Questions and responses by Anonymous, page 76
  1. math

    a ball is dropped from a height of 3 meters. It bounces to 2/3 of the height from which it fell at each boune.find distance travelled

    asked on September 4, 2014
  2. 8th grade math

    a square photo display board is made up of 60 rows of 60 photos each. the area of each square is 4 in. how long is each side of the display board?

    asked on September 3, 2014
  3. math

    Ricky has a total of 64 pennies and quarters in a jar. He has 34 more pennies than quarters. How much money does ricky have in the jar

    asked on September 2, 2014
  4. science

    Compute the density in g/cm3 of a piece of metal that has a mass of 0.345 kg and a volume of 59 cm3

    asked on August 30, 2014
  5. business

    The Garcia Company’s bonds have a face value of $1,000, will mature in 10 years, and carry a coupon rate of 16 percent. Assume interest payments are made semiannually.

    asked on August 30, 2014
  6. physics

    the diameter of the moon is 3480 km. A.)what is the surface area of the moon? B.)how many times larger is the surface area of earth?

    asked on August 27, 2014
  7. math

    Without using mathematical table or calculator evaluate 0.18x12.5/0.05x0.2?

    asked on August 26, 2014
  8. statistics

    According to a survey, only 20% of customers who visited the web site of a major retail store made a purchase. Random samples of size 50 are selected.Tthe mean of all the sample proportions of customers who will make a purchase after visiting the web site

    asked on August 25, 2014
  9. math

    ATM personal identification number PIN codes typically consist of four-digit sequences of numbers. Find the probability that if you forget your PIN, you can guess correct sequence if you recall the two digits

    asked on August 25, 2014
  10. MATH

    find the slope,if any, of the line perpendicular to the line through the points (2,-7) and (3,4). i need to show my work!. i got 11 as my answer but i think its wrong.:(

    asked on August 20, 2014
  11. Science

    A piece of magnesium ribbon weight 24g is burn in air an 40g magnesium oxide is formed. What mass of oxygen combined with the magnesium in this reaction

    asked on August 20, 2014
  12. math

    the distance between DELHI TO Meerut is 75km two trains speed of 100km/h & 80 km/h leave the two station at 8am towards each other at what time will they pass each other

    asked on August 18, 2014
  13. Physics

    A gun is fired parallel to the ground. At the same instant, a bullet of equal size and mass next to the muzzle is released and drops to the ground. Which hits the ground first and why? I think that the bullets will hit the ground at the same time because

    asked on August 7, 2014
  14. quant

    The president of Pegasus Corporation is trying to decide which of three candidates (denoted as candidates A, B, and C) to hire as the firm’s new vice president of Marketing. The primary criteria the president is considering are each candidate’s

    asked on July 23, 2014
  15. Calc

    Give a 4-term left Riemann sum approximation for the integral below. 16 ⌠ 3*((x+2)^(1/2)) ⌡ 12

    asked on July 17, 2014
  16. Calculus Help

    The deal your assistant signs calls for the sale of a minimum of 260 chairs and up to 410 chairs. The price will be $88 per chair if only 260 chairs are bought, but will be discounted by $0.2 per chair (on the entire order) for every chair ordered in

    asked on July 15, 2014
  17. Social Studies

    what was the location of George Washington's home? I think it is Mount Vernon, but from research I see he also lives at Pope's Creek where he was born, and Ferry Farm on the Rappahannock River where he spent much of his youth.

    asked on July 11, 2014
  18. Physics

    Consider two cases in which the same ball is thrown against a wall with the same initial velocity. In case A, the ball sticks to the wall and does not bounce.In Case B, the ball bounces back with the same speed that it came with. a.) In which of the two

    asked on July 7, 2014
  19. Physics

    A railroad car with a mass of 12400 kg collides and couples with a second car of mass 18700 kg that is initially at rest. The first car is moving with a speed of 7.7 m/s prior to the collision. (a) What is the initial momentum of the first car? (b) If

    asked on July 7, 2014
  20. Organiation administration

    One of the most frequent causes of game protests is: Use of officials without ratings Poor sportsmanship of spectators Use of ineligible players Failure to pay agreed fees Dishonesty of officials

    asked on July 2, 2014
  21. math

    How much is 7.25 kg at $20 per kilogram?

