marc

Most popular questions and responses by marc
  1. Ap physics

    Determine the mass of the earth from the known period and the distance of the moon

    asked on October 25, 2016
  2. math

    what is 226.08 rounded to the nearest tenth? I'm stuck I believe it would be 226.9

    asked on February 3, 2016
  3. Language Arts

    Excerpt from: Norse Mythology Part D Kate McConnaughey Then Loki, the spirit of evil, will break loose from the fetters with which the gods have bound him. (31) The frost giants join him. They will try to make a secret attack on the gods. But Heimdall, the

    asked on January 27, 2016
  4. English

    After the basketball game the students had a dance at the school. . How should the sentence be correctly punctuated? A) Add a comma after game. B) Add a comma after dance. Reactivate C) Change the period to a question mark. Reactivate D) Add an apostrophe

    asked on March 11, 2016
  5. Calculus

    a college is planning to construct a new parking lot. the parking lot must be rectangular and enclose 6000 square meters of land. A fence will surround the parking lot, and another fence parallel to one of the sides will divide the parking lot into two

    asked on November 26, 2010
  6. algebra

    The vendor of a coffee cart mixes coffee beans that cost $8 per pound with coffee beans that cost $4 per pound. How many pounds of each sould be used to make a 60-pound blend that sells for $5.25 per pound? $8 coffee __________ $4 coffee __________

    asked on September 27, 2014
  7. chem

    A metal oxide reacts with water to produce a metal hydroxide. What additional information would you need to determine the percent yield of metal hydroxide from this reaction?

    asked on April 8, 2010
  8. science

    A 52.0 kg male dancer leaps 0.37 m high. (a) With what momentum does he reach the ground? (c) As the dancer lands, his knees bend, lengthening the stopping time to 0.050 s. Find the average force exerted on the dancer's body. (d) Compare the stopping force

    asked on December 9, 2007
  9. English

    While Sara was traveling in England; she met an interesting old man. . Choose the answer that is the most effective substitute for the underlined part of the sentence. If no substitute is necessary, choose ‘Leave as is.’ A) in England. She met B) in

    asked on March 11, 2016
  10. math

    if a pie is cut into sixths how many pieces would there be ?

    asked on September 2, 2014
  11. calculus

    At noon, ship A starts sailing due east at the rate of 20km/hr. Ath the time, ship B, which is located 100km east of ship A initially, starts sailing on a course 60 degrees north of west at the rate of 10km/hr. How fast is the distance between the two

    asked on March 24, 2011
  12. Math

    Please help me and show an understanding please, so I see how to figure them out. Lee deposited $28,000 in an interest-bearing checking account that earns 3.5% interest compounded daily. Find the amount after 68 days. a.$183.16 b.$28,180.46 c.$28,183.16

    asked on February 20, 2015
  13. Physics

    A 200 g object on a frictionless, horizontal lab table is pushed against a spring of force constant 35.0 N/cm and then released. Just before the object is released, the spring is compressed 11.0 cm. How fast is the object moving when it has gained half of

    asked on November 24, 2017
  14. Math

    Samantha saved $13 by buying a used DVD. She paid $5 less than half the original price of a new one. How much did Samantha pay for a used DVD?

    asked on November 15, 2011
  15. algebra

    A man flies a small airplane from Fargo to Bismarck, North Dakota --- a distance of 180 miles. Because he is flying into a head wind, the trip takes him 2 hours. On the way back, the wind is still blowing at the same speed, so the return trip takes only 1

    asked on February 13, 2017
  16. computer programming

    Design the logic for a program that allows a user to enter 10 numbers, then displays each and its difference from the numeric average of the numbers

    asked on February 22, 2017
  17. Mechanics:Statics

    A man weighs 900N on the surface of the earth. Compare his weight in an airplane flying at an elevation of 9000m. Note that the radius of Earth is 6378km.

    asked on April 19, 2013
  18. English

    How does the author arrange this passage? A) He uses dialogue in the first half to express the confusion over the phrase "Don't give up the ship." He uses a rhyming poem in the second half to explain the phrase's source. B) He uses dialogue in the first

    asked on March 11, 2016
  19. statistics

    Among the four northwestern states, Washington has 51% of the total population, Oregon has 30%, Idaho has 11%, and Montana has 8%. A market researcher selects a sample of 1000 subjects, with 450 in Washington, 340 in Oregon, 150 in Idaho, and 60 in

    asked on December 2, 2011
  20. macroeconomics

    25. The following table shows the price of a specific stereo receiver for a five-year period. Using Year 1 as the base year, calculate the price index for each year. Year Price Price index (answers using Year 1 = 100) 1 $112 ___ 2 144 ___ 3 160 ___ 4 176

    asked on October 11, 2011
  21. into to algebra

    You need a 45% alcohol solution. On hand, you have a 150 mL of a 15% alcohol mixture. You also have 70% alcohol mixture. How much of the 70% mixture will you need to add to obtain the desired solution?

