Popular questions and responses by Rebecca
  1. english

    what are some poetic devices used in the following poem? "Mending Wall" by Robert Frost Something there is that doesn’t love a wall, That sends the frozen-ground-swell under it And spills the upper boulders in the sun, And makes gaps even two can pass

    asked on November 7, 2010
  2. math

    If is a line whose equation is y = 2x- 1, find the equation of the image of under each of the following translations:(x, y) S (x +3, y)

    asked on February 27, 2010
  3. Maths

    Find the sum of the following series: 1024 - 512 + 256 - 128 +...+ 1 So a = 1024, r = -0.5, but I need to know what n is in order to use the formula. So I tried ar^(n-1) which is: 1024(-0.5)^n-1 = 1 but I don't know how to find n from there. Thanks in

    asked on April 7, 2016
  4. Math

    A construction crew wants to hoist a heavy beam so that it is standing up straight. They tie a rope to the beam, secure the base, and pull the rope through a pulley to raise one end of the beam from the ground. When the beam makes an angle of 40 degrees

    asked on April 16, 2015
  5. grade 10 math

    Chris has $3.85 in dimes and quarters. There are 25 coins in all. How many of each type of coin does he have? If d represents the number of dimes and q represents the number of quarters, what two equations describe the problem?

    asked on March 10, 2011
  6. Chemistry

    Given the following half-reactions and associated standard reduction potentials: AuBr−4(aq)+3e−→Au(s)+4Br−(aq) E∘red=−0.858V Eu3+(aq)+e−→Eu2+(aq) E∘red=−0.43V IO−(aq)+H2O(l)+2e−→I−(aq)+2OH−(aq) E∘red=+0.49V

    asked on April 14, 2014
  7. Calculus

    A wire 60 cm long is to be cut into two pieces. One of the pieces will be bent into the shape of a square and the other into the shape of an equilateral triangle, as shown in the diagram below: a diagram showing a 60 cm wire cut into two pieces of length x

    asked on July 19, 2019
  8. Chemistry

    A voltaic cell utilizes the following reaction: 2Fe3+(aq)+H2(g)→2Fe2+(aq)+2H+(aq). What is the emf for this cell when [Fe3+]= 3.70M , PH2= 0.95atm , [Fe2+]= 7.0×10−4M , and the pH in both compartments is 4.05? Express your answer using two significant

    asked on April 14, 2014
  9. math

    Find the area of the regular polygon. Round your answer to the nearest tenth. the individual sides are 10 the radius is 13.07

    asked on May 4, 2013
  10. chemistry

    using VSEPR THEORY explain why 1)BF4- is a tetrahedral molecule 2)SF3+ is a Trigonal pyramidal molecule 3)ICI4- IS A SQUARE PLANER molecule 4IF5 IS A SQUARE pyramidal molecule 5)PF5 IS A TRIGNAL BIPYRAMIDAl molecule help Dr bob222

    asked on December 16, 2011
  11. History

    1) Which of the following best describes Affirmative Action? a) It was a way to fight corruption within the US government. b) The actions taken to instill new anti immigration laws. c) Of solving economic and educational discrimination. d) Of solely

    asked on May 13, 2015
  12. math

    The first ancient olympic games were held in 776 b.c. the ancient games were abolished in 393 a.d. The first modern olympics were held in 1896 a.d. a) How many years were there between the firstancient games and the year they were abolished? b) How many

    asked on May 7, 2009
  13. Chemistry

    Consider equation 3A+B=C+D. You react 4 moles of A with 2 moles of B. Which of the following is true? 1) Limiting reactant (L.R.) is one with higher molar mass 2) A is L.R. because you need 6 moles of A and have only 4 moles 3) B is L.R. because you have

    asked on February 1, 2017
  14. Grade 12 Data Management

    There are 12 questions on an examination, and each student must answer 8 questions including at least 4 of the first 5 questions. How many different combinations of questions could a student choose to answer?

