Most popular questions and responses by unknown
  1. Chemistry

    For the reaction CH3COOH- CH3COO + H+, which of the following statements is true? CH3COO- is an Arrhenius base. CH3COO- is a conjugate CH3COOH- is a Brønsted-Lowry acid.

    asked on May 12, 2017
  2. L.A

    both "the road not taken" and "o captain! my captain! are analogies. write a paragraph comparing the authors use of analogy. what is analogy? how does frost use analogy in his poem? how does whitman use analogy in his poem? why has each of these analogy

    asked on March 6, 2015
  3. Edtech

    what do you do about cyberbullying if the first adult you tell doesn't take you seriously A.Ignore it B.Tell the adult over and over again C.Tell the bully that you will tell his or her parents D.Tell another trusted adult

    asked on January 6, 2017
  4. chemisty

    Calculate the density of oxygen,O2 , under each of the following conditions: 1- STP 2- 1.00 atm and 35.0 C

    asked on October 8, 2008
  5. World History

    Which were characteristics of Alexander the Great's empire? Select all that apply. A. Alexandria, Egypt became a center for learning. B. Trade in Africa, Europe, and Asia declined. C. Greece became isolated from others ideas. D. The size of Greece's empire

    asked on September 25, 2018
  6. History

    Compare and contrast the treatment of different religions by rulers of the arab empire

    asked on October 31, 2018
  7. math

    1. what is the term for data that are grouped closely together? a. outlier b. liner c. positive d. clustering 2. what association would you expect if you was graphing height and weight ? a. position b. nonlinear c. negative d. none of these 3. what

    asked on March 14, 2016
  8. Geometry

    Write a two-column proof. Given: 7y=8x-14; y=6 Prove: x=7 I need help making a two-column proof with the statements and the reasons, please! Thank you! ( This is what I have so far) Statements | Reasons 1. 7y=8x-14;y=6 | Given 2. 7(6)=8x-14 | Substitution

    asked on September 7, 2016
  9. physics

    What are the first three harmonics of a note produced on a 31.0 cm long violin string if waves on this string have a speed of 277.0 m/s? Hz Hz Hz

    asked on March 12, 2011
  10. math

    1. What is the correct classification for the triangle shown below? A triangle has two angles measuring 68 degrees and 22 degrees. (1 point) acute, scalene acute, isosceles --- right, scalene obtuse, scalene 2. What is the value of x in the triangle? A

    asked on March 1, 2018
  11. Math

    Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir

    asked on March 27, 2013
  12. Physcial Science

    Interpreting Graphs: a. At 0oC, what is the state or states of the water in the beaker? b. At 80 s, what is the state or states of the water in the beaker? c. What did you observe about the temperature of the water inside the beaker when ice is still

    asked on November 30, 2015
  13. Science // Help

    How did planetsmals form planets? They broke apart into smaller chunks. They collided and stuck together They cooled and pulled ice together They began to rotate If anyone took the assessment please help x

    asked on November 9, 2017
  14. Physical Science ASAP

    1. true or false? a well-oiled machine has no friction. explain your answer. 2. True or false? Friction makes energy vanish. Explain your answer. 3. True of false? Electronic machines with no moving parts experience friction and get hot because electricity

    asked on October 23, 2013
  15. social studies

    In which way was mali different from axum a- mali was influenced by christianity b- mali became primarily a muslim culture c- mali relied on trade across the indian ocean d- mali’s wealth was evident in their construction of stelae

    asked on November 16, 2018
  16. math

    Find the height of a triangle with area = 110 ft2 and base = 10 ft. answers are a)5.5 ft b)22 ft c)550 ft d)11 ft

    asked on February 16, 2017
  17. Math

    A school has an equal number of boys and girls. You use a coin to simulate the first three students to arrive at school each day, where “heads” represents a boy and “tails” represents a girl. The table below shows a sample of 20 coin tosses T H T T

    asked on January 15, 2016
  18. Geometry; Check answers?

