Thursday

March 26, 2015

March 26, 2015

Total # Posts: 719

** chemestry**

the common isotopes of chlorine weigh 35&37 units A.How many different mass molecules are there for dichlormethane,ch2 cl2? B. Draw and label each molecule C. explain why the ram of chlorine is about 35.5& not a whole number. D. lighter molecules diffuse more quickly. which ...
*March 26, 2015*

**Art**

Yes it was anonymous. I just took this quiz and this question was right. :)
*March 12, 2015*

**Healthcare Statistics**

As a data collection specialist at the National Institutes of Health (NIH), you have been involved in a research study conducted over the past year. The study found that liver cancer rates per 100,000 males among cigarette smokers to nonsnmokers, in a major urban U.S. city, ...
*March 8, 2015*

**Math**

3.46
*March 8, 2015*

**Math**

r=effective interest rate i=stated interest rate(18%) n=number of compounding periods therefore:r={(1+i/n)^n - 1} i=0.18 n=12 r={(1+0.18/12)^12 - 1} r=0.20
*March 8, 2015*

**Healthcare Statistics**

What is the mode of this data set 22 27 32 32 35 35 36 37 38 42 48 52 53 54 55 55 55 58 59 62 62 63 64 65 65 65 67 69 75 84 I see four modes: 32, 35, 55, and 65 Would this be considered multimodal?
*February 27, 2015*

**maths**

a carpenter has a board that is 8 ft long. he cuts off two piece.one piece is 3 1/2 ft long and other is 2 1/3ft long.How much off the board is left.
*February 26, 2015*

**Algebra 2**

Solve the equation x^3 - 3x^2-22x+24=0 do you use a graph?
*February 22, 2015*

**Algebra 2**

thanks for the help. i dont think i learned all of that yet and i dont understand.
*February 22, 2015*

**Algebra 2**

i factored by grouping and got x^2(x-3) -2(11x-12) = 0 so now do i set the equal to zero?
*February 22, 2015*

**Algebra 2**

solve the equation x^2 - 3x^2-22x+24=0 do you use a graph?
*February 22, 2015*

**Algebra 2**

Write the following in Summation Notation. 2/5+4/6+6/7+8/8+10\9
*February 18, 2015*

**Language Arts**

**somebody** are you absolutely sure? And also I am working on this now if any one can help it would mean a lot to me and it will help my grade! :)
*February 11, 2015*

**Math**

Suppose 1% of the population is known to have a medical condition. There is a test for the condition, and 80% of people with the condition test positive for it. Also, 10% of people without the condition test positive for it. Follow these steps to find the probability that a ...
*February 4, 2015*

**Math**

Gabriella is x years old.Her sister Felicia,is six years old than she is.Their mother is twice as old as Felicia.Their aunt,Tanya,is x years older than their mother.Write and simplify an expression that represents Tanya's age in years.
*January 14, 2015*

**Algebra 2**

Write an equation for the relationship z varies jointly with x and the square of y, and inversely with r and s.
*January 11, 2015*

**Human Resources**

Thanks
*December 23, 2014*

**Human Resources**

In 2003, a company employee received an option to purchase the company's stock at $45 per share. If the stock is trading at $40 a share in 2003, the employee will most likely... Is it to exercise the option, receiving a gain of $5?
*December 23, 2014*

**chemistry**

If your car gets 21.4 mpg, how many L of CO2, will you release into the atmosphere, if you drove the 1280miles from Towson University to key West Florida for a much needed break after taking Chemistry 121? Assume 1.05atm and 17.0C. What would your carbon load be in lbs (lbs of...
*December 15, 2014*

**Managerial Accounting, MBA**

A company produces a single product. Variable production costs are $12 per unit and variable selling and administrative expenses are $3 per unit. Fixed manufacturing overhead totals $36,000 and fixed selling and administrative expenses total $40,000. Assuming a beginning ...
*December 5, 2014*

**Art Help!**

I think it is either C or D because the answer C does make sense because you like a certain style. But, D says the variety of art styles. And that can play a big roll in style. I'm not positive but I think it is C. Tell me what you got ;D
*December 4, 2014*

**Managerial Accounting**

Garcia Veterinary Clinic expects the following operating results next year: Sales (total) $600,000 Variable expenses (total) $120,000 Fixed expenses (total) $300,000 What is Garcia's break-even point next year in sales dollar?
*December 4, 2014*

