CM
  15. physics

    If the density of a medium is 1000 kg/m3 and the propagation speed is 1540 m/s, the impedance is rayls.

    asked by julie
  16. CHemistry Please Help..............LAB

    Standardization of the Sodium Thiosulfate Solution Make up a standard solution of potassium iodate by accurately “weighing by difference” about 0.1 g of KIO3 and placing it in your 100 mL volumetric flask. Fill the flask to mark with distilled water.

    asked by Sara
  17. physics

    constant acceleration or constant velocity which is harder to maintain over a short distance

    asked by sam
  18. Physics

    Is warm water heating a person swimming in it, convection or conduction; what about warm water heating the air above it?

    asked by Isobelle
  19. physics! please help

    A long distance swimmer is able to swim through still water at 4km/hr. She wishes to swim from Port Angeles, WA due north to Victoria, B.C., a distance of 50km. An ocean current flows through the Strait of Juan de !@#$%^&a from west to east at 3km/hr. In

    asked by Tiffany
  20. chemistry

    A frost-free refrigerator uses about 640 kWH of electrical energy per year. Express this amount of energy in J: kJ: Cal:

    asked by Lilit***
  21. chemistry

    What is the balanced chemical equation for the reaction used to calculate of delta Hdagrees f of CaCO3(s)?

    asked by Lilit***
  22. government

    Advocates of a parliamentary system argue that congress is inefficient, moves slowly, and develops policies laced with compromises. What evidence exists to support this negative evaluation? Discuss the intentions of the founders, the electoral system,

    asked by Anonymous
  23. Physics

    A bridge that was 5.0m long has been washed out by the rain several days ago. How fast must a car be going to successfully jump the stream? Although the road is level on both sides of the bridge, the road on the far side is 2.0m lower than the road on this

    asked by Joyce
  24. Science

    If a substance undergoes a chemical change, could its volume change?

    asked by Nyesha
  25. microsoft

    Your assignment is to organize a charity event. You can be as creative as you want here. Here are conditions of your assignment: You must use at least two programs, one of which must be a Windows program such as Word, WordPad, or Paint. Describe the

    asked by Anonymous
  26. Microsoft Word file glitch

    I must have hit the wrong key. As I was writing a Microsoft Word document, the whole screen changed and now everytime I hit the "Enter" bar, a black Paragraph symbol prints. Each letter has a dot between it as though I am seeing the visual representation

    asked by Margaret
  27. Science

    What is part of the mantle that can bend like plastic?

    asked by Elise
  28. English Essay Thesis

    Here's my thesis for an essay on the Scarlet Letter. In Nathaniel Hawthorne’s The Scarlet Letter, Hawthorne creates Pearl as an allegory of Hester Prynne’s anima, a character foil unrestricted by circumstantial limits aggrandized by Hawthorne’s use

    asked by Sahil
  29. History

    How did John Adams help establish a stable government after the constitution? Like I know he almost put us in the Quasi-War and threatened civil rights with the Alien & Sedition Acts, but how did he HELP establish a stable gov't?

    asked by Phil
  30. operating system

    a. What is the name and version number of the operating system? Windows XP Professional Service Pack 2 b. What kind of user-interface is used? window XP theme c. Can you see an indication that this operating system provides a job management function? If

    asked by denise
  31. physics

    A transfer of heat occurs with a pot of 8.0 kg of water that changes from 400 degrees kelvin to 320 degrees kelvin. How much heat is absorbed or given off?

    asked by sammi
  32. Biology

    How many different kinds of monomers are there in starch?

    asked by Cindy
  33. biology

    hi Exercise makes your heart pump faster increasing your heart rate. is there a chemical reaction for it thanks

    asked by caitlin
  34. Physics

    As you drive down the road at 21 m/s you press on the gas pedal and speed up with a uniform acceleration of 1.24 m/s2 for 0.60 s. If the tires on your car have a radius of 33 cm, what is their angular displacement during this period of acceleration? in

    asked by joe
  35. physics

    A tennis ball has a velocity of 25 m/s and a mass of 57.5 g. After the ball hits a tennis racket, the velocity becomes twice that of the original speed and goes in the opposite direction. What is the force between the ball and the racket if the time that

    asked by adriana
  36. 12th grade calculus

    find the lines that are tangent and normal to th ecurve at the point given 1. 2xy+piesiny=2pie (1, pie/2) 2. x^2cos^2y-siny=0 (0, pie)

    asked by elley
  37. math

    what is the area of a square 2 1/2 m. on a side?

    asked by ahsley
  38. chemistry

    What is 1.384 kg multiplied by 5.4 square meters?

    asked by Paige
  39. physics!

