vanessa

Popular questions and responses by vanessa
  1. English

    Write a debate on the topic;Boys should not help in the kitchen.Speak for or against the motion.

    asked on August 14, 2012
  2. Physics

    A box rests on a rough board 10.0meters long. When one end of the board is slowly raised to a height of 6.0meters above the other end, the box begins to slide. 1. What is the coefficient of static friction? 2. Once you have claculated the coefficient of

    asked on February 28, 2018
  3. history

    which describes the most accurate reason why oil wealth affects the stability of the middle east? a. wealthier middle eastern countries are able to use their oil profits to fund armies for self-defense. b. middle eastern nations with unlimited oil/fuel

    asked on July 11, 2019
  4. CHEM 2

    A 23.0% by mass LiCl solution is prepared in water. What is the mole fraction of the water?

    asked on May 10, 2016
  5. Calculus

    A population of 500 E. coli bacteria doubles every 15 minutes. Use this information to find an expression for this population growth. Using this expression, find what the population would be in 87 minutes. Use an exponential model. so we're supposed to use

    asked on July 14, 2008
  6. statistics (10)

    Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,000 and $45,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. What

    asked on April 23, 2014
  7. statistics

    Suppose a random sample of size 50 is selected from a population with σ = 10. Find the value of the standard error of the mean in each of the following cases (use the finite population correction factor if appropriate). a. The population size is infinite

    asked on April 15, 2014
  8. Math

    The College Board reported the following mean scores for the three parts of the Scholastic Aptitude Test (SAT) (The World Almanac, 2009): Assume that the population standard deviation on each part of the test is = 100. a. What is the probability a sample

    asked on April 16, 2014
  9. Math

    A radioactive substance decays according to the formula Q(t) = Q0e−kt where Q(t) denotes the amount of the substance present at time t (measured in years), Q0 denotes the amount of the substance present initially, and k (a positive constant) is the decay

    asked on April 6, 2014
  10. Calculus

    For the function ƒ(x) = x2 find the slope of secants from the point (2, 4) to each of the following points. (3, __ ) (2.5 , __ ) (2.1 , __ ) (2.01, __ ) (2.001, __ ) Using the pattern from question 1, what do you think the slope of a tangent at the point

    asked on July 10, 2008
  11. Science

    1. Calculate the temperature of the parcel at the following elevations as it rises up the windward side of the mountain: (a) 1000 __*F (b) 3000 °C (c) 6000 °C

    asked on November 25, 2011
  12. Math

    The growth rate of Escherichia coli, a common bacterium found in the human intestine, is proportional to its size. Under ideal laboratory conditions, when this bacterium is grown in a nutrient broth medium, the number of cells in a culture doubles

    asked on April 6, 2014
  13. stats

    Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A’s to the top 10% of students, B’s to the next 25%, and C’s to the next 42%. a.) what is the bottom cutoff for a C

    asked on April 25, 2016
  14. Language

    What is the rhyme scheme of the above lines? A. abab B. aabb C. aabc•• D. abaa Correct me if I'm wrong!! The Assyr come down like a wolf on the fold, And his cohorts were gleaming in purple and gold. And the sheen of their spears was like stars on the

    asked on February 1, 2016
  15. financ

    All techniques with NPV profile- mutually exclusive projects. Projects A and B, of equal risk. Are alternatives for expanding Rosa Company’s capacity. The firm’s cost of capital is 13%. The cash flows for each project are shown in the following table.

    asked on January 4, 2012
  16. statistics

    A simple random sample of 40 items resulted in a sample mean of 25. The population standard deviation is 5. a. What is the standard error of the mean (to 2 decimals)? b. At 95% confidence, what is the margin of error (to 2 decimals)?

