Newest questions posted by Lee
  1. Math

    In order for a pet to lose weight in a healthy manner, a veterinarian suggested an overweight large-breed dog lost 2 pounds per week. If the expression x-2y represents this situation what must be true about the value of y?
  2. history

    Question: 8) What impact did the Columbian Exchange have on imperialism? A) The popularity of Columbian goo... 8) What impact did the Columbian Exchange have on imperialism? A) The popularity of Columbian goods throughout Europe built American empires. B)
  3. history

    What led to the development of one-crop economies? A. Joint-stock companies found profitability in monopolizing one cash crop. B. One-crop economies were developed through slash-and-burn agricultural practices. C. Colonies sought to reduce costs by
  4. math

    A theater has 22 seats in the first row, 25 seats in the second row, 28 seats in the third row, and so on. How many seats are in the Fifteenth row?
  5. math

    A ball is thrown into the air with an upward velocity of 40 ft/s. Its height h in feet after t seconds is given by the function h = -16h 2 + 40t + 6. A. In how many seconds does the ball reach its maximum height? B. What is the ball's maximum height?
  6. math

    Marcella and Ruben bought some party supplies. Marcella bought 3 packages of balloons and 4 packages of favors for $14.63. Ruben bought 2 packages of balloons and 5 packages of favors for $16.03. Find the price of a package of balloons.
  7. basic word and excel

    _______ data would be useful for creating a weekly status report for your manager that should reflect changes in real time. A. Field B. Integrated C. Linked D. Embedded
  8. basic word & excel

    6. _______ data updates in your destination document if there are changes to the source data. A. Linked B. Integrated C. Embedded D. Field
  9. Science

    If there's 1 gram of nitrogen (N2) at 1 L and 1 gram of hydrogen (H2) at 1 L, would the pressure of H2 be greater than the pressure of N2? And would the density of H2 = the density of N2 at these conditions? There would be more moles of H2 than N2, but the
  10. Basic Word and Excel

    What would be a situation in which you could use an Excel chart to present your data? a.)determining what percentage of customer 101 buys product A, and what percentage of the same customer buys product B b)Compiling survey questions and answers from both
  11. Calculus

    What is the size of the smallest nonnegative angle coterminal with an angle of 1051π radians? I got 180, but it wasn't correct?
  12. Chemistry

    How much energy (in Joules) is required to heat 10.48 g of water from 12.7 oC to 46.3 oC ? Use 4.184 J/goC as the specific heat capacity of water. 53 g of water at 81.5 oC is added to a calorimeter that contains 50.52 g of water at 40.6 oC. If the final
  13. chemistry

    N2 (g) + 3H2 (g) → 2NH3(g) ΔH = -92.2 kJ How much heat (in kJ) is released if 13.3 g of hydrogen is consumed to make ammonia? (Give your answer as a positive number, since you cannot release negative energy.)
  14. Bus math

    Bari Jay, a gown manufacturer, received an order for prom dresses from China. Her cost is $40 a gown. If her markup based on selling price is 76%, what is the selling price of each gown?
  15. English and Arts

    In your personal opinion are you in agreement with the auteur theory?
  16. Cinema

    Is the auteur theory accurate? I mean should one person receive the credit for making the movie or at least the inspiration to make the plot of the film?
  17. English

    Which of the following sentences demonstrates the correct use of capitalizing direction words? A. Are you heading East? B. Poor Alex thought he was driving West. C. The Northeast has been hit with an unusually cold winter. D. I live just South of Scranton.
  18. Computer

    Diagnosing is solving the problem, and troubleshooting is figuring out what the problem is. True False
  19. Math

    Julia spent 1/3 of her birthday money and she lost half of the rest now she has $10 left how much did she get for her birthday
  20. Language Arts

    "Everyone is just walking along concerned with his own problems, his own life, his own worries. And we're just expecting other people to tune in to our agenda." Think about how this theme is developed through the character's words and actions in the novel.
  21. social studies

    There was a crossword puzzle in issue 24 of the N.C weekly reader...8 across and neither my child nor myself could find the answer, she answered all of the rest of the puzzle words, but this one stumped her and it did me as well, the question was, "N.C to
  22. Physics HELP!