    asked on June 26, 2014
  22. Algebra 2

    Every day, there are 5 times more likes on an internet video of a dog which is modeled by the function c(n) = (5)n − 1, where n is the number of days since the video posted. On the first day, there were 103 likes. What is the function that shows the

    asked on June 22, 2014
  23. programming

    I need a help regarding this. Compute and display the sum o 1st and 2nd number, Difference of sum and 3rd number, product of difference and 4th number, Quotient of product and 5th number using Eclipse Helios. My subject is OOP

    asked on June 21, 2014
  24. organic chemistry

    1. Arrange the following in order of decreasing reactivity toward nitration. Fully explain please I could use some help!! A. acentanilide, b. bromobenzene, C. acetophenone, D. toluene 2. Explain why p-nitrophenol is a stronger acid than phenol itself?

    asked on June 17, 2014
  25. medical billing

    if an institutional review board is involved in a request information, the information is likely by a

    asked on June 17, 2014
  26. math

    Approximately how much principal would need to be placed into an account earning 3.575% interest compounded quarterly so that it has an accumulated value of $68,000 at the end of 30 years?

    asked on June 17, 2014
  27. algebra 2

    The height of an arrow shot in the air is given by the function h(t)=-16t^2+144t+24, where h(t) represents the height in feet, and t represents the time in seconds. what is the maximum height of the arrow? how long does it take to reach the maximum height?

    asked on June 16, 2014
  28. whole number

    At the end of the year, a library reported 32 books lost or stolen, and 24 books were sent out for repair. If the library originally had 1,219 books, how many were left on the shelves or in circulation?

    asked on June 12, 2014
  29. Physics

    3) What is the emf of a battery with an internal resistance of 0.15 if the battery delivers 1.5 A to an externally connected 5.0 resistors?

    asked on June 12, 2014
  30. physics

    A motorist is driving at a constant velocity of 28 m/s when he decides to pass a car that is in front of him. He accelerates at a rate of 2.5 m/s2 for 3.0 seconds while passing the car. What is his velocity at the end of the 3.0 seconds?

    asked on June 11, 2014
  31. Civics

    In The Wealth of Nations, Adam Smith mentions that very good grapes could be grown in Scotland. However, growing high quality grapdes in Scotland would be about 30 times as expensive as purchasing grapes from foreign countries. Some nations are better than

    asked on June 10, 2014
  32. biology

    A bacterial strain divides once every 30 minutes. After 90 minutes, a single bacterium can form a total of ___ bacteria

    asked on June 9, 2014
  33. boring math

    A business purchases a piece of equipment for $25000. The equipment will be replaced in 10 years at which time its salvage value is expected to be $2000. Write linear equation giving the value V of the equipment during the 10years.

    asked on June 3, 2014
  34. physics

    A passenger on a train notices that a 2.00 kg mass is displaced 10.0° from the vertical as the train accelerates. (a) What is the acceleration of the train? (b) What would the acceleration be if the mass was 5.00 kg? c. What would angle have to be to

    asked on June 3, 2014
  35. math

    a man is in a boat 2 miles from the nearest point on the coast. He is to go to point q, 3 miles down the coast and 1 mile inland. If he can row at 2 mi/h and walk 4 mi/h toward what point on the coast should he row in order to reach point q in the least

    asked on June 2, 2014
  36. College Algebra ..Please help

    I have about 5 homework problem that I am stuck on! please help me. The first of 5 is: A rectangular garden is 20 ft longer than it is wide. Its area is 8000 ft{}^2. What are its dimensions? Im not even sure where to start with this one. Next #2: The area

    asked on June 2, 2014
  37. math problem

    Find an equation of the line that passes through two points. (0,4) and (7,10)

    asked on June 2, 2014
  38. math HELP!!!!!!

    2. Researchers at Jackson Hospital asked 40 randomly selected patients about their sleep habits. Sixteen reported sleeping 8 hours or more each night. If their are 700 patients in the hospital, estimate the number of patients who sleep 8 hours or more each

    asked on June 2, 2014
  39. College Algebra

    I'm sorry I wrote the problem wrong previously. "The equation x^2-9x-1=0 has 2 solutions A and B. Where A < B. x^2-9x-1=0 (x-9)x=1 x^2=9x+1 (x-9/2)^2-85/4=0 Solutions x=1/2(9- sq root 85) and x=1/2(9 + sq root 85) I also have a second similar problem.

