Popular questions and responses by CJ
  1. history

    Which is an example of literature produced to spread false and negative perceptions of Jews?

    asked on December 26, 2018
  2. US History

    Which of the following statements about the Platt Amendment is true? A - It guaranteed that Cuba would be independent by 1915. B - It prevented the United States from intervening in Cuban foreign affairs. C - It essentially made Cuba a U.S. protectorate. D

    asked on October 24, 2013
  3. Chemistry

    What is the empirical formula for a molecule containing 52.20 grams manganese (Mn0 and 3.80 grams of Carbon (c)?

    asked on July 25, 2015
  4. Physics

    A 2.50g bullet, traveling at a speed of 425m/s, strikes the wooden block of a ballistic pendulum. The block has a mass of 270g (a) find the speed of the bullet/block combination immediately after the collision (b) how high does the combination rise above

    asked on March 2, 2007
  5. Physical Science

    1. Which equation correctly shows beta decay? (A) 210/82 Pb -> 209/81 Tl + 0/-1 e + y (B) 210/82 Pb -> 209/83 Bi + 0/-1 e + y (C) 210/82 Pb -> 210/83 Tl + 0/-1 e + y (D) 210/82 Pb -> 210/83 Bi + y (E) 210/82 Pb -> 210/83 Bi + 0/-1 e + y 2. The half-life if

    asked on November 18, 2013
  6. Math/Trig

    The following is a table for the maximum temperature per month, for Boulder, CO Month|° F Jan:45.1 Feb:48.2 Mar:53.8 Apr:62.8 June:71.6 July:81.5 Aug:85.1 Sept:76.6 Oct:66.7 Nov:52.9 Dec45.5 Find the sinusoidal function that models this data. How do I do

    asked on January 14, 2011
  7. math

    solve: I=Prt, for P

    asked on March 31, 2011
  8. Math/Trig

    Solve: 2 sin x - 1 = 0 for 0 degrees is less than or equal to x is less than 360 degrees.

    asked on January 20, 2011
  9. Physics

    A woman stands at the center of a platform. The woman and the platform rotate with an angular speed of 4.00 rad/s. Friction is negligible. Her arms are outstreched, and she is holding a dumbbell in each hand. In this position the total moment of inertia of

    asked on March 21, 2007
  10. math

    Bianca has a total of 25 cent. She has some nickels and pennies. How many different combinations of nickels and pennies could Bianca have?

    asked on October 27, 2014
  11. calc2

    At what constant, continuous annual rate should you deposit money into an account if you want to have $1,000,000 in 25 years? The account earns 5% interest, compounded continuously. Round to the nearest dollar.

    asked on May 16, 2011
  12. Chemistry

    A star is estimated to have a mass of 1 ✕ 1036 kg. Assuming it to be a sphere of average radius 7.0 105 km, calculate the average density of the star in units of grams per cubic centimeter. round to the correct number of significant figures.

    asked on September 22, 2017
  13. math

    If a polynomial equation p(x)=0 has 3+4i as a solution 3-i 4-3i 4+3i 3-4i

    asked on January 11, 2016
  14. math

    How are the real solutions of a quadratic equation related to the graph of the quadratic function?

    asked on October 29, 2015
  15. algebra 2

    A landscaper is designing a flower garden in the shape of a trapezoid. She wants the shorter base to be 3 yards greater than the height and the longer base to be 7 yards greater than the height. She wants the area to be 295 square yards. The situation is

    asked on October 21, 2015
  16. Chemistry

    Silver chromate may be prepared by the following reaction. 2 AgNO3(aq) + K2CrO4(aq)  Ag2CrO4(s) + 2 KNO3(aq) Calculate the mass of silver chromate produced when 0.623 L of 1.345 M silver nitrate is reacted with 245 mL of 1.89 M potassium chromate.

    asked on October 2, 2014
  17. Trigonometry

    Using the same equation from problem 1, what is the average temperature in Atlanta, GA, for the month of June? equation from #1 is y = 18.25 sin(pi/6 t - 2.09) + 61.15 where t is the time in months and January is t = 1.