    For each graph, find (a)AB to the nearest tenth and (b)the coordinates of the midpoint of AB. 1. Coordinates are A(-9, -6) B(6,6) D=19.2 Midpoint=(1.5,-6) 2.A(-2,-2) B(8,-6) D=10.77 midpoint= (3,-4) 3. A(0,3) B(-2,-2) D=5.4 Midpoint= (-1,0.5)

    asked on August 20, 2013
  19. World History

    Which was the most important lasting impact of Alexander’s conquests? A. the spread of Greek ideas around the ancient world B. the creation of a new empire C. the division of the empire among his generals D. Macedonian domination of Greece

    asked on September 25, 2018
  20. Social Studies

    *** = what I think the answer is.. Please check my answers! 1. What was the result of the development of the Silk Road? Select all that apply. A. It brought new ideas such as Buddhism into China.*** B. It enabled the Shang to expand Chinese territory. C.

    asked on November 7, 2018
  21. L.A

    the following question asks about one or more selections from your literature textbook. You may use your textbook to answer the question. Select one question to respond to. Option 1: Write a short essay in which you examine the figurative language in

    asked on March 6, 2015
  22. social studies { somebody please help me please

    What countries were members of the central powers in WW1? A. Austria-Hungary, Germany, Turkey*** B. France, , Germany, Russia C. France, Great-Britain, Russia D. Great-Britain, United States, Turkey 2. What caused the U.S to enter WW1 after 3years of

    asked on April 5, 2016
  23. Complete the two-column proof

    Complete the two-column proof Given: triangle SVX is congruent to triangle UTX and Line SV is || to line TU Prove: VUTS is a parallelogram Image: It's a parallelogram, with one line going from corner S to corner U and a line going from corner T to corner

    asked on January 18, 2017
  24. Geometry

    The parallelogram has the angle measuers shown. Can you conclude that it is a rhombus, a rectangle, or a square? Explain. So I'm going to describe the image then I'll give what I think would be a correct answer to explain. (I'm really bad at this)

    asked on February 6, 2017
  25. Environmental Studies

    If you could drop Mount Everest (height: 8848 m) to the bottom of an ocean trench, would its summit reach the level of the ocean's abyssal plains?

    asked on February 1, 2017
  26. Chemistry

    What is the mass of 65.0mL of ethanol? the density of ethanol at room temperature=0.789g/mL

    asked on January 20, 2012
  27. Math

    28. Molli purchased 8 apples for $2.96. While looking at her receipt, Molli divided $2.96 by 8. Why might Molli perform this calculation? (1 point) in order to find the total number of apples purchased in order to find out how much she paid per apple in

    asked on October 5, 2016
  28. Chemistry

    Write the net ionic equation for the reaction that takes place between a solution of magnesium chloride and a solution of sodium hydroxide.

    asked on June 26, 2012
  29. Even more health...

    1. The health continuum is a representation of where your current health says falls--somewhere between illness and wellness. Identify the health status that might cause a decline in health and move you toward a state of illness. A. Enthusiasm for life B.

    asked on February 12, 2018
  30. World history; Check:P

    Before the 1500s, who and what were the final authorities with regard to most knowledge? The church and it's leaders, the bible, and the king/queen. If they could not come up with an answer to a question, they would say that God did it. 2.What was the

    asked on February 12, 2013
  31. Math

    The pair of polygons is similar. Find the value of x. A. 2 in. B. 12 in. C. 13 in. D. 20 in.

    asked on December 19, 2017
  32. Physical Science

    An astronaut in a spacesuit has a mass of 100 kilograms. What is the weight of this astronaut on the surface of the Moon where the strength of gravity is approximately 1/6 that of Earth?