    asked on September 27, 2011
  15. math

    1.A flywheel is rotating at 7 rad/sec. It has a 15-cm diameter. What is the speed of a point on its rim, in cm/min? 2.A wheel is rotating at 3 radians/sec. The wheel has a 30 cm radius. What is the speed of a point on its rim, in m/min? 3.What is the

    asked on January 14, 2019
  16. #3 Fitness (Check answers)

    1) The first step in the decision-making process is to brainstorm all possibilities (my answer) evaluate the result act realize there is a problem 2) Evidence that you have accomplished a goal is an example of which step in the SMART goal method? specific

    asked on April 25, 2016
  17. chemistry

    What charge would most likely form on an ion from elements in the following groups? a) Group 1A b) Group 2A c) Group 6A d) Group 7A

    asked on January 10, 2009
  18. Vectors

    A 80-N force is applied to the end of a 50-cm wrench and makes an angle of 45° with the handle of the wrench. a) What is the torque on a bolt at the other end of the wrench? b) What is the maximum torque that can be exerted by a 100-N force on this wrench

    asked on July 19, 2019
  19. Chemistry

    You can purchase hydrochloric acid in a concentrated form that is 37.0 hcl by mass and has a density of 1.20g/mL. Describe how exactly you would prepare 2.85 L of 0.500 M HCL from the concentrated solution.

    asked on May 7, 2014
  20. World Civilization

    1. In 1789, the National Assembly revoked the privileges of the aristocracy. This occurred in reaction to A. a peasant uprising. B. Louis XVI's withdrawal of troops from Paris. C. discontent among the poor people of Paris. D. the storming of the Bastille

    asked on April 11, 2014
  21. math

    The perimeter of the small square is one-third the perimeter of the large square. What are the side lengths of the squares? small square side = x large square side = x + 2

    asked on March 31, 2010
  22. MATH214

    Solve each of the following systems, if possible. Indicate whether the system has a unique solution, infinitely many solutions or no solution. (a) 3y = x – 10 y = x – 2 (b)x + y = 5 3x + 3y = 15

    asked on March 9, 2010
  23. Math

    The owner of the Good Deals Store opens a new store across town. For the new store, the owner estimates that, during business hours, an average of 90 shoppers per hour enter the store and each of them stays an average of 12 minutes. The average number of

    asked on September 28, 2018
  24. English Check answers

    Transportation Strike Disrupts Westridge Thousands unable to get to work or school WESTRIDGE, Ohio—More than 600 transportation employees went on strike at midnight last night after the Westridge City Council rejected their demand for a 10% pay increase.

    asked on June 30, 2016
  25. History

    Why was Vietnam key to the US taming communism in Asia? a) None of these answers b) Vietnam and the US had strong economic ties that both countries allocated throughout other countries in Asia. c) Vietnam was a major supplier of rice into the United

    asked on May 12, 2015
  26. History

    Why did Ho Chi Minh lead a resistance against France? a) He sought Vietnam’s independence. b) He wanted to control the country. c) He wanted more foreign influence and control other than France. d) He desired to keep French rulers in the Vietnam but

    asked on May 12, 2015
  27. Calculus 2

    Find c>0 such that the area of the region enclosed by the parabolas y=x^2−c^2 and y=c^2−x^2 is 90.

    asked on February 10, 2012
  28. math

    How many 3 digit numbers can be formed from the digits 2,3,5,6,7 and 9 which are divisible by 5 and none of the digits is repeated?

    asked on January 13, 2016
  29. History

    1) How was Nixon appeal to Middle America a strategized? a) He tried aggressively to gain the majority of his support for protesters and aimed his campaigns towards them. b) He highlighted the salient issues that plagued and concerned many less outspoken

    asked on May 13, 2015
  30. Rational Functions

    Write an equation for a rational function whose graph has the following properties: x-intercept of 3 y-intercept of -3 vertical asymptote of x=-2 horizontal asymptote of y=2

    asked on October 6, 2014
  31. 7th Grade Math

    At 9:00 on Saturday morning, two bicyclists heading in opposite directions pass each other on a bicycle path. The bicyclist heading north is riding 5 km/hour faster than the bicyclist heading south. At 10:30, they are 40.5 km apart. find both of their

    asked on January 4, 2012
  32. Chemistry

    is H2S2O7 or H2SO4 a stronger acid?

