Newest questions posted by Allison
  1. pre-calc

    Find the indicated nth partial sum of the arithmetic sequence. 2, 10, 18, 26, . . ., n = 15
  2. pre-calc

    A hardware store makes a profit of $41,000 during its first year. The store owner sets a goal of increasing profits by $9000 each year for 4 years. Assuming that this goal is met, find the total profit during the first 5 years of business.
  3. pre-calc

    An auditorium has 24 rows of seats. There are n = 23 seats in the first row, 24 seats in the second row, 25 seats in the third row, and so on. How many seats are there in all 24 rows?
  4. math

    a rectangle has an area of 4(x+3)square units. if the dimensions are doubled what is the area of the new rectangle terms of x.will the ratio of the area of the original rectangle to the area of the larger rectangle be the same for any positive value of x?
  5. Chemistry

    how many mL of .122 M MnO4- are required to react with an excess of C2O42- in order to produce 75.25mL of carbon dioxide gas measured at 30 degree C and 715 torr?
  6. Chemistry

    The latent heat of vaporization of ethanol is 200 calories/gram. This means that _____.
  7. algebra

    You can buy 1 child's ticket, 1 adult's ticket and 1 senior citizen's ticket for a minor league baseball game for $29. Tickets for adults cost 3 times as much as tickets for children. A family of 3 children, 2 adults, and 2 senior citizens pays a total of
  8. physics

    The human body loses heat at a rate of 120W when sitting quietly at rest. If a 65 kg student takes 100 hours to read War and Peace by Leo Tolstoy, how high could they have been lifted if all the heat energy lost was utilised to lift them against gravity
  9. Chemistry - Van't Hoff Factor

    How do I determine the van't hoff factor for a strong unknown electrolyte? I have the freezing point depression, (0.46 C) and there 18 ml of the unknown solution. I know the formula is T=iKfm, but I don't know how to apply it when I don't know m.
  10. Biochem

    Consider the malate dehydrogenase reaction from the citric acid cycle. Given the following concentrations, calculate the free energy change for this reaction at 37.0 °C (310 K). ΔG°\' for the reaction is 29.7 kJ/mol. Assume that the reaction occurs at
  11. Politics

    Are drones an effective use of counter-terror techniques or a mechanism of state terrorism?
  12. Government

    What criteria should civil societies have? What are some ways that we can measure the strengths of civil societies? Thank you for your help!
  13. Chemistry

    What are at least 2' real world uses of colligative properties?

    1. Not sure of how to do the calculations... Make a 0.200 m solution of NaCl in a 100. mL volumetric flask. ... Solution A's question or statement is the same but with M (molarity) Is this right? The small m means molality. If it were changed to capital M,
  15. History

    What diseases were originated or were most common in the 12th century?
  16. Math, Precalc

    A fishing boat leaves port at 4 miles per hour at a bearing of 80∘ for 3 hours, then turns to a bearing of 0∘ at 3 miles per hour for 4 hours, and finally changes to a bearing of 200∘ at 6 miles per hour for 5 hours. At this point, the boat heads
  17. Math, Precalc

    Find, to the nearest tenth of a degree, the angle formed by the two main diagonals of a cube that connect consecutive vertices of the lower base to the opposite consecutive vertices of the upper base, as illustrated at right.
  18. Physics

    A plane leaves Seattle, flies 77.0 mi at 21.0 ∘ north of east, and then changes direction to 52.0 ∘ south of east. After flying at 124 mi in this new direction, the pilot must make an emergency landing on a field. The Seattle airport facility
  19. World History

    The Arabs carried an expensive trade both by (blank) and by camel (blank)
  20. math

    Name the sets of numbers to which the given number belongs 60/47
  21. algebra II

    Joe has 120 coins consisting of dimes and quarters with a value of $19.05. how many dimes and quarters does Joe have?
  22. geometry

    2004-06-01-04-00_files/i0320000.jpg Find the volume of the cone. Round your answer to the nearest hundredth.
  23. Maths

    Julie is j years old. Her father is four times as old as Julie and her mother is seven years younger than her father. How old is each person?
  24. math

    lim f(x) xcubed - 8/ xsquared -5x+8 x --2
  25. Computer Science

    Create a Raptor Flowchart that calculates the amount a person would earn over a period of time if his or her salary were five cents the first day, ten cents the second day, and so on doubling each day. Your program should: 1. Request the number of days. 2.
  26. Math

    the ratio of father's age to his son age is 8:3. in 5 year's time the sum of their ages will be 54. how old are they
  27. college math

    a basketball team played 68 games they won 22 more than they lost. how many games did they win? how many games did they lose?
  28. Chemistry

