Lydia

Newest questions posted by Lydia
  1. math

    Sinea wants to spend money using the same ratios as on her last trip to the carnival. If she spends $28 on games, how much will she spend on souvenirs? Snacks Games Souvenirs Sine $5 $8 $18
  2. History

    Which best describes how European powers of the 16th century used the economic theory of mercantilism to grow their wealth? A) European nations maximized the sale of exports and established tariffs to restrict colonies from trading with foreign nations. B)
  3. History

    Which best describes the significance of the Treaty of Tordesillas? A) It was the first time in world history that two European nations sought a third party to mediate a dispute regarding foreign lands. B) It was the first time in world history that two
  4. History

    Which accurately describes the exploration efforts of Francisco Pizarro? A) Pizarro led expeditions to modern-day Pennsylvania and established a Quaker colony. B) Pizarro led a fleet of three ships—the Niña, Pinta, and Santa Maria—to the Bahamas. C)
  5. Math

    the three vertices of rectangle ABCD are A(2, 1) , B(6, 1) , C(6, 4).Find the coordinates of D. Please help me,thank you.
  6. Math

    Find the coordinates of the midpoint of (2/3, -3/2)and (8/3, -11/2).help me please
  7. Math

    A man will pay RM 46000 to renovate an office . If the construction materials cost 25% more and the labour costs 30% more , he will need to pay RM 58540. Find the original cost of the construction meterial and the cost of labour .(Used equation)
  8. World History

    Which accurately describes the differences between Orthodox and Reform Jews? orthodox jews strictly follow mosaic law, whereas reform jews do not follow all ancient laws reform jews strictly follow mosaic law, whereas orthodox jews do not follow all
  9. chemistry

    What is a saturated solution?
  10. S.S.

    Which statement best describes the framework of government established by the Constitution? A. The three branches of government defer the majority of power to the states B. A system of checks and balances keeps each of the three branches from having too
  11. chemistry

    Examine the equation. 6CO2 + __H2O → C6H12O6 + 6O2 In order to balance the equation, what coefficient must be placed in front of H2O 4 6 12 1 please help
  12. chemistry

    two everyday chemical reactions then after you have chosen your two everyday chemical reactions List the two reactions and their chemical equations. Also, state each reaction's type (synthesis, decomposition, displacement, or combustion). please help
  13. chemistry

    Are Si valence electrons shared? Are C valence electrons shared? please help
  14. chemistry

    Which statement correctly describes a covalent bond? The atoms' valence electrons combine to form a network of bonds. Valence electrons are transferred from one atom to the other. The atoms' valence electrons are shared between the atoms. All of the atoms'
  15. chemistry

    Which of the answers choices best describes John Dalton's contribution to atomic theory? he discovered to nucleus he gave future scientist a foundation for understanding how electrons move. he gave future scientist a foundation for understanding how atoms
  16. science

    In which of the following phase transitions is energy released? liquid to solid solid to gas liquid to gas solid to liquid please help
  17. science

    Molten lava coming out of a Hawaiian volcano cools down and forms rock. Which statement best describes the flow of energy in the scenario?  energy moves from lava to the surroundings energy moves from the surroundings to the lava energy stays within the
  18. science

    Molten lava coming out of a Hawaiian volcano cools down and forms rock. Which statement best describes the flow of energy in the scenario?  energy moves from lava to the surroundings energy moves from the surroundings to the lava energy stays within the
  19. science

    A scoop of ice cream is placed on top of a warm piece of pie in a bowl. Which statements about the scenario are true? (Select all that apply.) the pies energy will destroy a portion of the ice creams energy the overall amount of energy in the bowl will
  20. science

    Which statements best describe how the properties of gases and plasmas differ? (Select all that apply). The particles of plasmas have a higher kinetic energy than the particles of gases. Gas particles are charged while plasma particles are uncharged.
  21. science

    liquid water has a constant density. Do you agree or disagree with this statement? Why or why not? Be sure to support your argument by using what you have learned about the states and motion of matter. please help
  22. science

    liquid water has a constant density. Do you agree or disagree with this statement? Why or why not? Be sure to support your argument by using what you have learned about the states and motion of matter.
  23. science

    List your own example of turning an observation into a hypothesis. Be sure to list all five steps: observation, explanation, test (independent variable), prediction (dependent variable), and hypothesis. please help
  24. science

    Observation The trash smells. Explanation Decaying biological material causes the trash to smell. Test (independent variable) Add food scraps to one trash can along with other materials, such as plastic, cardboard, paper, and tin. To a second trash can,
  25. chemistry

    Examine the analogy and how it compares a part to a whole. link : chain :: atom : _____ Choose the answers that best complete this analogy. (select all that apply) molecule matter compound proton please help
  26. chemistry