    asked on January 14, 2011
  18. Math/Trig

    The average temperature, in °F, for Atlanta, GA is modeled by the sinusoidal function y = 18.25 sin(pi/6 t - 2.09) + 61.15 where t is the time in months and January is t = 1. What is the average temperature for the month of February? How do I do this

    asked on January 14, 2011
  19. physics

    A deep mountain valley is separated by two vertical cliffs. One cliff is 600 meters high and the other is 400 meters high. A cable car runs from the foot of each cliff to the top of the other cliff. At what height above the ground do the two cable cars

    asked on September 19, 2010
  20. Physics

    A wave traveling in the +x direction has an amplitude of 0.50 m, a speed of 5.7 m/s, and a frequency of 18 Hz. Write the equation of the wave in the form given by either Equation 16.3 or 16.4. (Answer in terms of t and x. Assume standard units.) please

    asked on May 1, 2007
  21. physics

    A glass bottle of soda is sealed with a screw cap. The absolute pressure of the carbon dioxide inside the bottle is 1.80 x10^5pa. Assuming that the top and bottom surfaces of the cap each have an area of .0004M^2, obtain the magnitude of the force that the

    asked on April 8, 2007
  22. Solid Mensuration

    A closed cylindrical container 10 feet in height and 4 feet in diameter contains water with depth of 3 feet and 5 inches. What would be the level of the water when the tank is lying in horizontal position?

    asked on April 27, 2016
  23. Chemistry

    Is there a reaction between Sodium Acetate and Copper (II) Nitrate. If so, what is the balanced equation for it? Also, what type of reaction is it does it form a precipitate?

    asked on October 18, 2014
  24. Algebra 1

    4. Two consultants were hired by a company. The total consultant fees were $18,500. If one consultant had earned $500 less, each consultant would have been paid the same. How much was each consultant paid? 6. Five cars in a race all finished within 8

    asked on October 28, 2013
  25. physics

    a plane stops from 250 mph in 25 seconds. Calculate the planes acceleration

    asked on September 24, 2011
  26. Math/Trig

    Solve: sin2 x = cos2 x for 0 degrees is less than or equal to x is less than 360 degrees.

    asked on January 20, 2011
  27. Math/Trig

    Find the length of the intercepted arc with radius 2.5 cm and a central angle of 95degrees. Round your answer to the nearest tenth.

    asked on January 16, 2011
  28. Trigonometry/ Please Help

    Given sine of alpha=2/3 and cosine of alpha is less than zero, find the exact value of the other five trigonometric functions.

    asked on January 13, 2011
  29. Chemistry

    I need help with this problem: 50.0 mL of 4.4 g/L AgNO3 is added to a coffee-cup calorimeter containing 50.0 mL of 4.4 g/L NaI, with both solutions at 25°C. a).What is ΔTsoln (assume the volumes are additive and the solution has the density and

    asked on October 13, 2008
  30. finance management

    John Roberts has $42,180.53 in a brokerage account, and he plans to contribute an addtional $5,000.00 to the account at the end of the year. the brokerage account has an expected annual return of 12%. If John's goal is to accumulate $250,000.00 in the

    asked on January 10, 2008
  31. Math

    Jeff uses 3/5 size strips to model 3/5 he want to use 10ths side strips to model an equivalent fraction how many 10th size strips will he need

    asked on January 16, 2020
  32. Mathematics

    A game consists of drawing a number from 1□20 a player wins if the number drawn is either a prime number or a perfect square what is the probability of winning this game

    asked on January 7, 2020
  33. Math

    One of Kepler's three laws of planetary motion states that the square of the period, P, of a body orbiting the sun is proportional to the cube of its average distance, d, from the sun. The Earth has a period of 365 days and its distance from the sun is

    asked on September 22, 2019
  34. mtap

    the length of the diagonals are 3x+2 and 5x-8. find x

    asked on January 14, 2018
  35. Chemistry

    If your car gets 28 miles to the gallon, how many liters of gasoline are necessary to travel 157 km?