    asked on June 2, 2014
  40. rounding to the nearest meter

    51.423 rounded to the nearest meter is 51? or 51.4

    asked on June 2, 2014
  41. help

    A person standing 34 meters from the foot of a chimney finds that the measure of the angle of elevation to the top of the chimney is 52 degrees. To the nearest tenth of a meter, find the height of the chimney.

    asked on May 30, 2014
  42. College Algebra

    Wilma drove at an average speed of 35 mi/h from her home in City A to visit her sister in City B. She stayed in City B 15 hours, and on the trip back averaged 50 mi/h. She returned home 41 hours after leaving. How many miles is City A from City B Distance

    asked on May 29, 2014
  43. Algebra 1

    Simplify the following rational expression: 6w^2 + 11w - 7/6w - 3

    asked on May 24, 2014
  44. LA

    What are some Disney movies that portray the American dream?

    asked on May 22, 2014
  45. Statistics

    A confidence interval for a population mean has a margin of error of 3.1. a)Determine the length of the confidence interval. b)If the sample mean is 56.7, obtain the confidence interval.

    asked on May 21, 2014
  46. chemistry

    name the compound CH3CH=C(CH3)CH(CH3)2.

    asked on May 20, 2014
  47. English

    What punctuation is missing from the sentence below? I didn't bring Tom, my younger cat, or Anne, my young hamster I did bring Taylor, my parrot. A. Comma B. Apostrophe D. Hyphen C. Colon B?

    asked on May 19, 2014
  48. chemistry

    The decomposition of N2O5 proceeds according to the following equation 2 N2O5(g) → 4 NO2(g) + O2(g). The rate constant, k, for the reaction at 298 K is 2.20 x 10-3 min-1. If a reaction is set up in a vessel at 298 K, with an initial concentration of

    asked on May 15, 2014
  49. Algebra :)

    Tammy will donate up to $480 to charity. The money will be divided between two charities: the City Youth Fund and the Educational Growth Foundation. Tammy would like to donate at least $140 dollars to the Educational Growth Foundation. She would also like

    asked on May 14, 2014
  50. Algebra

    1) Given the arithmetic sequence an = 4 - 3(n - 1), what is the domain for n? All integers where n ≥ 1 All integers where n > 1 All integers where n ≤ 4 All integers where n ≥ 4 2) What is the 6th term of the geometric sequence where a1 = 1,024 and

    asked on May 14, 2014
  51. Science

    explain air resistance in terms of colliding particles Please Help...nothing to complex please

    asked on May 13, 2014
  52. physics

    Oxygen diffuses from the surface of insects to the interior through tiny tubes called tracheae. An average trachea is about 2mm long and has cross-sectional area of 2×10−9m^2. Assuming the concentration of oxygen inside is half what it is outside in the

    asked on May 13, 2014
  53. Chem Check Please!!!

    Calculate for the electrochemical cell below, Ag(s) | AgCl(s) | Cl–(aq) || Cu2+(aq) | Cu(s) given the following standard reduction potentials. Cu2+(aq) + 2 e– -> Cu(s) E = +0.337 V AgCl(s) + e– -> Ag(s) + Cl–(aq) E = +0.222 V a. –0.115 V b.

    asked on May 6, 2014
  54. Physic

    A massless rope is wrapped around a hollow cylinder of radius 23 cm whose central axis is fixed in a horizontal position. A mass of 3.8 kg hangs from the rope and, starting from rest, moves 137 cm in 2.2 s. What is the mass of the cylinder? (Answer: 62kg)

    asked on May 6, 2014
  55. Science

    Explain the energy transformations during skydiving? please note: that I need to EXPLAIN!!! Thank you very much in advance...your help is very much appreciated!! x

    asked on May 5, 2014
  56. english

    Which propaganda technique is used in this sentence? The candidate I endorse believes to his very soul that this change would destroy this lovely community and its soul by disrupting you, its heart and soul.

    asked on May 5, 2014
  57. math

    Evaluate: 2 to the fourth power + 2 to the third power

    asked on May 1, 2014
  58. science

    Which of the following illustrates mechanical weathering? A. Carbonic acid weathers marble limestone B.As plants grow, they produce weak acids that slowly dissolve rock C.Oxidation causes weathering in rock

    asked on May 1, 2014
  59. Chemistry

    What is the de Broglie wavelength of an electron traveling at 1.26×105m/s ?

