Marc

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. 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
  3. 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
  4. 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
  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. 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
  8. 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
  9. math

    Suppose you win $3 if you roll a sum of 2,3,4, or 5, you lose $15 if you roll a sum of 6,7, or 8, and you win $5 if you roll a sum of 9,10,11, or 12. Find the expected value (mean of the probability distribution) of how much you win or lose for the game.

    asked on October 8, 2019
  10. math

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

    asked on September 2, 2014
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  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. Math

    If Micheal Jordan when standing with his arms straight up in the air, is 7 feet 8 inches tall ; how many inches would he have to jump to touch the basketball rim that is 10 feet high above the floor?

    asked on April 5, 2020
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. calculus

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

    asked on September 20, 2018
  27. 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
  28. 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
  29. 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
  30. Calculus

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

    asked on April 10, 2016
  31. 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 text

    asked on March 14, 2016
  32. 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
  33. 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
  34. 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
  35. 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
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. 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
  43. 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
  44. 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
  45. math

    -5,2 translated 8 units to the right and 3 units up

    asked on May 4, 2020
  46. 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
  47. Calculus

    Knowing that Pi/2 < x < Pi and that 0

    asked on January 25, 2017
  48. Calculus

    Find two non-intersecting intervals where f(x) +12x^4 + 50x^3 + 80x^2-100 has at least one root. Justify your answer.

    asked on January 24, 2017
  49. 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
  50. 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
  51. 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
  52. 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
  53. math

    what is the circumference of a circle with a diameter of 50 mm

    asked on May 21, 2016
  54. 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
  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 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
  57. Calculus Help Stuck Part 2?

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

    asked on April 12, 2016
  58. 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
  59. Calculus

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

    asked on April 11, 2016
  60. 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
  61. 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
  62. 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
  63. Math

    Jessica earns $53.35 in 5.5 hours. How much does Jessica earn in 1 hour?

    asked on March 8, 2016
  64. 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
  65. 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
  66. Calculus/Math

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

    asked on October 6, 2015
  67. algebra

    Shoe O Rama is having a 20 % off sale this friday. Which equation below shows how to find the sale price, s, as a function of the original price, p?

    asked on June 18, 2015
  68. 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
  69. 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
  70. 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
  71. geometry

    v=1/3TTr^2h;

    asked on September 11, 2014
  72. algebra

    A motorboat left a harbor and traveled to an island at an average rate of 11 knots. The average speed on the return trip was 10 knots. If the total trip took 4.2 hours, how far is the harbor from the island

    asked on September 11, 2014
  73. MATH

    v=1/3ttr^2h; h(geometry)

    asked on September 11, 2014
  74. 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
  75. 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
  76. Algebra

    Solve h=2f/m+1

    asked on May 14, 2014
  77. math

    Three men, A, B and C agree to share the expense of a fishing expedition in the ratio 2:3:4. A pays $25 for the hire of the boat, B pays $70 for the meal and C pays $49 for traveling expenses. How much must A and C pay B to settle their agreed shares?

    asked on March 15, 2014
  78. 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
  79. 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
  80. 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
  81. 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
  82. 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
  83. 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
  84. 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
  85. 8th grade science

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

    asked on February 3, 2013
  86. science

    Does the human tongue have definite areas for certain tastes

    asked on February 3, 2013
  87. math

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

    asked on December 18, 2012
  88. 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
  89. Physics

    The weight of a rock on the moon is 0.85 N. If acceleration due to gravity on the moon is 1.7 m/s2, what will be its weight on the earth

    asked on November 10, 2012
  90. science

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

    asked on October 2, 2012
  91. 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
  92. math

    i am a three digit number.if you subtract 419 from me the remainder is 126.what number am i?

    asked on September 4, 2012
  93. 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
  94. 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
  95. 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
  96. 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
  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. physics

    one of the factors that limits the reach of a crane is the moment created by the load, measured with the respect to an axis A at the base of the front support. if the boom shown is 30m long, and at an angle of 25 degrees with the horizontal, determine the

    asked on September 13, 2011
  100. 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

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