Popular questions and responses by Aj
  1. geometry

    Which equation in slope-intercept form represents a line that passes through the point (5,−1) and is parallel to the line y=2x−7? y=2x−11 y=−9x−7 y=2x−9 y=−12x−7 y=−11x−7 B?

    asked on August 4, 2020
  2. Math

    Nine more than the product of 22

    asked on July 15, 2020
  3. History

    In 1885, European leaders at the Berlin Conference agreed to the rules for dividing African territory. How did this agreement change the geographic characteristics of Africa? a)Large wildlife reserves were created throughout Africa. b)Ethnic groups were

    asked on July 8, 2020
  4. physics

    Determine the resulting temperature when 150g of ice at 0°C is mixed with 300g of water at 50°C

    asked on March 9, 2011
  5. algebraic modeling

    A toy manufacturer determines that the daily cost,C, for producing x units of a dump truck can b approximated by the function c(x)=0.005x^2-x+109 I got that the manufacturer must produce 100 units per day... What is the minimum daily cost?

    asked on May 13, 2015
  6. World History

    What was a key battlefront between Great Britain and Turkey in World War I? Battle of Verdun Gallipoli Campaign Brusilov Offensive Battle of the Somme c?

    asked on July 11, 2020
  7. Chemistry

    When .560 g of Na(s) reacts with excess F2(g) to form NaF(s), 13.8 kJ of heat is evolved at standard-state conditions. What is the standard enthalpy of formation of NaF(s)? Start off by balancing the equation: 2Na(s) + F2(s) ---> 2NaF(s) Then make it for

    asked on March 26, 2017
  8. Math

    If sin(x) = 1/3 and sec(y) = 29/21 , where x and y lie between 0 and π/2, evaluate the expression using trigonometric identities. (Enter an exact answer.) cos(2y)

    asked on September 23, 2013
  9. Physics

    A variable-length air column is placed just below a vibrating wire that is fixed at the both ends. The length of air column open at one end is gradually increased from zero until the first position of resonance is observed at 20 cm. The wire is 115.4 cm

    asked on October 1, 2012
  10. govt

    Which act is an example of governor's use of legislative powers? a firing a parks commissioner b rejecting part of a recycling bill c pardoning a former senator d assessing flood-control efforts

    asked on July 14, 2011
  11. History

    What led to the Boxer Rebellion? The Open Door policy led other nations to carve out spheres of influence in China, leading to condemnation of the imperialists. European attempts to introduce industrialization in mainland Asia led the Chinese to react by

    asked on July 9, 2020
  12. Math

    If 1 pound, 12 ounces of fish cost $2.24, what is the cost of the fish per pound?

    asked on November 26, 2017
  13. Chemistry

    Given H2(g) + (1/2)O2(g) ---> H2O(l), dH = -286 kJ/mol, determine the standard enthalpy change for the reaction 2h2O(l) ---> 2H2(g) + O2(g) 2H2O(l) ---> 2H2(g) + O2(g) H2(g) + (1/2) O29g) ---> H2O (l) : dH = -286 kJ/mols 2H2O(l) ---> 2H2(g) + 2O2(g) :

    asked on March 26, 2017
  14. arithmetic

    If you have 3 cups of pineapple juice and, how many total cups of punch can you make? Table: Ginger Ale - 40% OJ 25% Pineapple juice 20% Sorbet 15

    asked on November 3, 2014
  15. Physics

    A certain lightbulb has a tungsten filament with a resistance of 28 Ω when cold and 144 Ω when hot. If the equation R = R0 [1 + α ∆T ] can be used over the large temperature range involved here, find the temperature of the fila- ment when it is hot.

    asked on October 31, 2012
  16. Physics

    If you are wearing a watch, what energy changes are taking place in it right now?

    asked on March 16, 2010
  17. Physics

    a) The recommended daily allowance (RDA) of the trace metal magnesium is 410 mg/day for males. Express this quantity in ?g/s. Express this quantity in b) For adults, the RDA of the amino acid lysine is 12 mg per kg of body weight. How many grams per day

    asked on June 9, 2017
  18. MATH HELP!!


    asked on August 20, 2014
  19. Math

    Calculate the number of sides of a regular polygon whose interior angles are each 156 degrees.

