miguel

Popular questions and responses by miguel
  1. Chemistry

    Estimate the value of the equilibrium constant at 550 K for each of the following reactions. 1) 2CO(g) + O2(g) 2CO2(g) 2) 2H2S(g) 2H2(g) + S2(g) Thanks in advance!

    asked on July 18, 2010
  2. Need Help with Math

    Name three different pairs of fractions that have the same product when multiplied.

    asked on September 16, 2014
  3. Math

    Express the function in the form f ∘ g ∘ h. (Use non-identity functions for f, g, and h.) H(x) = 9 - 5^x^2 {f(x), g(x), h(x)} =

    asked on April 22, 2019
  4. Chemistry

    If 5.00L of argon gas is at 0.460 atm and -123C what is the volume at STP I think it's b

    asked on November 21, 2015
  5. math

    A smart-phone is thrown upwards from the top of a 240-foot building with an initial velocity of 32 feet per second. The height h of the smart-phone after t seconds is given by the quadratic equation h=-16t^2+32t+240. When will the smart-phone hit the

    asked on August 6, 2013
  6. College Chemistry

    How many grams of steam and iron must react to produce 375g of magnetic iron oxide, Fe3So4

    asked on July 13, 2012
  7. Precalculus

    Suppose that termial point by t is the point (3/4, (square root 7)/4) on the unit circle. Find the terminal point determined by each of the following. a) pi - t b) -t c) pi + t d) 2pi + t

    asked on June 23, 2010
  8. Social Studies

    Which organization was most closely associated with the events shown in this photo? A. the Salvation Army B. the Interstate Commerce Commission C. the Young Men’s Christian Association D. the Women’s Christian Temperance Union

    asked on May 29, 2019
  9. Math

    Evaluate the limit using the appropriate Limit Law(s). (If an answer does not exist, enter DNE.) lim t → −1 (t2 + 1)^4(t + 3)^5

    asked on April 21, 2019
  10. Math

    Write the least number possible with 5 in the thousands place

    asked on June 23, 2016
  11. Geography

    If you traveled from 40 degrees North 80 degrees West to 35 degrees North 105 degrees W, in which direction would you have traveled?

    asked on October 27, 2016
  12. Calculus

    If f(x) is differentiable for the closed interval [−1, 4] such that f(−1) = −3 and f(4) = 12, then there exists a value c, −1< c < 4 such that a)f'(c)=3 b)f'(c)=0 C)f(c)=-15 d)f(c)=3 I understand that you are supposed to use the mean value theorem,

    asked on November 30, 2016
  13. math

    find the value of x. round to the nearest tenth. when the the inside is 35 degrees and the other angle is 90 the outside hypotenuse is 20 and x

    asked on March 1, 2012
  14. Accounting 7

    Job 31 has a direct materials cost of $300 and a total manufacturing cost of $900. Overhead is applied to jobs at a rate of 200 percent of direct labor cost. Use the relationships among total manufacturing costs, conversion cost, and prime cost to

    asked on September 9, 2014
  15. math

    Russell planted a flowerbedthat is 1.6 square meters. Jackie planted a flower bed that is 16 tenths square meter. Draw a quick picture to model the two pictures

    asked on September 9, 2014
  16. Accounting 3

    Wheeler’s Bike Company manufactures custom racing bicycles. The company uses a job order cost system to determine the cost of each bike. Estimated costs and expenses for the coming year follow: Bike parts $350,000 Factory machinery depreciation $55,000

    asked on September 9, 2014
  17. social studies

    Which was the most likely effect of women's increasing education and professional achievement during the Progressive Era? A.men taking on more responsibilities in the household B. women earning as much money as men in similar positions C. the passage of

    asked on May 23, 2019
  18. math

    Express the function in the form f ∘ g ∘ h. (Use non-identity functions for f, g, and h.) H(x) = 9 - (5)^x^2 {f(x), g(x), h(x)} =

    asked on April 21, 2019
  19. English, Business English, Communications

    I revised this memo to approve the you-attitude. Can someone tell me if I did it correctly? If I didn't what did I do wrong. I worked on this for 3 hours! Subject: Status of Building Renovations We are happy to announce that the renovation of the lobby is

