Thursday
December 18, 2014

Posts by Mariana


Total # Posts: 46

International trade
Can you apply comparative advantage theory to business outsourcing?
October 1, 2014

Math
The daily production costs C (in dollars per unit) for a manufacturer of lighting fixtures are given by the quadratic function C(X)=800-10X+0.25X2 where x is the number of units produced. How many fixtures should be produced to yield a minimum cost per unit?
September 9, 2014

math
The profit P ( in dollars) for a manufacturer of sound systems is given by the quadratic function P(X)=-0.0003X2+150X-375000 where X is the number of units produced. What production level will yield a maximum profit?
September 9, 2014

chem
why would it not be [Kr] 5s^2,4d^9
August 11, 2013

Chemistry....helpppp
Predict Which among the following substances is likely to have a relatively high melting point.(more than one answer may be selected) * P4 * CaCl2 * CCl4 * AlN * CaC2 * None of the above
August 9, 2013

Chemistry
What is the electron pair geometry for NCL3?
August 7, 2013

Chemistry
What is the electron pair geometry for NCL3?
August 7, 2013

math
i am stuck on this problem! help! Write a quadratic equation that has two solution, 4 and -4. Leave the polynomial in reduced factored form.
August 6, 2013

math
find the GCF 87h^14t^16,6h^2t^27,15h^6t^28
August 5, 2013

Chemistry
Why is ionization energy for calcium greater than that for potassium?
August 4, 2013

Chemistry
how do i write the complete electron configuration for Ga3+ and Mg2+????????????
August 4, 2013

Chemistry
how many moles of Mg2+ and NO3(there is a negative sign on top of the 3 in NO3)form for each mole of Mg(NO3)2 that dissolves?
July 31, 2013

Algebra 2
A Ball Bounced Four Times,reaching Three Fourths Of Its Previous Height With Each Bounce .after The Fourth Bounce,the Ball Reached A Height Of 27 Cm. how High Was The Ball When It When It Was Dropped?
September 8, 2012

health information
some examples on some responsibilities on how a manager of a 60bed will have after he is assigned to also run a 90 beds. Becoming a split department. What does this split department situation do to your efficiency as a mannager, and how can you compensate for this change? Also...
August 30, 2012

health information
becoming a split department manager. Generate a list of the ways in which you believe your responsibilities and the tasks you perform are likely to change because of the merger and your resulting new role?
August 30, 2012

Algebra
idont the answer i need help
April 21, 2012

physics
a force of 5 N is required to slide a block at constant speed over the dry surface of a table. The block has a mass of 2.5 kg. The coefficient of friction is..
January 30, 2012

Spanish
SraMcGin, si me permite decirle, "norteamericana" se pudiera referir igualmente a alguien de Canada. Norteamerica no es exclusiva de Estados Unidos.
December 10, 2011

Spanish
And when I said it was right, I meant the translation in your second post. "Estadounidense" is the right word.
December 10, 2011

Spanish
Julian, yours is alright. The word "americana" is a wrong translation.
December 10, 2011

Biology
Using the codon table, determine the sequence of the protein that will be produced from the mRNA sequence below. Be sure to begin with a start codon. 5'-CCCAAUGUUGCGGCCAUGACAC-3' A. N-Methionine-Leucine-Arginine-Proline-C B. N-Methionine-Histidine-Serine-Threonine-...
December 10, 2011

Physics
What is the energy released in the fusion reaction: 2H+2H--> 4He + Q? How do I calculate this?
December 4, 2011

Physics
You are right, considering the mass of the electron emitted I got .352 MeV, which is the correct answer. Everywhere I looked on the internet said to neglect this mass, but I guess it does make a difference. My answer was negative though, does that mean that I only consider the...
December 3, 2011

Physics
How much energy is released in the beta decay of 14 C? Since carbon-14 decays into Nitrogen-14, the mass of carbon 14 is 14.003242 and the mass of nitrogen 14 is 14.003074, What I did was: (14.003242-14.003074)u * 931.5 MeV/c^2 = (0.156 MeV/c^2)*c^2 = .156 MeV but that's ...
December 3, 2011

Chemistry
Calculate the pH at the equivalence point for the titration of 0.120 M methylamine with 0.120 M HCl (kb of methyalamine is 5.0 x 10^-4)
November 13, 2011

Biology
Does light wavelength affect cellular respiration rate? I know that it affects photosynthetic rate. I think it is not supposed to affect cellular respiration rate, but I recently conducted an experiment that has proved otherwise and I just want to make sure about the facts ...
October 31, 2011

Statistics
Normal probabilities. 11% of all observations are less than z
September 24, 2011

chemistry
You have an aspirin dissolving in water, with this elements ( arthritis strength BC, arthropan and Ascripitin A/D), how can you separate them to find the amout of each on in water?
June 28, 2011

English
Into day's - in todays Some basic grammer and spelling that can be fixed by reading aloud and removing 'awkward' words/phrases. Even if they look good on the page, if they don't feel right you should remove them. Also using the same method properly place ...
April 24, 2011

Science. Please Help!
CHARLES LAW PROBLEMS
February 14, 2011

math
How much is 4.36 meters in centimeters?
February 8, 2011

Chemistry
Calcium carbide, CaC2, can be produced in an electric furnace by strongly heating calcium oxide (lime) with carbon. The unbalanced equation is CaO(s) + C(s) ¨ CaC2(s) + CO(g) Calcium carbide is useful because it reacts readily with water to form the flammable gas ...
February 5, 2011

Chemistry
An unknown salt AS x XH2O was analyzed and found to contain 16.4 percent water. If the anhydrous salt has a formula mass of 183 amu, find the water of crystallization (X) for the hydrate. I have no idea how to figure this out! HELPP PLEASE!!
January 23, 2011

Chemistry
How do you find the molar mass of HBr?
January 9, 2011

Geometry
the answer in the book says 8 sqrt of 2. i dont know how to solve it though
January 9, 2011

Geometry
The sum of the squares of the measures of the sides of a square is 256. Find the measure of a diagonal of the square.
January 9, 2011

Geometry
The diagonals of a rectangle are 12 inches long and intersect at an angle of 60 degrees. Find the perimeter of the rectangle.
January 9, 2011

geometry
thanks!
January 9, 2011

geometry
the length of a diagonal of a square is 22 square root of 2 millimeters. Find the perimeter of the square.
January 9, 2011

us history
what do u mean by it has diversified our culture and what is an cause and effect for mirgration
October 28, 2010

us history
my question is on north americans mirgation it says expain one way that mirgration affects us today? then my next question says give one cause and effact of the mirgration of the frist americans?
October 28, 2010

math
how to dived fraction
October 26, 2009

math
how to dived fraction
October 26, 2009

2nd Grade Science
Some objects and ____________ things move quickly. What is the answer to fill-in the blank.
April 30, 2008

math
im doing percent proportions and it is asking: 57% if 109 is what number? And i already know that you start with 57/100 = x/109 but how do you get the answer, i cant figure it out!!!
October 2, 2007

Physics
i dont know
September 25, 2006

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