# 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!

2. ## Need Help with Math

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

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)} =

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

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

6. ## College Chemistry

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

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

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

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

10. ## Math

Write the least number possible with 5 in the thousands place

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?

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,

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

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

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

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

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

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)} =

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

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

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)} =

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?..

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.)

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

25. ## Science

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

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

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.)

28. ## Science

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

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?

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.

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) +

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

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

34. ## grammar

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

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!

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

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

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

39. ## hvac

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

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?

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

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

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

44. ## chem

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

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

46. ## math

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

47. ## Maths

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

48. ## math

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

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?

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.

51. ## geometry

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

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?

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

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?

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

56. ## biology

In what part of the cell does translation occur?

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.

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?

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

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

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

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.

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

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.

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?

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?

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

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

69. ## hvac

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

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.

71. ## government

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

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

73. ## math

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

74. ## hvac

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

76. ## science

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

77. ## LMI

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

78. ## hvac

when antifreeze is add to water the water specific heat

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

80. ## hvac

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

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

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.

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

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.

85. ## castlemont

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

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?

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?

88. ## chemisrty ASAP

name and give the formula for six diatomic elements.

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

90. ## Algebra

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

91. ## algebra 1

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

92. ## human behavior

teachers can improve a student's self-esteem by

93. ## Math

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

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

95. ## Physical Science

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

96. ## english

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

97. ## materials science engineering

Identify the  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 , which puzzles me since this is not a

98. ## math

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