    asked on January 31, 2015
  20. Accounting 2

    Cambridge Manufacturing Company applies manufacturing overhead on the basis of machine hours. At the beginning of the year, the company estimated its total overhead cost to be $325,000 and machine hours to be 25,000. Actual manufacturing overhead and

    asked on September 9, 2014
  21. Math

    Express the function in the form f ∘ g. (Use non-identity functions for f and g.) u(t) = cot(t) {f(t), g(t)} =

    asked on April 21, 2019
  22. physcis

    biker passes a lamppost at the crest of a hill at + 4.5 m/s. she acceleratets down the hill at a constant rate of +0.40 ,/s2 for 12 seconds.\ how far does she move down the hill during this time?..

    asked on September 18, 2012
  23. Precalculus

    The burial cloth of an Egyptian mummy is estimated to contain 57% of the carbon-14 it contained originally. How long ago was the mummy buried? (The half-life of carbon-14 is 5730 years.)

    asked on June 10, 2010
  24. social studies

    Which was the main reason for the slow growth of labor unions in the United States during the 19th century? A. presence of language and cultural barriers among workers B. existence of adequate wages and good working conditions C. lack of public and legal

    asked on May 23, 2019
  25. Science

    Calculate the centripetal force on a 2100kg car rounding a curve of 175m radius at speed of 60kph

    asked on July 23, 2019
  26. economics 6

    Annual per capita consumption of milk is 21.6 gallons (Statistical Abstract of the United States: 2006). Being from the Midwest, you believe milk consumption is higher there and wish to support your opinion. A sample of 16 individuals from the mid western

    asked on September 8, 2014
  27. Precalculus

    The burial cloth of an Egyptian mummy is estimated to contain 57% of the carbon-14 it contained originally. How long ago was the mummy buried? (The half-life of carbon-14 is 5730 years.)

    asked on June 10, 2010
  28. Science

    How many moles of oxygen reacts with 2.4 moleof iron in the rusting reaction?

    asked on March 3, 2020
  29. Accounting 8

    The following information is available for Walker Industries: Beginning work in process inventory $30,000 Ending work in process inventory $25,000 Cost of goods manufactured $180,000 Compute total current manufacturing cost?

    asked on September 9, 2014
  30. Accounting 9

    The following information is available for Baker Industries: Cost of goods manufactured $320,000 Beginning finished goods inventory $45,000 Ending finished goods inventory $35,000 Compute the cost of goods sold.

    asked on September 9, 2014
  31. Chemistry

    At 700 K, the equilibrium constant for the reaction NO2(g) « 2NO(g) + O2(g) is Kc = 4.79×10-3 (M), and the rate constant for the reaction 2NO(g) + O2(g) ® NO2(g) is k = 3.13×10^3 M^-2s^-1. What is the rate constant for the reaction NO2(g) ® 2NO(g) +

    asked on June 21, 2010
  32. grammar

    How children's drawings develop (1. is, are) a fascinating subject. For example, a two-year-old and sometimes even a three-year-old (2. does not, do not) create any recognizable forms when scribbling, and most of the children recently studied by a child

    asked on September 13, 2015
  33. Chemistry

    Please help, I am having trouble solving these problems at nonstandard temperatures. Methanol burns in oxygen to form carbon dioxide and water. Using the balanced reaction, 2CH3OH(l) + 3OH2(g) --> 2CO2(g) + 4H2O(g) 1) Calculate delta H(rxn) in kJ at 24

    asked on July 18, 2010
  34. grammar

    The word _______ always takes a singular verb, regardless of what follows it there who it that

    asked on September 13, 2015
  35. Precalculus

    Find the reference number for each value of t. t = 4 t = -8 I'm having trouble on the ones without pi. Thanks in advance!