    A locomotive of mass 2.1 x 104 kg travelling at 2.0 m/s runs into an identical stationary locomotive. a) If the collision is perfectly inelastic, what is the speed of the two trains after the collision? b) If the collision is perfectly inelastic, what
  23. Physics

    A 5.0 kg penguin sits on top of a 12 kg sled, as in the figure. A horizontal force of 45 N is applied to the sled, but the penguin keeps himself stationary by holding onto a string attached to the wall. The coefficient of kinetic friction between the
  24. Physics

    On takeoff, the combined action of the engines and the wings of an airplane exert a force of 8.00 x 103 N on the plane upward at an angle of 65.0˚ above the horizontal. The plane rises with constant velocity in the vertical direction while continuing to
  25. Physics

    An 1800 kg helicopter rises with an upward acceleration of 2.0 m/s2. What lifting force is supplied by its rotating blades?
  26. Chemistry

    Which of the changes are chemical changes? a) Sugar crystals are ground to a fine powder. b) A candle is burned c) Two clear colorless salt solutions are mixed and a bright orange precipitate forms. d) Candle wax is melted e) A silver teapot turns black
  27. Geography

    Why might a Confucian praise or criticize China’s current political system and its approach to economic and political change?
  28. Chemsity

    will calcium metal be oxidized by sr2+?
  29. Physics

    An amount of ideal gas is placed in a sealed rigid cylinder. The container is initially placed in boiling water. It is quickly removed and placed in ice-water bath. Draw this thermodynamic process on a PV diagram. If the question change to An amount of
  30. Physics

    Three vessels have different shapes, but the area of their bottom surface is the same, and all three are filled with water with the same depth (1.|_| 2.\_/ 3./_\ ). Rank the magnitudes of the net forces exerted by the water on the bottom surface.
  31. Math

    I don't understand stand this 20y+1.50x=?????
  32. Social Studies

    How were the economies of the Nothern and Southern states different? How were they the same?
  33. I need help, I'm stuck...what is the correct answe

    The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3 0 4 2 5 2 6 1 7 2 8 3 9 0 10 4 The mean score on this test is: 6.5 The median score on this test is: 7.5
  34. Frequency-Math

    The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3 0 4 2 5 2 6 1 7 2 8 3 9 0 10 4 The mean score on this test is: The median score on this test is
  35. 6th grade math

    A camera is capable of snapping three fourts of a pic per second. How long will it take the camera to snap 6 pictures?
  36. Geology

    Which of the following is consistent with the plate tectonic theory? Which of the following is consistent with the plate tectonic theory? A. Lithosphere convection drives mantle movement. B. As a plate sinks into the asthenosphere, it pulls the trailing
  37. Math

    A population of 41,250 increases each year by 2%
  38. Physics

    A person driving her car at 45km/h approaches an intersection just as the traffic light turns yellow. She knew that the yellow light lasts only 2s before turning red,and shi is 28m away from the near side of the intersection. Should she try to stop,or
  39. Adding intergers and their application

    If the temperature was 55 degrees at 3pm what is the temperature at 11pm
  40. college algebra

    A study found that athletes who rested after exhausting exercise had half life of lactic acid removal about 23 minutes. How long would it take to remove 90% of the lactic acid?
  41. Math

    How do I write the equation for this: sum of ten and nineteen
  42. Math

    How do I write the equation for this: sum of ten and nineteen
  43. QUS 103

    A locomotive of mass 20000kg is traveling at a speed of 54km/hr on a straight track.if a breaking force of 250N per turn is applied .how far will the locomotive travel before being brought to rest? My solution:v=0 u=15m/s S=? F=250 M=20000 F=ma
  44. history

    What was the main goal of Greek colonization in the archaic period
  45. math

    car gets 19 miles to the gal at let's say $3 per gal, taking an 8.5mi trip. How much does this trip cost?