**Managerial Accounting**

Garcia Veterinary Clinic expects the following operating results next year: Sales (total) $600,000 Variable expenses (total)
*December 4, 2014*

**Chemistry Correction**

Hi, I'm trying to solve for the radius of the sphere. This is the correct steps: 8.27*10^-29 = 4/3 pi * r^3 r^3 = 2.0225 * 10^-29 cu meters When I do 8.27x10^-29 / 4/3 pi, I don't get the answer 2.0225x10^-29 Can you tell me what I'm doing wrong?
*November 30, 2014*

**algebra 2**

find the domain y=-ãx-5 +3
*November 19, 2014*

**PED 212 Foundation of Movement & Motor Activitie**

Question 7.7 , the answer is (b)
*November 12, 2014*

**Algebra I**

Thank You
*October 29, 2014*

**Algebra I**

Use one unit multiplier to write the expression needed to convert 42 meters to centimeters? It also said;Do not carry out the actual multiplication. So do I just write my answer 42m over 1 x 100cm over 1m? Thank You for your help.
*October 29, 2014*

**mechanics**

a sledge of mass 25kg is pulled along a smooth frozen lake by a rope which is pulled at an angle of 30 degrees to the horizontal.if the sledge accelerates at 1.5 metres per second, find the tension.
*October 24, 2014*

**Language arts**

Thank you Ms. Sue soooooooooooooooo much
*October 23, 2014*

**Language arts**

How should the United States government have behaved in dealing with the disputes between the Cherokees and the white settlers?
*October 23, 2014*

**Math **

Pey Soon has taken out a 20-year, $150,000 mortgage with monthly payments (made at the end of each month) at a stated mortgage rate of 6.8% per year compounded semi-annually. If she makes each payment on time, what will be the mortgage principal remaining after 10 years? ...
*October 23, 2014*

**Math help**

You plan to make 24 equal quarterly payments (payments are at the end of each period) into an account to pays 8% (per year compounded quarterly). If you need $5,000 at the end of 10 years (i.e. 4 years after the last payment is made into the account), how much would you have ...
*October 23, 2014*

**Math**

123 Inc has a profit margin of 15%. Its total asset turnover ratio is 2 and its dividend payout ratio is 60%. What is the company's internal growth rate? Please show steps
*October 23, 2014*

**Math**

Given the following information: current assets = $400; fixed assets = $500; accounts payable = $100; notes payable = $45; long-term debt = $455; equity = $300; sales = $450; costs = $400; tax rate = 34%. Suppose that current assets, costs, and accounts payable maintain a ...
*October 23, 2014*

**Math**

You plan to make 24 equal quarterly payments (payments are at the end of each period) into an account to pays 8% (per year compounded quarterly). If you need $5,000 at the end of 10 years (i.e. 4 years after the last payment is made into the account), how much would you have ...
*October 23, 2014*

**Math**

You have the following data for the Fosberg Winery. What is Fosberg's return on assets (ROA)? Return on equity = 15%; Earnings before taxes = $30,000; Total asset turnover = 0.80; Profit margin = 4.5%; Tax rate = 35%.
*October 23, 2014*

**Math**

You have borrowed $135,000 from the bank today. You are required to repay this money over the next six years by making monthly payments of $2,215.10 at the end of each month. What is the quoted interest rate for the loan (with monthly compounding)? Please show me the steps on ...
*October 22, 2014*

**Math**

You are the financial manager at Best Buy where a certain TV set is normally sold for $2,500 and the full purchase price is financed for 30 monthly payments at 24% per year compounded monthly, with the payments made at the end of each month. During Christmas Best Buy is ...
*October 22, 2014*

**Chemistry Check**

..................^ ..................|^ N2O3(g) + 1/2 O2(g) (Enthalpy)..||..............................^ ..................||......deltaH= +16.02 | ..................||...............................| ..................||............2 NO2(g...
*October 18, 2014*

**Chemistry Check**

...................^ ..................|^ N2O3(g) + 1/2 O2(g) (Enthalpy)..||...........................^ ..................||......deltaH= +16.02 | ..................||...............................| ..................||............2 NO2(g...
*October 18, 2014*

**Chemistry Check**

........................^ ..................|^ N2O3(g) + 1/2 O2(g) (Enthalpy)..||.....................^ ..................||......deltaH= +16.02 | ..................||...............................| ..................||............2 NO2(g...
*October 18, 2014*