    asked on October 15, 2013
  33. Social studies

    In this discussion, you will discuss Chief Joseph’s speech. Post a detailed response to the discussion prompt. Then comment on at least two other posts. To understand how you will be graded for this assignment, read the Discussion Guidelines and Rubric.

    asked on November 20, 2018
  34. physics

    A 0.2 kg conductor of length 0.8 m carries 2 ampere current to the right in a magnetic field. What is the magnitude and the direction of the magnetic field acting on the conductor if the net force on the rod is zero? (Assume that the rod is hung by two

    asked on June 12, 2011
  35. Geometry, Help

    Help? I'm stuck. For each graph, find (a)AB to the nearest tenth and (b)the coordinates of the midpoint of AB. 1. Coordinates are A(-9, -6) B(6,6) 2.A(-2,-2) B(8,-6) 3. A(0,3) B(-2,-2)

    asked on August 20, 2013
  36. Social Studies

    I really don't know......I've read my textbook over and over again but still don't know the answer........if someone could just give me a trusted website that i can read from or your answer in your own words. The question is down below!! Thank you The

    asked on March 1, 2016
  37. Physics

    A child of mass 40 kg stands beside a circular platform of mass 115 kg and radius 1.6 m spinning at 3.8 rad/s. Treat the platform as a disk. The child steps on the rim. a) What is the new angular speed; b) She then walks to the center and stay there. What

    asked on May 10, 2011
  38. Chemistry

    You are preparing 500 mL of a 0.300 M acetate buffer at pH 4.60 using only sodium acetate, 3.00 M HCl, 3.00 M NaOH, and water. Calculate the quantities needed for each of the following steps in the buffer preparation. 1. Add sodium acetate to ~400 mL of

    asked on February 28, 2012
  39. Social Studies

    Which physical feature covers most of Saudi Arabia? the Empty Quarter the Fertile Crescent the Zagros Mountains the Persian Gulf

    asked on February 25, 2015
  40. Health and Physical Education

    1. The passing traits from parents to their children is a biological process called ______. A. Environment B. Gender C. Values D. Heredity **** 2. A ______________ is something a person works hard to accomplish. A. Consequence B. Decision C. Goal **** D.

    asked on February 12, 2018
  41. E.L.A

    In which sentence does the prepositional phrase act as an adverb? A)Last evening, Anne suffered from a headache. B)The door to the attic was left open. **** C)Mr. Frank discussed the problem of noise in the annex. D)He bought a drink for Mr. Dussel. In

    asked on March 21, 2016
  42. math help connections acadamy

    What is the outlier of the data set? 24,18,26,20,18,24,4,24 A.4 B.20 C.24 D.23 PLEASE HELP

    asked on September 13, 2018
  43. Geometry

    Solve for X, given BD=3x+5 and AE=4x+20 B is the midpoint of segment AC and D is the midpoint of segment CE. Solve for x, given BD=3x+5 and AE=4x+20

    asked on December 7, 2016
  44. Math

    What is a reasonable distance between two cities? 200km 200m ** 200cm 200mm

    asked on February 23, 2017
  45. Social Studies

    Which of the following was the Catholic Church's response to the development of protestantism? A. It lauched the Reformation. B. It removed the pope as head of the church. C. Its leaders began the Counter-Reformation. D. It eliminated the inquisition. I

    asked on January 29, 2019
  46. physics

    Assuming that the human body has a 1.2-cm-thick layer of skin tissue and a surface area of 1.5m2 , estimate the rate at which heat is conducted from inside the body to the surface if the skin temperature is 34 ∘C. (Assume a normal body temperature of 37

    asked on January 28, 2015
  47. chemistry

    Imagine that you have a 5.50 L gas tank and a 3.50 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 105 atm , to what

    asked on October 8, 2008
  48. World history; Check:P

    1.What was the significance of the Twelve Tables? The Twelve Tables were significant because they were an early example of written law displayed publicly for all who could read them. They were later used as the laws for Rome. "The Twelve Tables established

