Popular questions and responses by Annie
  1. English

    Which sentences are correct? 1) Are you able to assist me on this matter? I would appreciate your assistance on this matter. OR 2) Are you able to assist me in this matter? I would appreciate your assistance in this matter. Thanks.

    asked on December 22, 2010
  2. Chemistry

    How do I prepare 100mL of 10g/L HCl from concentrated HCl(37%HCl, density 1.19g/mL) Is it 2.28mL of conc HCl dilute to 100mL with water? Please show the calculation steps.

    asked on February 16, 2012
  3. Chemistry

    How do you draw the lewis strusture for Cyanogen(C2N2)

    asked on May 12, 2011
  4. Geography

    Which adaptions did early humans make during the last ice age in order to survive varied environments? Select all that apply. A. created religions to offer sacrifices to gods B. made shelters out of available materials C. worked in larger networks of

    asked on October 10, 2018
  5. English

    Choose the function of the italicized infinitive phrase. 1.May I have permission to use the car tonight? 2.He went to Europe to study architecture. 3.I want to go with you to the store. 4.Can you give me a place to put my things? 5.To help you is my

    asked on November 4, 2013
  6. computer

    1. Default tab stops are set in Word every _______ inch. A. 1 B. 1/2 C. 1/4 D. 3/4 2. Once you've saved a block of text or graphics for easy insertion in other documents, you'll see it in the _______ gallery. A. Photo Space B. ClipArt C. Multimedia Online

    asked on August 10, 2015
  7. Maths

    kuldeep had a sum of money. He saved 1/4 of it. He spent 4/9 of the remaining on suitcase. a) What fraction of his money sent on suitcase? b) What fraction of his money was left?

    asked on May 2, 2017
  8. English

    What is the gerund phrase and noun function of the gerund in these sentences: 1.Brett earns his income by repairing cars. 2.I enjoy playing the piano. 3.Her favorite pastime is entertaining friends. 4.She is successful in mimicking others' voices. 5.He

    asked on November 4, 2013
  9. history

    Which identifies Napoleon’s impact on Europe? The invasion of Britain ended imperialism. Portugal ceased to exist as a country. The conquest of Austria created the Ottoman Empire. Many Germanic territories were united.

    asked on August 5, 2020
  10. Algebra

    The value of a new car decreases by 35% in the first year. If a car costs $9,800 when new, how much less would it be worth at the end of the first year?

    asked on February 7, 2017
  11. biology

    Which of the following facts was unknown to Gregor Mendel? organisms have two alleles for each of their genes alleles for genes are found on chromosomes heterozygous genes have two different alleles during reproduction, alleles separate i think D?

    asked on August 6, 2020
  12. math

    Given: ABCD is a rhombus, AB = 6, and m∠A=60° Find: The height.

    asked on April 9, 2017
  13. math

    The bases on a baseball diamond are 90 feet apart. How far is it from home plate to second base? Please explain

    asked on March 12, 2013
  14. Chemistry

    1) Prepare 100mL of 10%w/w HCl from 37%concentrated HCl(density of 37%HCl =1.19g/ml) 2) Prepare 100mL of 10%w/v HCl from 37% concentrated HCl(density of 37%HCl=1.19g/ml) Can you please show the calculation steps for 1) & 2)? Is 10%w/v HCl the same as

    asked on March 12, 2012
  15. Social Studies

    Which of the following was the provision in the Treaty of Paris in 1763? a. All French land in North America was to be given to England b. All French land in North America was to be given to Spain c. All French lands west of the Mississippi and Louisiana

    asked on September 8, 2016
  16. physics

    The drawing shows an extreme skier at bottom of a ski jump. At this point the track is circular with a radius r. Two forces act on the skier, her weight mg and the normal force FN. Which relation describes how the net force acting on her is related to her

    asked on February 26, 2011
  17. History

    Which identify similarities between Pilgrims and Puritans? Select all that apply. Both groups challenged Calvinists over the issue of predestination. Both groups migrated to the New World to be able to practice their religion freely. Both were Protestant

    asked on February 26, 2020
  18. MATH

    A study is conducted to compare the average square footage of homes in different communities. If squares are drawn so that their areas are in proportion to the average square footage, is the resulting graph misleading? Why or why not?