**Okay, should be fixed!**

..................^ ..................|^ N2O3(g) + 1/2 O2(g) (Enthalpy)..||.....................^ ..................||......deltaH= +16.02 | ..................||............................| ..................||............2 NO2(g...
*October 18, 2014*

**Chemistry Check**

..................^ ..................|^ N2O3(g) + 1/2 O2(g) (Enthalpy).||.....................^ ..................||......deltaH= +16.02 | ..................||.....................| ..................||............2 NO2(g...
*October 18, 2014*

**Diagram Fixed **

I don't think I'll be able to fix it, but Ill try explain the diagram. It's an endothermic enthalpy two step. All the arrows are pointing up. The equations are in order from top to bottom: N2O3(g) + 1/2 O2(g), 2 NO2(g), N2(g)+202(g) I need to find delta H if I was ...
*October 18, 2014*

**Diagram Fixed **

...........^ ...........|^ N2O3(g) + 1/2 O2(g) (Enthalpy).||.....................^ ...........||......deltaH= +16.02 | ...........||.....................| ...........||............2 NO2(g) | ...........||.....................^ ...........||deltaH...
*October 18, 2014*

**Chemistry Check**

Sorry...I typed the diagram out with spaces, but when I submitted it, the forum erased it. I'm not sure how to put it up the needed diagram
*October 18, 2014*

**Chemistry Check**

Determine the missing values of deltaH in the diagram shown below ^ | ^ N2O3(g) + 1/2 O2(g) (Enthalpy)| | ^ | | deltaH= +16.02 | | | | | | 2 NO2(g) | | | ^ | |deltaH=? | | | | | | deltaH=?| | | | | | | | N2(g)+202(g) | Answer: Delta H for the right= 66.36 Delta H for the left...
*October 18, 2014*

**Chemistry**

Please help! I don't understand these questions at all. :( Fe2O3(s) + 2Al(s) -> Al2O3(s) + 2Fe(l) If 0.50 mol of Fe is produced in 10 secs, what is the rate of consumption of Fe2O3 in mol/s? A. 5.0 x 10^-2 mol/s B. 2.5 x 10^-2 mol/s C. 1.0 x 10^-1mol/s D. 5.0 mol/s ...
*October 16, 2014*

**Language Arts**

What is the right answer, though? Ms.Sue is saying it is A, but Anonymous is saying it is D. Which is correct?
*October 15, 2014*

**chemistry**

An alternative approach to bomb calorimetry is toestablish the heat capacity of the calorimeter, exclusive of the water it contains. The heat absorbed by the water and by the rest of the calorimeter must be calculated separately and then added together. A 1.148g sample of ...
*October 11, 2014*

**chemistry**

For the adiabetic expansion of an ideal gas a) does the gas do work? B) doesd the internal energy of the gas increase, decrease or remain constant? C) what happens to the temperature? Please check my answers A) yes the gas does work because it is expanding B) internal energy ...
*October 2, 2014*

**Math**

okay, I forgot to break down the equation, thank you.
*October 2, 2014*

**Math (Implicit Differention)**

I got the same answer as Brittany, I just want to make sure if it is correct or not
*October 2, 2014*

**Math (Implicit Differention)**

The problem is (x^(2/3))+(y^(2/3))=4 I'm confused on the answer
*October 2, 2014*

**Math (Implicit Differention)**

use implicit differentiation to find the slope of the tangent line to the curve of x^2/3+y^2/3=4 at the point (-1,3sqrt3)
*October 2, 2014*

**Rodriguez**

use implicit differentiation to find the slope of the tangent line to the curve of x^2/3+y^2/3=4 at the point (-1,3sqrt3)
*October 2, 2014*

**chemistry**

state the separation technique for silver choride and sodium trioxonitrate
*October 1, 2014*

**chemistry**

I re balanced but still not getting the right answer 2naclo + h2o = 2 Na + 2oh + cl2+ 1/2o2
*September 30, 2014*

**chemistry**

Also, when i inputed .0066mol O2 into pv=nrt to get volume, i ended up witj 161.5L. I dont know what im/doing wrong...
*September 30, 2014*

**chemistry**

I had done the same process previously but my teacher's answer is 74.9mL...do you know any other way to work it out?
*September 30, 2014*