    Imagine a pasture in a small town with grazing sheep owned by several farmers. Every farmer profits by increasing the number of sheep he has on the pasture. However, the pasture can hold only so many sheep before it runs out of grass for the sheep to eat.
  47. Algebra

    How do I solve this? A plane flying the 3458-mi from New York City to London has a 50-MPH tailwind. The flight's point of no return is the point at which the flight time required to return to New York is the same as the time required to continue to London.
  48. Math

    Federico needs to frost 36 cupcakes for a party. He has already frosted 23 cupcakes and wants to know how many more he has to frost. He writes the following two equations to represent the problem, but does not know which equation is correct: 23 + c = 36 36
  49. math

    In triangle XYZ,A is the midpoint of YZ. The bisector of the exterior angle at X of XYZ cuts YZ produced at B. The line through A parallel to XB, cuts XY at P and XZ produced at Q. 1. PY= QZ
  50. MATH

    What would be the circumference of a cylinder that has a height of 8 inches and a radius of 1.6?
  51. math

    The area of a rectangular prism is 93.5 inches The height of the prism is 8 inches and the width is 2.5 inches I need help in finding the length of the rectangular prism
  52. Algebra

    TeaPots n Treasures sells loose Oolong tea for $2.15 per ounce. Donna mixed Oolong tea with shaved almonds that sell for $0.95 per ounce to create the Market Street Oolong blend that sells for $1.85 per ounce. One week, she made 300 oz of Market Street
  53. Math

    A picture frame is 6 1/2 inches wide. The ratio of the length of the frame to the width is 3:2. What is the length of the frame in inches?
  54. english composition ll

    Which of the following best illustrates a positive feedback loop?
  55. Physics

    In the series circuit, if the current through R1 is 1.5 A, what is the current through R2? 1. Unable to determine 2. 1.5 A 3. 1 A 4. 0.5 A 5. 3 A
  56. Physical sciences

    Two forces A and B act at a point O. A=30 N at 60 degree and B= 40 N at 120 degree, relative to x-axis. Calculate the magnitude and direction of the resultant force using the method of perpendicular components.
  57. Language arts

    Change possessive to it's longer form. Paul rings the church bells at a moment's notice.
  58. English

    How would I change this sentence to possessive long form? Paul rings the church bells at a moment's notice.
  59. Language arts

    How would I change this sentence possessive to long form? Paul rings the church bells at a moment's notice.
  60. College algebra

    Show me how to solve x^4-1=0?
  61. Math

    Measuring across a 14 inches how many square inches is in the circle
  62. maths

    A bag contains six blue and 4 red balls ,3 balls are drawn at random replacement what is expected no.of red balls that can be drawn?
  63. chemistry

    ΔH°rxn is -114.14 kJ/mol. Calculate ΔH°f of gaseous nitrogen monoxide, given that ΔH°f of NO2(g) is 33.90 kJ/mol.
  64. Math

    25% of my candies are chocolate candiea i had 25 chocolate candies. How many candies did i have altogether?
  65. science

    Saturn rotation and revolution compared to earth
  66. math

    Jessica left the mall and drove toward the desert at an average speed of 40 mph. Shreya left one hour later and drove in the same direction but with an average speed of 60 mph. How long did
  67. chemistry

    Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O.
  68. math

    A car can travel 436 miles on 17 gallons of gas. How far can it go on 22 gallons of gas?
  69. Personal Finance

    Would you prefer a fully taxable investment earning 13.8 percent or a tax-exempt investment earning 10 percent? assume a marginal tax rate of 28 percent.
  70. Chemistry

    . Show a chemical reaction by which hardness is added to water that also explains the formation of caves in limestone formations?
  71. Poetry

    What is rhyme scheme? (1 point_ The stressed and unstressed syllables within a poem a type of poetry that has no rhyme, but no rhythm (or patter of lines that rhyme within a poem) a poem that has a rhyming meter a poem consisting of ten syllables I think
  72. Social Studies Native Americans

    How did the Native American groups of the northern west coast adapt to their environment? a: they built their homes out of a sun dried brick called Adobe b: they had a nomadic culture, moving there teepees from place to place c: they used tree bark to make
  73. Social Studies

    Where was the native American population density higher in 1500? A.Greenland 2. Caribbean islands 3.Present day Florida 4.Present day California CAN SOME HELP PLEASE :))
  74. Organic Chemistry

    Consider the crystallization of sulfanilamide from 95% ethyl alcohol. If impure sulfanilamide is dissolved in the minimum amount of 95% ethyl alcohol at 40°C rather than 78°C (the boiling point of ethyl alcohol), how would this affect the percent
  75. Math and exopents

    Given w = 10. w + w (12 - 2*2 * 3) * 7? Can some one help? the answers are: 73 12 6 3 but none of my calculations are 73, 12, 6 or 3 :(
  76. Math

