Popular questions and responses by tasha
  1. Physics

    A dog searching for a bone walks 3.50 m south, then 8.20 m north of east, and finally 15.0 m west. (a) What is the magnitude of the dog's total displacement? (b) What is the direction of the dog's total displacement where directly east is taken as zero

    asked on February 8, 2012
  2. statistics

    "suppose that IQ scores have a bell-shaped distribution with a mean of 97 and standard deviation of 17.Using empirical rule, what percentage of IQ score are less than 46?"

    asked on September 8, 2013
  3. Basic Chemistry

    What is the pressure of 64.0 g of oxygen gas in a 1.50-L container at -37°C a. 4.12atm b. 51.6atm c. 19.6atm d. 8.2atm

    asked on December 5, 2011
  4. Math

    What's the common factors of 10ab and 15a

    asked on December 7, 2016
  5. AP chemistry

    A 28 g sample of iron ore is treated as follows. The iron in the sample is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 19.5 g. What was the mass of iron in the sample of ore? Answer in units of g.

    asked on August 3, 2010
  6. Trigonometry

    Simplify the expression using trig identities: 1. (sin4x - cos4x)/(sin2x -cos2x) 2. (sinx(cotx)+cosx)/(2cotx)

    asked on July 15, 2012
  7. math

    what is the ratio of the number of seconds in a day to the number hours in a day

    asked on August 24, 2012
  8. math

    A spherical baloon expands when it is taken from the cold outdors to the inside of a warm house. if its suface area increases 16%, by what percentage does the radius change

    asked on August 24, 2012
  9. Math

    Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and prepreview ads before the movie starts. Many complain that the time devoted to previews is too long. A preliminary sample

    asked on April 2, 2019
  10. children's literature

    two types of biographies are:

    asked on June 6, 2013
  11. Health Care Administration

    A Health Care Administrator has been hired by an, Ambulatory health care setting. What should the health care administrator expect to encounter in this type of health care setting, and how would the health care deal with issues or the different encounters

    asked on March 4, 2012
  12. math

    a bin contains seven red chips, nine green chips, three yellow chips, and six blue chips. Whats the probability od drawing a red chip, replacing it, then drawing a blue chip

    asked on March 15, 2009
  13. science

    What is the speed of an 800-kg car whose KE is 250 kJ? Use the formula KE = (1/2) M V^2 Rearrange it to solve for V. You'll need to take a square root along the way.

    asked on February 19, 2007
  14. Statistics

    A bag contains 8 red marbles 4 blue marbles and 1 green marbles. Find p(not blue)

    asked on November 13, 2016
  15. Math

    Bob's frog can travel 6 inches per jump, Kim's frog can travel 9 inches, and Jack's frog can travel 13 inches. If the three frogs start off at point 0 inches, how many inches will it be to the next point that all three frogs touch?

    asked on February 27, 2010
  16. chemistry

    Based on the following chemical equation, answer the questions below. Show all your calculation The balanced chemical reaction of iodine with hydrogen sulfide is as follows: H2S(g)+I2(s)-----2HI(g) + S(s) (a) Based on the above chemically balanced

    asked on October 19, 2012
  17. Accounting

    1. The price of a bond is equal to the sum of the interest payments and the face amount of the bonds. 1. True 2. False 2. When a corporation issues bonds, it executes a contract with the bondholders, known as a bond debenture. 1. True 2. False 3. A

    asked on July 25, 2010
  18. Math

    Determine whether or not the first number is divisible by the second number 10,199; 3

    asked on October 24, 2017
  19. Algebra

    If (c) were f(k)=-4/k+7, what value of k would be excluded from the domain?

    asked on November 25, 2015
  20. MATH

    If the sales tax on an item is 7%, the sales tax on an item costing d dollars can be found by the expression .07d. Determine the sales tax on a compact disk that cost $15.99.

    asked on February 23, 2013
  21. chemistry

    Four identical 1.0-L flasks contain the gases He, Cl2, CH4, and NH3, each at 0°C and 1 atm pressure. Which gas sample has the greatest number of molecules?