    asked on April 21, 2014
  17. Statistics 2

    In Hamilton County, Ohio the mean number of days needed to sell a home is 86 days (Cincinnati Multiple Listing Service, April, 2012). Data for the sale of 40 homes in a nearby county showed a sample mean of 80 days with a sample standard deviation of 20

    asked on September 24, 2014
  18. Math

    Phosphorus-32 (P-32) has a half-life of 14.2 days. If 200 g of this substance are present initially, find the amount Q(t) present after t days. (Round your growth constant to four decimal places.) How fast is the P-32 decaying when t = 21.5? (Round your

    asked on April 6, 2014
  19. Math

    Which statements are always true about regular polygons? Select all that apply. All sides are congruent •• Pairs of sides are parallel All angles are congruent •• All angles measure 90 degree Correct me if I'm wrong!!

    asked on February 5, 2016
  20. Math

    Carlota Music Company estimates that the marginal cost of manufacturing its Professional Services guitars in dollars/month by the following. This model assumes that the level of production is x guitars/month. C '(x) = 0.007x + 130 The fixed costs incurred

    asked on April 9, 2014
  21. Statistics Emergency please

    People end up tossing 12% of what they buy at the grocery store (Reader's Digest, March 2009). Assume this is the true population proportion and that you plan to take a sample survey of 540 grocery shoppers to further investigate their behavior. a)What is

    asked on April 17, 2014
  22. Physics

    What acceleration would a 35 KG box have if we pushed it with a force of 275 N across a surface that has a coefficient of friction of .7?

    asked on December 14, 2017
  23. probability

    In a shipment of 11 CD players, two are defective. Find the probability that a sample of 3 CD players will contain no more than one defective one.

    asked on June 18, 2011
  24. Geometry

    Which statement is true? A. All squares are rectangles. B. All quadrilaterals are rectangles. C. All parallelograms are rectangles. D. All rectangles are squares. I thought it was B.

    asked on August 11, 2014
  25. statistics

    The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of 50 business travelers is selected and each traveler

    asked on April 21, 2014
  26. Math

    Based on a preliminary report by a geological survey team, it is estimated that a newly discovered oil field can be expected to produce oil at the rate of R(t) = 300t^2/(t^3 + 32)+5 (0 ≤ t ≤ 20) thousand barrels/year, t years after production begins.

    asked on April 14, 2014
  27. Math

    Skeletal remains had lost 84% of the C-14 they originally contained. Determine the approximate age of the bones. (Assume the half life of carbon-14 is 5730 years. Round your answer to the nearest whole number.)

    asked on April 5, 2014
  28. multiplied

    when 2.49 is multiplied by 0.17, the result rounded to 2 decimal places is? a 0.04 b 0.42 c 4.23 d .423 e .40

    asked on April 10, 2013
  29. Chemistry

    If 75 g of ice at 0.0 C were added to 1.5 L of water at 75 C, what would be the final temperature of the mixture?

    asked on November 22, 2010
  30. Statistics PLEASE HELP ME!

    The Wall Street Journal reported that automobile crashes cost the United States $162 billion annually (The Wall Street Journal, March 5, 2008). The average cost per person for crashes in the Tampa, Florida, area was reported to be $1599. Suppose this

    asked on April 22, 2014
  31. Spanish

    CHECK? ANswers on bottom: A. Choose the correct preterite tense conjugation. t� (dar) das dabas diste B. Choose the correct imperfect tense conjugation. las gatas (ir) iban van fueron C. Choose the correct preterite tense conjugation. Juan (dormir)

    asked on December 17, 2012
  32. Accounting 7

    Job 31 has a direct materials cost of $300 and a total manufacturing cost of $900. Overhead is applied to jobs at a rate of 200 percent of direct labor cost. Use the relationships among total manufacturing costs, conversion cost, and prime cost to

    asked on September 9, 2014
  33. Chemistry

    Naturally occurring cobalt consists of only one isotope, 59Co, whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt, 60Co, relative atomic mass 59.9338, is used in radiation therapy for cancer. A 1.8276g sample of cobalt has an

    asked on September 3, 2014
  34. phys science

    1. speed is the ratio of the distance an object moves to a. the amount of time needed to travel the distance** b. the direction the object moves c. the displacement of an object d. the motion of the object 2. a car traveled 60 km in 2 hours, 84 km in the

    asked on January 9, 2018
  35. Algebra

    A total of 556 tickets were sold for the school play. They were either adult tickets or student tickets. There were 56 more student tickets sold than adult tickets. How many adult tickets were sold?

