Newest questions and responses by Allison
  1. Physics

    A point charge is placed at the origin an x, y coordinate grid. Then, a curve is drawn to connect all the points in the xy plane where the electric field has magnitude 1.0 N/C. What best describes the curve? A. a wide loop that passes through the origin B.

    asked on February 3, 2019
  2. math

    You invested a total of $15,000 at 4 1/2% and 5% simple interest. During one year, the two accounts earned $715. How much did you invest in each account

    asked on January 31, 2019
  3. precalculus

    can cot ever equal -0.5 ? my teacher never covered it, and i don't think it can?

    asked on January 28, 2019
  4. pre-calc

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

    asked on May 10, 2018
  5. 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.

    asked on May 10, 2018
  6. 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?

    asked on May 10, 2018
  7. 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?

    asked on April 9, 2018
  8. 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?

    asked on December 7, 2017
  9. Chemistry

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

    asked on October 11, 2017
  10. 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

    asked on October 9, 2017
  11. 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

    asked on October 1, 2017
  12. 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.

    asked on September 12, 2017
  13. 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

    asked on May 3, 2017
  14. Politics

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

    asked on March 9, 2017
  15. 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!

    asked on March 7, 2017
  16. Chemistry

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

    asked on February 7, 2017

    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,

    asked on February 3, 2017
  18. History

    What diseases were originated or were most common in the 12th century?

    asked on November 13, 2016
  19. 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

    asked on November 10, 2016
  20. 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.

    asked on November 6, 2016
  21. 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

    asked on October 13, 2016
  22. World History

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

    asked on September 20, 2016
  23. math

    Name the sets of numbers to which the given number belongs 60/47

    asked on July 7, 2016
  24. 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?

    asked on May 19, 2016
  25. geometry

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

    asked on March 25, 2016
  26. 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?

    asked on March 15, 2016
  27. math

    lim f(x) xcubed - 8/ xsquared -5x+8 x --2

    asked on March 9, 2016
  28. 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.

    asked on February 18, 2016
  29. 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

    asked on February 14, 2016
  30. 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?

    asked on January 26, 2016
  31. 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

    asked on December 2, 2015
  32. 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

    asked on November 30, 2015
  33. 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

    asked on November 18, 2015
  34. Geometry

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

    asked on October 5, 2015
  35. Reading

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

    asked on September 21, 2015
  36. 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

    asked on June 11, 2015
  37. Chemistry

    Find the Density of xenon of STP

    asked on March 10, 2015
  38. Chemistry

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

    asked on March 10, 2015
  39. chemistry

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

    asked on March 10, 2015
  40. Chemistry

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

    asked on March 10, 2015
  41. 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.

    asked on March 10, 2015
  42. Chemistry

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

    asked on March 10, 2015
  43. chemistry

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

    asked on March 10, 2015
  44. Chemistry

    how to prepare 100.0 ml of 0.2 M solution of sodium hydroxide

    asked on March 10, 2015
  45. 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

    asked on March 10, 2015
  46. chemisty

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

    asked on March 10, 2015
  47. chemistry

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

    asked on March 10, 2015
  48. chemistry

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

    asked on March 10, 2015
  49. 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

    asked on March 10, 2015
  50. 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

    asked on March 10, 2015
  51. chemistry

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

    asked on March 10, 2015
  52. chemistry

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

    asked on March 10, 2015
  53. Chemistry

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

    asked on March 10, 2015
  54. 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

    asked on February 15, 2015
  55. 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),

    asked on January 28, 2015
  56. 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

    asked on January 27, 2015
  57. 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?

    asked on January 23, 2015
  58. 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

    asked on December 27, 2014
  59. chemistry

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

    asked on December 16, 2014
  60. 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

    asked on December 16, 2014
  61. 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.

    asked on December 5, 2014
  62. maths

    by how much does the 3 in 34685 exceed the 3 in 23487

    asked on September 17, 2014
  63. 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

    asked on May 21, 2014
  64. 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?

    asked on May 15, 2014
  65. 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

    asked on May 14, 2014
  66. 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?

    asked on April 27, 2014
  67. 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?

    asked on April 27, 2014
  68. 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

    asked on April 27, 2014
  69. 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)

    asked on April 23, 2014
  70. Chemistry

    What mass of octane must be burned in order to liberate 5410 kJ of heat?

    asked on April 13, 2014
  71. 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

    asked on April 9, 2014
  72. 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?

    asked on March 11, 2014
  73. 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

    asked on February 21, 2014
  74. 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?

    asked on February 19, 2014
  75. 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+.

    asked on February 16, 2014
  76. physics

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

    asked on November 17, 2013
  77. Chemistry

    What is the theoretical yield of ethyl chloride in the reaction of 19.2g g of ethylene with 48g g of hydrogen chloride?

    asked on November 3, 2013
  78. 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

    asked on October 19, 2013
  79. 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?

    asked on August 24, 2013
  80. 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

    asked on August 24, 2013
  81. 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

    asked on July 23, 2013
  82. 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

    asked on July 9, 2013
  83. 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?

    asked on July 5, 2013
  84. 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

    asked on June 27, 2013
  85. 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

    asked on June 27, 2013
  86. 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

    asked on June 27, 2013
  87. 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

    asked on June 26, 2013
  88. 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

    asked on June 26, 2013
  89. government

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

    asked on June 26, 2013
  90. 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

    asked on June 26, 2013
  91. 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?

    asked on May 21, 2013
  92. 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

    asked on May 21, 2013
  93. Math

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

    asked on May 21, 2013
  94. 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?

    asked on May 21, 2013
  95. 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

    asked on May 1, 2013
  96. 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.

    asked on April 30, 2013
  97. Calculus

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

    asked on April 30, 2013
  98. 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?

    asked on April 26, 2013
  99. 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?

    asked on April 17, 2013
  100. Chemistry

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

    asked on April 5, 2013


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