    asked on October 27, 2010
  22. Math

    How many triangles are in a polygon whose sum of its interior angles is 1080°.

    asked on September 16, 2018
  23. physics

    when a tennis ball is served, it is a contact with the racket for a time that is typical 0.005 seconds. find the force needed to serve a 60.0 gram tennis ball moving with a velocity of 30.0m/s

    asked on November 14, 2017
  24. science

    When hydrochloric acid reacts with sodium sulfide, hydrogen sulfide gas and sodium chloride are produced. How many moles of H2S will be generated by 2.56 moles of HCl? 2HCl + Na2S → H2S + 2NaCl

    asked on January 26, 2017
  25. Strategic Management

    A multidomestic strategy is similar to a transnational strategy. True or False?

    asked on October 2, 2016
  26. spanish

    I need help on writing five paragraph on why i like spanish

    asked on February 2, 2016
  27. math

    Sam Seller offers credit at 19% interest per year.

    asked on April 12, 2014
  28. Math

    In one year, Melinda grew 2 1/4 inches to 48 3/8. What was her height at the beginning of the year?

    asked on February 19, 2013
  29. math

    Can someone assit me with my two math problems Assume that the salaries of elementary school teachers in the united states are normally distributed with the mean of 36,000 and a standard deviation of 6,000. What is the cut off salary for teachers in the

    asked on April 18, 2010
  30. mathematics

    Squareroot of (0.0256/25) giving your answer in standard form. Is the ans (0.0256/25)= 0.001024 Squareroot of 0.001024 = 0.032

    asked on June 13, 2009
  31. History

    were can I find information about this question? The exploration and settlement of the American continents by Europeans initiated contact between Europeans, Native Americans, and slaves brought from Africa. How did these diverse interactions affect each

    asked on April 30, 2009
  32. Geometry

    Can the Isosceles Triangle Theorem be written as a biconditional? If yes, rewrite it as one, if no, explain why not.

    asked on January 18, 2008
  33. Chem

    Choose the member of each set that you would expect to be more soluble in water. Explain your answer. Chloroform, CH3Cl, or hydrogen chloride. My gut instinct was HCl, however I'm not sure why [or if] it's more soluble than CH3Cl. Of course HCl is more

    asked on March 20, 2007
  34. science

    How long will it take a 1000-kg car with a power output of 20 kW to go from 10m/s to 20 m/s? Ignoring friction, the change in kinetic energy has to equal Power*time

    asked on February 19, 2007
  35. government

    A statement of personal belief or judgement

    asked on June 10, 2020
  36. Math

    The vertical angle of a cone is 60°and its slant height is 30cm. Find the radius of the base

    asked on September 16, 2018
  37. math

    Ms. Bran brought 36 muffins to school. They were equally packed into 4 boxes. How many muffins were in each box?

    asked on November 10, 2015
  38. Chemistry

    Please help!! If the density of fresh water at 4 degrees Celsius is 1.00g/mL, determine if the following objects will sink or float in water. 1.) A 200 feet (61m) tall pine tree that weighs 11,200 pounds (5,080 kg) and has a density of 0.88g/mL 2.) One

    asked on February 12, 2015
  39. algebra

    The atmospheric pressure P in pounds per square inch (psi) is given by P = 14.7 e−0.21 a where a is the altitude above sea level (in miles). If a city has an atmospheric pressure of 12.21 psi, what is its altitude? (Recall that 1 mi = 5,280 ft. Round

    asked on May 23, 2014
  40. finance

    if tiny tots has a outstanding debt currently selling for 800 per bond. it matures in 20 years pays interest annually and has 14% coupon rate par is 1,000, what is the after tax cost of the debt?

    asked on September 4, 2013

    You are a marketing manager interviewing for a new job at several different firms simultaneously. You expect to be asked the same questions in each interview dealing with what you think are some good new marketing opportunities for each firm to pursue. You

    asked on August 11, 2013
  42. physics

    In one of Michelson's experiments, a beam from a revolving mirror traveled 12 km to a stationary mirror. How long a time interval elapsed before the beam returned to the mirror?