    A soccer ball is kicked from the top of a 256 foot building with an initial velocity of 6 ft/s. What will the ball's velocity be at the instant before it strikes the ground?

    asked by carissa
  40. History

    According to the U.S Constitution, what two duties do states have to other states?

    asked by Elizabeth
  41. Physics

    Tank-killer rounds (fired by another tank) consist of a shell whose projectile is a long, slender (18.2 mm diameter by 31.7 cm long) cylindrical rod of depleted uranium of density 18.7 gm/cm3. Assume that the shell’s speed is 1550 m/s. You have

    asked by Ryan
  42. Physics

    A car with a mass of 950 kg and an initial speed of v1 = 21.5 m/s approaches an intersection, as shown in the figure. A 1300 kg minivan traveling northward is heading for the same intersection. The car and minivan collide and stick together. If the

    asked by Will
  43. physics!

    A girl shoots an arrow from the top of a cliff. The arrow is initially at a point 20 meters above the level field below. The arrow is shot at an angle of 30 degrees above the horizontal with a speed of 39.2m/s. How far out from the base of the cliff will

    asked by Danreb
  44. math

    My next-door neighbor loves to grow things in her garden, but she likes her garden neat, so she always plants in a exact square with five rows of five plants each. Each row in each direction has exactly one plant of each variety, and so do the center

    asked by Dezy
  45. Math

    What properties are expressed in these equations? a=b a + [c + (-c)] = b + [c + (-c)] Also, would the property expressed in -a=-b be the substitution property of equality?

    asked by Lilly
  46. US History

    How was trade affected by the American Revolution? Tobacco was exported more during the years of 1767-1804, but then it started to decrease.

    asked by adam
  47. Health

    A patient's attorney asks her physician for medical records about the patient's care accident and promises to provide a written authorization from the patient later. The physician gives the attorney the patient's entire file, including her records about

    asked by Dee
  48. english

    which ONE of these sentences uses the word connoisseur incorrectly? A connoisseur of opera, my cousin also enjoyed the Grand Ole Op'ry Elisa, a philanthropist and connoisseur, left her collection of 20th century art, valued at more than 40 million dollars,

    asked by kayla
  49. Essay

    i'm writing an inverted intro paragraph and these are the sentences i have so far. 1. ? 2. giving back to the community 3. community service 4. the youth volunteering 5. benefits of youth volunteering for commuity service can anyone think of a beginning

    asked by Anna
  50. japan

    Where can I find a climate map of the country Ogilvie?

    asked by Mahlei
  51. Physics

    How do you find the "range" for a projectile launched where feta = 0 degrees? What formula do you use? Also, a soccer ball is kicked horizontally off the top of a tall building, describe the ball's initial velocity both in terms of its magnitude and its

    asked by meg
  52. CHemistry Please Help. DR. BOBB

    Standardization of the Sodium Thiosulfate Solution Make up a standard solution of potassium iodate by accurately “weighing by difference” about 0.1 g of KIO3 and placing it in your 100 mL volumetric flask. Fill the flask to mark with distilled water.

    asked by Sara
  53. enviromental science

    what are three ocean resource problems

    asked by Michelle
  54. stats

    Express the following quantities to the correct number of significant figures: (a) 23.043 ± 4.321 (b) 67 ± 9.023 (c) 33.1492934 ± 2 Isn't (a) already the correct number of significant digits? Would (b) be 67.000 ± 9.023? Would (c) be 33.1492934 ±

    asked by Sam
  55. physics please help

    A soccer ball is kicked from the top of a 256 -foot building with an initial velocity of 6 ft/s. How far from the base of the building will the ball land?

    asked by carissa
  56. government

    PACs have been called “collection agencies” for interest groups. They were created to evade laws that forbid corporation and labor unions from giving money “directly” to federal candidates. These laws still exist. Aren’t the laws now a farce? Why

    asked by Anonymous
  57. government

    Interest groups attempt to stimulate “public support” for their causes. One tactic is to manipulate public opinion through use of the media. To illustrate, Elizabeth Whelan, executive director of the American Council on Science and Health, report that

    asked by Anonymous
  58. PHYSICS

    A block is on a 24 degree incline, with a rope attached to a spring at the top of the ramp which has a spring constant of 65 N/m. If the spring is stretched 1.3 m, the coefficient of friction is 0.01, and the acceleration of the block is 0.35 up the

    asked by Bob
  59. government

    Since passage of the Federal Regulation of Lobbying Act in 1964, only four persons have been prosecuted under its provisions- with only one conviction. Why is the law so ineffective? Why doesn’t Congress enact a stronger law? Why would the First

    asked by Anonymous
  60. english

    which is the incorrect usage of prescient/prescience Because of a prescient need for solitude, I left the party and walked home alone. Only his prescient avoidance of the bridge saved him from death. With great prescience she packed both a flashlight and

    asked by kayla
  61. R.E

    What is the proper name for the Hindu Monkey God? Thanks

    asked by Chanel
  62. history american revolution

    The inhabitants of the English colonies of North America have the rights: 2. That our ancestors, who first settled these colonies, were at the time of their emigration from the mother country entitled to all rights, liberties, and immunities (freedom from

    asked by raleigh
  63. college chemistry!! need help now!!