    asked on September 4, 2017
  36. Chemistry

    mass of empty flask with stopper = 32.634 g mass of flask with water and stopper = 59.479 g density of the water = 0.9973 g/cm^3 mass of water = 26.845 g volume of water = 26.918 cm^3 the flask is then emptied and an unknown substance is added mass of

    asked on October 16, 2007
  37. Technology

    In Which of the following ways can you use test taking tips help you ? You can focus on the information that you need to study •• You will see the answers to the test You will study more You will be less organized Correct me if I'm wrong

    asked on February 2, 2016
  38. Math

    The average student enrolled in the 20-wk Court Reporting I course at the American Institute of Court Reporting progresses according to the rule below where 0 t 20, and N'(t) measures the rate of change in the number of words/minute dictation the student

    asked on April 9, 2014
  39. statistics

    For a t distribution with 16 degrees of freedom, find the area, or probability, in each region. a. To the right of 2.120. (Use 3 decimals.) b. To the left of 1.337. (Use 2 decimals.) c. To the left of -1.746. (Use 2 decimals.) d. To the right of 2.583.

    asked on April 21, 2014
  40. tempertaure question

    the temperature at 8:00am was -6*C. By noon, the temperature had risen by 13*C. what was the temperature at noon? a.-20* b.-6* c.7* d.13* e.other

    asked on April 10, 2013
  41. finance

    10. A firm has a beta of 1.2. The market return equals 14 percent and the risk-free rate of return equals 6 percent. The estimated cost of common stock equity is _____ percent. (Please calculate the arithmetic solution and show your work)

    asked on January 11, 2012
  42. URGENT, Calculus!

    A science project studying catapults sent a projectile into the air with an initial velocity of 30 m/s. The formula for distance (s) in meters with respect to time in seconds is s = -4.9t2 + 30t. Find the instantaneous rate of change (and thus the velocity

    asked on July 10, 2008
  43. statistics

    The College Board reported the following mean scores for the three parts of the Scholastic Aptitude Test (SAT) (The World Almanac, 2009): Assume that the population standard deviation on each part of the test is = 100. a. What is the probability a sample

    asked on April 15, 2014
  44. calculus

    A particle is moving along the x- axis so that its velocity at any time t ≥0 is give by v(t) = (2 pi - 5)t - sin(pi t) A. Find the acceleration at ay time t. B. Find the minimum acceleration of the particle over the interval [0,3]. C. Find the maximum

    asked on January 4, 2013
  45. Language

    which of the following answer choices contains a metaphor a.his skin was sandpaper •• b. the sun sparked like a diamond c.she wanted to be like the birds and fly away d. they felt free when they ran Correct me

    asked on February 1, 2016
  46. math

    A samll bar of gold measures 40 mm by 25 mm by 2 mm. One cubic millimeter of gold weighs about 0.0005 ounce. Find the volume in cubic millimeters and the weight in ounces of this small bar of gold. Thank you!

    asked on April 28, 2015
  47. math (8)

    Find the area of the region enclosed by these graphs and the vertical lines x = 3 and x = 5 f(x)=x^2+5 g(x)=1

    asked on April 24, 2014
  48. statistics

    Collina’s Italian Café in Houston, Texas, advertises that carryout orders take about 25 minutes (Collina’s website, February 27, 2008). Assume that the time required for a carryout order to be ready for customer pickup has an exponential distribution

    asked on April 9, 2014
  49. Calculus

    The captain of a ship at sea sights a lighthouse which is 260 feet tall. The captain measures the the angle of elevation to the top of the lighthouse to be 21. How far is the ship from the base of the lighthouse?

    asked on October 18, 2011
  50. physics

    A jewel thief decides to hide a stolen diamond by placing it at the bottom of a crystal-clear fountain. He places a circular piece of wood on the surface of the water and anchors it directly above the diamond at the bottom of the fountain, as shown below.