    How do you determine the number of valence electrons in one atom of each of the following elements. ... We had 20 elements overall for homework so I listed the first 5 A) Na B.) F C.) Rb D.) Ba E.) I
  29. health

    Every ________, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. A. 5 to 7 seconds B. 3 to 5 seconds C. 1 to 3 seconds D. 7 to 9 seconds I think its B
  30. Chemistry

    a 6.0 mole sample of Ca3(PO4)2 and a 12.0 mole sample of SiO2 react in an evacuated vessel. after one of the reactants is fully consumed, how much of the gas is created? How exactly would you solve this problem? Would you have to find the molar mass of
  31. Geometry

    Given: B is the midpoint of line AC. D is the midpoint of line CE. Ab=De Prove AE=4AB
  32. Reading

    Need to finish reading a book but I am on pg 76 and thar is 178
  33. Finance

    a share of preferred stock of MXT LTD. is expected to pay 1.0 per quarter into indefinite future. the current required annual expected rate of return, k, is 8%. suppose that an investor buys 10 shares today and wants to hold these shares for the next 2
  34. Chemistry

    Find the Density of xenon of STP
  35. Chemistry

    Find temperature of 20.0g of nitrogen that occupies volume of 500.0ml at pressure 0.45 bar.
  36. chemistry

    Find volume of carbon dioxide occupied by 1.0g of CO2 at 0 degrees Celsius and pressure 25.0 torr.
  37. Chemistry

    Find pressure exerted by 2.0g of helium enclosed in a 100.0 ml container at 25 degrees Celsius
  38. Chemistry

    Explain Why some ionic compounds are soluble in water. Explain why non-ionic compounds, such as ethanol or sugar are soluble in water. Explain what a saturated solution.
  39. Chemistry

    How to prepare 250ml of 0.2 M hydrochloric acid from 2.5 M hydrochloric acid.
  40. chemistry

    Find volume (in ml) of 0.3 M solution of sodium chloride containing exactly 3.0g of sodium chloride.
  41. Chemistry

    how to prepare 100.0 ml of 0.2 M solution of sodium hydroxide
  42. Chemistry

    A solution contains one or more of the following ions: silver, barium, and Copper (II). CY 105 student adds sodium chloride to a small sample of the solution of the unknown and a white precipitate is formed. He/she filters out the precipitate and then add
  43. chemisty

    find the oxidation state of a carbon in methane, carbon monoxide, carbon dioxide, CH2O, acetic acid, carbonic acid, methanol, and benzene (C6H6)
  44. chemistry

    find the volume of 0.1 M hydrochloric acid required to react with 22.0ml of 0.07 M barium hydroxide
  45. chemistry

    find volume of 0.2 M sulfuric acid required to react with 15.0 ml of 0.25 M sodium hydroxide
  46. chemistry

    find mass of magnesium nitride produced in reaction of 5.0of magnesium with 10.0gof nitrogen. the reaction was carried out in a closed container
  47. chemistry

    find composition of post-reaction mixture if 10.0g of sulfur and 20.0g of iron were reacted in a closed container producing iron (II) sulfide
  48. chemistry

    find mass of sulfuric acid obtained in reaction of 20.0g if sulfur trioxide with excess of water
  49. chemistry

    find mass of calcium carbonate obtaqined in reaction of 10.0g of calcium oxide with an excess of carbon dioxide
  50. Chemistry

    Find the molarity of a sodium hydroxide solution obtained by dissolving 125.0 mg of sodium hydroxide in volumetric flask.
  51. Astronomy

    The Hubble Space Telescope orbits at an altitude of 600 km above the Earth's surface. Assuming it is in a stable circular orbit, what is its velocity? For reference, the Earth's radius is 6400 km and Earth's mass is 6 x 10^24 kg. The formula to solve for
  52. Math

    Hello! Can you check my answers for these 4 worksheet questions? Thank you in advance (: 1. The following ordered pairs give the scores on two consecutive 15-point quizzes for a class of 18 students. (7, 13), (9, 7), (14, 14), (15, 15), (10, 15), (9, 7),
  53. Math / Algebra

    Can you check my work? Thank you :) 1. The Domain of a function F is the same as the range of F^-1 (True or False?) Answer: True. 2. Does the function y = |x-2| have an inverse? Select the best answer. A. Yes, it passes the horizontal line test. B. No, it
  54. physics