    asked on November 25, 2011
  33. Functions

    What is the purpose of division of polynomials?

    asked on October 13, 2011
  34. chemistry

    What is the explanation for the discrete lines in atomic emission spectra?

    asked on January 12, 2009
  35. Chemistry

    How many grams of H2O are required to react with excess CaC2 to produce 23.0 g of C2H2 according to the following equation? CaC2 + 2H2O -> Ca(OH)2 + C2H2 a.4.5 b.15.9 c.31.8 d.1.766 I think this equation works out by multiplying 2 moles by the molar mass

    asked on October 27, 2016
  36. Chemistry

    Hello! I really need help with this. Name the following salts according to the old -ic, -ous system and the stock system. a. CrS b. Cr2O3 c. CrI3 X 6H20 d. CuCl e. CuI2 f. CuBr2 x 4H20 g. HgCl2 h. Hg2Cl2 i. Fe (OH)3 I am totally lost. I don't know how to

    asked on September 29, 2015
  37. Contrasting East & West

    1. In 1938, British Prime Minister Chamberlain declared a final act of appeasement A. after Hitler attacked Poland. B. when Hitler's claim on the Sudetenland was accepted. C. immediately following the Nazi occupation of Austria. D. after Hitler's forces

    asked on April 11, 2014
  38. Math

    Nissan Appliances bought three dozen camcorders at a cost of $5,040. The markup on the camcorders is 30% of the selling price. What was the original selling price of each camcorder?

    asked on February 22, 2014
  39. Biology HELP

    How would the production of gelatinase help a pathogen be more virulent?

    asked on April 7, 2013
  40. statistics

    Can a student keep up their grade performance at the next level? Is a strong GPA at the Bachelors level a good predictor of a strong GPA at the Masters level, or are GPAs naturally going to decline since graduate school is tougher, or will GPAs

    asked on December 29, 2012
  41. Critical thinking

    I'm having trouble rewriting the ambiguous sentences. I have answered them but i'm not sure that they are right. 2. Please close the door behind you. My answer: Please close the door that is behind you. 3. we heard that he informed you of what he said in

    asked on June 15, 2012
  42. Calc 2

    Find c>0 such that the area of the region enclosed by the parabolas y=x^2−c^2 and y=c^2−x^2 is 90.

    asked on February 10, 2012
  43. Business math

    what the rebate of the finance charge and payoff would be if the pickup truck loan were paid off after 27 months instead of 60. Total of monthly payments 60 x 194.38. I don't know how to get the total finance charge

    asked on November 14, 2010
  44. Finance

    Brown Enterprises’ bonds currently sell for $1,025. They have a 9-year maturity, an annual coupon of $80, and a par value of $1,000. What is their current yield? 7.80% 7.90% 9.00% 9.10% 9.20%

    asked on April 21, 2010
  45. Math 104

    A belt connects two pulleys with radii 2 in and 4 in.. The velocity of point A on the belt is 25 ft/sec. What is the linear velocity and angular velocity for point B? What is the linear velocity and angular velocity for point C?

    asked on September 15, 2015
  46. Medical

    Can some one please tell me all the: adjectives adverbs conjunctions nouns prepositions pronouns verbs - in this paragraph? please! Thank you. The patient was brought to the operating room and Bier block anesthesia was performed. The right upper extremity

    asked on February 2, 2015
  47. density

    Suppose two worlds, each having mass M and radius R, coalesce into a single world. Due to gravitational contraction, the combined world has a radius of only 3/4R. What is the average density of the combined world as a multiple of p0, the average density of

    asked on December 1, 2013
  48. math

    Quadrilateral ABCD has a perimeter of 26 and sides of integer lengths. If AB=m and BC=CD=DA=n, then what is the difference between the greatest and least possible values of n? A) 7 B) 6 C) 5 D) 4 E) 3

