Popular questions and responses by annie
  1. 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
  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. 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
  4. 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
  5. Chemistry

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

    asked on May 12, 2011
  6. 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
  7. 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
  8. math

    It takes a ship 3 hours to cover 72 km with the current and 4 hours against the current. Find the speed of the ship in still water and the speed of the current.

    asked on March 19, 2017
  9. 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
  10. math

    A motorboat covers the distance from one pier to the other pier in 4 hours and the way back in 5 hours. What is the speed of the boat in still water, if it covers 70 km with the current in 3.5 hours?

    asked on March 17, 2017
  11. 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
  12. 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
  13. 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
  14. 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
  15. chemistry

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

    asked on November 29, 2016
  16. 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
  17. 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
  18. 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
  19. 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
  20. Chemistry

    A 30.0-ml sample of 0.165 M propanoic acid is titrated with 0.300 M KOH. What is the pH at 5 ml of added base, at 10 ml of added base?

    asked on March 19, 2013
  21. model multiplication

    jillian's garden, there are 3 rows of carrots, 2 rows of beans and 1 row of peas. there are 8 plants in each row. how many plants are there in all?

    asked on October 3, 2014
  22. Chemistry

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

    asked on November 5, 2017
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. Math

    Write each expression using a single exponent 1. x^9/x^2 a)x^11 b)x^7

    asked on May 30, 2016
  30. 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
  31. 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
  32. math

    Start from 110 feet away, a person on a bicycle rides towards a checkpoint and then passes it. The rider is travelling at a constant rate of 30 feet per second. The distance between the bicycle and he checkpoint is given by the equation d = |110 - 30t|. At

    asked on October 23, 2014
  33. History

    what idea emerged as a result of the protestant reformation is also reflected in modern democratic governments a. self-government* b. religious tolerance c. humanism d.censorship

    asked on October 5, 2018
  34. 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
  35. 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
  36. 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
  37. social studies

    what did the actions of the border ruffians demonstrate about the slavery debate? select all that apply a. that opposing sides would resort to violence b. that abolitionists would triumph by using the press c. that settlers would follow the laws d. that

    asked on March 16, 2018
  38. 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
  39. world history

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

    asked on October 12, 2017
  40. math

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

    asked on October 30, 2008
  41. 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
  42. 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
  43. Math

    The term correlation refers to a statistical technique that is used to ____.​ measure and describe the linear relationship between two variables measure the magnitude of a variable measure the significance of a variable measure the fit of a model

    asked on December 15, 2017
  44. Math

    Dieter deposists $ 9000 inoan account that pays 10%/a compunded quarterly, after 3 threes the inerest rate changes to 9%/a compounded semi-annually, calculate the value of his investments 2 years after this change

    asked on January 11, 2012
  45. math

    Given: ABCD is a parallelogram AM , BN − angle bisectors DM = 4 ft, MN = 3 ft Find: The perimeter of ABCD

    asked on May 15, 2017
  46. 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
  47. 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
  48. 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
  49. 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
  50. physics spring

    A glider on an air track is connected by springs to either end of the track. Both springs have the same spring constant,k , and the glider has mass M. A)Determine the frequency of the oscillation, assuming no damping, if k= 125N/m and M= 250g. (I got the

    asked on May 21, 2009
  51. 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
  52. 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
  53. History

    Which most accurately describe the impact of the Crusades on the Jewish community? Select all that apply. During the Fourth Crusade, Saladin entered the Crusades and massacred Jews in Constantinople. During the Third Crusade, England entered the Crusades

    asked on February 21, 2020
  54. math

    Sherry is playing the integer game and is given a chance to discard a set of matching cards. Sherry determines that if she discards one set of cards her score will increase by 12. If she discards another set, then her score will decrease by eight. If her

    asked on December 2, 2013
  55. Precalculus

    What is the doubling time of prices which are increasing by 5 percent per year?

    asked on September 19, 2012
  56. 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
  57. 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
  58. 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
  59. math

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

    asked on May 15, 2017
  60. 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
  61. physics

    a 160g hockey puck slides horizontally along the ice, and the coefficient of kinetic friction between puck and ice is 0.15. if the puck starts sliding at 3 m/s before it comes to a stop it travels 3.6m how do you get to this answer?

    asked on October 28, 2011
  62. Chemistry

    How much faster does nitrogen monoxide (NO) effuse in comparison to dinitrogen tetraoxide (N2O4)

    asked on May 18, 2018
  63. english

    What grammatical structure is the italicized portion of the sentence? By serving as a popcorn vendor, Don saw many good games. appositive?

    asked on November 4, 2013
  64. 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
  65. Math

    A man walks 3 miles due east, then 4 miles due north, then five miles due east. How far is he from his starting point?

    asked on October 25, 2015
  66. Math

    What is the doubling time of prices which are increasing by 5 percent per year?

    asked on September 19, 2012
  67. Math

    on the day Rachel was born, her grandparents deposited $ 500 into a savings account that earns 4.8%/a compounded monthly . They deposited the same amount on her 5th, 15th, and 10th birthdays. determine the balance in the account on Rachel's 18th birthday

    asked on January 18, 2012
  68. 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
  69. math

    In a class, every student knows French or German (or both). 15 students know French, and 17 students know German What is the smallest possible number of students in that class?

    asked on February 11, 2017
  70. 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
  71. physics