    asked on December 4, 2011
  20. math

    Oregon is about 400 miles from west to east, and 300 miles from north to south. If a map of Oregon is 15 inches tall (from north to south), about how wide is the map? PLEASE HELP AND EXPLAIN IT Set up a proportion: 15/300 (the ratio of inches to miles,

    asked on January 16, 2007
  21. Career

    QUESTION 1 -It is important to upgrade your skills as the career world is in a constant state of change. *True False QUESTION 2 -An important component of career planning is completing career research. *True False QUESTION 3 -When taking personal

    asked on May 21, 2020
  22. Math Slope

    Jose the plumber charges $65 per hour to fix your plumbing. He uses the equation C=65H+100 to determine the charge of his services, C, after working h hours. What is the Y intercept? What does it represent in the context of the problem.

    asked on December 30, 2016
  23. government

    Which institution developed outside the limits of the written Constitution of the United States?

    asked on February 10, 2012
  24. physics

    A 500g block is released from rest and slides down a frictionless track that begins 2m above the horizontal. At the bottom of the track, where the surface is horizontal, the block strikes and sticks to a light spring with a spring constant of 20.0N/m. Find

    asked on August 10, 2011
  25. math

    (a). Determine the DFS tree of K3,3. (b). Determine the BFS tree of K3,3.

    asked on March 14, 2011
  26. Math

    (a) In 2000 a club has 40 members who each pay $120 annual subscription. What is the total income from subscriptions? (b) In 2001 the subscription is increased by 35% abd the membership increases to 65. (i) What is the original subscription? (ii) What is

    asked on September 27, 2010
  27. Anatomy + Physiology

    What are the building blocks for nucleic acids DNA and RNA? DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are polymers of nucleotides linked in a chain through phosphodiester bonds. In biological systems, they serve as information-carrying

    asked on November 7, 2006
  28. Career

    One of the benefits of career planning as a young adult is: *you can train your brain. you will use the information years from now. you are relying only on yourself for the information. now is a time in your life where you have the least spare time.

    asked on May 21, 2020
  29. math

    A rich uncle wants to make you a millionaire. How much money must he deposit in a trust fund paying 8% compounded quarterly at the time of your birth to yield $1,000,000 when you retire at age 59?

    asked on March 11, 2018
  30. Economics

    Suppose that when disposable income rises from $5.2 trillion to $6.0 trillion, consumption rises from $5.0 trillion to $5.6 trillion. What is the marginal propensity to consume?

    asked on March 7, 2018
  31. calculs

    A page of 150 square inches is to have margins of 1 inch on either side and 1 1/2 inches at the top and bottom, as in the diagram. Find the dimensions of the page that maximize the print area.

    asked on March 4, 2018
  32. Probability

    Four distinct fair of dice are rolled. What is the probability that the sum of the resulting numbers is at least 23?

    asked on February 12, 2018
  33. Algebra

    Jack and Jill regularly run around an 800-meter track, but Jack runs 2 m/s faster. If they start from the same point on this track, and run in the same direction, Jack will eventually pass Jill in 6 minutes and 40 seconds. What is Jill's speed?

    asked on February 8, 2018
  34. Math

    A running track consists of two straight sections with semi-circular ends. If the straight sections measure 100 metres and one compete lap on the inside of the track measures 1/2 k, what is the distance x between the two straights?

    asked on August 15, 2016
  35. Physics

    A dart is thrown horizontally with an initial speed of 14 m/s toward point P, the bull's-eye on a dart board. It hits at point Q on the rim, vertically below P, 0.19 s later. (a) What is the distance PQ? (b) How far away from the dart board is the dart

    asked on September 14, 2014
  36. Physics

    You are standing on a fish pond wishing to catch a fish. How would you aim your fish gun in order to catch a fish which your eyes could see 20 cm below the surface of water ? will u aim higher , lower or exactly on the location of the fish as seen by your

    asked on July 27, 2014
  37. English

    What type of clause or phrase is italicized in the sentence below? The play, a three-act farce, amused everyone.