    How can the concept Independent Variable v Dependent Variable apply in your life? please help
  27. science

    What physical property is changed when a waitress pours coffee from a pot into four mugs? density color volume temperature
  28. science

    Baking soda is mixed with water, and no bubbles are produced. When baking soda is mixed with vinegar, it bubbles and foams rapidly. What chemical property of baking soda is shown in the scenario? 1)reactivity 2)boiling point 3)flamibility 4)color change
  29. science

    Which process is an example of a chemical change? A metal railing rusting in damp weather alcohol evaporating from a cotton swab steam rising from a boiling pot of soup a piece of wood shrinking as it dries out
  30. science

    Which process is an example of a chemical change? drying clothes in the dryer chopping a tree activating a glow stick heating a cup of tea
  31. science

    Imagine yourself making a nice cup of tea on a cold winter day. You begin by boiling some water in a kettle. Next, you add the steaming liquid to your cup. Then, you open a tea bag and repeatedly dunk it into the water. You pour a dash of milk and drop a
  32. science

    which items would still be classified in the same way? Which items would be classified differently? • atoms     • elements     • compounds     • molecules     • matter please help
  33. math

    Can you please help me simplify this into one fraction? 3/(x-3) - 5/(x/2) Here are the options: A) -2x+9/(x-3)(x-2) B) -2x/(x-3)(x-2) C) -2x-9/(x-3)(x-2) D) 2x+9/(x-3)(x-2) I think it's option D but I'm not so sure :(
  34. Chemistry

    Please help me these are the only two I have left. 17. If the solubility of a gas is 5.6 g/L at 505 kPa pressure, what is the solubility of the gas when the pressure is 1010kPa? * 19. Calculate the [H⁺] for the aqueous solution in which [OH⁻] is 1
  35. Chemistry

    Can someone check my answer and let me know me if the are right or wrong. 1. What is the maximum amount of KCl that can dissolve in 600 g of water? (The solubility of KCl is 34 g/100 g H₂O at 20°C.) * 34 g 204 g ***** 2040 g 3. (1 point) If the
  36. Chemistry

    Can someone check my answer and let me know me if the are right or wrong. If I wrong can you give me the right answer plz. 1. What is the maximum amount of KCl that can dissolve in 600 g of water? (The solubility of KCl is 34 g/100 g H₂O at 20°C.) * 34
  37. Algebra

    Determine the discriminant for the quadratic equation -3 = x^2 + 4x + 1. Based on the discriminant value, how many real number solution does the equation have? Discriminant =b^2 - 4ac
  38. Science

    When calculating delta Tsample,why is th initial temperature taken to be 100 degrees Celsius
  39. Math

    The temperature at 6:00 pm was 33°f.over the course of the day, the temperature decreased 5.5°F per hour. What was the temperature at midnight?
  40. english

    Nwoye and Ikemefuna as a representation of the rise of new cultural formation among the igbo society in Achebe's Things Fall Apart
  41. english

    Chinua Achebe's Things Fall Apart as a Postcolonial novel
  42. english

    Chinua Achebe's Things Fall Apart as a defiance of eurocentric sociological and anthropological narration of South Africa
  43. math

    Earned five dollar earned $5.50 per hour as an assistant in an auto repair shop how much will Taylor on if she works for and a half hours on Friary's
  44. Math

    if 6 workers complete a 1 km of roadway in 4 days. how long would it take for 4 workers to complete 3 km of roadway
  45. Trigonometry

    Suppose *u* is a quadrant IV angle with cos(u) = 3/5. Suppose *v* is a quadrant IV angle with cos(v) = 12/13. Find the exact value of sin(u-v) I have gotten to sin120cos150 - sin150cos120 but I am not sure I am correct up to that point and I don't know
  46. Math

    A tennis racket is offered at 25% off. Including 7% sales tax, the final price is $67.41. What is the original price, without tax or discount?
  47. Science (Physics)

    Air becomes a conductor when the electric field strength exceeds 3.00 × 106 N/C. Determine the maximum amount of charge that can be carried by a metal sphere 8.5 m in radius. The value of the Coulomb constant is8.99×109 N·m2/C2. Answer in units of C. I
  48. physics

    Multiple Concept Example 9 provides background pertinent to this problem. The magnitudes of the four displacement vectors shown in the drawing are A = 17.0 m, B = 10.0 m, C = 11.0 m, and D = 23.0 m. Determine the (a) magnitude and (b) direction for the
  49. physics

    Can anyone help just can figure it out. Multiple Concept Example 9 provides background pertinent to this problem. The magnitudes of the four displacement vectors shown in the drawing are A = 17.0 m, B = 10.0 m, C = 11.0 m, and D = 23.0 m. Determine the (a)
  50. physics