    asked on May 16, 2007
  51. statistics

    Assume a binomial probability distribution has p = .60 and n = 200. c. What is the probability of 100 to 110 successes (to 4 decimals)? d. What is the probability of 130 or more successes (to 4 decimals)?

    asked on April 6, 2014
  52. World History

    City-States Essay Assignment In what ways were the Indus Valley people an advanced civilization? In what ways did their civilization compare to an advanced modern civilization today? How is this? The Indus Valley people had great architectures. The yearly

    asked on August 17, 2013
  53. math

    an adult whale weighs 120 tons. a baby blue whale weighs 1/40 of the weight of the adult blue whale. how many pounds does the baby blue whle weigh?

    asked on March 17, 2013
  54. Grade 10 Math

    The Brooklyn Bridge in New York City is a suspension bridge that crosses the East River and connects Brooklyn to the island of Manhattan. If the origin is placed at the top of one of the cable suport towers, as shown, the shape of a cable that supports the

    asked on February 3, 2013
  55. calculus

    consider g(x)= {a sin x + b, if x ≤ 2pi} {x^2 - pi x + 2, if x > 2pi} A. Find the values of a a b such that g(x) is a differentiable function. B. Write the equation of the tangent line to g(x) at x = 2pi. C. Use the tangent line equation from part B to

    asked on January 4, 2013
  56. Math

    Quadrilateral PQRS has vertices P(0,6), Q(-6,-2), R(2,-4), and S(4,2). Verify that the quadrilateral formed by joining the midpoints of the sides of PQRS is a parallelogram.

    asked on October 19, 2012
  57. Math

    Right triangle ABC is similar to triangle XYZ. If the length of side AB is 30 inches, the length of side BC is 60 inches, and the length of side YZ is 10 inches, what is the length of side XY? A.4 B.7 C.6 D.none of above

    asked on March 17, 2012
  58. Science

    Which statement about subatomic particles is NOT true? A.) Protons and neutrons have almost the same mass. B.) Protons and electrons have opposite charges. C.) Unlike protons and electrons, neutrons have no charge. D.) Protons and neutrons have the same

    asked on December 18, 2011
  59. Physics

    A tennis ball is thrown vertically upward with an initial velocity of +7.0 m/s. What will the ball’s velocity be when it returns to its starting point? The acceleration of gravity is 9.81 m/s^2. Answer in units of m/s AND How long will the ball take to

    asked on September 21, 2011
  60. FP/101

    Which of the following is considered an advantage of home ownership? A. You are responsible for all repairs and maintenance. B. Interest paid on the mortgage of your home is tax deductible. C. Mortgage payments are always lower than rent payments. D.

    asked on November 21, 2010
  61. physics

    a driver in a car traveling at a speed of 21.8 m/s sees a cat 101m away on the road. How long will it take for the car to accelarate uniformly to a stop in exactly 99m?

    asked on September 23, 2010
  62. CHEMISTRY

    Hello, I am having trouble balancing this redox reaction WITHOUT using the half-reaction method. I believe this is because not all of the elements are in (aq). BrO3-(aq) + N2H4(g) --> Br-(aq) + N2(g) Br is reduced by a factor of 6. N is oxidized by a

    asked on April 21, 2010
  63. Chemistry

    rank the compounds below in order of increasing vapor pressure at 298 K? A) c3h6 B) c4h8 C) c5h10

    asked on December 12, 2016
  64. Language

    which category best describes the following sentence? Can kangaroos walk on all four legs? A) declarative B) Interrogative •• C)imperative D)exclamatory Correct me if I'm wrong!!