    asked on September 14, 2013
  49. Statistics

    MBA_GPA BS GPA 2.82 3.05 3.49 3.45 3.28 3.5 3.25 3.55 3.26 3.3 2.87 3.05 3.16 3.35 3.4 3.35 2.84 3.05 3.72 3.7 3.22 3.5 3.44 3.55 3.65 3.9 3.02 3.3 3.03 3.25 3.8 3.8 3.23 3.5 3.26 3.5 3.53 3.75 3.75 3.9 3.15 3.2 3.66 3.75 3.36 3.45 3.79 3.85 2.85 3.05 3.74

    asked on December 29, 2012
  50. Chemistry

    The radius of a chromium atom is 125 pm. How many chromium atoms would have to be laid side by side to span a distance of 4.14 mm?

    asked on September 17, 2012
  51. physics

    How could the age of this asteroid fragment be determined?

    asked on February 29, 2012
  52. Science

    A blue-eyed man, both of whose parents were brown-eyed, marries a brown-eyed woman whose father was blue-eyed and whose mother was brown-eyed. This man and woman have a blue-eyed child. What are the genotypes of all these individuals?

    asked on February 23, 2012
  53. Astronomy

    The average distance between the Earth and the Sun is called the astronomical unit (AU), which is about 150 million km (1.5 x 108 km). Jupiter is 780 million km from the sun. a) How far is Jupiter from the sun in astronomical units (AU)? b) Based on your

    asked on October 2, 2011
  54. algebra

    One side of a triangle is 6 meters more than twice the shortest side. The perimeter is 75 meters. Find all three sides.

    asked on June 14, 2011
  55. gr10 science

    What is the critical angle in flint glass when light passes from flint glass into air? flint glass = 1.70 air = 1.0003

    asked on June 7, 2011
  56. trig

    how do you establish the identity of cos(3pi/2+0)=sin0

    asked on October 21, 2010
  57. statistics

    A company manufactures calculators in batches of 64 and there is a 5% rate of defects. What is the standard deviation for the number of defects per batch?

    asked on October 15, 2010
  58. physics

    a bob vibrates up and down on a vertical spring. if the period of the motion is two seconds, the frequency is: two seconds. i took f=1/period=1/2

    asked on June 27, 2010
  59. History

    Which of the following statements most accurately analyzes how the Philadelphia Convention shaped the new national government?

    asked on December 6, 2017
  60. algebra

    Problem Page The volume V of a fixed amount of a gas varies directly as the temperature T and inversely as the pressure P. Suppose that V=42 cm to the 3,when T=84 kelvin and P= 8kg over cm squared. Find the temperature when V=74 cm cubed and P= 10 kg over

    asked on March 14, 2017
  61. Chemistry

    If 3.60 moles of SiO2 and 3.60 moles of C react to form SiC accodring to the equation SiO2 + 3 C -> SiC + 2 CO how many moles of CO will be produced? a. 1.20 b.2.40 c.3.60 d.7.20 -Do I have to use SiC in any part of the equation, I am very confused and I

    asked on October 27, 2016
  62. English

    Is this paragraph’s main idea stated or implied? The greatest gift the Sumerians gave the world was the invention of writing. The Sumerians were a wealthy people. They needed some way to keep track of what they owned. They began drawing pictures. They

    asked on June 24, 2016
  63. Algebra 2

    What is the solution set to the following system? x + y = 5 and x^2 + y^2 = 25 A) (0,-5) (-5,0) B) (0,5) (-5,0) C) (0,-5) (5,0) D) (0,5) (5,0)

    asked on June 5, 2016
  64. Fitness (Check answers)

    1) Sitting in class wearing ear buds during a lecture is effective listening. TRUE OR FALSE ~ (my answer is FALSE) 2) Defense mechanisms should be used as often as possible to deal with uncomfortable emotions. TRUE OR FALSE ~ (my answer is FALSE) 3) Daily

    asked on April 25, 2016
  65. magh

    a liscense plate that has 3 numbers from 0-9 and 2 letters where each number and a letter may be used more than once. Find the Fundamental Counting Principle to find the number of outcomes in the situation

    asked on February 9, 2016
  66. precalc

    3- l2x-4l is less than or equal to 1 are the values of x x is greater than or equal to 3 x is less than or equal to -3

    asked on September 27, 2015
  67. life orientation

    assess the extent to which bad road use has a direct impact on the physical, emotional, social and economic aspects to the family, the community and the country.