    An object has the following equation of motion (equation describing its position as a function of time). x(t) = x0 where x0 = −2.3 m. What is the object’s position at time t = 23 s? What is its velocity?
  55. Physics

    Station Math Two station astronauts will each perform two 8-hour EVAs within 13 days to repair a damaged solar panel that was impacted by a micrometeoroid on the space station. What is the total amount of oxygen needed by the two astronauts to accomplish
  56. chemistry

    write the mass number, atomic number,number of protons, neutrons,and electrons for He, Si, K+, N3-
  57. chemistry

    an ice cube has a mass of 4.3g and a mass of 5.0mL it is placed in a 30mL of oil that has a mass of 27 g will the ice cube float or sink in the oil
  58. Chemistry

    Complete the Bronsted- Lowry reaction, placing each product by its appropriate label. HCO3^-+HNO2 (double arrows) need a spot for acid and for base.
  59. maths

    by how much does the 3 in 34685 exceed the 3 in 23487
  60. Math Help!

    1. Find the product. (2x)(10x) 20x 12x 20x^2 5x 2. -3m(m + 8) -3m^2 + 24 -3m^2 + 24m -24m^2 -4m + 5 3. 4d(2d - 9) 8d - 36d -d -28d^2 8d^2 - 36d
  61. Math 2

    Ammeter has 1/4 of fabric. She cuts it into 3 equal pieces. What fraction of a yard is each piece of fabric?
  62. Math 2

    John solved 1/5 divided by 10 by using a related multiplication expression. Which multiplication expression did she solve? Choices are A. 5 *10 B. 1/5 *10. C. 5* 1/10 d. 1/5 *1/10
  63. Statistics

    A simple random sample of 27 adult mice has a length standard deviation of 0.66 mm. Using a 0.10 level of significance, does it appear that these mice come from a population with a length standard deviation of 0.87 mm?
  64. Statistics

    A simple random sample of 27 adult mice has a length standard deviation of 0.66 mm. Using a 0.10 level of significance, does it appear that these mice come from a population with a length standard deviation of 0.87 mm?
  65. Statistics

    One survey by the American Medical Association showed that among 785 randomly selected people who completed four years of college, 81.7% do not smoke. Use a 0.01 significance level to test the claim that people who completed four years of college are more
  66. math

    How do you find the sum of the mode from each set of data? Set A: ( 4,9,7,2,4 ) Set B: ( 11,6,4,6,2 ) Set C: ( -3,2,9,-3,-3)
  67. Chemistry

    What mass of octane must be burned in order to liberate 5410 kJ of heat?
  68. Math Help? Check my answers.

    1. A spinner is divided into 10 equal sections numbered from 0 to 10. You spin the spinner once. What is P(divisible by 3)? 1/3 1/2 2/5 3/10** 2. A bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. You
  69. Physics

    The figure(Figure 1) shows a solid metal sphere at the center of a hollow metal sphere. Assume that E=1.2×104N/C. What is the total charge on the exterior of the inner sphere?
  70. Physics

    An electric dipole is formed from two charges, ±q, spaced 1.00cm apart. The dipole is at the origin, oriented along the y-axis. The electric field strength at the point (x,y)=(0cm,10cm) is 320N/C . What is the charge q? Give your answer in nC. What is the
  71. math

    A rectangular fish pond is 21ft(squared) in area. If the owner can surround the pond with a 20 foot fence, what are the dimensions of the pond?
  72. AP Chemistry

    A solution is made by mixing exactly 500 mL of 0.167 M NaOH with exactly 500 mL of 0.100 M CH3COOH. Calculate the equilibrium concentrations of H+, CH3COOH, CH3COO-, OH-, and Na+.
  73. physics

    a wooding block of mass 7.6kg rest on a rough horizontal surface if the surface is 8N calculate the coefficient of friction
  74. Chemistry

    What is the theoretical yield of ethyl chloride in the reaction of 19.2g g of ethylene with 48g g of hydrogen chloride?
  75. Water - Math Question

    This question is related to water footprint calculation. I have no idea how to go about this, if anyone could point me in the right direction, I'd be forever grateful! Background info: The water footprint of the resident of a Blue Sea riparian country (92
  76. algebra 2

    Teaneck High had an enrollment of 11050 in 1990 and an enrollment of 13390 in year 1998. What is the predicted enrollment of Teaneck High in 2018 if we assume a linear model?
  77. math