    PLEASE HELP What is 6x3 / 9 - 1? I got 6 x 3 = 18 / 9 - 1 = 1 But for the answers it only 2 3 5 6 no 1 :((
  77. Spelling

    Does the word swimming have any silent letters? Is the second letter m silent?
  78. Differential calculus

    The voltage across the plates of a capacitor at any time t seconds is given by V=Ve -t/CR, where V,C and r are constants. Given V = 300 Volts, C =0.12*10-6 F and R = 4*10 6 ohms Find the initial rate of change of voltage and the rate of change of voltage
  79. math

    A rectangular dog pen that has the greatest possible area within a budget of 50$.A pen needs at least one gate for a dog. Fencing is $1.00 per foot, fence posts are $2.00 each and gates (3 feet wide) are $5.00 each. what is the area of a pen? pls help me
  80. physics

    a softball is thrown at a speed of 40 miles per hour in a course that makes an angle of 60 degrees with the positive x axis. what is the initial speed in the horizontal direction?
  81. Maths- Please help

    How do i work out the mass of a flywheel. I am given the density as 7500kg/m3, a 500mm diameter and a 10cm thickness. Please help
  82. science

    A car,mass of 1500kg,accelerates at 2m/s from rest. Find 0-60mph time, use 1 mile=1613m
  83. chemistry

    What is the volume of dry O2 gas at STP, if it had a volume of 5.00 L at 103 kPa and 300 K?
  84. chemistry

    Consider the reaction 2 NO2 (g) ⇌ 2 NO (g) + O2 (g). If the initial partial pressure of NO2 (g) is 3.0 bar, and x is the equilibrium pressure of O2 (g), what is the correct equilibrium relation?
  85. trapezoidal method

    dy dt = 1 + (t − y)^2, t ∈ [2, 3], y(2) = 1 use a step size of h = 1 and the Trapezoidal method to calculate by hand a numerical value for Y1 (≈ y(t = 3)).
  86. Geometry

    A red cross helicopter takes off and flies 75km at 20degree south of west. There it's drops off some relief supplies. It then flies 125 km at 10 degree west of north to pick up three medics. A. Make an accurate drawing of the two vectors decribed? B. draw
  87. math

    18*5 1/16=
  88. math

    5*5 1/16=
  89. Chemistry

    calculate the density of 50.0 g of gold that occupies a volume of 2.59 mL.
  90. Simultaneous equations

    3x-14y=O and x-4y+1=0
  91. logic and design

    algorithm for waking in the morning, making and eating breakfast, I don't feel this is enough for my teacher can you help me. Idon't know if i have enough code start get up while not awake drink coffee endwhile if temperature < 65 then wear sweater else
  92. Physics

    a rectangular box of negligible mass measures 5m long,1m wide and 0.5m high. How many kilograms of mass can be loaded into the box before it will sink in a freshwater lake?
  93. Math

    A carton contains 1 8/9 liters of apple juice. Rosalia drinks 1/6 liter of the juice every day. How much apple juice is left in the carton after a week?
  94. physics

    If an atom has an electron in the n = 5 state with ml = 3, what are the possible values of l?
  95. accounting

    which is an operating expense a salaries expense b payroll expense
  96. Chemistry

    The Ksp values of BaSO4 and SrSO4 are 1.1x10^-10 and 3.8x10^-7 respectively. Calculate the concentrations of Ba2+, Sr2+, and SO4 2- in a solution that is saturated with BaSO4 and SrSO4.
  97. statistics

    A researcher finds that two continuous, random variables of interest, X and Y, have a joint probability density function (pdf) given by: f(x,y)={cxy 0
  98. statistics

    You want to set up a games stall at the Winter Wonderland. You have a single pack of 52 cards and decide to play card games with your customers. The game is designed as follows. A customer draws 4 cards at random. For every “Ace” that the customer
  99. chin

    The following data shows the annual salaries of 12 randomly selected employees of a company (in £ 1000’s) on the X-axis and the average number of days they have taken days off work in the last 10 years on the Y-axis. Y X Y X 11.1 29.6 9.6 39.2 8.4 58.6
  100. chin

    You want to set up a games stall at the Winter Wonderland. You have a single pack of 52 cards and decide to play card games with your customers. The game is designed as follows. A customer draws 4 cards at random. For every “Ace” that the customer


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