    asked on September 21, 2017
  36. Math

    How to solve 13.28 divided by 3

    asked on August 23, 2016
  37. Elementary Math

    The question stated: Write a numerator that makes the statement true. 1/2< /10 < 4/5 My answer is 7/10 am I correct< If not please explain. Thanks

    asked on February 1, 2016
  38. math

    How are the real solutions of a quadratic equation related to the graph of the quadratic function?

    asked on October 27, 2015
  39. Math

    When a number is a multiple of 6, what are the possible values for the ones digit?

    asked on December 3, 2014
  40. math

    If X = 4 units, Y = 11 units, and Z = 6 units, then what is the volume of the rectangular prism shown above

    asked on November 11, 2014
  41. Chemistry

    The synthesis of zinc iodide was performed using 1.8912g of zinc and 1.5965g of iodine. Determine the limiting reactant and calculate the theoretical yield of zinc iodide in grams.

    asked on October 7, 2014
  42. Chemistry AP

    What are the concentrations of benzoic acid and sodium benzoate in a solution that is buffered with a pH of 4.55 and has a freezing point of -2.0 degrees Celsius? (assume complete dissociation and a density of 1.01g/mL for the solution.)

    asked on February 5, 2014
  43. Physical Science

    5. What reactions occurs when a solution of hydrochloric acid, HCl, is mixed with a solution of calcium hydroxide, Ca(OH)2? (A) Cl + Ca(OH) --> HCa + Cl(OH)2 (B) HCl + Ca(OH)2 --> H(OH)2 + CaCl (C) 2HCl + Ca(OH)2 --> 2H2O + CaCl2 (D) 2HCl + Ca(OH)2 -->

    asked on October 16, 2013
  44. chemistry

    Calculate the amount of heat required to completely sublime 76.0g of solid dry ice (CO2) at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kJ/mol.

    asked on September 1, 2013
  45. Finance

    The most recent financial statements for Retro Machine, Inc., follow. Sales for 2010 are projected to grow by 20 percent. Interest expense will remain constant; the tax rate and the dividend payout rate will also remain constant. Costs, other expenses,

    asked on March 20, 2013
  46. Math/Trig

    Find the radius of a circle with a central angle of pi/7 and a length of the intercepted arc equal to 7.7 cm. Round your answer to the nearest tenth.

    asked on January 20, 2011
  47. Math/Trigonometry

    What is the angular displacement of 1.6 revolutions? Round to the nearest tenth.

    asked on January 14, 2011
  48. Trigonometry

    Verify the identity: cos x + sin x tan x = sec x.

    asked on January 13, 2011
  49. Trigonometry

    Given sinθ=0.76, find θ in degrees to the nearest tenth.

    asked on January 13, 2011
  50. Math/Trigonometry

    Convert 2pi/3 radians into degrees.

    asked on January 12, 2011
  51. Math/Trigonometry

    1. Solve: 2 cos² x - 3 cos x + 1 = 0 for 0 ≤ x < 2pi. 2. Solve: 2 sin x - 1 = 0 for 0° ≤ x < 360° 3. Solve: sin² x = cos² x for 0° ≤ x < 360° 4. Solve: sin x - 2sin x cos x = 0 for 0 ≤ x < 2p

    asked on January 12, 2011
  52. Math/Trig

    Find the length of the intercepted arc, given a central angle of 3pi/5 and a radius of 4.5 cm. Round your answer to the nearest tenth.

    asked on January 12, 2011
  53. Physics/math

    A deep mountain valley is separated by two vertical cliffs. One cliff is 600 meters high and the other is 400 meters high. A cable car runs from the foot of each cliff to the top of the other cliff. At what height above the ground do the two cable cars

    asked on September 18, 2010
  54. 7th grade Math

    Write and simplify an expression for the perimeter of the rectangle. side A=x+6 Side B=4x-5. Thank you!

    asked on September 12, 2010
  55. Statistics

    The mean IQ among members of a club is 118 with a standard deviation of 9.46. What percentage of the members had IQ scores of 115 or higher?

    asked on April 28, 2010
  56. finance management

    If you deposit money into your account that pays 6.5% interest, how long will it take for you to double your money?