    asked on February 3, 2016
  65. math

    A quart of paint will cover 3/4 of a wall . how many quarts are required to cover four walls of the same size

    asked on July 1, 2015
  66. statistics; emergency please help me

    Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals). c. P(z -1.5) d. P(z -2.5)

    asked on April 8, 2014
  67. Math

    The length (in centimeters) of a typical Pacific halibut t years old is approximately f(t) = 190(1 − 0.955e−0.25t). (b) How fast is the length of a typical 9-year-old Pacific halibut increasing? cm/yr (c) What is the maximum length a typical Pacific

    asked on April 7, 2014
  68. finance

    28. Ag Silver Mining, Inc. has $500,000 of earnings before interest and taxes at the year end. Interest expenses for the year were $10,000. The firm expects to distribute $100,000 in dividends. Calculate the earnings after taxes for the firm assuming a 40

    asked on January 12, 2012
  69. physics

    A car of mass m1 = 2000.0kg is moving at speed v1i = 20.0m/s towards East. A truck of mass m2 = 5000.0kg is moving at speed v2i = 10.0m/s towards North. They collide at an intersection and get entangled (complete inelastic collision). 1. What is the

    asked on April 4, 2018
  70. Physics

    A golfer takes two strokes to putt a golf ball into a hole. On the first stroke, the ball moves 4.0m at an angle 60◦ East of North. On the second, it moves 3.0m at an angle 70◦ South of East. If the golfer had instead hit the ball directly into the

    asked on January 25, 2018
  71. science

    Two bulbs each of resistance 2.0 ohms are connected in parallel with a battery. Calculate the current flowing through any of the bulbs if the voltage of the battery is 0.2V

    asked on November 27, 2017
  72. Math

    What value of x will make the equation below true? 2x-6=3x+1-x-7

    asked on August 15, 2016
  73. Technology

    Which of the following is not an example of an Objective question? Multiple choice Essay True/false Matching•• Why is it important to recognize the key word in an essay question? It will provide the answer to the essay It will show you a friends answer

    asked on February 2, 2016
  74. Math

    What is the probability of getting either blue or freen on a spinner that is 3/10 green and 1/5 blue? I added 3 and 1 and got 4. So is my answer 4/10 ?

    asked on October 9, 2015
  75. Accounting 8

    The following information is available for Walker Industries: Beginning work in process inventory $30,000 Ending work in process inventory $25,000 Cost of goods manufactured $180,000 Compute total current manufacturing cost?

    asked on September 9, 2014
  76. *math (6)

    The quantity demanded x (in units of a hundred) of the Mikado miniature cameras per week is related to the unit price p (in dollars) by p = −0.2x^2 + 220 and the quantity x (in units of a hundred) that the supplier is willing to make available in the

    asked on April 23, 2014
  77. statistics (4)

    For a t distribution with 16 degrees of freedom, find the area, or probability, in each region. a. To the right of 2.120. (Use 3 decimals.)

    asked on April 22, 2014
  78. statistics (6)

    The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of 50 business travelers is selected and each traveler

    asked on April 22, 2014
  79. Math

    Find the average value of the function f over the interval [-1, 2]. f(x)=1-x^2

    asked on April 15, 2014
  80. statistics

    Assume that the population proportion is .55. Compute the standard error of the proportion, ( ), for sample sizes of 100, 200, 500, and 1000 (to 4 decimals). a. 100? b. 200? c. 500? d. 1000?

    asked on April 14, 2014
  81. statistics

    Assume a binomial probability distribution has p = .60 and n = 200. a)What are the mean and standard deviation (to 2 decimals)? b)Why can the normal probability distribution be used to approximate this binomial distribution? c)What is the probability of

    asked on April 5, 2014
  82. Math

    A radioactive substance decays according to the formula Q(t) = Q0e−kt where Q(t) denotes the amount of the substance present at time t (measured in years), Q0 denotes the amount of the substance present initially, and k (a positive constant) is the decay

    asked on April 5, 2014
  83. Physics

    A weather balloon carrynig a data measurement(DM) is rising quickly at a constant velocity, U. when its 60m above ground, balloon pops and the dm experiences freefall. It reaches ground 4 seconds after the balloon pops. If DM set hits ground at speed

    asked on June 24, 2013
  84. Math

    The perimeter of a pool table is about 7.8m. Four times the length equals nine times the width. What are the dimensions? I need to find 2 equations first. I got 2l + 2w= 7.8 I cant seem to get the other one

    asked on September 16, 2012
  85. chemistry

    calculate the theoretical weight of sodium borohydride need to reduce 50 mg of benzil