    An adult takes about 15 breaths per minute, with each breath having a volume of 500mL. if the air that is inhaled is "dry", but the exhaled air at 1 atm pressure is saturated with water vapor at 37 degree C(body temp), what mass of water is lost from the

    asked by CM
  64. 9th grade

    English: I need help writing a skit on a greek myth, primarily about Thesis.

    asked by John Jacob
  65. Education

    Write a 1,750-2,100 word persuasive paper supporting your opinion on Are Uniforms a Good Way to Improve Student Discipline and Motivation

    asked by Kristi
  66. chemistry

    how would i draw the expected proton nmr spectra and draw the integrated areas for each signal for 2,5-dimethyl-2,4-hexa diene? - i have 3 unique protons. 2 at 5.5, 6 at 1.5, and 6 at 1.2 1-phenyl-2-methylpropare? - i have 3 unique protons- 5 at 7.5, 2 at

    asked by jen
  67. math-calc

    show that 1-(x/2) is the tangent line approximation to 1/sq rt(1+x) near x=0 i know the formula for apprx. is y = f(a)+f'(a)(x-a) but i don't understand how to work backwards to get this.

    asked by joe
  68. English

    1. What did Mike need at the store? He needed some things. 2. Who went shopping together? Mike and Ann did. 3. What did Mike and Ann do? They went shopping together. 4. What did they look at? They looked at the yellow bananas, the green peas, and the

    asked by John
  69. Experimental Design

    I'm doing research on reasons for the canceling of soap operas. I cant seem to find any information as to WHY they cancelled south of nowhere. Many sites say that it is just ending, but I need help finding what caused it to end. can someone help me on this

    asked by Liz
  70. physics

    A 50 kg block is on a 30 degree incline. The coefficient of friction between the block and the incline 0.05. If it is given an initial velocity of 10 m/s up the incline, how far will it travel until it stops?

    asked by Fred
  71. college biology

    why is autophagy not considered endocyctosis?

    asked by kate
  72. chem

    what are the mono saccharides in sophorose

    asked by Anonymous
  73. math

    If you have a rectangle that is 8cm by 6cm and you cut it diagonally, what other 4 geometric shapes can you create

    asked by Mark
  74. statistics please help

    A student measures three lengths a, b and c in cm and a time t in seconds: a = 40 ± 5 b = 30 ± 3 c = 20 ± 1 t = 1.2 ± 0.1 What is a+b a+b+c a/t (a+c)/t Calculate (1.23 ± 0.03) + pi Question 9.4. Calculate (1.23 ± 0.03) × pi Can you do a sample

    asked by Sam
  75. physics again.

    A boxcar of mass 200 tons at rest becomes uncoupled on a 2.5 degree grade. If the track is considered to be frictionless, what speed does the boxcar have after 10 seconds?

    asked by Tiffany
  76. physics!

    A girl shoots an arrow from the top of a cliff. The arrow is initially at a point 20 meters above the level field below. The arrow is shot at an angle of 30 degrees above the horizontal with a speed of 39.2m/s. How far out from the base of the cliff will

    asked by Danreb
  77. government

    The Founding Fathers worried about the ability of the “average” citizen to make wise decisions on political issues. This concern seems to remain valid. Why hasn’t the situation changed given the increase in the number of Americans receiving

    asked by Anonymous
  78. Math- brain teasers!

    okay so i was given a worksheet with 15 word problems. i couldn't solve 2 so if you could help me out it would be good.. If you ask Catwoman how many cats she has, she answers with the riddle, 'five-sixths of my cats plus seven.' how many cats does she

    asked by Brennan
  79. Chemistry

    assuiming that the calorimeter contains 5.00 * 10^2 g of water and the intial temperature is 30.0 degreddc, what will the final temperature be?

    asked by -
  80. government

    Long ago, James Prothro and Charles Grigg discovered a problem with the views of Americans on democratic values. The general public manifest opinions that are often contrary to basic values essential to sustain a democratic government. Political elites are

    asked by Anonymous
  81. Chemistry

    assuiming that the calorimeter contains 5.00 * 10^2 g of water and the intial temperature is 30.0 degreddc, what will the final temperature be?

    asked by priya
  82. Science

    suppose that sunlight falls on both a pair of reading glasses and a pair of dark glasses. Which pair of glasses would you expect to become warmer? defend your answer.