    asked on February 12, 2013
  49. Health Health Health

    1. Which one of the activities would most likely be included in Healthy People 2020 goals? (1 point) A. Assist families in getting low-cost housing within the city that is known for high pollution levels. **** B. Help doctors to move their offices out of a

    asked on February 12, 2018
  50. Spanish B

    What is one of the main factors attributed to Panama's booming economy? A)The control of Los Estados Unidos over the Panama Canal. B)Panama's sole control over the Panama Canal. C)France's abandonment of the Panama Canal project. D)Joint control of the

    asked on May 17, 2016
  51. physics

    Two point masses are located a distance, D, apart. The gravitational force of attraction between them can be quadrupled by changing the distance to

    asked on November 7, 2010
  52. math

    1. If the legs of a right triangle have length 6 inches and 8 inches, what is the length of the hypotenuse in inches? (1 point) 11 13 10 16

    asked on November 12, 2015
  53. Science

    A scientist from the United States conducts an experiment using miles per hour to measure speed. Why might this be confusing for scientists in other countries? A) Scientists in other countries don't usually perform experiments involving speed. B)

    asked on February 6, 2018
  54. Chemistry;HELP

    Volume Problems Answer the following questions. Scan and upload your questions and answers to your student section labeled Volume Volume Problems. Identify the following chemical equations by type. 1. If an electric discharge produces 500 cm3 of ozone

    asked on August 21, 2013
  55. Math

    What is a simplified form of the expression sec^2x-1/sin x sec x ? a)cot x b)csc x c)tan x d)sec x tan x Please help me :(

    asked on May 27, 2018
  56. Geography

    How were ideas as well as goods spread along the Silk Road? A-books were sold along with other goods B-Libraries were established along the Silk Road C-New ideas were needed to make travel possible D-Traders shared ideas as they traveled

    asked on February 11, 2019
  57. math

    "A 12-pack of cinnamon scented pencils sells for $3.00 at a school booster club sale. What is the sales tax rate if the total cost of the pencils is $3.21?" what is the answer and how do you show the work?

    asked on January 9, 2012
  58. Physics

    A 2.2 m-long string is fixed at both ends and tightened until the wave speed is 50 m/s.What is the frequency of the standing wave shown in the figure? picture has 6 waves

    asked on November 8, 2009
  59. social studies

    By what means did Zhou rulers keep control over all the different regions of their kingdom? A. by keeping a strong army ready to put down any rebellion B. by treating the people with kindness and respect C. by starting a civil service based on the ideas of

    asked on November 3, 2018
  60. Science (Graphing) ASAP

    Maria walks at a constant speed of 2 m/s for 8 seconds. a. Draw a speed vs. time graph for Maria’s motion. b. How far does she walk? I wanted to know what numbers would be on the time (x vaule) I know the Y is the position (2,4,6,8,10,12 etc)

    asked on September 28, 2013
  61. World history; Check:P Added sentences.

    Write a one paragraph essay on how developments in technology influenced the rise and decline of the Assyrian Empire. The Assyrians were the first to use iron in their weapon works. They used it in spears, swords, shields and armor. They had the most

    asked on March 1, 2013
  62. Physics

    A 0.35 m2 coil with 50 turns rotates at 5 radians per sec2 in a magnetic field of 0.6 Tesla. What is the value of the rms current in the coil if the coil has the resistance of 3.3 Ù? Can you also show me how you got the answer? Thanks so much

    asked on January 29, 2013
  63. Social studies

    Which is an effect of deforestation A soil erosion B air pollution C water pollution D earthquakes

    asked on November 27, 2018
  64. Astronomy

    What is the wavelength of a radio photon from an "AM" radio station that broadcasts at 1160 kilohertz?What is its energy in joules

    asked on July 15, 2018
  65. Social Studies

    The louisiana purchase most likely contributed to? A.ending the civil war B.U.s victory in the AmericAN revolution c.The development of manifest destiny D.the onset of industry revolution PLEASE HELP this question is from connections academy.