    Multiple Concept Example 9 provides background pertinent to this problem. The magnitudes of the four displacement vectors shown in the drawing are A = 17.0 m, B = 10.0 m, C = 11.0 m, and D = 23.0 m. Determine the (a) magnitude and (b) direction for the
  51. physics

    a mass if 10kg move with a velocity of 4ms-1find it kinetic energy.
  52. geometrie

    (4, 5)'(9, 5) and (5,1) are three of a quadrilateral whose opposite sides are equal and parallel.there are three possibilities for the co-ordinates of the missing vertex.Find all three,and draw the three quadrilateral on a grid
  53. Urgent math

    please help The fox population in a certain region has a relative growth rate of 7% per year. It is estimated that the population in 2005 was 19,000. (a) Find a function n(t) = n0ert that models the population t years after 2005. n(t) = (b) Use the
  54. Urgent math

    population growth model. Can anybody please help me out in trying to solve this problem? It's my homework and I don't seem to understand what I am getting. The count in a culture of bacteria was 400 after 2 hours and 25,600 after 6 hours. (a) What is the
  55. College Algebra

    f(x) = x2 + 11x, x ≥ − 11/2 find the inverse
  56. College Algebra

    A function f has the following verbal description: "Multiply by 5, add 9, and then take the fifth power of the result." and find the inverse?
  57. Algebra

    Find the net change in the value of the function between the given inputs. g(t) = 8 − t2; from −6 to 9
  58. Algebra

    If g(x) = x2 + 8x with x ≥ −4, find g−1(20)
  59. College Alg

    Find the inverse function of f. f(x) = 36 − x2 , 0 ≤ x ≤ 6 I can't seem to find this inverse, someone help please?
  60. College Algebra

    If g(x) = x2 + 6x with x ≥ −3, find g−1(55) I need help solving this problem this is an example but it does not thoroughly is explained. :/
  61. College Algebra

    A rectangular parcel of land is 20 ft longer than it is wide. Each diagonal between opposite corners is 100 ft. What are the dimensions of the parcel? This is an Example in the book but it does not clarify in the text book, Can anybody please show me how
  62. educational technology

    3. adding transitions to slides in a presentation A. offers effects when moving from one slide to the next.***** B. adds animation to selected text and images. C. adds a new slide to a presentation in microsoft powerpoint. D. creates sound effects
  63. HISTORY

    Choose two famous Americans who lived during the period 1820–1860. • Research the two people you chose. • Analyze your research. • Write a dialogue between the two famous Americans Can somebody help me with this? * Give me ideas for people *
  64. acounting

    A company purchased and installed a machine on January 1 at a total cost of $72,000. Straight-line depreciation was calculated based on the assumption of a five-year life and no salvage value. The machine was disposed of on July 1 of the fourth year. The
  65. science

    An experienced mountaineer decided to climb mount everest using the same route in the same season and with similar materials and equipment used by a fatal 1924 expedition . The scientific purpose of such a climb would be to
  66. science

    Pepsin,which speeds up the breakdown of protein,is classified as
  67. calc / physics

    Suppose that a 5-foot-long chandelier falls from a 35-foot ceiling and that you are 6 feet tall and standing directly under the chandelier (a) How long do you have to get out of the way when it drops? =-16(t^2)+Vt+h =-16(t^2)+0+(35-5-6) (for the bottom of
  68. Algebra

    If twice the opposite of a number increased by five, then the result is the opposite of a number. What is the number? What is this even asking off me?
  69. math equation

    Please help me to work this out using the inversion method (I'd appreciate if you could provide a step by step breakdown (I don't understand how to do it and my math really sucks!!): Jim spent 1/3 of his salary on food. He spent 1/4 of it on shoes. He has
  70. Math Help? Check my answers.

    1. Name the coefficients in the polynomial. 4x^2 + 3x - 3 4, -3, -3 4, 3, 4, 3, 3, -4, -3, 2. How many terms are in the following polynomial? 6x^4 + 3x^3 - 2x^2 + 15x - 14 5 4 3 2 3. In the expression -7x - 5x^2 + 5, what is the coefficient of x? 7 5 -5 -7
  71. Math Help? Check my answers.