    asked on June 23, 2010
  36. history

    The Wilmot Proviso called for popular sovereignty on the slave question in the territories won from Mexico. True False The Wilmot Proviso ____________________. passed the House and Senate. enraged the South. brought the North and South together on the

    asked on September 13, 2015
  37. economics

    Annual per capita consumption of milk is 21.6 gallons (Statistical Abstract of the United States: 2006). Being from the Midwest, you believe milk consumption is higher there and wish to support your opinion. A sample of 16 individuals from the mid western

    asked on September 8, 2014
  38. Physics

    Two parallel plates are separated by a dielectric of thickness 2 mm with a dielectric constant of 6. If the area of each plate is 40 cm^2 and the potential difference between them is 1.5 kV, determine (a) the capacitance

    asked on April 7, 2013
  39. hvac

    calculate the amount of heat required to change 5 pounds of ice at 32 degrees to water 32 degrees

    asked on October 17, 2011
  40. Physical Science

    A water balloon dropped from a dorm window does not break on impact. From what height would you need to drop the balloon to double the speed of the balloon?

    asked on February 25, 2011
  41. Chemistry

    The reaction of a metal ion, M^2+, with EDTA is given in the following equation: M^2+(aq) + Y^4-(aq) MY^2-(aq) The EDTA was standardized with a 0.04 M Zn^2+ solution. 25.05 mL of EDTA solution was used to titrate the Zn^2+ solution. From this

    asked on July 20, 2010
  42. grammar

    revise the following sentences to eliminate faulty sentence structure, making them clear and grammatically need help with the following sentences: An effective Web site is well designed, provides useful information, and links are given to other relevant

    asked on December 1, 2012
  43. Algebra Help

    Identify coefficients and the degrees of each term polynomial, and then find the degree of each polynomial. a^3b^8c^2 - c^22 + a^5c^10

    asked on March 10, 2011
  44. chem

    calories need to melt 60.0 of ice at 0 and to warm the liquid to 65 (two steps)

    asked on September 12, 2011
  45. Accounting 1

    Oscar Corp. applies manufacturing overhead to production at 150% of direct labor cost. During 20x5, manufacturing overhead of $180,000 was applied to production; actual manufacturing overhead was $199,000. Beginning Work in Process Inventory was $20,000

    asked on September 9, 2014
  46. math

    wat do u do wen they ask to draw a dialation image at the origin and a scale factor of 2???

    asked on September 28, 2008
  47. Maths

    By how much taller is the door 2meters than the boy 78meters

    asked on July 14, 2016
  48. math

    how would i factor 15x^2+7xy-2y^2

    asked on August 6, 2013
  49. chemistry ASAP

    Consider the following chemical reaction: NaOH +HC1 -> NaC1 + H20 When 36.5 g of HC1 are reacted with 40.0 g of NaOH , how many grams of water are produced along with 58.5 g of NaC1?

    asked on October 6, 2011
  50. grammar

    need help with this one : 2. To enroll in film school being my primary goal, so I am always saving my money and watching for scholarship opportunities.

    asked on December 1, 2012
  51. geometry

    In parallelogram TRIG, m∠R = 2x + 19 and m∠G = 4x - 17. What is m∠T

    asked on February 26, 2012
  52. chemistry asap

    Consider the following chemical reaction: NaOH +HC1 -> NaC1 + H20 When 36.5 g of HC1 are reacted with 40.0 g of NaOH , how many grams of water are produced along with 58.5 g of NaC1?

    asked on October 6, 2011
  53. Algebra

    Identify coefficients and the degrees of each term polynomial, and then find the degree of each polynomial. a^3b^8c^2 - c^22 + a^5c^10

    asked on March 10, 2011
  54. math

    The number of students at another university increased from 14,000 students in 1971 to 30,000 in 1975. What was the percent increase in enrollment during this period?

    asked on July 15, 2009
  55. economics (7)

    An electronics company advertises that the battery life of its new smart phone with normal usage averages 72 hours. The company says this is one of the desirable characteristics of the phone which makes the phone a better choice compared to competitor

    asked on September 8, 2014
  56. biology

    In what part of the cell does translation occur?

    asked on April 24, 2014
  57. grammar

    i need to correct them this sentences 4. Irony is when you expect one thing and get something else. 5. By turning off the water when you brush your teeth, you can save up to eight gallons of water per day.