    asked on March 24, 2016
  66. Unknown

    Carl is asked to draw a triangle with the following specifications: -all sides have whole number lengths in centimeters -the sum of the lengths of the two shortest sides equals 9 centimeters -when the side lengths are placed in order from least to

    asked on April 7, 2016
  67. Math

    A class went on a field trip to see a play. Adult tickets cost $18 each and student tickets cost $12 each. There were 10 more students than adults that went to the play. If the trip cost $240 in all, how many adults and students went to see the play? Write

    asked on February 29, 2016
  68. Geometry

    The midpoint of uv is (5 -11). the coordinates of one endpoint are u(3 5) find the coordinates of endpoint v. I really need help asap! i have to put this in today.. Please and thank you!

    asked on October 12, 2016
  69. Physics

    A 284 kg crate is pulled along a level surface by an engine. The coefficient of kinetic friction between the crate and the surface is 0.513. How much power must the engine deliver to move the crate at a constant speed of 7.2 m/s?

    asked on December 2, 2014
  70. math

    find the missing number in each sequence... 30,_____,19, 13 1/2

    asked on October 24, 2016
  71. social studies

    need help now ms sue Why did the ancient Chinese make loud noises at festivals and during holiday celebrations? A. to show loyalty to the emperor B. to celebrate their blessings C. to awaken the spirits of their ancestors D. to chase away evil spirits

    asked on November 3, 2018
  72. Physics

    A car, in overtaking trailer, uniformly accelerated its speed from 40 kph to 90 kph in 8 seconds. Calculate the distance traveled during the period of acceleration.

    asked on August 29, 2016
  73. math

    tan theta= 15/8 and pi< theta

    asked on November 20, 2011
  74. physics

    The U.S. five-cent coin, the nickel, has a mass of 5.1 g, a volume of 0.719 cm3, and a total surface area of 8.54 cm2. Assuming that a nickel is an ideal radiator, how much radiant energy per second comes from the nickel, if it is at 24∘C?

    asked on January 28, 2015
  75. 7th grade Math

    Mrs.Jackson earned a $500 bonus for signing a one-year contract to work as a nurse. Her salary is $22 per hour. If her first week's check including the bonus is 1,204, how many hours did mrs.jackson work

    asked on November 9, 2017
  76. Chemistry

    Complete and balance the molecular equation, including phases, for the reaction of aqueous copper(II) chloride, CuCl2, and aqueous potassium phosphate, K3PO4. Balance the net ionic equation, including phases, for this reaction.

    asked on April 7, 2013
  77. Physic

    A ball is thrown horizontally from a cliff at a speed of 15 m/s and strikes the ground 45 meters from the base of the cliff. How high was the cliff (rounded to the nearest meter)

    asked on February 27, 2013
  78. Geometry

    Full Question: The coordinates for a rhombus are given (2a, 0), (0, 2b), (-2a, 0), (0,-2b). Write a plan to prove that the midpoints of the sides of a rhombus determine a rectangle using coordinate geometry. Be sure to include the formulas. Image

    asked on February 6, 2017
  79. Language Arts

    I have a Language Arts review crossword, and one hint is "Scrooge and Tiny Tim in A Christmas Carol". The word is 10 letters long, and has an E as the eighth letter. Thanks!

    asked on May 12, 2016
  80. social stuides

    What was the purpose of Jim crow laws in south Carolina? a. To stop African Americans from voting ** b. To stop poor whites from voting c. To take land for African Americans d. To help African Americans gain jobs What was the purpose of the freedmen’s

    asked on March 22, 2016
  81. Physical Science ASAP

    A child weighing 200 newtons is sitting in the center of a swing. the swing is supported evenly by two ropes, one on each side. what is the tension force in one of the ropes?