    asked on January 10, 2008
  57. Algebra

    you are about to take a test that contain questions of type A worth 4 points and of type B worth 7 points. You must answer at least 5 of type A and 3 of type B, but time restricts answering more than 10 of either type. In total, you can answer no more than

    asked on November 12, 2007
  58. Physics

    A skier wears a jacket filled with goose down that is 15mm thick. Another skier wears a wool sweater that is 7.0mm thick. Both have the same surface area. Assuming the temperature difference between the inner and outer surfaces of each garment is the same,

    asked on April 13, 2007
  59. Physics

    A ceiling fan has two different angular speed settings: 1 = 475 rev/min and 2 = 170 rev/min. What is the ratio a1/a2 of the centripetal accelerations of a given point on a fan blade? Centripetal acceleration at a distance R and angular speed w is a = R

    asked on March 15, 2007
  60. Physics

    an automobile tire has a radius of 0.350M, and its center forward with a liner speed of v=13.0m/s. (a) Determine the angular speed of the wheel. (Assume that there is no slipping of the surfaces in contact during the rolling motion.) (b) Relative to the

    asked on March 14, 2007
  61. Math

    Walter and Brian each have a cd collection what is x the number of cds in Walters collections

    asked on October 14, 2019
  62. Chemistry

    An unknown substance decays from 14 g to 3 g over a period of 21 days.

    asked on September 24, 2019
  63. pre-calculus

    find the inverse of this function: y=log(p)+6

    asked on April 24, 2019
  64. precalculus

    find f(7) for: f(x)=square root(x)+5 if x>5 f(x)=6 if x

    asked on April 6, 2019
  65. Precalc

    What are two ways to evaluate end behavior of polynomials?

    asked on April 2, 2019
  66. pre calculus

    find rate of change for p^4-3p^3+500

    asked on November 4, 2018
  67. music

    it is common for a Baroque piece of music to? A: Slow down and speed up B: remain constant in tempo **** C: limit the amount of chords used D: be performed mainly on brass instruments. I chose B as my answer could someone please tell me if I am even close

    asked on January 29, 2018
  68. History

    Do you think Natural Rights have remained the same?

    asked on August 8, 2017
  69. history

    why would colonists resist the end of salutary neglect?

    asked on August 7, 2017
  70. Human Relations

    Give an example of a situation for which you think "Hey" is an inappropriate salutation and why ?

    asked on June 19, 2017
  71. science

    how do layers b and d compare in age? if rock layers between b and d have eroded away,what is the boundary between b and d called

    asked on May 5, 2017
  72. Science

    When are tides in the earth's oceans the highest

    asked on April 12, 2017
  73. Science

    Two ofthe inner planets ____?

    asked on March 27, 2017
  74. Chemistry

    "How many grams of the precipitate will form if 25.5 mL of 4.5 M solution of lead (II) nitrate is allowed to react with 35.5 mL of 3.0 M solution of potassium chloride? What is the concentration of the excess reactant after the reaction has reached

    asked on February 9, 2017
  75. Geometry

    Find the distance CD rounded to the nearest tenth. C=(7,-4) D=(-8,-5) CD=?

    asked on October 17, 2016
  76. chemisry

    What is the correct way to find an equilibrium constant for the dissolution of a specific chemical at various temperatures?

    asked on October 9, 2016
  77. L.A.

    Why should you avoid writing about too many events in a personal narrative? A.to avoid overwhelming the reader with too much info. B.to help you, the writer, stay on topic. C.to allow your self, the writer, room to add many details and descriptions. D. all

    asked on October 3, 2016
  78. algebra

    How can you represent the terms of a sequence explicitly? How can you represent them recursively?

    asked on February 23, 2016
  79. Maths

    The probability that I have to wait at the traffic lights on my way to school is 0.45. Find the probability that on 3 consecutive mornings I have to wait: A) Once B) Twice

    asked on February 14, 2016
  80. Physics

    A penguin has a mass of 13 kg. The penguin slides over the ice for a distance of 50.7 m in 1.7 s before coming to a complete stop. The penguin uniformly accelerates during the entire time period. What is the net force exerted on the penguin?