    asked on September 23, 2013
  38. Physics

    A wire with a circular cross section and a resistance R is lengthened to 3.77 times its original length by pulling it through a small hole. After being pulled through the hole, the total volume of the wire is unchanged. Find the resistance of the wire

    asked on October 31, 2012
  39. Physics

    To demonstrate standing waves, one end of a string is attached to a tuning fork with frequency 120 Hz. The other end of the string passes over a pulley and is connected to a suspended mass M, as shown. The value of M is such that the standing wave pattern

    asked on October 1, 2012
  40. Physics

    The lowest A on a piano has a frequency of 27.5 Hz. Assume: The tension in the A piano wire (of length 0.51 m) is 305 N, and one-half wavelength occupies the wire. What is the mass of m the wire? Answer in units of kg.

    asked on October 1, 2012
  41. Physics

    An ac generator supplies an rms voltage of 5.00 {\rm V} to an RL circuit. At a frequency of 21.0{\rm kHz} the rms current in the circuit is 45.0 {\rm mA}; at a frequency of 26.0{\rm kHz} the rms current is 40.0 {\rm mA}. Find value of L an R ?

    asked on July 30, 2012
  42. algebra

    Joseph always throws change into a can and takes it out every two weeks. This time it is all nickels and dimes. There are six times as many dimes as nickels, and the value of the dimes is $4.95 more than the value of the nickels. How many nickels and dimes

    asked on April 22, 2012
  43. govt

    In 21 states voters may propose and pass laws without the legislature a.by direct initiative b by indirect initiative c by optional referendum d by mandatory referendum

    asked on July 14, 2011
  44. exp of math

    add and simplify 96/125 + 83/125 + 2/15 =

    asked on July 14, 2011
  45. math

    A man is 67 7/18 taller than his son his son is 65 ¾ tall how much taller is the man?

    asked on July 14, 2011
  46. physics

    A projectile was fired at 35 degrees above the horizontal. At the highest point in its trajectory its speed was 200 m/s. If air resistance is ignored, the initial velocity had a horizontal component of 0. How is this possible? Someone explain it for me

    asked on November 30, 2010
  47. Math 5th grade

    how is the number of zeros in the quotient of 420 divided 7 = 60 related to the number of zeros in the dividend

    asked on November 30, 2010
  48. chemistry

    How do you balance this redox rxn? Al + HNO3 ----> Al(NO3)3 + NH4NO3 +H2O

    asked on April 22, 2009
  49. Chemistry

    In a car gas tank, 46.0 g of gasoline burns consuming 173 g of oxygen. The resultant products are carbon dioxide are carbon dixide and water. What is the total combined mass of the products? Would it be 173g - 46.0g = 127g

    asked on February 4, 2008
  50. calculus

    Find the value of $800 deposited in a bank at 10% interest for 8 years compounded in the following ways. (Round your answers to the nearest cent.) (a) annually_________$ (b) quarterly_________$ (c) continuously________$

    asked on March 7, 2018
  51. calculus

    Marine ecologists estimate the reproduction curve for swordfish in a fishing ground to be f(p) = −0.01p^2 + 8p, where p and f(p) are in hundreds. Find the population that gives the maximum sustainable yield, and the size of the yield.

    asked on March 4, 2018
  52. Maths

    17. Atlanta, Georgia, receives an average of 27 inches of precipitation per year, and there has been 9 inches so far this year. How many more inches, p, of precipitation can Atlanta get and to stay at or below the average? (1 point) p + 9 > 27; p > 18 9 +

    asked on February 4, 2018
  53. Math

    True or False. 1. Every function is a relation. 2. When you switch the inputs and outputs of any function, the resulting relation is a function.

    asked on February 3, 2018
  54. Chemistry

    Write the balanced chemical reaction (showing appropriate symbols and states) for the chemical reaction with enthalpy change equal to and defined by the quantity dHformation [NH3(g)] N2(g) + 3H2(g) --> 2NH3(g) Is that all the question is asking for?

    asked on March 26, 2017
  55. Chemistry

    The enthalpy of formation for a substance corresponds to the enthalpy change for a reaction. Write the specific chemical reaction defining the enthalpy of formation of butane: Just checking to make sure this is correct: 4C + 5H2 ---> C4H10

    asked on March 26, 2017
  56. Math

    A soccer field has a perimeter of 26 yards.if the width is 8 yards,how long is the length?