    asked by Maricela
  83. History

    What authority does Congress have over other states according to Article III of the Constitution? Over federal territories?

    asked by Joshua
  84. government and politic

    the percentage of people between the ages of eighteen and twenty who are registered to vote has dropped much more than that of people aged sixty-five and over. Does this indicate that voting turnout will continue to decline in the future?

    asked by Anonymous
  85. physics

    why is it harder to maintain costant accleration rather than cosntant velocity when walking

    asked by bill
  86. chemistry

    What is delta Hrxm dagrees for the following chemical reaction? CO2(g)+2KOH(s) = H2O(g)+K2CO3(s) Express your answer in numerically, in kJ

    asked by Lilit***
  87. government and politic

    The unemployed are much less likely to vote. Isn’t this fact detrimental to their well-being? Doesn’t it in effect allow politicians to ignore the plight of jobless? What factors account for the lack of involvement by the unemployed in an activity that

    asked by Anonymous
  88. government

    Is it fair to hold a member of the incumbent party – such as Nixon in 1960 or Humphrey in 1968- responsible for the policies of the president, even though the individual may have had no role in formulating them? Are voters better off if it is fair? Is

    asked by Anonymous
  89. Math

    Solve the following system of equations. x+2y=9 (1) x=3-2y (2)

    asked by Jane
  90. government

    be aware of two significant facts about the legislative process. First, almost all legislation is considered in subcommittees composed of from six to ten members. Second, most legislation enacted into law passes without any changes in the way a bill is

    asked by Anonymous
  91. stats

    You are determining the period of oscillation of a pendulum. One procedure would be to measure the time for 20 oscillations, t20, and repeat the measurement 5 times. Another procedure would be to measure the time for 5 oscillations, t5, and repeat the

    asked by Sam
  92. social studies

    how do I make a virtual field trip for upper elementary and middle school students about social studies.

    asked by sally
  93. math

    -21-(-21)= would this be 0 or 42

    asked by deedee
  94. 6th grade advanced math

    1) -/-3/____ -3 //= what's the absulute value of. In the blank either put < or >! 2) In three plays, a football team gains 11 yd, loses 18 yd, and gamins 3 yd. Write and evaluate an addition expression to model the situation. [please explain how you got

    asked by someone
  95. essay

    in the play Hamlet by william Shakespeare, are there something rotten in the state of Denmark? and who responsible for that?

    asked by dt
  96. english

    Rewrite this sentence into the active voice by filling in the blank: ORIGINAL: The agency conducted an investigation into the matter. REVISED: The agency __________ the matter. ORIGINAL: Attempts by economists at defining full employment have met with

    asked by rachel
  97. math

    7/9 - (-13/18)=

    asked by deedee
  98. Physics

    Is warm water heating a person swimming in it, convection or conduction; what about warm water heating the air above it?

    asked by Isobelle
  99. hisotry

    what is the politics of consensus?

    asked by Anonymous
  100. english

    What is the topic sentence I think it is sentence 3 please let me know if you think it is as well Voice mail is usually part of your firm’s phone system. It is a way to digitally record messages, and it allows “random access” so you can skip, delete,

    asked by michelle
  101. PHYSICS

    A 50 kg block is on a 30 degree incline. The coefficient of friction between the block and the incline 0.05. If it is given an initial velocity of 10 m/s up the incline, how far will it travel until it stops?

    asked by Bartholomew
  102. Precalc

    I don't know if i did this correctly is(x-1) a factor of 17x^10+16x^6+1 its no.. right?

    asked by Vi
  103. english

    One of the two passages below follows the old-new contract. Identify it. I think it is passage one can anyone help verify if I am correct 1. The old/new contract is another principle for writing clear closed-form prose. Beginning your sentences with

    asked by michelle
  104. Math

    Soybean meal is 12% protein, cornmeal is 6% protein. How many pounds of each should be mixed together in order to get a 240-lb mixture that is 10% protein?

    asked by Jane
  105. Evironmental science

    Over a billion people in developing nations live in households that have too little land to meet even their own needs for food and fuel. What options are available to these people? What are the advantages and disadvantages of each of the following options.

    asked by donna
  106. english

    In the following passage, a linking device has been omitted. Choose the word that would make the passage coherent: __ this technique won’t work for everyone, it helps many people get a good cache of ideas to draw on. 1. However 2. Although Please help

    asked by rachel
  107. algebra with pizzazz

    Who discovered the world's smallest glacier?

    asked by nikole
  108. physics

    A glass window pane has an area of 3.50 m2 and a thickness of 0.600 cm. If the temperature difference between its surfaces is 27.0°C, what is the rate of energy transfer by conduction through the window? I tried using the formula P=ka[(th-Tc)/l] my answer

    asked by tom
  109. algebra

    In any triange, the sum of the measures of the angles is 180degrees. In triangle ABC, angle A is four times as large as angle B. Angle C measures 20degrees less than angle B. Find the measure of each angle.