    asked on February 16, 2012
  86. Finance

    Your firm has the option of making an investment in new software that wil cost $130,000 today and is estimated to provide the savings shown in the table over5 years. year savings estimate 1 $35,000 2 50,000 3 45,000 4 25,000 5 15,000 should the firm make

    asked on December 17, 2011
  87. Science

    Assume that a parcel of air is forcd to rise up and over a 6000 foot high mountain.The initial temp of the parcel at sea level is 76.5 F, and the LCL of the parcel is 3000 feet. The DAR is 5.5 * F/1000m and the SAR is 3.3*c/1000m. Assume that condensation

    asked on November 25, 2011
  88. Alg 1.

    The local zoo keeps track of how many dragonflies are breeding in their insect exhibit each day. Day: 1, 2, 3, 4, 5 Dragonflies: 9, 18, 36, 72, 144 It's exponential growth. A. Write an equation for the function that models the data. B. Use your equation to

    asked on November 2, 2011
  89. Business Managment

    Problem 11.3 -- Kelly is a 35 year old single parent with a one-year-old son. She earns $45,000 a year as a marketing analyst and has employer paid group life insurance worth twice her annual salary. She also participates in her employer’s 401(k)

    asked on October 14, 2011
  90. chem

    What mass of copper(II) nitrate would be produced from the complete reaction of 25.1 g of copper, according to the chemical reaction shown below? Cu + 2 AgNO3 ----> Cu(NO3)2 + 2 Ag

    asked on September 15, 2010
  91. CHEMISTRY

    2NO(g) + O2(g) --> 2NO2(g) Derive the theoretical rate law and indicate whether or not this is a possible mechanism for the above reaction: (1) 2NO(g) * N2O2(g) (fast) (2) N2O2(g) + O2(g) --> 2NO2(g) (slow) Extra Info: This reaction is third order overall.

    asked on April 25, 2010
  92. design.

    pls help me answer this question. thank you:) youre repairing an armhole seam in a turtleneck used primarily for skiing.The stitching has come loose because of the extra movement.What type of hand stitch do you use? A.backstitch B.slipstitch C.running

    asked on December 15, 2009
  93. chemistry

    Calculate the molar mass of CH4 gas at STP when 5.46L Of the gas weights 4g

    asked on June 27, 2020
  94. Maths

    A flugpole and a building stand on the same horizontal level. From the point P at tue bottom of the building, the angle of elevation of the top of the flogpole is 65 degree from the top Q of the building the angle of elevation of the point T is 25 degree.

    asked on February 28, 2020
  95. Art

    an environment artist created a piece in protest of trash. Anticipation negative public reaction, the artist decided to display the work anyway. what is the most likely reason? A. The artist believed that the purpose of the work was to stir up awareness B.

    asked on February 5, 2016
  96. Math

    a rug in the shape of a regular quadrilateral has a side length of 20ft what is the perimeter of the rug? 4ft 5ft•• 40ft 80ft Correct me if I'm wrong!!

    asked on February 5, 2016
  97. English

    In three to five sentences, explain how Ambrose Bierce's use of foreshadowing or flashback influences "An Occurrence at Owl Creek Bridge."

    asked on December 20, 2014
  98. statistics 2

    In Hamilton County, Ohio the mean number of days needed to sell a home is 86 days (Cincinnati Multiple Listing Service, April, 2012). Data for the sale of 40 homes in a nearby county showed a sample mean of 80 days with a sample standard deviation of 20

    asked on September 24, 2014
  99. Accouning 7

    Job 31 has a direct materials cost of $300 and a total manufacturing cost of $900. Overhead is applied to jobs at a rate of 200 percent of direct labor cost. Use the relationships among total manufacturing costs, conversion cost, and prime cost to

    asked on September 9, 2014
  100. Accounting 3

    Wheeler’s Bike Company manufactures custom racing bicycles. The company uses a job order cost system to determine the cost of each bike. Estimated costs and expenses for the coming year follow: Bike parts $350,000 Factory machinery depreciation $55,000

    asked on September 9, 2014

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