    asked on April 9, 2019
  19. Math

    A set of n = 15 pairs of X and Y scores has SSX = 10, SSY = 40, and SP = 30. What is the slope for the regression equation for predicting Y from X?​ 10/30 10/40 40/10 30/10

    asked on December 15, 2017
  20. math

    Of 45 students 30 play badminton and 26 play tennis. Each student play either badminton or tennis,determine how many students play:(a)badminton only (b) tennis only

    asked on September 30, 2016
  21. Chemistry

    How to prepare 100mL of 3% w/w Hydrogen Peroxide from 30% w/w Hydrogen Peroxide?Specific Gravity of 30%w/w Hydrogen Peroxide is 1.11g/mL. Can you please show the calculation steps? Thanks.

    asked on February 18, 2012
  22. physics

    1. A boy drags a wooden crate with a mass of 20 kg, a distance of 12 m, across a rough level floor at a constant speed of 1.50 m/s by pulling on the rope tied to the crate with a force of 50 N. The rope makes an angle of 25¡ã with the horizontal. a.What

    asked on October 24, 2011
  23. Psychological

    Which of the following statements regarding the nature of stress is true? A. Accumulating hassles may well lead to a sudden onset of PTSD. B. Psychophysiological disorders are primarily mental disorders. C. Continued exposure to stress is associated with

    asked on May 30, 2016
  24. Chemistry

    I found the following procedure to prepare starch indicator solution on a website:- To prepare starch indicator solution, add 1 gram of starch (either corn or potato) into 10 mL of distilled water, shake well, and pour into 100 mL of boiling, distilled

    asked on October 6, 2010
  25. math

    A rhombus ABCD has AB = 10 and m∠A = 60°. Find the lengths of the diagonals of ABCD.

    asked on May 15, 2017
  26. math

    The deck of a swimming pool had the same width all the way around. The perimeter of the pool is 50m. The outside perimeter of the deck is 74m. What is the width of the deck?

    asked on May 12, 2014
  27. Spanish

    Please help me work this out with the future verb tense. Completa el párrafo con el futuro de los verbos de la lista. No es necesario usar todos los verbos. asustarse casarse conseguir escribir estar hacerse olvidar ser tener terminar Nunca (1) ____lo que

    asked on February 13, 2018
  28. Maths

    sarika prepared squash from tomato,carrot,apple juices. 1/3 of the squash was tomato juice and 2/3 of the remainder was carrot juice. 315 ml of squash vs carrot juice. what volume of the squash was apple juice?

    asked on May 3, 2017
  29. chemistry

    Calculate whether or not a precipitate will form if 1.40 mL of 0.62 M NH3 are added to 4.4 L of 1.0 10-3 M FeSO4.

    asked on March 19, 2013
  30. Physics

    A 0.03-kg bullet is fired vertically at 200m/s into a 0.15-kg baseball that is initially at rest. The bullet lodges in the baseball and, after the collision, the baseball/bullet rise to a height of 37m. (a). What was the speed of the baseball/bullet right

    asked on February 14, 2013
  31. Physics

    The drawing shows a jet engine suspended beneath the wing of an airplane. The weight W of the engine is 12000 N and acts as shown in the drawing. In flight the engine produces a thrust T of 54200 N that is parallel to the ground. The rotational axis in the

    asked on October 21, 2012
  32. science(physics)

    Why a minibus is more likely to topple over when the roof rack is heavily loaded than when the roof rack is empty?

    asked on January 17, 2017
  33. Chemistry

    Please write down the redox reactions (using the half-reaction method!) a)Cl2 from OCl- and Cl- in acidic solution b)Br2 from BrO3- and Br- in acidic solution -You don't have to do both, but could you help me step up the half reactions especially for OCl-

    asked on October 28, 2016
  34. math

    what are the coordinates of the shadow cast on the xy plane by a small object placed at the point (10,7,20) assuming that the sun's rays are parallel to the vector (5,3,-2)

    asked on January 31, 2015
  35. Calc and Vectors

    The owner of an orange grove estimates that 150 orange trees per acre will each yield on average 800 oranges per year. For each additional tree planted per acre the number of oranges produced by each tree decreases by 10 per year. How many trees should be

    asked on January 22, 2014
  36. math

    A simple fractal tree Grows in stages. A each new stage, two new line segments branch out from each segment at the top of the tree. The first five stages are shown. How many line segments need to be drawn to create stage 20? Stage 1- 1 Stage 2 - 3 Stage 3

    asked on January 10, 2012
  37. Physics-Please check

    Electricity may be generated by rotating a loop of wire between the poles of a magnet. The induced current is greates when: a.Plane of loop makes an angle 45 degrees with the magnetic field b.The plane of the loop is parallel to the magnetic field c.The

    asked on May 2, 2011
  38. Chemistry

    How do you calculate the volume of titrant needed to reach the endpoint of a reaction when you are given the mls and molarity of a strong base and only the molarity of a weak acid?