    asked on October 23, 2013
  82. Math

    Which are the solutions to 8cos^2 theta-3cos theta=0, 0 degrees is less than or equal to theta which is less than or equal to 180 degrees ? Select all that apply a)0.0 degrees b)22.0 degrees c)52.0 degrees** d)68.0 degrees e)90.0 degrees** I’m pretty

    asked on May 27, 2018
  83. Social Studies

    How does the structure of the society of the Han dynasty reflect Confucian values?

    asked on November 7, 2018
  84. chemistry

    consider the reaction 2HgCl2 + C2O4-2 ---> 2Cl2-1 + 2CO2 + Hg2Cl2 The initial rate of this reaction was determined for several concentrations of HgCl2 and C2O4-2 and the following rate data was obtained. TRIAL (1) [HgCl2](M)= .105 [C2O4-2](M)= .15 RATE=

    asked on March 25, 2007
  85. Math grade 10

    Give quadrilateral EFGH ,with coordinates E(1,4), F(1,2), G(5,0) and H(3,4); verify that EG bisects FH

    asked on December 4, 2016
  86. physics help!

    An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal length of the

    asked on May 12, 2011
  87. physics plzz

    In a game against the White Sox, baseball pitcher Nolan Ryan threw a pitch measured at 40.4 m/s. If it was 18.7 m from Nolan's position on the pitcher's mound to home plate, how long did it take the ball to get to the batter waiting at home plate? Treat

    asked on September 10, 2011
  88. Music

    What could be done to minimize the commercialism in today’s music scene?

    asked on November 14, 2013
  89. math

    Jan says if you double each of the dimensions of a rectangular box, it will take twice as much wrapping paper to wrap it. How do you respond?

    asked on October 28, 2011
  90. Physics

    A 0.35 m2 coil with 50 turns rotates at 5 radians per sec2 in a magnetic field of 0.6 Tesla. What is the value of the rms current in the coil if the coil has the resistance of 3.3 Ù? Have no idea how to do this...

    asked on January 27, 2013
  91. chemistry

    Imagine that you have a 5.00L gas tank and a 3.50L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 145atm , to what

    asked on November 18, 2011
  92. Math

    A right pyramid has a square base of sides 10cm each and a slant height of 15cm . Draw a net of the pyramid and label its dimensions

    asked on November 7, 2018
  93. World History ASAP

    What people created the first mesopotamian civilization? ANSWER: Sumerians What did they contribute to early civilization? I don't get this answer ://

    asked on September 7, 2013
  94. E.L.A

    Which expression best represents the views a fatalist would have? a. “whatever will be , will be”*** b. “the best is yet to come” c. “we are still masters of our fate” d. “you don’t know what you have until it’s gone” In which of these

    asked on March 21, 2016
  95. HELP! Geometry

    Part I 1. Why is the word coplanar included in the definition for parallel lines? 2. Explain why you think the angle pairs formed by two lines and a transversal are related. Why might it be helpful to identify them as angles that go together instead of

    asked on September 6, 2013
  96. math

    Q: Why didn't the quarter roll down the hill with the nickel?

    asked on May 28, 2019
  97. Science

    Determine the frequency of a microwave 6.0 cm in length.( A microwave is an electromagnetic wave.It travels through space at a speed of 3.0 x 10 ^8 m/s)

    asked on October 31, 2013
  98. Language Arts

    Which of the following sentences contains a dependent clause? A. My mother, who never wastes anything, rinsed and saved the take-out boxes. B. We were running late, and we had to skip stopping by the post office. C. I had never been to New York before this

    asked on March 21, 2019
  99. Math

    Which is Q = 200P/L solved for P? A. P = QL/200 B. P = 200L/Q C. P = 200QL D. P = 200/QL I think it's A, am I correct?

    asked on March 13, 2019
  100. Language Arts

    Do you know where I can find chapter by chapter view of a book? Is a plot the same as a summary of a short story?

    asked on July 8, 2013


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