    asked on April 25, 2013
  43. Chemistry

    the following acid—base neutralization reaction HNO3 (aq)+ KOH (aq) --KNO3(aq) + H2O (I) What is the molarity (M) of an HNO3 solution if 50.0ml is needed to react with 25.0ml of 0.150M KOH solution?

    asked on October 20, 2012
  44. Chemistry

    In the following acid—base neutralization reaction HNO3(aq)+ KOH(aq) ----KNO3(aq) + H2O (I) What is the molarity (M) of an HNO3 solution if 50.0 ml is needed to react with 25.0 ml of 0.150M KOH solution?

    asked on October 19, 2012
  45. world history

    How did powerful families of Japan like the Fujiwara legitimate their power at court

    asked on November 3, 2011
  46. world history

    Which group forced the Chinese to acknowledge their claim to the mandate of heaven and sign a treaty in 1127 C.E

    asked on November 3, 2011
  47. world history

    In the eleventh and twelfth centuries, the Song Dynasty had all of the following characteristics except

    asked on November 3, 2011
  48. Early childhood education

    define thematic fantasy role play,play tutoring,positive peace,situational violence

    asked on June 22, 2011
  49. Managerial Economics

    A)Who has more monopoly power---Wal-Mart or the concessionaire who has acquired the franchise to sell beer, hot dogs, colas, candy, etc., at a Washington Redskins football game? Explain. B)Who has more monopsony power---Wal-Mart or teams in the National

    asked on March 8, 2011
  50. Algebra 1

    If Soybean is 12% protein and Corn is 6% protein. How much of both will equal 240lbs that is 10% protein?

    asked on October 31, 2010
  51. Microeconomics

    Combination Health Care All Other Goods A 0 100 B 25 90 C 50 70 D 75 40 E 100 0 b. What is the opportunity cost of combination C? c. Suppose a second nation has the following data. Plot the PPC, and then determine which nation has the comparative advantage

    asked on October 17, 2010
  52. math

    Suppose that the width of a rectangle is 5 inches shorter than the length and that the perimeter of the rectangle is 50 inches. The formula for the perimeter of a rectangle is P=2L+2W. a) Set up an equation for the perimeter involving only L, the length of

    asked on May 11, 2010
  53. physics

    the speed of a transverse wave on a string is 450 m/s while the wavelength is .18m. the amplitude of the wave is 2mm how much time is required for a particle of the string to move through a total distance of 1km

    asked on April 25, 2010
  54. adult education

    if researchers were studying the effects of teaching methods on patient learning outcomes how must they word the research question to use t-test for statistical differences?

    asked on April 22, 2010
  55. math

    Following are three sets of letters. Draw one letter from Set 1 and place it in Set 2. Then draw one letter from Set 2 and place it in Set 3. Finally, draw a letter from Set 3. What is the probability that the last letter drawn is a B? B C B B B B Set 1

    asked on April 5, 2010
  56. math

    Following are three sets of letters. Draw one letter from Set 1 and place it in Set 2. Then draw one letter from Set 2 and place it in Set 3. Finally, draw a letter from Set 3. What is the probability that the last letter drawn is a B? B C B B B B Set 1

    asked on April 5, 2010
  57. algebra

    Cole's two student loans totaled $31000. One of his loans was at 2.8% simple interest and the other at 4.5%. After one year, Cole owed $1024.40 in interest. What was the amount of each loan?

    asked on March 19, 2010
  58. math

    Paul read 20 pages of a book in 15 minutes. (a) What is Paul’s reading rate of pages per minute? (b) If he continues to read at the same rate, how many pages will he read in 1 hour?