    Biologists have noticed that the chirping of crickets of a certain species is related to temperature, and the relationship appears to be very nearly linear. A cricket produces 119 chirps per minute at 67 degrees Fahrenheit and 172 chirps per minute at 88
  78. U.S. Government

    How is the American Government Organized and their functions? - I have to write a 5 paragraph essay and I need help researching. - Do you know a website I can get information? P.S ; I do not have a book. I'm taking an online class and I have to
  79. Government

    1. The U.S. Constitution's Article I, Section 1 created the office for the U.S. president. A) True B) False 2. The term of office for a House member is two years. A) True B) False 3. Two requirements for members of the House are that they must be 25 years
  80. statistics

    If I know that a set of test scores has a mean of 75 and a standard deviation of 8 what can I conclude?
  81. Government (Check Answers)

    1. What is the procedure of voter identification intended to help prevent fraudulent voting and keep the process organized? A) political socialization B) registration C) gerrymandering D) precinct divisions E) franchising 2. What do you call all the
  82. U.S. Government

    1. Amendment -- gave all men the right to vote regardless of race. - 15? 2. People who believe voting is important have high political ----c-c-. - efficacy? 3. It is an essential part of democracy in action, for the people to ---e. - vote? 4. The age
  83. government

    1. The Framers of the US Constitution supported political parties. A) True B) False 2. The US is predominantly a multiparty system. A) True B) False 3. The main focus of major parties is to nominate candidates and get them elected. A) True B) False 4. The
  84. Economics

    The Law of Supply (movement along the curve due to the price effect) occurs because A) producers usually offer more for sale at lower prices than at higher prices. B) marginal production costs usually fall at higher rates of production. C) people can buy
  85. Government

    1. States must honor each other's laws and court decisions according to... (C) A) 1st Amendment B) Privileges and Immunities Clause C) Full Faith and Credit Clause D) Revenue Sharing 2. The National Government can enter a State to restore order in cases of
  86. government

    The National Government can form a new State out of an existing State without the permission of the existing state? True or False
  87. Government

    1. States must honor each other's laws and court decisions according to... A) 1st Amendment B) Privileges and Immunities Clause C) Full Faith and Credit Clause D) Revenue Sharing 2. The National Government can enter a State to restore order in cases of
  88. Math

    If the manufacturer from the question above charges a 4½% late fee, how much would City Cellular owe if it did not pay the balance by the net date?
  89. Math

    City Cellular purchased $28,900 in cell phones on April 25. The terms of sale were 4/20, 3/30, n/60. Freight terms were F.O.B. destination. Returned goods amounted to $650. What is the net amount due if City Cellular sends the manufacturer a partial
  90. Math

    Using your answer to the question above, what is the net dollar amount of that rose order?
  91. Math

    Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount?
  92. physics

    A block with mass m=6.00kg slides down a surface inclined at 37° to the horizontal. The coefficient of kinetic friction is 0.20. A string attached to the block is wrapped around a flywheel on a fixed axis as seen in the figure. The flywheel has mass 25.0
  93. Math

    Find the radius of a right circular cone if its volume is 1.5 times its lateral area and its radius is half its slant height.
  94. Calculus

    Find the dimension of a rectangle with perimeter 295 whose area is as large as possible
  95. Biology

    The term "worm" is a description of a body shape. A worm had a long, thin body. Aew all worms in the same phylum? How do you know?
  96. science

    light trsavels at 3*10 m/s. an astrounaut shines a flash light in space. 4 hours later a martian sees a light from the astrounaut. how far away is mars from the astrounaut?
  97. Chemistry

    What is the theoretical mass of the products in the double displacement reaction: CaCl2 (aq) + Na2CO3 (aq) → 2NaCl (aq) +CaCO3 (aq)
  98. math

    A building lot in a city is shaped as a 30° -60° -90° triangle. The side opposite the 30° angle measures 41 feet. a. Find the length of the side of the lot opposite the 60° angle. b.Find the length of the hypotenuse of the triangular lot. c. Find the
  99. Chemistry Help!

    If 100 grams of KClO3 are heated to form KCl and O2 according to the equation KClO3 ¨ KCl + O2 (Hint: You need to balance the equation) a. How many moles of KClO3 reacted? b. How many moles of KCl are formed? c. How many grams of KCl are formed? d. how
  100. Physics

    What is the magnitude of the force a +29 charge exerts on a +3.3 charge 48 away?


  1. 1
  2. 2
  3. 3
  4. 4