    asked on August 12, 2015
  68. Math

    Financial aid students must pass 2/3 of their courses each term in order to continue their aid. If a student is taking 18 hours, how many hours must be passed?

    asked on July 20, 2014
  69. Math

    The entire can needs to be painted, including the top and bottom. If the diameter of the lid (x) is 5 cm, and the height of the can (y) is 9 cm, what is the approximate total surface area that will need to be painted?

    asked on June 17, 2014
  70. physics

    a projectile launched speed of 31.1m/s at angle 71.2 degrees above horizontal fill in table time 0 vx m/s 10.0m/s vy 29.4m/s ax? ay?

    asked on October 6, 2013
  71. Math

    Kevin has 18 unit cubes. How many different rectangular prisms can be built using all the cubes

    asked on April 21, 2013
  72. statistics

    A class test resulted in a mean score of 60% and a standard deviation of 15%. You scored 75%. Assuming the scores follow a normal distribution, and there are 200 in the class, how many students scored better than you? Give your answer to the nearest whole

    asked on August 30, 2012
  73. science

    The somatic cells of a dog contain 78 chromosomes. Which of these is false? a) the diploid number is 78 b)the haploid number is 39 c) sperm produced by a dog contains 39 chromosomes d) a cell in metaphase of mitosis contains 78 chromosomes e) a cell in

    asked on February 22, 2012
  74. English

    What is the universal truth in "Oedipus the King"?

    asked on February 20, 2012
  75. Advanced Functions

    The earth rotates on its axis once every 24 hours. How long does it take Earth to rotate through an angle of 4(pi)/3?

    asked on November 14, 2011
  76. english

    What kinds of things do parents teach their children in the animal kingdom are similar to the things our parents teach us?

    asked on November 13, 2011
  77. Gr10 math

    A rectangular lawn measuring 8m by 4m is surrounded by a flower bed of uniform width. The combined area of the lawn and the flower bed is 165m^2. What is the width of the flower bed?

    asked on May 31, 2011
  78. gr 10 math

    Solve using the quadratic formula. a) x^2 - 7x + 12 = 0 a = 1 b = -7 x = -b +/- the sr of b^2 - 4ac /2a 7 +/- the sr of -7^2 - 4(1)(12) /2a 7 +/- the sr of -49 - 48 /2a 7 +/- the sr of -97 /2a 7 +/- 97 /2a -90/2=-45 -104/2= 54 The roots are -45 and 54. did

    asked on May 31, 2011
  79. physics

    A 16000 kg sailboat experiences an eastward force of 17700 N due to tide pushing its hull while the wind pushes the sails with a force of 87500 N directed toward the northwest (45 degrees westward of North or 45 degrees northward of West). What is the

    asked on March 24, 2011
  80. Calc 3

    Find the parametric equations for the tangent line to the curve with the given parametric equations at specified point. x= e^t y=te^t z=te^(t^2) (1,0,0)

    asked on November 10, 2010
  81. physics

    suppose you exert 150N on your refrigerator and push it across the kitchen floor at constant velocity. a. is the friction force equal and opposite to your 200N push? explain b. does the friction force make up the reaction force to your push?

    asked on November 5, 2010
  82. chemistry

    what is the name for the compound Al2I3??

    asked on October 26, 2010
  83. statistics

    A company manufactures calculators in batches of 64 and there is a 5% rate of defects. What is the standard deviation for the number of defects per batch?

    asked on October 15, 2010
  84. 10th grade math

    The sum of three numbers is 301. The second number is 3 less than twelve times the first number. The third number is 4 more than seven times the first number.