    asked by misha
  110. physics

    experiment times: .15, .13, .16, .14, .15, .14, .15, .14 what is the the best estimate and estimate the uncertainty?

    asked by Brittany
  111. Social Studies

    I have an upcoming debate about the Canadian Confederation. I'm on the side of Newfound land and I'm stating why I should join the Confederation. - It will get more money since Britain won't longer carry the costs - Canada promised Newfoundland railways

    asked by Nach
  112. biology

    would you expect to find epithelial tissue in other organisms?

    asked by sam
  113. 11 grade world history

    what leisure activities flourished at the turnof the 20th century

    asked by tania
  114. Philosophy

    What is traditional moral and political philosophies and modern moral and political philosophies?

    asked by Sara
  115. 12th AP Calculus

    find the dy/dx of: x^2=(x-y)/(x+y)

    asked by dt
  116. 12th AP Calculus

    find the dy/dx of: y=3(cscx)^3/2

    asked by dt
  117. 12th AP Calculus

    use implicit differentiation to find dy/dx and then d^2y/dx^2 x^2/3 + y^2/3 = 1

    asked by dt
  118. Precalc

    if a question says is -a a zero of (some equation) can you just plug in all the x's as -a and see if you get zero?

    asked by Vi
  119. Science

    in science weve been given this cheese thing and i don't know what the big idea of particles OR the big idea of engery is! SOS

    asked by jess
  120. Microeconomics

    Monopolistic Competition The administrtive burden of regulating price in monopolistically competive market: A. small due to economies do scale B. large because price is usually below marginal cost C. large because of the large number of firms that produce

    asked by G
  121. precalc

    If it says is (some equation) divisble by -a can you just pug in -a for x and see fi you get zero?

    asked by Vi
  122. Science.

    what natural resource is plastic made from??

    asked by Kristin;
  123. government and economic

    banker, doctors, corporation presidents, and wall street lawyers (the traditional elite) veruss government officials, research scientists, professors, and the mass media. Which group would benefit most from each of the following developments? - Large-scale

    asked by chen
  124. math

    how many seven digit numbers can be formed with the digits 1,2,4,7 if NO repetition is allowed

    asked by diane
  125. Physics

    Is warm water heating a person swimming in it, convection or conduction; what about warm water heating the air above it?

    asked by Isobelle
  126. Chemistry-precipitates

    What precipitates form when Cu(NO3)2, CuSO4, NH4OH, and CaCl2 only two of the above added together. I need all combinations. What color are they? Ik Cu reacts with NH4OH. is the precipitate white?? what about the others?

    asked by Giznelbell
  127. history

    desribe the social, economic, and political composition of the decade of corporate greed and how it affected the political climate of the 1980's.

    asked by Anonymous
  128. math

    what is 14-9x=-8(10+x)

    asked by whitney
  129. Chemistry!

    Are hydrocarbons always nonpolar??

    asked by Sue Ellen
  130. science. please help a.s.a.p

    i have to do a packet and i cant under stand it. it says ' sea level 10 degrees = 1 atmosphere and then i have to do tropopause ,stratapause and mesopause and the rest of it says . an atmosphere is a unit of air pressure . 1 atmosphere +average air

    asked by Anonymous
  131. analytic geometry

    the base of an isoceles triangle lies on the x-axis. The coordinates of the midpoints of the equal sides pf the triangle are (2,3) and (-2,3). What are the coordinates of the vertices of the triangles? Please help.

    asked by Cynthia
  132. help

    Teachers sometimes want students to work together in order to complete an assignment or a task. Two common instructional methods used in the classroom are group investigation and cooperative learning. When is it appropriate to use group investigation in

    asked by dawn
  133. Sociology

    I had this question in a test and now im preparing for my exam. I didn't know what to write. Can you help me on this. To what extent do elite groups dominate government decision making in democratic societies? Thank u.

    asked by Ishani
  134. Math- Ideas only

    I need some help on getting ideas for my limits & continuity calculus project! For the limits project: I have to conduct an "interview with a limit" (Q&A format).I have to include factual information like definitions, properties, theorems, etc. I also have

    asked by RJ
  135. Precalc max and min wd problems

    when an auto dealers mark up over factory price is x dollars per care he dealer sells (300-2/3 x)cars per month what value of x will the profit be the greatest?

    asked by Brian
  136. social important......help

    why did alexander poured out drinking water offered to him in the desert? what was his goals and what did he get in result?