    asked on December 1, 2012
  58. Physics

    A charge of 5 nC is located at P(2,π/2,-3) and another charge of -10nC is situated at Q(5,π,0). Calculate the force exerted by one charge on the other. What is the nature of this force?

    asked on February 24, 2013
  59. statistics

    Fruit flies which were heterozygous for both autosomal dominant traits aristapedia (Ar) and star eyes (S) were mated. Since aristapedia and star eyes are both lethal when homozygous and unlinked, one would predict ratio of 4:2:2:1 for Ar-S to Ar to S to

    asked on November 14, 2012
  60. Algebra

    using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. 3x + 24y = 24 27x – 15y = -15

    asked on March 23, 2011
  61. Word Problem

    A grander want to create a triangular garden in the shape of a right triangle with shortest side length x-6y ft. and the middle length side x + 6y ft. what is an algebraic expression for the area of the garden? Be sure to multiply this out and express in

    asked on March 15, 2011
  62. Algebra

    The length of the side if a rectangular desk is given by 2x-7x cm. The length of the front is given by 2x +7y cm. What is an algebraic expression for the area of the top of the rectangular desk? Include correct units as part of answer.

    asked on March 11, 2011
  63. Research Practicum

    I'm conducting a research project on "to what extent are college students addicted to text-based college communication?" this is my survey I created. Is this a good survey? and how do I evaluate my responses from, let's say, 50 surveys to table data to

    asked on February 24, 2011
  64. math

    a quadrilateral with angles that mesure: 10x-25, 10x, 3x to the second power, and 2x to the second power. solve for x.

    asked on November 16, 2010
  65. math

    the ratio of boys to girls in a science class is 5 to 4. If there are 8 girls in the class, how many boys are there?

    asked on February 17, 2010
  66. math

    Lee and garth left the library at the same time and walked in opposite directions. On the same street avenue lee averaged 3 miles per hour and garth averaged 3.5 miles per hour. How long did it take them to be 3.25 miles apart?

    asked on April 8, 2009
  67. College Mathematics

    Guys, could you please help me with this problem? I'm a bit lost. Consider a population that begins growing exponentially at a rate of 5% per year and then follows a logistic growth pattern. If the carrying capacity is 100 million, find the actual growth

    asked on August 8, 2008
  68. economics

    An electronics company advertises that the battery life of its new smart phone with normal usage averages 72 hours. The company says this is one of the desirable characteristics of the phone which makes the phone a better choice compared to competitor

    asked on September 8, 2014
  69. hvac

    what is the required input in watts to operate a 70 percent efficient three-horsepower electric motor

    asked on October 17, 2011
  70. math

    a quadrilateral with angles that mesure: 10x-25, 10x, 3x to the second power, and 2x to the second power. solve for x.

    asked on November 16, 2010
  71. government

    WHAT IS THE LIST OF CASES TO BE HEARD BY A COURT IS CALLED

    asked on May 19, 2008
  72. Philosophy

    -- How much wood could a wood chuck chuck, if a wood chuck could chuck wood? -- How much will could Will Smith smith, if Will Smith could smith wills? Thank you for using the Jiskha Homework Help Forum although I seriously suspect this is NOT a homework

    asked on June 17, 2007
  73. math

    Evaluate the expression: s = 8; 6s^2

    asked on July 24, 2016
  74. hvac

    an oil slinger is found in a reciprocating compressor employing what type of lubrication system

    asked on October 29, 2011
  75. hvac

    compressor cylinger unloading reduces the capacity of a reciprocating compressor by

    asked on October 29, 2011
  76. science

    the temperature of the water that forms while ice melts is 32 degrees fahrenheit true or false?

    asked on October 18, 2011
  77. LMI

    I am looking for the patern of 0,2, 5,9, or sequence of them

    asked on September 4, 2013
  78. hvac

    when antifreeze is add to water the water specific heat

    asked on October 29, 2011
  79. hvac

    gas trapped in a reciprocating piston compressors clearance space expands at the beginning of the suction stroke what effect does this have on the system

    asked on October 29, 2011
  80. hvac

    what happens to the pressure at locations moving vertically up or down a ph constant-enthalpy line?