    asked on December 8, 2009
  59. anthropology

    There are anthropological links between social science and natural science

    asked on August 4, 2009
  60. com 150

    brainstorming and brain mapping

    asked on October 8, 2008
  61. Physics

    An apartment has a living room whose dimensions are 2.5 m 4.8 m 5.9 m. Assume that the air in the room is composed of 79% nitrogen (N2) and 21% oxygen (O2). At a temperature of 27°C and a pressure of 1.01 105 Pa, what is the mass (in grams) of the air?

    asked on April 28, 2008
  62. Physics

    In an automatic clothes drier, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.39 m), as the drawing shows. The appliance is designed so that the clothes tumble gently as they dry. This means that when a piece of clothing reaches an

    asked on April 3, 2008
  63. Physical Science

    If you are given the density and the mass, how do you get the volume?

    asked on November 29, 2007
  64. science

    A crane whose motor has a power input of 5.0 kW lifts a 120-kg load of bricks through a height of 30m in 90s. what is the efficiency of the crane, which is the ratio between its output power and its input power.

    asked on February 19, 2007
  65. science

    How much work is needed to raise a 110-kg load of bricks 12m above the ground to a building under construction? According to the law of conservation of energy, the work required equals the change in potential emergy. To get the increase in potential

    asked on February 19, 2007
  66. accounting

    One of the adjustments for the worksheet says: * Of the $25 369.20 shown on the trial balance under Materials Used, $2 850 is still on hand and unused. Therefore I credited Materials Used by $2 850.. but which account do I debited because there is no

    asked on January 20, 2007
  67. Physics

    In a sound wave in air, the adjacent rear faction and cooperation are separated by a distance of 17m. If the velocity of the sound is 340ms, determine the frequency

    asked on March 3, 2020
  68. math

    A club has 5 members. From these members, the positions of president, vice-president, and treasurer have to be filled. In how many different ways can these positions be filled

    asked on July 1, 2019
  69. Math

    Given a triangle abc such that

    asked on September 16, 2018
  70. Math

    In a math class, students can take either algebra or geometry or both. If there are 50 students in the class and 35 take geometry, while 28 take algebra, how many students take both?

    asked on September 16, 2018
  71. Math

    6 lumberjacks can cut down 15 mahogany trees in 2 hours. How much longer will it take 8 lumberjacks to cut down 35 trees working at the same rate

    asked on September 16, 2018
  72. chemistry

    What is the empirical formula of a compound that contains two moles of calcium, two moles of sulfur and eight moles of oxygen? A. CaS0 B. CaS02 C. CaSO4 D. Ca2S0 i think D

    asked on May 14, 2018
  73. Math

    x + y = 21 what can be the smallest integer for positive xy

    asked on January 27, 2018
  74. Math

    lucy has 77 blank recipe cards. she divided her recipe box intpo 9 sections. if 5 sections have 1 more card than all the other sections, how many cards are in each section?

    asked on November 28, 2017
  75. Math

    our credit card has a balance of ​$5800 and an annual interest rate of 18 ​%. You decide to pay off the balance over three years. If there are no further purchases charged to the​ card, a. How much must you pay each​ month? b. How much total

    asked on November 14, 2016
  76. Math

    Quadrilateral abcd has vertices A(1,1) B(3,5) C(4,7) D(2,6). In what quadrant is abcd located?

    asked on August 18, 2016
  77. Calc

    Hello everyone! Could you please help me with this one, I do not even know where to begin D: Show that of all isosceles triangles with two equal sides L and L, the one with the largest area is the one whose two equal sides are perpendicular. The only thing

    asked on August 11, 2016
  78. English

    The question is what is the subject of the poem (Incident in a rose garden) I say it's death. Is this right?

    asked on February 4, 2016
  79. math

    A circular pool 2 meters in diameter is in the middle of a 5 meter by 5 meter square of gravel.What is the area actually covered by gravel?