    asked on February 13, 2017
  22. Program Design and Development

    Design a Visual Logic flowchart for a program that prompts the user to enter ten numbers one at a time. After the user has entered all ten number the program will then print out the total of those ten number and quit? In Visual Logic use console I/O?

    asked on February 12, 2017
  23. macroeconomics

    18. The following is a list of figures for a given year in billions of dollars. Using this data, compute: (a) GDP; (b) NDP; (c) NI; (d) PI; (e) DI; (f) Net exports. Transfer payments $ 16 Government purchases 80 Personal taxes 38 Corporate income taxes 28

    asked on October 11, 2011
  24. Language Arts

    Which words should be deleted to remove redundancy? At first, my initial reaction was to cancel my subscription to the monthly magazine because the customer service representative was so rude to me. A) At first, B) monthly magazine C) my initial reaction

    asked on January 27, 2016
  25. macroeconomics

    22. The following table shows the price of a specific stereo receiver for a five-year period. Using year 3 as the base year, calculate the price index for each year. Year Price Price index 1 $ 88 ___ 2 $100 ___ 3 $120 ___ 4 $132 ___ 5 $140 ___

    asked on October 11, 2011
  26. Language Arts

    When He-Ping says that he wouldn't miss it for the world, he means that A) he is not sure. Eliminate B) he really wants to go. C) he thinks his mom should know. D) he does not know if he is allowed. I believe it is B.

    asked on January 27, 2016
  27. chemistry

    Hexane is a hydrocarbon (a molecule containing only carbon and hydrogen) with a molecular weight of 86.18 g/mol, a density of 0.660 g/mL, and a boiling point of 69C . Pentanol is an alcohol (a hydrocarbon with a "OH" group attached to one of its carbons)

    asked on February 4, 2008
  28. Calculus Answer Confirming Not Sure Im Right Help?

    Evaluate the lim a. lim x--> 64 (cube root x-4/x-64) (∛x-4)/(x-64) -> 0/0 so then let cube root x = u u-4/u^3-64 u-4/u^3-64 = u-4/u-4(u^2+4u+16) the u-4 cancel each other out leaving lim x->64 = 1/u^2+4u+16 1/64^2+4(64)=16 oddly i find the number to

    asked on April 12, 2016
  29. math

    Two functions, A and B, are described as follows: Function A y = 9x + 4 Function B The rate of change is 3 and the y-intercept is 4. How much more is the rate of change of function A than the rate of change of function B? 2 3 6 9 I believe the answer is

    asked on February 1, 2016
  30. math

    Two numbers are such that their difference, their sum, and their product are in the ratio 1 : 4 : 15. What are the two numbers?

    asked on March 15, 2014
  31. Chemistry

    so if the equation I'm using is 3CuSO4+2AL(NO3)3 arrow 3CU(NO3)2+Al2(SO4)3 how many moles of CuSO4 would be needed to produce 8 moles of Al2(SO4)3? Would the answer be 8?

    asked on April 21, 2009
  32. Program Design and Development

    Design the pseudocode for a program that outputs numbers in reverse order from 10 down to 1 using a loop?

    asked on February 12, 2017
  33. algebra

    A 3-mi cab ride costs $3.00. A 6-mi cab ride costs $4.80. Find a linear equation that models cost c as a function of distance d. write your linear equation using function notation.

    asked on January 13, 2010
  34. macroeconomics

    27. The following data show nominal GDP and the appropriate price index for several years. Compute real GDP for each year and indicate whether you have “inflated” or “deflated” nominal GDP in finding real GDP. All GDP are in billions. Nominal Price

    asked on October 11, 2011
  35. English

    Choose the sentence that contains no comma errors. A) The book, that I borrowed from Elizabeth last week was excellent. B) About four thousand years ago, Stonehenge, was a center of worship. C) Alice Jones lived at 15, Cedar Street NE, Colorado Springs

    asked on March 11, 2016
  36. statistics

    Use the given information to find the P-value. Also, use a 0.05 significance level and state the conclusion about the null hypothesis (reject the null hypothesis or fail to reject the null hypothesis). 1) Vvith H1: p * 0.733, the test statistic is z =

    asked on April 21, 2010
  37. physics

    Please decide which of the following statements for car collisions are true or false. 1)Crumple zones on cars are parts of the front of the car that are designed to receive maximum deformation during a head-on collision. The essential safety benefit of