    asked on October 29, 2011
  81. Math Help

    Mobile ad spending. The amount spent worldwide in advertising on mobile devices can be estimated by f(x) =0.4x^2+0.01x+0.9. Where x is the number of years after 2005 and f(x) is in billions of dollars. When will worldwide mobile ad spending reaches $41

    asked on March 24, 2011
  82. math

    Marla earned $400 interest over 2 years on a $4,000 investment. Jovita earned $960 interest over 4 years on her $6000 investment. Who had the higher rate of interest? Explain.

    asked on July 15, 2009
  83. Algebra

    1.An experiment consists of rolling two dice and the sum of faces is observed. How many observations are there (i.e. the possible outcomes)? 2. A bowl contains 10 red balls and 8 blue balls. If five balls are to be drawn, determine the number of ways that

    asked on March 12, 2016
  84. Algebra 2

    Quadratic systems x^2+y^2=10 2y+y=4 the first part I got this x^2+(4-2x)^2=10 and I don't know what steps comes next. could you show work on how to do it I'm so confuse on this problem.

    asked on November 22, 2014
  85. castlemont

    travis sister is 5 years less than twice his age how he can express this expression

    asked on October 7, 2013
  86. History

    This question deals with liberty and power. How have people in North America acted to create, preserve, organize, and resist power from the founding of Jamestown in 1607 through the Civil War to 1865?

    asked on May 4, 2012
  87. chemistry ASAP

    Consider the following chemical reaction: NaOH +HC1 -> NaC1 + H20 When 36.5 g of HC1 are reacted with 40.0 g of NaOH , how many grams of water are produced along with 58.5 g of NaC1?

    asked on October 6, 2011
  88. chemisrty ASAP

    name and give the formula for six diatomic elements.

    asked on October 6, 2011
  89. Algebra help

    Match the equation 4x^6-2x^3+1=0. With a substitution from the column that could be used to reduced the equation to quadratic form: a) u=x^-1/3 b) u=x^1/3 c) u=x^-2 d) u=x^2 e) u=x^-2/3 f) u=x^3 g) u=x^2/3 h) u= x^4

    asked on March 24, 2011
  90. Algebra

    Multiply polynomials (n^3+8)(n-4)

    asked on March 10, 2011
  91. algebra 1

    how do make a dialation image at the origin also with a scale factor of 2???

    asked on September 28, 2008
  92. human behavior

    teachers can improve a student's self-esteem by

    asked on January 24, 2012
  93. Math

    (5-2t^3)^2 I came up with this answer: = (-2t^3 +5) ^2 is it correct?

    asked on March 10, 2011
  94. Physical Science

    In a pulley sytem with 100% effieciency with ten support cables. The input side reels 100 meters of cable. How far dis the output move? What is the value of the output force? In identical conditions at 70% efficiency, the cable does not stretch. How much

    asked on February 25, 2011
  95. Physical Science

    Two cars are moving in identical conditions, one car is moving 3 times how much farther will this fast car travel?

    asked on February 25, 2011
  96. english

    how can use- in are- or I want know if is correct use both together

    asked on September 25, 2007
  97. materials science engineering

    Identify the [221] vector.(crystallographic directions qns) The answer given corresponds to 0.5 in x direction,0.5 in y and 1 in z. Why is it not [1 1 0.5], the simply reduced form. The ans is the reciprocal of [221], which puzzles me since this is not a

    asked on January 25, 2014
  98. math

    how do i factor 27x^3-21x^2y+108x^2-84yx

    asked on August 5, 2013
  99. Algebra help

    Match the equation 4x^6-2x^3+1=0. With a substitution from the column that could be used to reduced the equation to quadratic form: a) u=x^-1/3 b) u=x^1/3 c) u=x^-2 d) u=x^2 e) u=x^-2/3 f) u=x^3 g) u=x^2/3 h) u= x^4

    asked on March 24, 2011
  1. History

    The answer is nothing

    posted on January 28, 2020