    asked on April 10, 2009
  39. math

    what is a boldface digit and how do you find its value

    asked on October 30, 2008
  40. Math

    For some k>0 the lines 50x+ky=1240 and ky=8x+544 intersect at right angles at the point (m,n).find m+n.

    asked on April 27, 2018
  41. English

    Read the following poem and then respond to the question below: “I’m Nobody! Who are you?” By Emily Dickinson I’m Nobody! Who are you? Are you – Nobody – too? Then there’s a pair of us! Don’t tell! they’d advertise – you know! How

    asked on June 7, 2016
  42. science

    When you do work to lift an object, what form of energy does the object gain

    asked on June 5, 2014
  43. Chemistry

    Write a balanced equation to describe the following reactions: a) C14H30 is cracked to produce ethene, hydrogen and one other compound b) C16H34 is cracked to produce ethene and propene in a 2:1 ratio and only one other compound Thanks:)

    asked on February 1, 2014
  44. math

    Jamal got a job working on a assembly line in a toy factory, on the 20th day of work, he assembled 137 toys, he noticed that since he started , every day he assembed 3 more toys then the day before , how many toys did jamal assemble all together during his

    asked on January 3, 2012
  45. Physics

    A 25 gram piece of metal is sitting in a beaker of boiling water. The metal is taken out of the beaker and quickly placed in a calorimeter that contains 85 mL of water at 25.0 degree Celcius. After the metal released all of its heat the temperature of the

    asked on June 14, 2020
  46. physics 11

    An arrow is shot horizontally towards a target 20 m away. In traveling the first 5 m horizontally, the arrow falls 0.2 m. In traveling the next 5 m horizontally, what will the arrow additionally fall?

    asked on May 13, 2018
  47. Chemistry

    Balance the following half-reaction under basic conditions. NO3^− → NH3

    asked on April 9, 2018
  48. world history

    In Aztec society, women were (Choose all that are correct).

    asked on October 12, 2017
  49. math

    What is the area of a quadrilateral ABCD, if AB = 5 cm, BC = 13 cm, CD = 9 cm, DA = 15 cm, AC = 12 cm?

    asked on May 15, 2017
  50. math

    A diagonal of a parallelogram forms 25° and 35° angles with the sides of a parallelogram. Find the angles of the parallelogram.

    asked on February 20, 2017
  51. chemistry

    Write a balanced equation for the reaction of liquid bromine with chlorine gas.

    asked on November 29, 2016
  52. physics

    An insulated beaker contains 300g of water initially at 30 degree celsius. water at 100 degree celsius is added until the temperature of mixture reaches 50 degree celsius . the specific heat capacity of water is 4.2J/(kg degree celsius). how much water is

    asked on May 22, 2016
  53. chemistry

    LiF, BeF2, PCl3, CCl4, F2 1. which is likely to conduct electricity when aqueous: 2. which is most likely to be a gas in room temp. 3. which is likely to be very soluble in water 4. which is a polar molecule? may have more than one answer

    asked on March 19, 2015
  54. Math

    What power of 7 is 40 353 607?

    asked on July 14, 2014
  55. chemistry

    O2 effuses at a rate that is _____ times that of Xe under the same conditions. rate 02/rate x2 = ?

    asked on June 21, 2013
  56. statistics

    A particular report included the following table classifying 711 fatal bicycle accidents according to time of day the accident occurred. Time of Day Number of Accidents Midnight to 3 a.m. 38 3 a.m. to 6 a.m. 29 6 a.m. to 9 a.m. 64 9 a.m. to Noon 78 Noon to

    asked on June 28, 2012
  57. math

    Solve simultaneously: x -2y = 4, 2x + 5y = 17

    asked on August 31, 2019
  58. Math

    A repeated-measures research study comparing two treatments with a set of 10 scores in each treatment will produce a t statistic with df = 19. True or False

    asked on December 15, 2017
  59. Math

    A set of X and Y scores has SSX = 20, SSY = 10, and SP = 40. What is the slope for the regression equation?​ 4.0 2.0 0.25 0.50

    asked on December 15, 2017
  60. Algebra 2

    Amelia is documenting the height of sunflower plants each week. She has determined the function to be f(x) = 3x + 3, where x represents time and f(x) represents the height of the plant. Which of the following options describes the restrictions to the

    asked on March 4, 2017
  61. Algebra

    A chemist mixed a 70% alcohol solution with a 30% alcohol solution to make a 45% alcohol solution. How many liters of each were used to make 120 L of a 45% solution? I tried solving this with elimination method and made two separate equations. For

    asked on May 20, 2016
  62. Math Help- Areas!!!!