    asked on April 11, 2012
  38. Physics

    Wheel A of radius ra = 13.9 cm is coupled by belt B to wheel C of radius rc = 34.3 cm. Wheel A increases its angular speed from rest at time t = 0 s at a uniform rate of 5.7 rad/s2. At what time will wheel C reach a rotational speed of 168.2 rev/min,

    asked on February 10, 2012
  39. Calculus

    a spherical ballon is being inflated at a constant rate of 25 cm^3/sec. At what rate in cm/sec is the radius of the ballon changing when the radius of the ballon is 2 cm? (VOLUME SPHERE FORMULA 4/3 pi r^3)

    asked on November 26, 2010
  40. Science

    Which solution will best allow the movers to achieve their goal? A) Change the width of the ramp from 4 meters to 3 meters. B) Change the length of the ramp from 4 meters to 5 meters. C) Change the height of the ramp from 3 meters to 4 meters. D) Change

    asked on March 3, 2016
  41. math

    The lines a and b intersect at point D. What is the value of z? z = Can you please help em solve im really stuck and confused?

    asked on January 26, 2016
  42. physics

    A mass of 710 kg is located at the origin. A second mass, 44.0 kg, is located at the point (0.216,0.702) m. Find the magnitude of the gravitational force on the 44.0 kg mass due to the 710 kg mass at the origin. I got: 3.86×10-6 N Enter the x and y

    asked on April 28, 2012
  43. Statistics

    The annual precipitation for one city is normally distributed with a mean of 72 inches and a standard deviation of 3.5 inches. In 95% of the years, the precipitation in this city is between___ and ___

    asked on July 23, 2012
  44. science

    A tick that feeds on the blood of animals is a - a. parasite b. host c. predator d. competitor ???help please?

    asked on May 14, 2008
  45. calculus

    Find the area bounded by y - axis and x = 4 - y^(2/3)?

    asked on September 20, 2018
  46. Physics

    A 4.70 kg chunk of ice is sliding at 15.0 m/s on the floor of an ice-covered valley when it collides with and sticks to another 4.70 kg chunk of ice that is initially at rest. Since the valley is icy, there is no friction. After the collision, the blocks

    asked on November 24, 2017
  47. Math

    Mrs. Beck paid a total of $34 for 4 identical bowls and 2 identical plates. A bowl cost $4 more than a plate. How much did she pay for each bowl?

    asked on January 7, 2017
  48. Calculus

    From first principles (ie using the tangent slope method), find the slope of the following curves at the given value of x. f(x)=2x^2− 6x at x = 3

    asked on April 14, 2016
  49. Physics

    An 80 kg man climbs a 50 m-high hill in 20 minutes. What is the average power in watts he expends climbing the hill?

    asked on November 20, 2012
  50. Physics

    Wheel A of radius ra = 13.9 cm is coupled by belt B to wheel C of radius rc = 34.3 cm. Wheel A increases its angular speed from rest at time t = 0 s at a uniform rate of 5.7 rad/s2. At what time will wheel C reach a rotational speed of 168.2 rev/min,

    asked on February 10, 2012
  51. macroeconomics

    23. The next four questions refer to the following price and output data over a five-year period for an economy that produces only one good. Assume that year 2 is the base year. Units of Price Year output per unit 1 16 $2 2 20 3 3 30 4 4 36 5 5 40 6 (a) If

    asked on October 11, 2011
  52. calculus

    which of the following is an equation of the line tangent to the graph of y = (x^3)-x at the point where x =2: a) y - 6 = 4(x-2) b) y - 6 = 5(x-2) c) y - 6 = 6(x-2) d) y - 6 = 11(x-2) e) y - 6 = 12(x-2) thanks!

    asked on December 14, 2010
  53. FRACTIONS

    IF 20 COUNTERS ARE A WHOLE SET, WHAT FRACTION OF THE SET IS 16 COUNTERS?

    asked on December 10, 2007
  54. computer programming

    Design the pseudocode for a program that allows a user to enter 10 numbers, then displays them in the reverse order of their entry

    asked on February 22, 2017
  55. Calculus (Im I Doing This Right???? Im Unsure)

    From first principles (ie using the tangent slope method), find the slope of the following curves at the given value of x. f(x)=2x^2−6x at x = 3 f(x)=2x^2-6x f(x+h)= 2(x+h)^2-6(x+h) =2x^2+4xh+2h^2-6x-6h lim h-->0 f(x+h)-f(x)/h =2x^2+4xh+2h^2-6x-6h -

    asked on April 15, 2016
  56. Calculus

    Determine the following limits if it exists. a. lim x-->5 (4x/x-5)

    asked on April 10, 2016
  57. math

    there are 45 children in a class.if there are 3 more girls than boys,how many are girls?