    asked on April 24, 2014
  60. calculus help

    A particle is moving with the given data. Find the position of the particle. a(t)= (t^2 - 5t +7) , s(0)=0 , s(1)=20 Thanks!

    asked on April 23, 2014
  61. chemistry

    consider the following equilibrium. 4NH3(g) +3O2(g) 2N2(g) + 6H2O(g) suppose 0.30mol of NH3 and 0.40mol of oxygen are added to a 5.0L container. If x mol of water is present at equilibrium, what is the equilibrium concentration of oxygen?

    asked on April 22, 2014
  62. Language arts verbs

    Aaron plans to attend college once he completes this course workbook

    asked on April 22, 2014
  63. physics

    A small ball with a mass of 0.05 kg moves along a circular orbit with a radius of 0.9 m at a speed of 9.0 m/s. What is the angular momentum of the ball? If the angular momentum of this ball were quantized in the same manner as the angular momentum of

    asked on April 22, 2014
  64. English Help Please!!! Check!!

    Memo Edit Today, Rite Properties needs to send a memo to the residents of The Plaza, an apartment complex they own. Review the memo thoroughly, then edit it for writing style (cohesion, concision, clarity, diction, and variety) AND professional tone and

    asked on April 21, 2014
  65. math

    Question 12.12. Katie had an unpaid balance of $1,734.50 on her credit card statement at the beginning of January. She made a payment of $165.00 during the month. If the interest rate on Katie's credit card was 7% per month on the unpaid balance, find the

    asked on April 20, 2014
  66. physics

    What is the de Broglie wavelength of a 5.0-eV electron?

    asked on April 17, 2014
  67. science

    A car driver accelerates to a speed of 35 mph and then takes her foot off the pedal. Even though she does not press the brake pedal at any time, she eventually rolls to a stop. What causes that?

    asked on April 15, 2014
  68. physics

    A hammer with 10 J of kinetic energy hits a nail and pushes it 5.0 mm into a plank. Both the hammer and nail come to rest after the collision. What is the average force that acts on the nail while it moves the 5.0 mm?

    asked on April 14, 2014
  69. physics 1

    A person is sitting with one leg outstretched and stationary, so that it makes an angle of 30.0° with the horizontal, as the drawing indicates. The weight of the leg below the knee is 50.5 N, with the center of gravity located below the knee joint. The

    asked on April 13, 2014
  70. chemistry

    You have been asked to do a dilution of a copper sulfate solution. The solution to be diluted is 2.88 M copper sulfate. What volume of the 2.88 M copper sulfate is required to make 250 mL of 1.03 M copper sulfate solution?

    asked on April 10, 2014

    Which chemical equation is balanced? (1 point) H20 H2 + 2O2 2H20 2H2 + O2 2H2O H2 + 2O2 H20 2H2 + 2O2 i think its c

    asked on April 9, 2014

    The picture below shows a container that Rene uses to freeze water. A cylinder is shown with base diameter of 6 centimeters and the height as 8 centimeters. What is the minimum number of identical containers that Rene would need to make 2000 cm3 of ice?

    asked on April 9, 2014
  73. physics

    A baseball pitcher throws a baseball horizontally at a linear speed of 41.3 m/s. Before being caught, the baseball travels a horizontal distance of 15.4 m and rotates through an angle of 52.7 rad. The baseball has a radius of 3.74 cm and is rotating about

    asked on April 9, 2014
  74. math

    The balance sheet is used to project future cash receipts t or f

    asked on April 8, 2014
  75. Educational tech-1 question

    What is the difference between tangible and intangible property? Tangible and intangible property are both covered by intellectual property protections. Tangible property is covered by intellectual property protections, but intangible property is not.

    asked on April 7, 2014
  76. Help plz!!!

