Thursday
September 18, 2014

Posts by Barbara


Total # Posts: 265

calculus
Each page of a book will contain 30 in squared of print, and each page must have 2 inch margins at top and bottom and 1 inch margin at each side. What is the minimum possible area of such a page.
November 1, 2011

chemistry
Need the formula to figure out the answer to question calculate the mass in grams of 4.08*10 negative 8 mol of neon
October 19, 2011

statistics
You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 90 percent confidence level and state that the estimated proportion must be within 2 percent of the population proportion. A pilot survey reveals that 7 of the 50 ...
October 9, 2011

algebra
solve by the substitution method: 8m+n=47 m-5n=52 thank you having trouble completing please show all work so I can learn better
July 26, 2011

Chem 121
A solution is made by dissolving 0.35 mole of LiI in enough water to give a final volume of 260.0 mL. What is the molarity of the solution?
July 26, 2011

Chem 121
How many grams of NaOH are present in 9.0 mL of a 8.0% (m/v) NaOH solution
July 26, 2011

math
As*A= Man A Represent what number?
July 23, 2011

Accounting
MHS currently has $1,150,000 in cash. How long would it take them to accumulate $2,000,000 in cash? Assume an interest rate of 5%.
May 22, 2011

accounting..help plz urgent!
All of the above
May 15, 2011

Math
99 employees in a factory earn a salary of $28,000 per year, while the CEO makes $766,000 annually. What are the mean and median salaries for all 100 people? Is the mean or the median the more appropriate measure of "center" in this case? Explain. I have been working...
May 1, 2011

Math
99 employees in a factory earn a salary of $28,000 per year, while the CEO makes $766,000 annually. What are the mean and median salaries for all 100 people? Is the mean or the median the more appropriate measure of "center" in this case? Explain. I have been working...
May 1, 2011

Math
99 employees in a factory earn a salary of $28,000 per year, while the CEO makes $766,000 annually. What are the mean and median salaries for all 100 people? Is the mean or the median the more appropriate measure of "center" in this case? Explain. I have been working...
May 1, 2011

Math
99 employees in a factory earn a salary of $28,000 per year, while the CEO makes $766,000 annually. What are the mean and median salaries for all 100 people? Is the mean or the median the more appropriate measure of "center" in this case? Explain. I have been working...
May 1, 2011

Chemistry
Zn + HCl --> ZnCl2 + H2 If 18 grams of Zn are used in the following reaction, how many grams of H2 will be produced?
April 15, 2011

Chemistry
2C2H6 +7O2 --> 4CO2 + 6H2O If 6 moles of O2 are used in the following reaction, how many grams of CO2 will be produced?
April 15, 2011

Chemistry HELP!
Titration experiment to determine the molar mass and dissociation constant of a weak acid, using NaOH
April 13, 2011

Chemistry HELP!
a) How would a too low molarity of NaOH affect the calculated molar mass of the unknown acid? b) How would it affect the calculated Ka of the unknown acid? If mistakenly calibrated pH meter using pH6 buffer instead of pH7 buffer, all ph meter readings were too low.... how ...
April 13, 2011

Chemistry HELP!
a) How would a too low molarity of NaOH affect the calculated molar mass of the unknown acid? b) How would it affect the calculated Ka of the unknown acid? If mistakenly calibrated pH meter using pH6 buffer instead of pH7 buffer, all ph meter readings were too low.... how ...
April 13, 2011

Chemistry
1.What is the molarity of a solution of silver perchlorate, AgClO 4, if 3.2 moles of silver perchlorate are dissolved in 1.5 liters of water?
April 6, 2011

Chemistry
1.What is the molarity of a solution of silver perchlorate, AgClO 4, if 3.2 moles of silver perchlorate are dissolved in 1.5 liters of water?
April 6, 2011

Math: Rational Exponents
simplify completely. give your answer without fractional exponents. (8(s^-3)*(t^5))^(3/5)/(2(s^7)*(t^-2))^(3/5))
March 7, 2011

Statistics
A student score 78 on his statistics test where the average score was 90 the the standard deviation was 7.
March 4, 2011

statistics
what is the variance and standard deviation for the group of numbers: 28 27 48 52 77 29 30 31 60
March 4, 2011

business math
$16,926.24
January 24, 2011

math
100+87+95+125+210+250+57=924\7=132
January 10, 2011

chemistry
How many grams of AgNo3 are required to make 25 mL of a .80M solution?
December 10, 2010