    asked on November 21, 2015
  80. math

    estimate the product. choose a method. 63×19

    asked on November 18, 2015
  81. Us history

    "Yellow journalism" during the late 19th century was marked by A) a decrease in readership B) over reliance on fossil evidence C) a decline of popularity of radio D) sensational headlines in questionable

    asked on November 17, 2015
  82. Business Law

    You are the chief executive officer of Money Games Inc. (MGI), which has begun to market Borrow & Spend, a video game set in the world of finance. To buy ads, MGI borrows 50,000 from First Saving Bank. On MGI’s behalf, you signed a note for the loan and

    asked on June 8, 2015
  83. physics

    2. An object is 20.0 cm from a converging lens, and the image falls on a screen. When the object is moved 4.00 cm closer to the lens, the screen must be moved 2.70 cm farther away from the lens to register a sharp image. Determine the focal length of the

    asked on April 30, 2015
  84. science

    The analysis of lead (Pb) in a sample of solder was carried out using atomic absorption spectroscopy as follows. 1.013 g of solder was completely dissolved in a small volume of nitric acid and the solution made up to 1.000 L with distilled water. A 50.0

    asked on April 4, 2015
  85. Mat104

    ind the future value, using the future value formula and a calculator. (Round your answer to the nearest cent.) $955 at 5.5% compounded quarterly for 3 years

    asked on February 9, 2015
  86. Math

    1/27 + 1/9 + 1/3 + ... + 81 I know the series is geometric. d = 1/3 Multiplying each by 1/3 to get the next value do i use the sum of geometric series a(1-r^n)/ 1-r

    asked on December 12, 2014
  87. chemistry

    Consider the reaction between 52.0 mL of liquid ethanol (C2H5OH; density = 0.789 g/mL) and 25.4 L of O2 at 27.0°C and a pressure of 1.65 atm. The products of the reaction are CO2(g) and H2O(g). Calculate the number of moles of H2O formed if the reaction

    asked on November 9, 2014
  88. business finance

    please point me in the right direction to begin. Thanks! Your small business needs to buy new office furniture for your new headquarters. You have the option of leasing the furniture, or buying the furniture. You can purchase the furniture for $15,000 per

    asked on September 15, 2014
  89. business finance

    I am in need of some major help. Your small business needs to buy new office furniture for your new headquarters. You have the option of leasing the furniture, or buying the furniture. You can purchase the furniture for $15,000 per year, or lease the same

    asked on September 15, 2014
  90. Reading

    In Regarding Pain of Others, what does that title suggest about the nature of the inquiry Sontag will make? In what ways does it capture the essence of Sontag's point? In what ways did it fail to do this?

    asked on September 3, 2014
  91. Physics

    Can someone explain the magnitude and direction of the acceleration of a ball moving upward, downward,and at the highest point? a=g

    asked on June 8, 2014
  92. math

    Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.42 cross 10−5 watts/cm2

    asked on May 23, 2014
  93. chemistry

    how many grams of hydrogen are needed to completely react with 8 moles of nitrogen from this equation N2+H2=NH3

    asked on April 28, 2014
  94. math

    The account balance on April 1st is $50.51. On April 15th a payment of $15.00 is made. On April 25th a purchase of $19.27 is made. What is the finance charge if the annual rate is 18%?

    asked on April 12, 2014
  95. operating system

    A database structure can be changed by?

    asked on October 8, 2013
  96. maths

    when the depth of liquid in a container is x cm, the volume of the liquid is x(x^2+25) cm^3. Liquid is added to the container at a constant rate of 2 cm^3/s. Find the rate of change of the depth of the liquid at the instant when x=1

    asked on October 3, 2013
  97. social studies

    determine the capitol budgeting in global business

    asked on October 1, 2013
  98. Math

    As a means of getting exercise, you choose from going for a run, riding your bike or going for a swim. Your previous behavior shows that you bike 30% of the time and swim 15% of the time. What is the probability that the next time you exercise you will go

    asked on July 11, 2013
  99. Math.

    On any given day, there is a 30% chance that Jenny will wear jeans. If she wears jeans, there is a 60% chance that she will wear a t-shirt. A) determine the probability that Jenny wears jeans and a t-shirt on any given day. B)determine the probability that

    asked on July 11, 2013
  100. children's literature

    literature can help learn to clarify problems and:

    asked on June 8, 2013


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