    asked on January 24, 2017
  57. Geography

    which demographic group is correctly matched with its issue A.religious people - farm subsidies B.midwesterners - farm subsidies C.single parents - affirnmative action D.all are matched correctly

    asked on March 16, 2016
  58. Maths

    The sum of two digits number is 7. In changing position of digits we get the number 9 less than the original number. What is number?

    asked on December 31, 2015
  59. maths

    THIS IS NOTHING TO DO WITH A LADDER A fence 3m tall is erected vertically and parallel to a building that is 10m away please can someone tell me the maximum length of the shadow the fence will cast on the ground - thank you

    asked on November 4, 2015
  60. Math

    2/3>3/ number that makes the statement true.. I am confused

    asked on October 13, 2015
  61. Algebra

    The time, t, required to drive a certain distance varies inversely with the speed, r. If it takes 12 hours to drive the distance at 60 miles per hour, how long will it take to drive the same distance at 85 miles per hour? A. About 7.08 hours B. About 5.00

    asked on June 2, 2015
  62. math

    Why Was the Engineer Driving the Train Backwards?

    asked on March 27, 2015
  63. math -hw help

    Determine whether the following regular tetrahedrons have an edge length that is a whole number, a rational number or irrational number. The surface are of a tetrahedron is given by the equation: SA = √ 3s^2 Surface are of regular tetrahedron A = 1.5

    asked on February 5, 2015
  64. Physics(Science)

    Waves on a 5.0 m rope travel at a speed of 92 m/s. If the tension in the rope is 497 N, what is the mass of the rope?

    asked on October 26, 2014
  65. Spelling

    Wordly wise 3000 book 7 lesson 7c vocab answers?

    asked on December 17, 2013
  66. trig

    the pendulum of a grandfather clock is 1.3m long. Determine the length of the arc through which the pendulum moves if it moves through an angle of 15

    asked on November 8, 2012
  67. Physics

    A current of 4 A flows in a copper wire 10 mm in diameter. The density of valence electrons in copper is roughly 9 × 1028 m−3. Find the drift speed of these electrons. Answer in units of m/s.

    asked on November 1, 2012
  68. Physics

    The lowest A on a piano has a frequency of 27.5 Hz. Assume: The tension in the A piano wire (of length 0.51 m) is 305 N, and one-half wavelength occupies the wire. What is the mass of m the wire? Answer in units of kg.

    asked on October 5, 2012
  69. Physics

    A length of organ pipe is closed at one end. If the speed of sound is 344 m/s, what length of pipe is needed to obtain a funda- mental frequency of 70 Hz? Answer in units of m.

    asked on October 1, 2012
  70. Physics

    A pipe that is open at both ends has a fundamental frequency of 330 Hz when the speed of sound in air is 333 m/s. What is the length of this pipe? Answer in units of cm. What is the second harmonic? What is the third harmonic? Answer in units of Hz. What

    asked on October 1, 2012
  71. geometry

    Find the volume of a rectangular solid with the following dimensions: 2√3 cm x 7√5 cm x 4√6 cm.

    asked on July 25, 2012
  72. math

    solve the equation for x. write the solution set . -x2 + 12x = 0

    asked on May 18, 2011
  73. us history

    list two reasons that stereotypes creted by propaganda may gave affected the deciosion to drop the atomic bomb on japan

    asked on April 19, 2011
  74. Physics

    A motorboat travels at a speed of 40 km/h relative to the surface of the water. If it travels upstream against a current of 12 km/h what is the boats speed relative to the shore?

    asked on April 15, 2011
  75. Math

    A man and his wife share a sum of money in the ratio 3:2. If the sum of money is doubled, in what ratio should they divide it so that the man still rceives the same amount?

    asked on October 17, 2010
  76. Science-Physics HELP

    A S.S. automobile travels N at 40 km/h and a P.A. automobile travels E at 50 km/h. Relative to the observer riding in the S.S. auto what are the x and y components of the velocity of the P.A. car? The x axis is to the E and the y axis is to the N.

    asked on September 13, 2010
  77. Math (easy question)