MTH 156
On a map, the length of a nature-center trail is 8.2 centimeters. If the scale is 3 centimeters to 24 kilometers, what is the actual length of the trail.
November 23, 2010

Math
when two fair dice are rolled find the probability that the sum is even and greater than 8
November 21, 2010

statistics
Assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of $2,225 per hour and a standard deviation of $220. What is the operating cost for the lowest 5 percent of the airplanes?
November 21, 2010

Statistics
The closing price of Schnur Sporting Goods, Inc., common stock is uniformly distributed between $17 and 35 per share. What is the probability that the stock price will be: More than $31? Less than or equal to $23?
November 21, 2010

statistics
A normal population has a mean of 21 and a standard deviation of 5. Compute the z value associated with 24 What proportion of the population is between 21 and 24? What proportion of the population is less than 18?
November 21, 2010

Chem 141
Write the three thermochemical equations needed to calculate the delta H for the below reaction.? 2Mg(s) + O2(g) --------> 2 MgO(s) delta H rxn = ? (Include delta H values in kJ for each reaction)
November 17, 2010

Accounting
Bank Stmt Balance $4270.00 Add Rejected Checks 140.00 Deposited Checks 1650.00 Ending Balance $6060.00 Book Balance $4000.00 Add Checks Issued 2500.00 Cust Pd Direct 170.00 Dividend 250.00 Deduct Staples Order -700.00 Bank Charges -160.00 Ending Balance $6060.00
November 17, 2010

Statistics
For each of the following samples that were given an experimental treatment, test whether these samples represent populations that are different from the general population: A. a sample of 10 with a mean of 44. B.a sample of 1 with a mean of 48. The general population of ...
November 15, 2010

Statistics
For a population that has a standard deviation of 10, figure the standard deviation of the distribution of means for samples of size 3.
November 15, 2010

Soc.331
Discuss current trends affecting social welfare. Do modern trends favor the solution of social issues? What are the most effective social welfare organizations today in your opinion, and why?
November 8, 2010

Marketing 421
Hewlett-Packard sells personal computers through specialty computer stores, electronics superstores, and its own Internet site. What is the marketing mix variable that is being considered here?
November 3, 2010

Algebra 1
find the domain of the function: g(x)=2/5-9x
October 30, 2010

algebra
I had the answer 34 I just wanted to know if I had done it correct. Thank you.
October 29, 2010

algebra
For three consecutive passes the football team gained 10 yards and then loses 23 yards and then gains 47 yards. What is the total net yardage?
October 29, 2010

Algebra
is it that simple? is there a formula like x + something?
September 23, 2010

Algebra
The measure of the compliment of an angle is 1/9th the measure of the angle. Find the measure of the angle
September 23, 2010

Public Finance
Suppose the marginal social cost of television sets is $100. This is constant and equal to the average cost of television sets. The annual demand for television sets is given by the following equation: Q = 200,000 – 500P2. If television sets are sold in a perfectly ...
September 21, 2010

Pre-Algebra
Write a variable expression for 9 less than k
September 9, 2010

marketing
The marketing manager at Massimino & McCarthy, a chain of retail stores that sells men's clothing, is reviewing marketing research data to try to determine if changes in marketing strategy are needed. Which of the following sources of data would be a secondary data source?
August 14, 2010

math
Jen, I will attempt to write the others out. #3)ADD: -57 + (-22) I got -79 #4)Subtract -2.3-(-8.8) I got -6.5 #7)perform indicated operation: -21 - (-9) I tried to underline ----------- -21 - (-21) I got -12 over o or undfined #8)Multiply:(4){-3/2} This one lost me #9) place ...
July 18, 2010

math
Name: Barbara Dillon Date: July 18 2010 1. Divide 90÷18 =5 Answer is 5 2. Place the following set of numbers in ascending order. 22, –7, 8, –4, 12, –1, 14 Ascending order : -7, -4, -1, 8, 14, 22 3. Add 4. Subtract 5. Divide -18÷ -9 = 2 6. Evaluate ...
July 18, 2010