    asked by Anonymous
  137. EARTH SCIENCE

    i have to do a packet and i cant under stand it. it says ' sea level 10 degrees = 1 atmosphere and then i have to do tropopause ,stratapause and mesopause and the rest of it says . an atmosphere is a unit of air pressure . 1 atmosphere +average air

    asked by josh
  138. math

    -29,-7098,729,-2

    asked by ra ny
  139. politic

    is it fair to hold a incumbent party???

    asked by opinion
  140. social plz...help

    what are or was the architecture and drama of United States.???

    asked by Anonymous
  141. Physics

    Hi Guys! Need help with this physics problem, I have no idea how to set it up or how to visualize it but would appreciate any help. Instructions for finding a buried treasure include the following: Go 80 paces at 235°, turn to 130° and walk 115 paces,

    asked by Kirsten
  142. us history

    If you had to give a reason why students should learn/study social studies in school what would you say?

    asked by Jackie
  143. english

    sing JOhn Mayer's song belief Explain/prove how two charcters of the Crubible by Arthur miller plays the role of John Mayer's thesis about belief in the play.

    asked by adam
  144. EARTH SCINECE PLEASE HELP PLEASE

    i have to do a packet and i cant under stand it. it says ' sea level 10 degrees = 1 atmosphere and then i have to do tropopause ,stratapause and mesopause and the rest of it says . an atmosphere is a unit of air pressure . 1 atmosphere =average air

    asked by Anonymous
  145. physics

    Ok, I am not sure how to about about solving this problem and have been staring at it and drawing pictures for several hours now. Do I use the spring equation for potential energy? Or is it a momentum problem where I should assume the spring has it's own

    asked by Alice
  146. Pre-calculus

    a triangular shelf is to be placed in a curio cabinet whose sides meet at an angle of 105 degrees. If the edges of the shelf along the sides measures 56 centimeters and 65 centimeters, how long is the outside edge of the shelf? Round to the nearest tenth.

    asked by Lucy
  147. Physcology

    Final Project: Interview Profile • Resources: Ch. 5 (pp. 213-19); Ch. 6 (pp. 225-38); Ch. 9 (pp. 330-39); Ch. 11 (pp. 441- 46); Ch. 15 (pp. 571-80) in Psychology: An Introduction (12th ed.) Appendix A • Due Date: Day 7 [post to the Individual forum]

    asked by Vivian
  148. help asap please

    intelligences includes eight different types of intelligence: (1) linguistic, (2) logical-mathematical, (3) spatial, (4) musical, (5) bodily-kinesthetic, (6) interpersonal, (7) intrapersonal, and (8) naturalistic How can you provide for multiple

    asked by dawn
  149. us history

    How would I find a timeline of important events from 1996 - 2008?

    asked by John
  150. GOV/ECO

    Is education a government issue or problem? If so how?

    asked by SENiOR '09
  151. Pre-calculus

    A surveyor sets a stake and then walks 150 feet north, where she sets a second stake. She then walks 300 feet east and sets a third stake. How far from the first stake is the third stake? Round to the nearest tenth. Thanks for your help.

    asked by Lucy
  152. math

    please help me with my math. Use the distance formula to find the distance between the following points. Show all your work. Round to the hundredths place. (4,5) and (7,3) (2.4,8) and 1,6.3) (29,4.1) and (53.2, 100)

    asked by logan
  153. Pre-calculus

    A golf ball is hit with an initial velocity of 135 feet per second at an angle of 22 degrees above the horizontal. Will the ball clear a 25 foot wide sand trap whose nearest edge is 300 feet from the golfer? Will be through with all the word problems soon.

    asked by Lucy
  154. pshyics

    why is it harder to maintain costant accleration rather than cosntant velocity when walking

    asked by fred
  155. Calculus

    I need some help on getting ideas for my limits & continuity calculus project! For the limits project: I have to conduct an "interview with a limit" (Q&A format).I have to include factual information like definitions, properties, theorems, etc. I also have

    asked by RJ
  156. business

    Do you have any Business reasearch students on this site.

    asked by jean
  157. Math

    How do i find area? its length times width right?

    asked by Joe
  158. social studies

    what are unique things to the american culture

    asked by Lisa
  159. congress and law

    why do congress pass the lobbying act when it was so ineffective?

    asked by LY
  160. DBQ Essay

    How long does the thesis usually have to be? Will 4 sentences suffice?

    asked by L
  161. Math

    is a star a sticker

    asked by ST
  162. R.E

    Please help, sorry if i keep re-posting but i have loads of R.E questions for my homework. What do Hindu's do with those who have died please? Thanks

    asked by Chanel
  163. government

    Advocates of a parliamentary system argue that congress is inefficient, moves slowly, and develops policies laced with compromises. What evidence exists to support this negative evaluation?

    asked by -
  164. earth science.