    asked on February 8, 2016
  81. computer

    You are having problems on your Windows 7 computer and you pull up Device Manager to see if there are any alerts. Two of your devices have yellow exclamation points over them. What does this most likely indicate? A. A missing driver B. A disabled device C.

    asked on January 19, 2016
  82. algebra 2

    How does writing equivalent equations help you solve a system of equations?

    asked on September 25, 2015
  83. algebra 2

    How can you model data with a linear function? can i have example to please

    asked on September 11, 2015
  84. algebra 2

    How can you model data with a linear function?

    asked on September 9, 2015
  85. Math

    Explain how knowing that 5 divided by 8 = 0.625 helps you the decimal for 4 5/8.

    asked on September 8, 2015
  86. check my work

    8. Which of the following is a successful result of the Reconstruction? (1 point) states could limit voting rights in elections more African Americans could go to school segregation kept the races apart or separate sharecropping helped poor blacks own land

    asked on September 2, 2015
  87. u.s. history

    11. Explain two ways in which sectionalism caused conflict or tension in the United States during the early 1800s. Then explain how sectionalism affects economics and politics in the United States today. (10 points)

    asked on September 1, 2015
  88. u.s. history

    Use the quote below to answer the following question. “[T]hese Powers . . . are so distributed among the Legislative, Executive, and Judicial Branches, into which the general Government is arranged, that it can never be in danger of degenerating into a

    asked on August 24, 2015
  89. u.s. history

    Why does George Washington support the Constitution? To what does “a Constitutional door is left open” refer?

    asked on August 24, 2015
  90. statistics

    Consider the events of drawing an ace, then draw another ace, followed by a queen, one at a time without replacement (from a standard deck of cards). What is the probability of drawing an ace, then another ace, then a queen? please show explanation

    asked on August 12, 2015
  91. math

    how do I write 6 2/3 + 3 4/5 to its simpliest form. This is how I did it. Could someone tell me if its write?. Or give me the proper steps to doing this? 6 2/3 + 3 4/5 = 20/15 + 19/15= 39/15= 2 9/15 = 2 3/5

    asked on August 8, 2015
  92. science

    Fan can accelerate from the starting blocks to running 11 m/s down the track in 5 seconds. What is her acceleration?

    asked on June 30, 2015
  93. math

    My digits are 6,0, and 5. I'm not divisible by 5. What number am I

    asked on June 18, 2015
  94. Statistics

    A Today/CNN/Gallup Poll of 1015 adults found that 13% approved of the job Congress was doing in 1995. Find the 95% confidence interval of the true proportion of adults who feel this way.

    asked on April 8, 2015
  95. chemistry to MathMate

    Chemistry - CJ, Tuesday, March 31, 2015 at 10:53pm I am experiencing a major block.... I can't say.... 1micrometer= 1000nm 5micrometer= x..... because I'll get back the same thing So please help me, tell me the answer please.

    asked on March 31, 2015
  96. Chemistry

    Chemistry - MathMate, Tuesday, March 31, 2015 at 2:56pm 1m = 1000 mm (millimeter) 1 mm = 1000 μm (micrometer) 1 μ = 1000 nm (nanometer) If the tube is 1 nm in diameter, then veryify that 5 μm = 5*1000 nm = 5000 nm = how many diameters? Chemistry -

    asked on March 31, 2015
  97. Chemistry

    Nanotubes are rolled up cylinders of graphite with diameters of about 1nanometer, and lengths in micrometers. (I) If a nanotube is 5 micrometers long, how many diameters does this represent?

    asked on March 31, 2015
  98. Geometry

    an architect designs a rectangular window such that the width of the window is 40 com less than the height. If the perimeter of the window is 500 cm, what are the widths and heights?

    asked on March 29, 2015
  99. math

    Two coworkers picked up some writing instruments at the office supply store. Shane selected 3boxes of pencils and 1box of pens, paying $8. Terrell spent $6 on 1box of pencils and 1box of pens. What's the equation for shanes total cost? Equation for Terrell

    asked on January 27, 2015
  100. Math

    Since 2007, a particular fund returned 13.8% compounded monthly. How much would a $4000 investment in this fund have been worth after 4 years?

    asked on January 11, 2015


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