    1. Find the next three terms in the sequence. 30, 22, 14, 6, ... -3, -12, -21 -1, -8, -15** -1, -2, 3, -2, -10, -18 2. Find the next three terms in the sequence. 3, 6, 9, 12, ... 15, 18, 20 15, 19, 20 15, 18, 21 14, 18, 21** 3. Find the next three terms in
  72. english

    Which of the following sentences contains an italicized word that's used as a predicate adjective? A. Jerry looks into the microscope. B. Jerry looks ill today. C. Jerry looks at the map. D. Jerry looks disdainfully at the pile of laundry. I think it's B.
  73. math

    how do you do this problem of inequality -2(-3x4 > 3(5-2x)
  74. Math

    How can you write a unit rate if at least one term is a fraction? How is this different from writing a unit rate where both terms are whole numbers?
  75. Mahlangu

    Identify one environmental or human factor that causes ill health,accidents,crises and disasters within your community or any other community within South Africa.
  76. Chemistry

    Explain how water of hydration is related to measurement. Then explain how it is related to the law of definite composition
  77. Geometry: Student Correction (Stuck)

    Joelle set up the following proportion: 4/6 = 5/x. Solve for x. Determine if proportion is correct. If not, explain what is wrong with it.
  78. Geometry

    Triangle ABC has vertices of A(0,0), B(–4,0)and C(–2,4). The coordinates of each vertex in triangle AEF are multiplied by 3 Is triangle ABC~AEF? Explain.
  79. Chemistry

    What is the percent by mass of glucose in a solution containing .15 mol of glucose dissolved in 410 g acetic acid? The molar mass of glucose is 180g/mol.
  80. Math (9th grade)

    Write an equation in point slope form of a line parallel to 12x-2y=6 and passes through the point (-4,-3)
  81. Chemistry

    A reaction is peformed in which 50 ml of .400M silver nitrate and 75 ml of .100M hydrochloric acid are mixed together. The initial temperature of the solutionn was 25 C and the final temperature was 27.2 C. What is the enthalpy, in kj/mol, for the
  82. chemistry

    what is the sum coefficient and balanced equation of : Co(OH)3+Na2CO3 my answer is 3Co(OH)3+ 3Na2CO3---> 3CoCO3+ 3Na2OH
  83. chemistry

    How could you use a precipitation reaction to separate the following pair of cations: K^+ and Hg2 ^2+? (write the formula and net formula for each reactant)? The answer is Hg2 ^2+ (aq) + 2Cl- (aq) = HgCl2(s) but how do I work it out?
  84. chemistry

    How do I balance the following equation by the half-reaction method (it takes place in basic solution)? Fe(OH)2(s) + O2(g) = Fe(OH)3(s) the answer is 4Fe(OH)2(s) + 2H20(l) + O2(g) = 4Fe(OH)3(s) but how do I work it out?
  85. Math (12th)

    What is the common difference in the arithmetic sequence 30, 27, 24, 21, 18, ...
  86. literature

    Is Pride and Prejudice identified more with Romanticism or Realism? Even though it was written during the Romantic period, it seems more like Realism to me. Is this correct? Thanks!
  87. Math please help urgent !

    Find the slop of the tangent to the curve y=(10-sqrt x)(5+sqrt x) at x=25
  88. Cross country running

    how do you keep motivated to keep going even though your body wants to quit?
  89. Cross country running

    Can I do anything for side cramps during a race?
  90. Cross country running

    How does one deal with another runners joy after getting sufficiently skunked? In other words, Can I get some tips on how to be a good sport when I get creamed during a race?
  91. science

    what is the geometry around each carbon in ethanoic acid
  92. history

    The Philippine-American war was A) a minor event for americans B) more costly than the spanish american war C) fought in a traditional manner D) never completely resolved E) over even before the spanish american war
  93. English

    What is an example in "Antony and Cleopatra" of Casear displaying a disposition to not want to go to war? Thank you!
  94. physics

    A 29 g rubber bullet is travelling to the right at 200 m/s, when it hits a 1.1 kg block of wood sitting on a horizontal frictionless surface. If this collision is inelastic (though not perfectly inelastic), and the velocity of the block of wood after the
  95. physics

    Assume you are given two objects whose centre of mass is located exactly at the origin. The first object has a mass of 33 kg and is located at position +30 m with respect to the origin. If the mass of the second object is 7.0 kg, what is its position (in
  96. physics

    Ian is firmly attached to a snowboard which is on a flat surface of ice, which you can assume to be frictionless. He and the snowboard are initially at rest. He then throws a 138 g ball which travels at a speed of 19.2 m/s, and finds himself moving
  97. physics

    What is the magnitude of the momentum of a car weighing 1,555 N when it is moving at a speed of 23 m/s? Express your answer in kg m/s.
  98. physics

    Assuming maximal power output, how long, in seconds, would it take a 1,535 kg car with a 128 hp engine to accelerate from 50 km/h to 102 km/h? (1 hp = 746 W)
  99. social studies

    between 1400000 and 500000 years ago early hominids learned how to?
  100. Ecology

    Signs of fish stress include A. increased respiration B. faster scale growth C. reduced feeding rates D. both A and C Thanks for the help!

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