    asked on September 4, 2012
  58. Spanish

    What are subjunctive verbs in Spanish? I've learned them before but I don't understand them.

    asked on August 22, 2010
  59. chemistry

    Hexane is a hydrocarbon (a molecule containing only carbon and hydrogen) with a molecular weight of 86.18 g/mol, a density of 0.660 g/mL, and a boiling point of 69C . Pentanol is an alcohol (a hydrocarbon with a "OH" group attached to one of its carbons)

    asked on February 4, 2008
  60. Scienc

    The dissolution of ammonium nitrate in water changes the temperature of water from 21C to - 1C(ice). If the molar enthalpy of ammonium nitrate is 25.7kj/mol. Determine the mass of ammonium nitrate that was dissolved

    asked on May 23, 2016
  61. algebra

    on an expressway, the recommended safe distance between cars in feet is given by 0.019v^2+v+14, where v is the speed of the car in miles per hour. Find the safe distance when the following takes place( round answer to three decimal places). v=35 mph

    asked on September 27, 2014
  62. PHYSICS

    An electron is initially at rest in, but not on the axis of, a solenoid that is carrying a steady current I directed as shown in the cross section below. The electron is initially at rest on the -x axis. The current in the solenoid is suddenly increaed to

    asked on December 15, 2013
  63. science

    Does the human tongue have definite areas for certain tastes

    asked on February 3, 2013
  64. physics

    A bullet of mass m = 5.89 g is fired into a block of mass M = 3.09 kg that is initially at rest on the edge of a smooth table. (The table top is 0.83 m above the floor.) The bullet ends up stuck in the block, and together they fly off the table and fall to

    asked on April 8, 2012
  65. physics

    A person is to run a circular track with a radius of 93 meters. The person starts at a certain spot and runs 3 and 1/2 times around the track in a time of 227 seconds. Find the magnitude of average velocity for this trip (|vav|) and find the average speed

    asked on September 3, 2011
  66. Calculus

    which of the following is an equation of the line tangent to the graph of y = (x^3)-x at the point where x =2: a) y - 6 = 4(x-2) b) y - 6 = 5(x-2) c) y - 6 = 6(x-2) d) y - 6 = 11(x-2) e) y - 6 = 12(x-2) thanks!

    asked on December 14, 2010
  67. math

    A prescription calls for the 4% Pilocar with a Sig. of "gtt i OU tid". How many 15-ml bottles should be dispensed for a 90 days supply if the eye drop bottle delivers 20 drops per ml? Somehow, it is a bit confusing. I tried: 1 bottle/ml soln * ml soln/20

    asked on February 15, 2010
  68. kindergarten math

    what does this mean draw a piece of yarn 3 counters long?

    asked on January 20, 2010
  69. Math

    Suppose you have a coin that lands on Heads with probability 0.6 There are three coin flips defined as X. Heads count 1 and tails count 0 – e.g., if three heads then X= 3; if a head and two tails then X = 1; if three tails the X = 0. What is the expected

    asked on September 11, 2016
  70. Calculus (Im I Doing This Right???? Im Unsure)

    From first principles (ie using the tangent slope method), find the slope of the following curves at the given value of x. f(x)=2x^2−6x at x = 3 f(x)=2x^2-6x f(x+h)= 2(x+h)^2-6(x+h) =2x^2+4xh+2h^2-6x-6h lim h-->0 f(x+h)-f(x)/h =2x^2+4xh+2h^2-6x-6h -

    asked on April 16, 2016
  71. algebra

    on an expressway, the recommended safe distance between cars in feet is given by 0.019v^2+v+14, where v is the speed of the car in miles per hour. Find the safe distance when the following takes place( round answer to three decimal places). v=35 mph

    asked on September 27, 2014
  72. statistics

    The trends in international mathematic and science study (TIMSS) in 2007 examined eighth grade proficiency in math and science. The mean mathematics scale score for the sample of eighth grade students in the US was 508.5 with a standard error of 2.83.

    asked on August 2, 2014
  73. Algebra

    Solve h=2f/m+1

    asked on May 14, 2014
  74. Mechanics:Statics

    Two 10 kg spheres are placed 500mm apart. Express the gravitational attraction acting on one of the spheres as a percentage to its weight on earth.

    asked on April 19, 2013
  75. science

    make a graphic organizer to show ways how ways to cause physical changes to a piece of paper

    asked on October 2, 2012
  76. calculus

    a rectangle with one side on the x axis and one side on the line x=2 has it upper left vertex on the graph of y=x^2, for what values of x does the area of the rectangle attain its maximum value?