    Given the function f(x) = 1/(sqrt x) a. Does f(x) exist at x=0? b. Does f'(x) exist at x=0? c. Explain why integral (from 0->1) f(x)dx does exist. THANK YOU.

    asked on July 23, 2010
  78. geo

    what are the human activities in the innuitian mountains?

    asked on January 9, 2010
  79. language arts

    According to the author, _____.

    asked on December 17, 2009
  80. Accounting

    Explain the accounting purpose of each general ledger cycle

    asked on September 14, 2009
  81. vocabulary (sentences)

    hi i need a sentence for partisan... please help

    asked on February 6, 2008
  82. science

    Bess filled a syringe with water and left it by the sink in the sunshine. Ten minutes later she saw a puddle of water under the syring tip so she thought it was broken, but it wasnt. What do you think caused the little puddle of water to appear under the

    asked on February 4, 2008
  83. algebra

    Emily wants to buy turquoise stones on her trip to New MExico to give to at least 4 of her friends. The gift shop sells stones for either $4 or $6 per stone. Emily has no more than $30. What are the system of inequalities so I could be able to graph them?

    asked on January 27, 2008
  84. reading

    Who is the antagonist in "The Face on the Milk Carton"? Also, what is the climax and what is the type of conflict. Please and thank you. Please check this site. http://en.wikipedia.org/wiki/The_Face_on_the_Milk_Carton Thank you for the site, but it still

    asked on August 3, 2007
  85. geometry

    suppose the diameter of a circle is 20in. long and a chord is 16in. long. What is the distance from the center of the circle to the chord Draw a radius from the center to the end of the chord. THe draw a radius from the center perpendicular to the chord.

    asked on July 8, 2007
  86. Biology

    What law of thermodynamics explains the fact that if you drop an egg, the shell will not spontaneously repair itself? The second law

    asked on February 24, 2007
  87. English

    Read the passage from “Why Leaves Turn Color in the Fall.” Was that a goldfinch perching in the early September woods, or just the first turning leaf? A red-winged blackbird or a sugar maple closing up shop for the winter? What is the figurative

    asked on June 22, 2020
  88. Science

    What is polluting the water in Watertown

    asked on May 21, 2020
  89. physics

    Evelyn lifts a 180-kg barbell to a height of 1.95 m. What is the increase in the potential energy of the barbell?

    asked on April 29, 2020
  90. social studies

    Compare the GDP of Kenya, Nigeria and South Africa? Suggest two reasons for the differences between the GDP of the countries

    asked on March 17, 2020
  91. Math

    Three friends want to share five brownies so each friend gets the same amount. How much brownie will each friend get?

    asked on February 10, 2020
  92. Science

    What defined the Ordovician period?

    asked on December 26, 2019
  93. math

    The angle of elevation of the sun is 27 degree. If a tree is 12 yd tall how long will the shadow be?

    asked on December 13, 2019
  94. Math

    How to get 2 equivalent fractions to 28/32

    asked on December 2, 2019
  95. science

    what mass of copper at 90 degrees celcius when added to 200g of water at 15 degrees celsius contained in a 100g aluminum calorimeter will give a final temperature of 25 degrees celcius

    asked on December 1, 2019
  96. Math

    If 2 equals 14, what does 5 equal?

    asked on November 12, 2019
  97. social studies

    East Asian nations have imposed tariffs and other trade barriers to protect their industries, but these barriers have economic growth. benefitted encouraged slowed sped up Which major threat does North Korea pose for the region? A. North Korea's nuclear

    asked on October 2, 2019
  98. social studies

    Which is a source of political conflict between China, Japan, and South Korea today? A. trade barriers B. nuclear weapons development /my answer/ C. land claims in the South China Sea D. economic sanctions

    asked on October 2, 2019
  99. Chemistry

    If I am asked to find the # of unpaired electrons in a molecule, do I just find the number of unpaired electrons for each atom and add them together? For example, MgSO4. Mg has 0 unpaired electrons. S has 2 unpaired electrons. O has 2 unpaired electrons.

    asked on September 25, 2019
  100. Career

    You need a college degree to enter the military. True False Is it false?

    asked on September 24, 2019


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