    We start with 5.00 moles of an ideal monatomic gas with an initial temperature of 123C. The gas expands and, in the process, absorbs an amount of heat equal to 1300J and does an amount of work equal to 2040J. What is the final temperature of the gas? Use

    asked on October 4, 2009
  72. Math

    A population with μ = 59 and s = 8 is standardized to create a new distribution with μ = 100 and s = 20. After the transformation, an individual receives a new score of X = 90. The original score for this individual was X = 51. True or False

    asked on December 15, 2017
  73. 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
  74. Chemistry

    Naoh (aq) + HCl (aq) --> NaCl (aq) + H2O (l) Using the dT determined in part 1, calculate the heat capacity of the calorimeter. Enthalpy of reaction= -58.3 kj/mol, Cs (NaCl = 3.91j/g C)density of 1 M NaCl = 1.037g/mL. dT= 12.88 degrees Celcius.50 mL of

    asked on November 12, 2012

    Suppose that a tank contains 680m^3 of neon at an absolute pressure of 1.01*10^5 Pa. The temperature is changed from 293.2 to 294.3 K. What is the increase in the internal energy of the neon? I don't have any idea to do it. Please help! Give me some

    asked on February 21, 2008
  76. Chemistry

    Suppose you are asked to find the area of a rectangle that is 2.1- wide by 5.6- long. Your calculator answer would be 11.76 . Now suppose you are asked to enter the answer to two significant figures. (Note that if you do not round your answer to two

    asked on September 27, 2012
  77. Math

    Sima invests $ 4240.00 in the first year, $ 4494.40 in the second year , and $ 4764.06 in the third year , how much did sima invest

    asked on January 11, 2012
  78. Language Arts

    Which of the following topics would be most appropriate for an autobiography narrative? A. your opinion of the opening ceremony at the Olympic Games B. your explanation of how to download MP3 files to your personal musical device C. your account of your

    asked on September 7, 2016
  79. chemistry (AP)

    The heat of neutralization of HCl (aq) by NaOH is -55.9Kj/mol H2) produced. If 50ml of 1.6M NaOH at 25.15 celsius is added to 25ml of 1.79M HCl at 26.34 celsius in a plastic foam cup calorimeter, what will be solution temperature be immediately after the

    asked on November 14, 2014
  80. 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
  81. Math

    Barry is 8 years older than his sister. In 3 years, he will be twice as old as she will be then. How old is each now? Please show work! I don't understand.

    asked on March 5, 2013
  82. Physics help.

    If a curve with a radius of 94.5 m is perfectly banked for a car traveling 72.4 km/h, what must be the coefficient of static friction for a car not to skid when traveling at 96.4 km/h?

    asked on March 5, 2012
  83. 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
  84. Physics

    A shaft is turning at 71.6rad/s at time zero. Thereafter, its angular acceleration is given by α = –10.8rad/s2 – 4.42 t rad/s3 where t is the elapsed time. Calculate its angular speed at t = 2.73s. and How far does it turn in these 2.73s

    asked on January 26, 2016
  85. 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
  86. Chemistry -repost thank you in advance

    I have a bottle of 95% ethanol purchased from the manufacturer. Normally, when it is not stated, does it mean 95% w/w ethanol? I need to prepare 100ml of 40% v/v ethanol solution from 95% ethanol. Please show me the calculation steps. Thanks.

    asked on September 20, 2010
  87. Math

    For questions 3 and 4, simplify each expression. 1. 4^4/4^6 -16 16 1/16

    asked on May 30, 2016
  88. Calculus and vectors

    A cylindrical tank is to have a capacity of 1000 m³. It is to fit into a foundry that is 12 m wide with a height of 11 m. The base of the tank will cost half as much as the top. The metal for the side of the tank will cost four fifths as much as the top.

    asked on January 22, 2014
  89. Math

    George invests $ 15 000 at 7.2%/a compounded monthly . How long will it take for his investment to grow to $ 34 000

    asked on January 10, 2012
  90. physics loop

    The small mass m sliding without friction along the looped track is to remain on the track at all times, even at the very top of the loop of radius r. (not unlike a roller coaster) A)In terms of the given quantities, determine the minimum release height h.

    asked on May 22, 2009
  91. English

    What is a subordinate clause?

    asked on November 4, 2013
  92. math

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

    asked on April 9, 2017
  93. Trig

    How do you find csc 163degrees 20minutes? (I didn't know how to insert the degree and minute marks)

    asked on January 10, 2010
  94. Poetry

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

    asked on February 2, 2015

    In basketball you score 2 points for a field goal and 1 point for a free throw. Suppose that you have scored at least 3 points in every game this season, and have a season high score of 15 points in one game. How many field goals and free throws could you

    asked on January 20, 2013
  96. 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
  97. chemistry

    if the partial pressure of the diatomic gas is .300 atm, what is the total pressure? 6 blue dots 5 orange dots 3 green dots consisting of 2 dots each (diatomic gas)

    asked on June 21, 2013
  98. Physics

    A block of mass m1 = 4.80 kg sits on top of a second block of mass m2 = 15.6 kg, which in turn is on a horizontal table. The coefficients of friction between the two blocks are µs = 0.300 and µk = 0.100. The coefficients of friction between the lower

    asked on October 31, 2009
  99. Math

    Class of 20 students, 13 play soccer, 8 play tennis and 2 play neither. Find how many students a) Play soccer or tennis b) Play both soccer and tennis c) Play only soccer

    asked on May 27, 2015
  100. Chemistry

    Which of the following substances have a standard heat of formation of zero? O2 at 25.O degrees C and 1 atm Fe at 1200 degrees C C2H6 at standard conditions Cl2 at 2 atm

    asked on June 19, 2013


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