    asked on November 26, 2010
  77. math

    how do I solve 1/3 x = 5/12

    asked on January 24, 2010
  78. english

    on which line is there a spelling mistake. 1/ reported to the HSE or local authority immediately. A major injury is 2/ construction industry. About one hundred and forty are fatal. This is 3/ hospital treatment lasting more than twenty-four hours.

    asked on December 9, 2008
  79. physics

    A lamp is moved from 26 cm to 90 cm above the pages of a book. Compare the illumination on the book before and after the lamp is move.

    asked on May 12, 2008
  80. science

    how many bones are there in the human skeletal

    asked on February 27, 2008
  81. math

    13-b/6=2-0.5b/4 I cross muliptiled and I got 12-3b=52-4b. I'm stuck. What do I do now?

    asked on November 1, 2007
  82. lattice math

    Why should we estimate before solving a problem? We should estimate before solving a problem to make sure our answer is close to the real answer. Here's a simple problem. Suppose we want to find wnat a 6% tax on a $10 purchase would be. When you do the

    asked on October 3, 2006
  83. pre-calculus

    A plane flies at a speed of 150mph at an angle of 10 degrees, after 6 seconds, the plane keeps the same speed but changes to an angle 18 degrees. How long in minutes would it take the plane to travel to a cruising altitude of 30,000 feet?

    asked on June 7, 2016
  84. Calculus Help Stuck Part 2?

    Evaluate the lim a. lim x--> 64 (cube root x-4/x-64)

    asked on April 12, 2016
  85. Calculus Help Stuck Part 2?

    b.Determine the lim x-->4 (x^2+x-20/8-2x) What Im stuck on is this f(4)= 4^2+4-20 / 8-2(4) f(4)= 0/0 x^2+x-20/8-2x = (x-4)(x+5)/-2(x-4) What do I do next I'm so confused ik i would eliminate the x-4 from numerator and denominator but what would i do with

    asked on April 11, 2016
  86. social studies

    The Supreme Court decision in Gray v. Sanders (1963) was instrumental in A) establishing the "one person, one vote" standard for legislative districting. B) overturning the long-standing "separate but equal" standard in education. C) legalizing a woman's

    asked on March 31, 2016
  87. Math

    Arrange these numbers from least to greatest: 2 over 5 comma text   end text − 3 over 7 comma text end text 2 over 3. A. 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3 B. − 3 over 7 comma text end text 2 over 5 comma text end

    asked on March 14, 2016
  88. Calculus/Math

    lim ((1-2x)/(√1+x^2)-1) x→∞ Find the value.

    asked on October 6, 2015
  89. Algebra

    The difference of two whole numbers is 27.The greater number is 3 less than twice the smaller.What are the numbers?

    asked on April 1, 2015
  90. MATH

    How many liters of water should be evaporated from 110 liters of a 12% saline solution so that the solution that remains is a 20% saline solution

    asked on September 11, 2014
  91. math

    calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Divide: 3/4 ÷ 3 =

    asked on September 17, 2013
  92. math

    calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Multiply: (2/3) (3/5) =

    asked on September 17, 2013
  93. math

    calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Subtract: 3/4 - 3/8 =

    asked on September 17, 2013
  94. math

    calculate the following, leaving your answer either as a fraction (lowest) or in decimal form Add: 3/8 + 1/2 + 3/4+=

    asked on September 17, 2013
  95. 8th grade science

    Good hypothesis for does the human tongue have definite areas for certain tastes

    asked on February 3, 2013
  96. math

    First estimate,then multiply to get the exact answer. 6 2/3 X 3 4/11 X 5

    asked on December 18, 2012
  97. math

    i do not get this question 24 / x = 4

    asked on February 2, 2012
  98. physics

    A 0.58 kg football is thrown with a velocity of 15 m/s to the right. A stationary receiver catches the ball and brings it to rest in 0.017 s. What is the force exerted on the receiver? Answer in units of N

    asked on January 30, 2012
  99. economics

    in vietnam, a paddy of rice is transplanted using 20 workers with wicker backets, in south korea a paddy of rice is transplanted using one worker and a mechanical rice transplanter. using a isoquant-isocost line graph, illustrate why these two different

    asked on February 28, 2011
  100. Managerial Accounting

    The company reported a 6% operating margin on sales, a 12% pretax operating return on total assets, and $500 million of average total assets. I have calculated the operating income to $60,000,000. How do I calculate the total sales and total asset turn

    asked on January 30, 2010

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