    i searched google and no help. i have been stuck for hours.i have to do a packet and i cant under stand it. it says ' sea level 10 degrees = 1 atmosphere and then i have to do tropopause ,stratapause and mesopause and the rest of it says . an atmosphere is

    asked by please help please
  165. englis

    using JOhn Mayer's song belief Explain/prove how two charcters of the Crubible by Arthur miller plays the role of John Mayer's thesis about belief in the play. Hi i need a lot lot of help with this. i don't which characters to use or how the play even

    asked by adam
  166. Philosophy

    What is the difference between rawls and Nozick when it comes to the distribution of Property?

    asked by Nichole
  167. R.E

    As i said before, sorry, i have an internet assesment test on R.E with questions on religions. On Which continent did Hinduism begin? Thanks

    asked by Chanel
  168. government

    Where can I find some facts or statistics on how much money the government gives to schools?

    asked by SENiOR '09
  169. Math

    An Ostrich can run 174 feet in 3 seconds. it costs $ 6:30 to mail a 6- pound package.

    asked by Shane
  170. physics

    what is the magnitude of the displacement of a car that travels half a lap along a circle of radius 150m? would the answer be half of the circumference or would it be the diameter of the circle?

    asked by Anonymous
  171. physics

    A train going from one station to the next on a straight section of track accelerates from rest at 1.4m/s^2 for 15s. It then proceeds at constant speed for 1100m before slowing down at 2.2m/s^2 until it stops at the station. What is the distance between

    asked by Anonymous
  172. Math Properties

    What property is expressed in the equality b + (-b) = 0?

    asked by Harley
  173. English

    What is the adverb for disorient? I've already tried -disoriently -disorientedly -disorientingly -disorientatedly not real words.

    asked by Achilles
  174. physics

    a ball is thrown upward with an initial velocity. What is it's velocity to halfway to its highest point? the answer is the square root of 2, but how do u get that answer?

    asked by Anonymous
  175. history

    what is difference between political and economical?

    asked by louie
  176. Caculus I

    If f is decreasing and f(20)=10, which of the following must be incorrect? Explain. a. (f^-1)'(20)=-3 b. (f^-1)'(10)=12 how do i work this problem? i'm kind of confused about inverse functions.

    asked by Rob
  177. math

    y=-2/3x-12

    asked by billy
  178. calculus I

    Find the tangent line approximation to 1/x when x=1 How do i find tangent line approximations??? my prof hasn't gone over this and i don't understand how to do it.

    asked by Rob
  179. health

    what are five appearance and grooming factors that result in a professional image.

    asked by robyn
  180. earthscience

    Would a field represented by a contour map change over time

    asked by jasmine
  181. biology, heart rate

    hi can you help me write a conclusion saying why your heart rate goes up when you do exercise? thanks.

    asked by caitlin
  182. 12th grade calculus

    find points on the curve x^2+xy+y^2=7 (a) where the tangen is parallel to the x-axis and (b) wehre the tangent is parallel to athe y-axis. (in this case, dy/dx is not defined, but dx/dy is. what value does dx/dy have at these point?)

    asked by -
  183. MATH

    A kennel owner has 164 ft of fencing to enclose a rectangular region. He wants to subdivide it into 3 sections of equal length. If the total area of the enclosed region is 576 square ft what are the dimensions. I know that the answer is 18 ft by 32 ft or

    asked by Brittany
  184. math

    i asked a question yesterday and i got an answer. my question was how many 7 digit numbers can be formed with the numbers 1,2,4,7 if a) repetation is allowed b) repetation is not allowed i got an answer but i needed 2 answers and im not sure if the answer

    asked by ken
  185. Math

    If a is 50 percent larger than c and b is 25 percent larger than c, then a is what precent larger than b?

    asked by Maggie
  186. math

    -56+x ------ -8

    asked by blt
  187. math

    -729,-7098,729,-2

    asked by ra ny
  188. government

    Where can I find statistics on a public school teacher salary VS a private school teachers salary?

    asked by SENiOR '09
  189. economics

    The forecasting method that involves using an average of past observations to predict the future (if the forecaster feels that the future is a reflection of some average of past results) is the

    asked by tommy
  190. math

    what is the slope and y-intercept of the line y=-2/3x-12

    asked by billy help me (asap) plz
  191. chemistry

    A mole of reacts at a constant pressure of 43.0atm via the reaction Before the reaction, the volume of the gaseous mixture was 5.00L . After the reaction, the volume was 2.00L . Calculate the value of the total energy change, , in kilojoules.

    asked by jessica
  192. Legal Aspects of health Information

    I am researching for a paper I have to write for school. I need to use medical Web sites. Having a hard time. One of my questions? Should corrections be date- and time-stamped?