    For problems 4-5, find the surface area of the cylinder in terms of pi. (cylinder is 18 cm high and 14 cm wide) A. 350 pi cm2 B. 896 pi cm2 C. 602 cm2 D. 644 pi cm2***? (cylinder is 20 inches high and 18 inches wide) A. 396 pi in2 B. 522 pi in2 C. 360 pi

    asked on May 19, 2016
  63. Chemistry

    How many electrons can be described by the quantum numbers n = 2, l = 1, ml = -1? a.) 2 b.) 14 c.) 6 d.) 10 e.) 0 I thought it was 6 but here's my reasoning n = 2 energy levels l = 1 (p orbital) ml = -1 (I don't think this is relevant to the question?)

    asked on November 14, 2014
  64. English

    What is a subordinate clause?

    asked on November 4, 2013
  65. chemistry

    A 8.90-L container holds a mixture of two gases at 45 C. The partial pressures of gas A and gas B, respectively, are .294 atm and .860 atm. If .100 mol of a third gas is added with no change in volume or temperature, what will the total pressure become?

    asked on June 21, 2013
  66. science

    Calculate the de Broglie wavelength of a 0.44 kg ball moving with a constant velocity of 26 m/s (about 60 mi/h).

    asked on April 2, 2013
  67. Physics

    A 50-kg satellite circles the Earth in an orbit with a period of 120 min. What minimum energy is required to change the orbit to another circular orbit with a period of 180 min? (Earth: radius = 6.4  106 m, mass = 6.0  1024 kg)

    asked on November 18, 2012
  68. Math

    What is 0.5 to the tenth power, as a fraction? a.k.a. 0.0009765625 as a fraction

    asked on May 2, 2012
  69. chemistry

    what is the volume at STP of a sample of CO2 that has a volume of 75.0 ML at 30c and 680 mm Hg

    asked on April 26, 2012
  70. Chemistry

    Zinc and sulfur react to form zinc sulfide according to the equation Zn+S=>ZnS a) How many grams of ZnS will be formed? b) How many grams of the excess reactant will remain after the reaction is over?

    asked on March 8, 2012
  71. space

    What is the force of gravity at 220 miles above Earth's surface? Calculate how much of a g force the astronauts are actually experiencing. The solution for this math problem is a percentage. You can calculate it using the Algebraic equation: gr = R2/r2 x g

    asked on January 21, 2010
  72. Chemistry

    An ion exchange process may be used to remove ions causing hardness of water. Outline how this works. 1. Ca2+ and Mg2+ are the ions that cause the hardness of water, one example of softening the water is to react the hard water with NaCO3 (Sodium

    asked on May 30, 2009
  73. physics imperfect spring

    The force required to compress an imperfect horizontal spring an amount x is given by F= 150x+12x^3, where x is in meters and F in newtons. If the spring is compressed 2.1 m, what speed will it give to a 4.0 kg ball held against it and then released?

    asked on May 21, 2009
  74. English

    A student is writing an essay on the presidency of Andrew Jackson. Which sentence would function as a coherent thesis statement? A. Andrew Jackson was the seventh president of the United States and the first who did not come from the aristocracy. B. Andrew

    asked on April 6, 2020
  75. english

    Based on the information in the passage, what statement extends the idea that people only appreciate things that can be seen? A. Meteor showers are not interesting; there are too many other visible things in space to study. B. If something is not always

    asked on April 6, 2020
  76. english

    Why is it important to find thorough evidence for inferred meaning in an informational text? to make sure that the evidence directly relates to the inference to check that the author did not include the explicit meaning to ensure that all parts of the

    asked on April 1, 2020
  77. Math

    Find the value of x 60° 80° 128° and x° This is really confusing me please help :/ I read the lesson like 4 times and I just don’t understand it

    asked on March 4, 2019
  78. Math

    Need this answered today also explain the answers please Julia measured the high temperature in her town for one week. Using the chart below, find the mean absolute deviation for the high temperatures. Round your answer to the nearest tenth. Be sure to

    asked on March 13, 2018
  79. Math

    The distance between the Y value in the data and the Y value predicted from the regression equation is known as the residual. What is the value for the sum of the squared residuals?​ SSresidual = r2(SSX) SSresidual = (1 – r2)(SSX) SSresidual = r2(SSY)