    Which of the following terms refers to legal protection provided against copying, distributing, performing, or changing both published and unpublished works? intangible property tangible property copyright*** intellectual property 2. What is piracy? the

    asked on April 7, 2014
  77. chemistry

    When 0.451g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises from 26.7∘C to 29.6∘C.Find ΔErxn for the combustion of biphenyl in kJ/mol biphenyl. The heat capacity of the bomb calorimeter, determined in a separate

    asked on April 6, 2014
  78. trig

    Help! Ships A and B leave port at the same time and sail on straight paths making an angle of 60 degrees with each other. HOw far apart are the ships at the end of 1 hour if the speed of ship A is 25 km/h and that of ship B is 15 km/h?

    asked on April 2, 2014
  79. Science

    What tool is used to capture the energy in sunlight?

    asked on March 31, 2014
  80. English

    Which is President Kennedy’s intent when using questions in the last paragraph of this excerpt?

    asked on March 31, 2014
  81. Math

    your class is conducting an experiment to study geometric sequences. The class forms a line. the first person takes a whole pizza,divides it in half, keeps half, and hands it to the next person. The next people in line do the same with there peices. Which

    asked on March 30, 2014
  82. survey math 140

    a textbook search is considering 19 books for possible adoption. the committee has decided to select 5 of the 19 for furture consideration in how many way can id do so

    asked on March 29, 2014


    asked on March 28, 2014
  84. physics

    a spaceship is moving at 1000 m/s release a satellite of mass 1000 kg at a speed of 10 000 m/s. what is the mass of the spaceship if it slows down to a velocity of 910 m/s?

    asked on March 25, 2014
  85. French

    What is the difference between "rue" and "roue" in pronunciation?

    asked on March 25, 2014
  86. biology

    What graphic could you use to best show the checkpoints in the cell cycle? a. line graph b. bar graph c. flowchart d. map I'm not sure, I think it's c?

    asked on March 19, 2014
  87. math

    holly's garden is divided into 5 equal sections. she will fence the garden into 3 areas by grouping some equal sections together. what part of the garden could each fenced area be?

    asked on March 18, 2014
  88. Introduction to Computers

    what type of memory or storage device is prone to losing data if the power goes out? A. A USB stick B. An External Drive C. A DDR SDRAM module D. A SATA drive

    asked on March 15, 2014
  89. physics

    A missile of mass 1.20 102 kg is fired from a plane of mass 5.50 103 kg initially moving at a speed of 3.05 102 m/s. If the speed of the missile relative to the plane is 1.21 103 m/s, what is the final velocity of the plane?

    asked on March 14, 2014
  90. math

    Solve the following problem using 6.2%, up to $106,800, for social security tax and 1.45%, no wage limit, for Medicare tax. Kristy Dunaway has biweekly gross earnings of $1,750. What are her total social security and Medicare tax withholdings for a whole

    asked on March 14, 2014
  91. Grammar

    Complete the form as soon as possible, but no later than March 23th. Complete the form as soon as possible, but not later than March 23rd. Which sentence is correct?

    asked on March 12, 2014
  92. Math

    Write a division equation that has a solution of -20

    asked on March 11, 2014
  93. k

    A pole-vaulter just clears the bar at 4.07 m and falls back to the ground. The change in the vaulter's potential energy during the fall is -3900 J. What is his weight?

    asked on March 11, 2014
  94. Physics

    What is his kinetic energy when his potential energy reduces to 1000 J? Express your answer to two significant figures and include the appropriate units

    asked on March 10, 2014
  95. algebra 1

    Divide the following radical and simplify the answer. 2003-04-05-00-00_files/i0160000.jpg

    asked on March 10, 2014
  96. math

    what is the equation in point-slope form for the line parallel to y=-2x+10 that contains j(6,8)?

    asked on March 9, 2014
  97. chemistry

    The equilibrium constant, Kp, for the following reaction is 2.74 at 1150 K. Calculate Kc for this reaction at this temperature. 2SO3(g) 2SO2(g) + O2(g)

    asked on March 9, 2014
  98. math

    Paul Curcio earns $8.25 per hour for regular time up to 40 hours, time-and-a-half for overtime, and double time for the midnight shift. Last week Paul worked 58 hours, including 6 on the midnight shift. What are his gross earnings?

    asked on March 8, 2014
  99. Algebra 1 Answer Check (Reiny)

    Factor each trinomial. 1. x^2 + 6x + 5 A: (x + 1)(x +5) 2. x^2 - 7x - 12 A: (x - 3)(x - 4) Solve each system by substitution. 3. 2x - y = 1; x - y = -2 A: (3, 5)

    asked on March 7, 2014
  100. Math(check answer)

    A bag contains 9 green marbles and 11 white marbles. You select a marble at random. What are the odds in favor of picking a green marble? A. 9:20 B. 2:9 C. 11:9 D. 9:11 (I think its a.)

    asked on March 5, 2014