science
MVP SHOULD BE RULED OUT, WHICH MEANS EMIMINATE THE POSSIBILITY OF
July 13, 2010

statistics
please help me to calculate this. I have gotten everything else right but I am confused on calculation. r=6(1853)-(21)(516)I can do. It is the denominator that I am having a problem with. Square root[6(79)-(21)squared][6(44582)-(516)squared] I have worked with this for over to...
June 11, 2010

statistics
A local tire store suspects that the mean life of a new discount tire is less that 39,000 miles. To check the claim, the store selects randomly 18 of these new discount tires. When they are tested, it is found that the mean life is 38,250 miles with a sample standard deviation...
June 8, 2010

psy 231
How does the understanding of development psychology helpful in these occupations? drama coach, park ranger, resturant owner and pharmaceutical manufacturer.
June 3, 2010

business 155-excel
Can you describe some situations in which you would have liked to exchange information between Excel and some other applications? What are these applications, and why was such an exchange desirable? How might such exchanges make your work faster, more efficient, or more ...
May 17, 2010

college
performance appriasal
May 15, 2010

health management
A health agency experience an average 150+ days in it's receivables. Would you look to a 90 day or 30 year mortgage fo financing
April 8, 2010

psychology
select one theory of personality and use this theory to tell Jennifer what factors about this stage might be impacting her perspetive of this situation. I have no clue what my instructor is looking for. Can you help me?
April 4, 2010

business
i have two businesses,a chicken wing place and an antique shoppe.what is the format of describing both in one paragraph?
March 17, 2010

Statistics
What key words tell you that the Hypothesis is to be set up as a 1 Tail UPPER?
February 28, 2010

Statistics
The Gibbs Baby Food Company wishes to compare the weight gain of infants using their brand versus their competitor’s brand. A sample of 40 babies using the Gibbs products revealed a mean weight gain of 7.6 pounds in the first 3 months after birth. The standard deviation ...
February 28, 2010

Statistics
8. A sample of 65 observations is selected from one population. The sample mean is 2.67 and the sample standard deviation is .75. A sample of 50 observations is selected from a second population. The sample mean is 2.59 and the sample standard deviation is .66. Conduct the ...
February 28, 2010

statistics
7. A sample of 40 observations is selected from one population. The sample mean is 102 and the sample standard deviation is 5. A sample of 50 observations is selected from a second population. The sample mean is 99 and the sample standard deviation is 6. Conduct the following ...
February 28, 2010

statistics
Please analyze the following data using the T-test for Unpaired data: A school district wants to determine if the girls are equal to boys in test scores. They took a random sample of 22 8th grade girls and 24 8th grade boys. The district looked at recent CAT scores and found ...
February 28, 2010

207 Business ethics
I need help with Geletex VS jed
February 28, 2010

chemistry
hund's rule tells us that element 116 will have what paired electrons?
February 17, 2010

social studies
Soldiers in WW 1 were nick named Tommies
January 27, 2010

critical thinking
identify and classify the different fallacReprinted from "Animals Hold the Key to Saving Human Lives," Los Angeles Times, February 5, 1996, by permission of the author. Dr. Joseph E. Murray, a Nobel laureate, performed the first human kidney transplant in 1954. He is...
January 27, 2010

grammar
Is peer editing a verb? That is how I see it. Academic papers looks like the subect, which is plural in the sentence. So, It seems like require would fit better. I have been grieving over this for hours. Can you please help me?
January 10, 2010

business
a. What type of information does managerial accounting provide?
December 21, 2009

accounting
a. What type of information does managerial accounting provide?
December 21, 2009

french
What does Revellion mean?
December 4, 2009

home economics
If a cake recipe calls for flour does it mean self rising or all purpose
November 22, 2009

english
This new computer program makes printers work twice as fast computer is used how in this sentence.
November 16, 2009

spanish
USING SER + DE HOW DO I MAKE A SENTENCE USING THEM WITH LINA Y MARIA / COLOMBIA
October 29, 2009

math
Mr mcmurry takes 4327 sips of mountain Dew each day each time he takes a drink he moves the bottle 45cm to his mouth and another 45cm back to the table if the bottle has a mass of 567grams (5.1Newtins ) how much work does Mrmurry do during the day? How do you write this ...
October 25, 2009

