Friday

September 19, 2014

September 19, 2014

Total # Posts: 45

**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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