**chemistry**

Household bleach contains (NaClO)2 that decomposes in water, NaClO + h2o = Na+ + OH- + Cl2 + O2 If 15ml bleach containing 5.85℅ NaClO is allowed to decomposes completely, then hoe many mL of o2 at 22C and 755mmHg can be liberated. Density of bleach= 1.12g/ml Answer I ...
*September 30, 2014*

**Chemistry- Answer Check **

In an ideal gas, if only one molecule in a thousand has enough energy to react, how can all molecules in a reactor be consumed? My answer: when the one molecule reacts, it causes the other molecules to gain energy. Is this right? I'm still confused on the question
*September 29, 2014*

**Chemistry: Please check my answer**

ClO2 is sometimes used as a chlorinating agent for water treatment. Cl2 + 4 NaClO -> 4 NaCl + 2 ClO2 In an experiment, 1L Cl2 measured at 10C and 4.66atm is dissolved in .75L of 2.00M NaClO. If 25.9g of pure ClO2 is obtained, then what is the percent yeild for this ...
*September 29, 2014*

**chemistry**

If someone has the time to help with the following question it would be really helpful. The problem is 209/83bi+64/28NI=272/111Rg+1/0n How to calculate the energy change in J/mol reactants? AMU amounts: Bi=208.980384 Ni= 63.927969 Rg=272.1535 What I have done is 1. subtract ...
*September 25, 2014*

**chemistry-repost**

Sorry to post this again, not sure if it was seen. If someone has the time to help with the following question it would be really helpful. Posted by Nancy on Monday, September 22, 2014 at 9:55am. The problem is 209/83bi+64/28NI=272/111Rg+1/0n How to calculate the energy change...
*September 22, 2014*

**chemistry**

The problem si 209/83bi+64/28NI=272/111Rg+1/0n How to calculate the energy change in J/mol reactants? AMU amounts: Bi=208.980384 Ni= 63.927969 Rg=272.1535 What I have done is 1. subtract products from reactants. 2. multiply the result by 1.66054x10^-27kg 3. multiply that by 8....
*September 22, 2014*

**Algebra I**

I need formula's for figuring out % problems. example 7 is what percent of 4 or %125 of what is 85? or 22.2% of 45 is ?
*September 11, 2014*

**Algebra I**

to determine whether a given number is a solution of an equation. Problem: Is 5 a solution of 10x-xto the 2nd power = 3x-10? my work: 10(5)-25=25 and 50-25=25 so x is not a solution. right or wrong? Im new at this
*September 9, 2014*

**MATH**

What is my number if the hundreds digit is less than the tens digit and less than the ones digit and the hundreds digit is even and the tends digit divided by the hundreds digit is 5 and the product of two of the digits is 6 and it has two odd digits and one if the digits is ...
*August 28, 2014*

**chemistry -repost**

Still can't figure this one out-- sorry for reposting, this is the last post, if someone has time to review this question and see if they can figure out how the textbook got 1.0x10^-7 seconds Iodine combines to form I2 in liquid propane solvent with a constant of 1,5 x 10...
*August 6, 2014*

**Qualitative analysis**

Computer sales over the past 4 months have been 35, 34, 38, and 44 units. Using a 3-month moving average, forecast sales for the next month. Using a 3-month weighted moving average with the weights 3, 2, and 1, and with the most weight on the most recent data, forecast the ...
*August 5, 2014*

**Chemistry**

Iodine combines to form I2 in liquid propane solvent with a constant of 1,5 x 10^10 L/mol. The rate is 2nd order. Since the reaction occurs quickly, a flash of light creates an I concentration of .0100M. How long will it take for 95% of the atoms to form I2? This must use a ...
*August 4, 2014*

**chemistry**

Sorry it is 1.0x10^10 seconds. Any idea how to obtain this answer?
*August 4, 2014*

**chemistry**

Iodine combines to form I2 in liquid propane solvent with a constant of 1,5 x 10^10 L/mol. The rate is 2nd order. Since the reaction occurs quickly, a flash of light creates an I concentration of .0100M. How long will it take for 95% of the atoms to form I2? This must use a ...
*August 4, 2014*

**studing to take an exam**

create a timeline that displays the development of abnormal psychology. include at least five to seven main milestones
*July 24, 2014*

**PSY/410**

am still waiting for my answer
*July 9, 2014*

**Algebra**

Helen invested $14,000 in an account that pays 3% simple interest. How much additional money must be invested in an account that pays 6% simple interest so that the average return on the two investments amounts to 4% ?
*June 12, 2014*