    asked on December 11, 2009
  85. physics

    a boy who is 1.5m tall throws a ball into the air the ball attains a height a of 3m above the boy's head and then falls back to the ground the boy's hand was 1.2 m above the ground when he released the ball how long does it take to reach it's maximum

    asked on October 1, 2006
  86. math againn (converting decimals)

    Write 6.4% as a decimal and as a fraction. Write 2 and one fourth as a decimal and as a percent. To convert from percent to decimal simpoy divide by 100. 6.4% = 0.064. To convert to fraction (do you want a mixed fraction or not? and percent or not?). For a

    asked on August 22, 2006
  87. math (unit rate)

    Find the unit rate. $121.50 for working 18 hours wages = hourly rate x time 121.50 = hourly rate x 18 hours. Solve for hourly rate. how do i solve for hourly wages = hourly rate x time 121.50 = hourly rate x 18 hours. You want to get hourly rate by itself.

    asked on August 22, 2006
  88. math

    A circle with diameter r is internally tangent to a circle with radius r at the point T. For some other point S on the larger circle, chord ST intersects the smaller circle at point X, and the tangents to a larger circle at S and T meet at point Y. Show

    asked on August 13, 2019
  89. math

    1. A flywheel is rotating at 7 rad/sec. It has a 15-cm diameter. What is the speed of a point on its rim, in cm/min? 2. A wheel is rotating at 3 radians/sec. The wheel has a 30 cm radius. What is the speed of a point on its rim, in m/min? 3. What is the

    asked on January 9, 2019
  90. AP Chemistry

    A 0.2500 M NaOH solution was used to titrate a 16.85 mL hydrofluoric acid solution. The endpoint was reached after 31.20mL of titrant were added. Find the molar concentration of hydrofluoric acid in the original solution.

    asked on February 4, 2018
  91. History

    How did the legal opinion of John Marshall shape the US government?

    asked on December 6, 2017
  92. chemistry

    a )what use of carbon , properties of carbon? b) is their any organic compound that synthsies like urea in lab?

    asked on October 8, 2017
  93. Chemistry

    Hello.Need your help guys.Burning 2g of vitamin c yields 3g and 0.82g of CO and water respectively.What is the empirical formula of vitamin c and molecular mass if the molar mass is 264g/mol?

    asked on September 24, 2017
  94. Physics

    Your 2000 kg car is going 40 m/s on the highway when you see a police car up ahead. You apply the maximum 10000 N of brake force to slow your car down to the speed limit of 30 m/s. How many seconds will it take you to get down to the speed limit?

    asked on December 6, 2016
  95. Calculus I

    (Six pigpen problem). A 2 × 3 array of six congruent rectangular pigpens (that all look the same from above) will be in the overall shape of a rectangle R. We may use 100 feet of fencing to form the boundaries of the pigpens. Find the dimensions for a

    asked on October 28, 2016
  96. conclusions - check answer

    Which of the following is a true statement about writing introductions of rough drafts? A. Do not worry about the central point of your essay; it will happen later on as you revise your paper. (MY ANSWER) B. Pay close attention to the correct spelling of

    asked on July 5, 2016
  97. conclusions

    What function do conclusions serve in essays? A. Conclusions provide the supporting details of an essay. B. Conclusions develop the main idea of an essay. C. Conclusions sum up the main idea of an essay. (MY ANSWER) D. Conclusions introduce new ideas

    asked on July 5, 2016
  98. math

    If the first term in an arithmetic sequence is 15 and the tenth term is 69. What is the fourth term in the sequence?

    asked on May 25, 2016
  99. Fitness (Check answers)

    6) Gang member often have weapons and are involved in violence. TRUE OR FALSE ~ (my answer is TRUE) 7) Being disruptive in class and getting angry easily could be sign of abuse. TRUE OR FALSE ~ (my answer is FALSE) 8) People with high self-esteem are prone

    asked on April 25, 2016
  100. Chem

    Name the following binary compounds consisting of two nonmetals or a metalloid and a nonmetal. 1. AsH3= arsine 2. AsF5= arsenic pentafluoride 3. HCL= Hydrogen chloride is this right?

    asked on September 29, 2015


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