miguel
Popular questions and responses by miguel
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 
Need Help with Math
Name three different pairs of fractions that have the same product when multiplied.
asked on September 16, 2014 
Math
Express the function in the form f ∘ g ∘ h. (Use nonidentity functions for f, g, and h.) H(x) = 9  5^x^2 {f(x), g(x), h(x)} =
asked on April 22, 2019 
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 
math
A smartphone is thrown upwards from the top of a 240foot building with an initial velocity of 32 feet per second. The height h of the smartphone after t seconds is given by the quadratic equation h=16t^2+32t+240. When will the smartphone hit the
asked on August 6, 2013 
College Chemistry
How many grams of steam and iron must react to produce 375g of magnetic iron oxide, Fe3So4
asked on July 13, 2012 
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 
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 
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 
Math
Write the least number possible with 5 in the thousands place
asked on June 23, 2016 
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 
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 
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 
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 
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 
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 
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 
math
Express the function in the form f ∘ g ∘ h. (Use nonidentity functions for f, g, and h.) H(x) = 9  (5)^x^2 {f(x), g(x), h(x)} =
asked on April 21, 2019 
English, Business English, Communications
I revised this memo to approve the youattitude. 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 
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 
Math
Express the function in the form f ∘ g. (Use nonidentity functions for f and g.) u(t) = cot(t) {f(t), g(t)} =
asked on April 21, 2019 
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 
Precalculus
The burial cloth of an Egyptian mummy is estimated to contain 57% of the carbon14 it contained originally. How long ago was the mummy buried? (The halflife of carbon14 is 5730 years.)
asked on June 10, 2010 
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 
Science
Calculate the centripetal force on a 2100kg car rounding a curve of 175m radius at speed of 60kph
asked on July 23, 2019 
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 
Precalculus
The burial cloth of an Egyptian mummy is estimated to contain 57% of the carbon14 it contained originally. How long ago was the mummy buried? (The halflife of carbon14 is 5730 years.)
asked on June 10, 2010 
Science
How many moles of oxygen reacts with 2.4 moleof iron in the rusting reaction?
asked on March 3, 2020 
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 
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 
Chemistry
At 700 K, the equilibrium constant for the reaction NO2(g) « 2NO(g) + O2(g) is Kc = 4.79×103 (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 
grammar
How children's drawings develop (1. is, are) a fascinating subject. For example, a twoyearold and sometimes even a threeyearold (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 
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 
grammar
The word _______ always takes a singular verb, regardless of what follows it there who it that
asked on September 13, 2015 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
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 
Maths
By how much taller is the door 2meters than the boy 78meters
asked on July 14, 2016 
math
how would i factor 15x^2+7xy2y^2
asked on August 6, 2013 
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 
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 
geometry
In parallelogram TRIG, m∠R = 2x + 19 and m∠G = 4x  17. What is m∠T
asked on February 26, 2012 
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 
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 
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 
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 
biology
In what part of the cell does translation occur?
asked on April 24, 2014 
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 
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 
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 ArS to Ar to S to
asked on November 14, 2012 
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 
Word Problem
A grander want to create a triangular garden in the shape of a right triangle with shortest side length x6y 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 
Algebra
The length of the side if a rectangular desk is given by 2x7x 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 
Research Practicum
I'm conducting a research project on "to what extent are college students addicted to textbased 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 
math
a quadrilateral with angles that mesure: 10x25, 10x, 3x to the second power, and 2x to the second power. solve for x.
asked on November 16, 2010 
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 
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 
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 
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 
hvac
what is the required input in watts to operate a 70 percent efficient threehorsepower electric motor
asked on October 17, 2011 
math
a quadrilateral with angles that mesure: 10x25, 10x, 3x to the second power, and 2x to the second power. solve for x.
asked on November 16, 2010 
government
WHAT IS THE LIST OF CASES TO BE HEARD BY A COURT IS CALLED
asked on May 19, 2008 
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 
math
Evaluate the expression: s = 8; 6s^2
asked on July 24, 2016 
hvac
an oil slinger is found in a reciprocating compressor employing what type of lubrication system
asked on October 29, 2011 
hvac
compressor cylinger unloading reduces the capacity of a reciprocating compressor by
asked on October 29, 2011 
science
the temperature of the water that forms while ice melts is 32 degrees fahrenheit true or false?
asked on October 18, 2011 
LMI
I am looking for the patern of 0,2, 5,9, or sequence of them
asked on September 4, 2013 
hvac
when antifreeze is add to water the water specific heat
asked on October 29, 2011 
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 
hvac
what happens to the pressure at locations moving vertically up or down a ph constantenthalpy line?
asked on October 29, 2011 
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 
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 
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 
Algebra 2
Quadratic systems x^2+y^2=10 2y+y=4 the first part I got this x^2+(42x)^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 
castlemont
travis sister is 5 years less than twice his age how he can express this expression
asked on October 7, 2013 
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 
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 
chemisrty ASAP
name and give the formula for six diatomic elements.
asked on October 6, 2011 
Algebra help
Match the equation 4x^62x^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 
Algebra
Multiply polynomials (n^3+8)(n4)
asked on March 10, 2011 
algebra 1
how do make a dialation image at the origin also with a scale factor of 2???
asked on September 28, 2008 
human behavior
teachers can improve a student's selfesteem by
asked on January 24, 2012 
Math
(52t^3)^2 I came up with this answer: = (2t^3 +5) ^2 is it correct?
asked on March 10, 2011 
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 
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 
english
how can use in are or I want know if is correct use both together
asked on September 25, 2007 
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 
math
how do i factor 27x^321x^2y+108x^284yx
asked on August 5, 2013 
Algebra help
Match the equation 4x^62x^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

History
The answer is nothing
posted on January 28, 2020