    asked on December 15, 2017
  80. Chemistry

    Identify the longest, shortest, strongest, and weakest bonds? A. H3C-C---C-H B. (H3C-H)>----

    asked on November 5, 2017
  81. Rational number

    7/11, -8/6, -6/8, 9/4, 27/25 arrange the rational number in ascending order

    asked on May 3, 2017
  82. Chemistry

    Consider the reaction: 2Mg + O2 ------> 2MgO The reaction is at equilibrium, the concentration of MgO is found to be 0.5. What is the concentration of Mg and O2? ------------------------------------------------------- Keq is not given... using the ICE

    asked on June 29, 2015
  83. Poetry

    Can anyone tell me how rhyme scheme helps build the theme of "A Barred Owl"?

    asked on February 2, 2015
  84. English

    In “Summer,” the line “Bugs buzzin from cousin to cousin” illustrates which sound device? A. alliteration B. assonance C. onomatopoeia D. all of the above I believe it is D, Do you agree?

    asked on November 28, 2014
  85. Science

    a)How much work is required to lift a 35-kg object from the ground 3.0 m into the air? b) How much gravitational potential energy did this object gain?

    asked on June 6, 2014
  86. Math

    At a concession stand, popcorn costs $1.10 and nachos cost $2.35. One day, the receipts for a total of 172 popcorn and nachos were $294.20. How many popcorns were sold. Please show work! I don't understand

    asked on February 6, 2013
  87. english

    In the book Roll of Thunder, Hear my Cry, what is the double meaning of Mr. Granger's words when he says he ain't gonna stand for no hanging on his place, and if y'all touch one hair on that boy's head, he's gonna hold every man responsible"?

    asked on April 26, 2012
  88. eng lit

    please proof read my short story please and make some correction Love-Hate story “Happy birthday Khushi”, her family said as they came to her room at midnight. “Thank you, Mom, Dad and my lovely sister”, Khushi said with a huge smile. Khushi laid

    asked on March 9, 2012
  89. statistics

    f someone scored two Standard Deviations above the Mean on a standardized test where the Mean = 100 and the Standard Deviation = 15, then that person’s numerical score would be…? A. 125 B. 130 C. 160 D. 90th Percentile

    asked on February 20, 2012
  90. math

    the 10th term of an arithmetic series is 34, and the sum of the first 20 terms is 710, determine the 25th term.

    asked on January 3, 2012
  91. physical science

    pour a liter of water at 40 c into a liter of water at 20 and the final temperature of the two becomes about____________________c

    asked on December 27, 2011
  92. Chemistry

    How would you usually prepare starch indicator solution for iodine titrations? Can the solution be stored for a few months in the fridge? I noticed that sometimes the starch indicator solution in the fridge has turned cloudy, in which case we should

    asked on September 25, 2010
  93. ecology

    Why does the rainy season in the tropical dry forest and tropical savanna biomes come during the warmer months?

    asked on August 9, 2010
  94. English

    “On Twitter, Fake News Has Greater Allure Than Truth Does” suggests that fake news stories reach a larger audience than real news stories. Which statements from the article serve as a sound basis for this analysis? Select all that apply. On Twitter,

    asked on March 31, 2020
  95. English

    In which sentences is the word plausible used correctly? Select all that apply. Guillermo could not come up with a plausible reason for canceling his dinner date. Amy was upset by the plausible construction noise outside her window. Reasoning becomes

    asked on March 31, 2020
  96. Algebra

    A sine function has the following key features: Period = 4 Amplitude = 4 Midline: y = 1 y-intercept: (0, 1) The function is not a reflection of its parent function over the x-axis. Use the Desmos graph tool to graph the function. The first point must be on

    asked on January 29, 2020
  97. Math

    Evaluate: |4 - 8(3 - 12)| - |5 - 11| =

    asked on March 8, 2018
  98. world history

    What did young men learn in Aztec public schools? Select all that apply.

    asked on October 12, 2017
  99. Chemistry - half life

    What is the half-life (in h) for the decomposition of O3 when the concentration of O3 is 2.37 ✕ 10−6 M? The rate constant for this second-order reaction is 50.4 L/mol/h.

    asked on September 14, 2017
  100. Trigonometry and Right Triangles!

    The length of the hypotenuse of a 30 60 90 triangle is 16. What is the perimeter? I'm just learning about this. Can someone explain?

    asked on May 8, 2016


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