    asked by Debbie
  193. science

    Having a problem with this question.. Why might the process of photosynthesis be considered a bridge between the living and nonliving parts of the world??

    asked by joe
  194. Science 275

    how did the U.N conference give awards for the urban development to porjects that improved human settlements?

    asked by angela
  195. Chemistry instruments

    what is that tool called the one you put drops of solution in to observe if a ppt is formed?? dish...something??

    asked by Giznelbell
  196. math

    If the lengths of two sides of a right triangle are 3 and 4, what is the least possible length of the third side?

    asked by Jenny
  197. Economics question

    14. Inflation increases the prices of all goods by 20%. At the same time, Ina’s income increases from $50,000 to $55,000. Compare the situation after both of these changes have happened with the situation before any of these changes have happened. a.

    asked by Jordon
  198. Physics

    A boxcar of mass 200 tons at rest becomes uncoupled on a 2.5 degree grade. If the track is considered to be frictionless, what speed does the boxcar have after 10 seconds?

    asked by Brittany
  199. Math

    Each sheet of stickers contains 1000 stars. The stars are arranged in 20 by 50 each sheet. Mr.Tinker used 3894 stickers during the first grading period. How many sheets was this? I say it's 4 sheets, correct? Thank you for your help.

    asked by ST
  200. math

    Do you know any sites that have circumcenter, orthocenter or centroid word problems?? i really need the practise.. please help!

    asked by Garrick
  201. Phyics

    A rubber ball with a radius of 4.8 cm rolls along the horizontal surface of a table with a constant linear speed v. When the ball rolls off the edge of the table, it falls 0.83 m to the floor below. If the ball completes 0.68 revolutions during its fall,

    asked by Andrew
  202. history

    i have to do a news article on gaius (caligula) caesar about a big event that happened towards the end of his life. does anyone know a big event that happened towards the end of his life? all i can really find is when he was assassinated and that wont

    asked by christina
  203. algebra, equations

    what is the slope and y-intercept of the line y= -2/3x-12

    asked by johnny
  204. Algebra

    I've been working on this for an hour and I know it's more simple than I'm making it. Please enlighten me. Cyclist 1 is traveling at 20 mph, Cyclist 2 is traveling at 14 mph. How long before they're 15 miles apart? I've tried to fill in a block diagram and

    asked by Brian
  205. 12th grade calculus

    find the derivative of y with respect to the appropriate variable. y=sin^-1ã2t ã =radical

    asked by dt
  206. social studies

    what is the dividing line between east & west in the usa and how are those two regions different?

    asked by briahnna
  207. college algebra word problem

    Lisa drove 8 miles to pick up her friend Laurie, and then drove 11 miles to a mall at a speed 15 mph faster. If Lisa'a total travel time was 24 minutes, what was her speed on the trip to pick up Laurie? Thank you!!

    asked by jenny
  208. 12th grade calculus

    find the derivative of y with respect to the appropriate variable y=sec^-1*5s

    asked by dt
  209. 6th grade

    I am doing a greek mythology project. I am Medusa,I need a creative way to symbolize Medusa. -other than just snakes in the hair...any help?

    asked by Shannon
  210. government

    Is there a chart where I can see what percentage of our tax dollars goes to what?

    asked by SENiOR '09
  211. AP Calculus 1

    find derivative of cos^4(x)^4

    asked by jo b.
  212. Plz help ASAP... Biology!!

    Why might the process of photosynthesis be considered a bridge between the living and nonliving parts of the world?? Thanks in advance.

    asked by joe
  213. writing

    or english, i have to write a creative paper about the stuff weve gone over in class. we have read one flew over the cuckoos nest, and a few other short sotries. i was wondering what i should write about becasue im stumped. this ranges all the way from re

    asked by clay
  214. Calculus

    Could someone please check my work on the following problems? I want to be sure that I'm doing them correctly; i'm just required to find the derivatives and then simplify. g(t)= t/sint g'(t)=1*sint-cost*t/(sint)^2 g'(t)=sint-cost*t/(sint)^2 y=ln(e^ax)

    asked by Joesph
  215. Science

    second largest classification group

    asked by Lauri
  216. college algebra

    find a real-life application of a quadratic function. State the application, give the equation of the quadratic function, and state what the x and y in the application represent. Choose at least two values of x to input into your function and find the

    asked by Renee
  217. College Calc I

    If f is decreasing and f(20)=10, which of the following must be incorrect? Explain. a. (f^1)'(20)=-3 b. (f^1)'(10)=12 how would i go about figuring this out??? i'm not sure exactly what the concept in question is here.

    asked by Eva
  218. science

    discuss the benefits and challenges of urbanization and how the U.N. Conference gave awards for urban development projects that improved human settlements.

    asked by angela