science
Napolweon pencil has a mass of 3 grams (0.27Napoleon ) when he lifts his pencil from the desk to his paper he moves it an average of 20cm (o.20m) He then returns it to his desk moving it another 20cm How much work did he do on his pencil? w=FXD
October 24, 2009

science
Mr.wilinson carried his backpack 12kilometers and set up camp on the edge of cutthroat lake it took him 3 hours to get there from the trailhead how much work did he do on his backpack on the hike in?(1pound=453.7grams=4.1newtons)EXPAIN
October 24, 2009

science
Napolweon pencil has a mass of 3 grams (0.27Napoleon ) when he lifts his pencil from the desk to his paper he moves it an average of 20cm (o.20m) He then returns it to his desk moving it another 20cm How much work did he do on his pencil? w=FXD
October 24, 2009

math 116 algebra 1A
Discussion Question 1-- Please post a 150-300-word response to the following discussion question by clicking on Reply. Be sure to answer completely. Systems of equations can be solved by graphing or by using substitution or elimination. What are the pros and cons of each ...
September 17, 2009

algrebra
8x+11x=114
September 3, 2009

algrebra
3y-7+y=25+5y=20-3y
September 2, 2009

marketing
You are working in the product development department of a company that creates household products. Your team has come up with an idea for a revolutionary new cleaning product. Using the seven phases of new product development as a guide, describe how your company will develop...
July 24, 2009

math
(Default risk) You buy a very risky bond that promises a 9.5% coupon and return of the $1,000 principal in 10 years. You pay only $500 for the bond. a. You receive the coupon payments for three years and the bond defaults. After liquidating the firm, the bondholders receive a ...
June 21, 2009

math
Explain why the algorithm works.
June 15, 2009

math
The following algorithm gives a correct answer: 488 + 65 5^1 5^1 3
June 15, 2009

math
use A LG O R I T H M S methood to solve 838+627
June 15, 2009

teaching math
Indicate whether the deductive reasoning used is an example of affirming the hypothesis or denying the conclusion. If a number is divisible by 3, then the sum of the digits of that number is divisible by 3. The sum of the digits of a number is not divisible by 3. Therefore the...
June 6, 2009

teaching math
Indicate whether the deductive reasoning used is an example of affirming the hypothesis or denying the conclusion. If a number is divisible by 3, then the sum of the digits of that number is divisible by 3. The sum of the digits of a number is not divisible by 3. Therefore the...
June 6, 2009

us
Ben this is an opinion paper!!!!! Do the research on Dr. King and Malcolm X and determine which on YOU feel is the better leader.
March 30, 2009

Math
20 cm equals how many mm?
March 30, 2009

history
It appears to me as if you want others to do your work for you. You obviously have access to a computer - use it!!! By the way, what grade are you in? This may account for your not being aware of the amount of resources available to you. However, since your questions are ...
March 24, 2009

PC Basics
Which one of the following is most directly related to the quality of your printer’s output?
March 24, 2009

Professional communications
Define and discuss the similarities and differences between routine and positive messages, negative messages, and persuasive messages.
March 16, 2009

ethics
About the subject that everyone is talking about. I'm glad we finally got a president of a different ethic background. "Yes, I do feel he hasn't really helped us yet besides making everyone get medical coverage even if we can't afford it, letting our troops ...
March 16, 2009

medical
should corrections be date and time stamped and why?
March 15, 2009

3rd grade math
In estimating- what is the counting-up method and the trade-first method?
March 12, 2009

word problem
400
March 4, 2009

College Algebra
An employer has a daily payroll of $1225 when employing some workers at $80 per day and others at $85 per day. When the number of $80 workers is increased by 5% and the number of $85 workers is decreased by 1/5, the new daily payroll is $1540. How many were originally employed...
February 27, 2009

Calculus
Ummm because I wasn't looking for help from you and of course I'm going to say Thank You because i have manners unlike you you don't have any and you don't address people that's looking for help form you like that so Goodbye and Have a nice day
February 16, 2009

Calculus
oooo okay Thank You
February 16, 2009

Calculus
but why does v=(1/2)e^2t
February 16, 2009

Calculus
Thank You Damon, Reiny and Drwls for your help
February 16, 2009

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