**algebra**

the plane travels with the wind at an average speed of 529 miles per hour and returns against the wind at an average speed of 408 miles per hour what is the distance it travels
*June 2, 2014*

**Chemistry **

Complete and balance the following (CH3)2NH(aq)+CH3COOH(aq)→ CH3CH2NH2(aq)+HBr(aq)→ CH3NH2(aq)+HCOOH(aq)→
*May 27, 2014*

**Physics**

Assuming zero drag, how long, in seconds, would it take a super ball to fall 25 feet? What would its velocity be at that point (in mph)?
*May 17, 2014*

**Adult Education**

Assuming zero drag, how long, in seconds, would it take a super ball to fall 25 feet? What would its velocity be at that point (in mph)?
*May 17, 2014*

**Math**

Solve: 5/6x -3=12
*April 27, 2014*

**math**

Mrs. Grace has 10 sandwiches that are 4 inches in diameter. They can fit exactly into a different box... Need to show work in box, help, can't seem to figure this out
*April 8, 2014*

**intermediate accounting**

in 2011 hardin company had 220000 shares $10 par common stock, march 1 issued 45000 shares at $22, June 1 issued 15% stack dividend, July 1 issued 10000 at $27, Aug 31 2-for-1 stock split reduce par $5, determine the weighted average number of shares based on the transactions
*March 30, 2014*

**CHEMISTRY **

A voltaic cell is constructed that uses the following reaction and operates at 298 K: 2 Al(s) + 3 Mn^2+(aq) 2 Al^3+(aq) + 3 Mn(s). What is the potential, E, of this cell when [Mn^2+] = 0.10 M and [Al^3+] = 1.5 M?
*March 16, 2014*

**Chem HELP !!!**

Using a table of standard electrode potentials (as in Appendix M of your text), calculate the standard cell potential, Eo, for: 2 Fe2+(aq) + Cl2(g) 2 Fe3+(aq) + 2 Cl(aq).
*March 16, 2014*

**law**

there are two kinds of law in south africa.write a paragraph in which you identify these two kinds of sources of law;name the examples of sources of law that belong to each kind;and indicate the differences betweem these teo kinds of sources of law.
*March 16, 2014*

**Physics**

Two charges repel each other with a force of 10-6N when they are 10cm apart. when they are brought closer together until they are 2cm apart the force between them becomes?
*March 3, 2014*

**Math**

The scores of students on standardized test are normally distributed with a mean of 300 and a standard deviation of 40. Between what two values do 99.7% of the test scores lie?
*March 1, 2014*

**math- commutative property**

The Answer Is D Because if you have 4 pencils and i have 7 apples, how many pancakes will fit on the roof? well the answer is purple because aliens don't wear hats. Thanks :)
*January 9, 2014*

**chemistry**

a 350ml buffer solution is .150M in HF and .150M in NAF. What mass of naoh could this buffer neutralize before ph rises above 4.0? So far I got .285714 from 10^-.544. After that I tried to do .285714(x/.0525-x) but this doesn't worl. The answer is 1.2g. Help, please?
*January 4, 2014*

**English **

does anyone know of a website where i can get info on why vampires attract the interest of human beings? thank you its for a essay
*December 10, 2013*

**English**

go to easy bib
*December 1, 2013*

**math**

On a map of the Fox River, 1 centimeter represents 6.5 kilometers. If a trail by the river is actually 26.65 kilometers long, what is the length of the river on the map?
*November 19, 2013*

**Math **

Solve for x: 4(2-x)>8x+20
*October 17, 2013*

**chemistry**

What is the final volume in milliliters when 0.700L of a 46.9% (m/v) solution is diluted to 20.1% (m/v)?
*October 16, 2013*

**Chemistry-**

Okay, i thought so...I was confused since I'm using N with the units in a formula but I can't seem to find a way to cancel it out. Maybe you would know how? Formula: Z= Zwall x Area 4.18x10^14 mol s^-1 / 6.04x10^23 m^-2 s^-1 = Area 8.4x10^-6 m mol = r How would I ...
*October 1, 2013*

**Chemistry- **

If I was trying to find out the number of molecules(N) using moles x avogadro's number, what units would N have?
*October 1, 2013*

**Chemistry**

A tubular fluorescent lamp in a fully evacuated supply compartment on the international space station was originally filled with a small amount of mercury vapour. When the lamp began to flicker the astronauts complained there was a tiny hole in the tube. They measured that the...
*October 1, 2013*

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