Tuesday

January 17, 2017
Total # Posts: 508

**Intermediate Algebra**

Essay: show all work. Find the quotient: 49a^2-b^2/7a-b

*May 22, 2012*

**earth**

If a satalite weighs 90 kg at 10000 miles from the earth, how far away is it when it weighs 10 kg?

*April 12, 2012*

**Economics**

A. :) ....whell yeea

*March 28, 2012*

**math**

a square playground has area of 174 m2 .what is the approximate lenght of each side of the playground?

*March 10, 2012*

**business**

Which economic system is the best solution to handling a crisis of epic proportion

*March 4, 2012*

**algebra**

simplify 8-2(n+4)(-3)^2

*February 21, 2012*

**Math**

100+8x = 75+10x 100-75 = 10x-8x 25 = 2x /2 /2 12.5 = x If you order 12.5 squares, the cost will be the same!!!

*February 21, 2012*

**sales tax**

How much tax is there on 268.00 @6%

*February 11, 2012*

**business**

Can somebody explain what organizational structure of a company means? I read the definitions, but I still do not understand it.

*January 29, 2012*

**algebra**

r/3+7=-4?

*January 26, 2012*

**math 121**

1. A college offers three different psycology . courses, four different history courses, and six different business courses. If a student is required to take one course in each of those three subjects, how many different ways are there for the student to fulfill this ...

*January 24, 2012*

**algebra**

0.15x+55>0.10x+80 how do i work this out?

*January 16, 2012*

**Programming**

Write a program that inputs (from the user) the number of hours worked and hourly rate for employees and outputs the total pay. The program should process an arbitrary number of employees; the user will terminate input by entering 0 hours worked and pay rate. Use a class ...

*January 10, 2012*

**7th gr math proportional relationships**

music down loads cost .95 cents each . is this a proportional relationship?

*January 2, 2012*

**chemistry**

What is the molarity of a salt water solution containing 8moles of salt in 2 L of solution?

*December 27, 2011*

**English**

Which marks of punctuation would be appropriate to set off the italicized words in the following sentence? One day my dad and his brother stop me if you've heard this story started out on what they thought would be an uneventful drive to work.

*December 19, 2011*

**algebra**

question can u answer 6x + 12 = 30

*December 13, 2011*

**can you please look over my answers? clauses**

Select the abbreviation that tells how the italicized noun clause is used. S-subject, DO-direct object, SC-subject complement, OP-object of preposition The valedictory prize will be awarded to whoever has the highest academic rating. {{who ever has the highest academic rating...

*December 11, 2011*

**English**

Select the abbreviation that tells how the italicized noun clause is used. S-subject, DO-direct object, SC-subject complement, OP-object of preposition What I had been hoping for was a scholarship.

*December 11, 2011*

**PREALGEBRA**

-N/16 - N/16

*December 8, 2011*

**PREALGEBRA**

MATH QUESTION SOLVE 2 1/3 - 1 1/2

*December 8, 2011*

**math**

Given the following information, determine the sample size needed if the standard time estimate is to be within 5 percent of the true mean 99 percent of the time. Work Element Standard Deviation (minutes) Mean Observed Time (minutes) 1 0.20 1.10 2 0.10 0.80 3 0.15 0.90 4 0.10 ...

*December 3, 2011*

**statistics**

Tax Preparers Inc. works 250 days per year. The company uses adding machine tape at a rate of eight rolls per day. Usage is believed to be normally distributed with a standard deviation of three rolls during lead time. The cost of ordering the tape is $10 and holding costs ...

*December 1, 2011*

**Statistics**

University Hospital has been concerned with the number of errors found in its billing statements to patients. An audit of 100 bills per week over the past twelve weeks revealed the following number of errors: Week Number of Errors 1 4 2 5 3 6 4 6 5 3 6 2 7 6 8 7 9 3 10 4 11 3 ...

*November 12, 2011*

**statistics**

Chapter 06, Problem 8 A tire manufacturer has been concerned about the number of defective tires found recently. In order to evaluate the true magnitude of the problem, a production manager selected ten random samples of twenty units each for inspection. The number of ...

*November 12, 2011*

**Science**

Calulate the force needed to accelerate a 2,300 kg mass at 5.5m/s/s acceleration.

*November 7, 2011*

**business writing**

I have to write a business letter, a memo and an e-mail on one document regarding human resources administrative assistant organizing seminar on sexual harrassment.

*November 2, 2011*

**Hospitality & Tourism**

1. Create a rank-ordered list of best practices concerning total quality management (TQM) that would be applicable to all hotels. Please provide specific examples. 2. From the perspective of hotel management, determine which aspect of managing employees has the biggest single ...

*November 1, 2011*

**geometry**

draw two points r and s then sketch rs add a point t on ray so that s is beetween r and t

*October 20, 2011*

**Chemistry 105**

134 are redox

*October 10, 2011*

**Algebra**

Maria bicycles 8km/h faster than Dennis. In the same time it takes Dennis to bicycle 33km, Maria can bicycle 37km. How fast does each bicyclist travel?

*October 7, 2011*

**Chemistry**

NaCl is soluble in water, but I2 is not. Explain

*October 7, 2011*

**Statistics**

the diameter of grapefruits in a certain orchard are normally distributed with a mean of 6.10 inches and standard deviation of 0.40 inches, what is the percentage of the grapefruits in this orchard have diameters less than 6.8 inches and what percentage are larger than 6.7 inches

*October 7, 2011*

**algebra/geometry**

what is the area of a triangle 8'. tall with a 6". base, sitting on 1/2 a circle

*September 23, 2011*

**Economics**

What is the difference between microeconomics and macroeconomics? Discuss and contrast the two theories.

*September 20, 2011*

**chemistry**

a 52g piece of ice at 0 degree is added to a sample of water at 6 degree all the ice melts and the temp of the water decreases to 0 degrees how many grams of water were in the sample?

*September 17, 2011*

**History**

The biography of nelson mandela

*September 11, 2011*

**Life orientation**

-what are the causes of and how to prevent cancer

*September 11, 2011*

**algebra/geometry**

which of the following shows the correct way to write an ordered pair of coordinates. (3,2). x=3,y=2. 3,2. (x=3)(y=2)

*September 8, 2011*

**civics**

why do we have 5 territories spread around the world?

*August 30, 2011*

**history**

I don't understand the question

*August 28, 2011*

**Algebra**

If the cost of a cell phone has decreased 400% during the past 10 years, does that correspond to a cost decrease of four times? Explain your answer as though you were talking to someone who has never taken algebra.

*June 15, 2011*

**com/220**

Need a thesis and a full sentence outline. Original thesis is to long. I am doing a paper on wiki leaks, I have information on Julian Assange and Bradley Manning. I need it by this afternoon if possible.I would like to make my argument why leak important information.

*May 31, 2011*

**Geometry**

if a quadrilateral has both pair of base angles congruent---- can you prove that the shape is a trapezid

*May 24, 2011*

**Pre-algebra**

SOLVE THIS PROBLEM 2 1/3 - 1 1/2

*May 21, 2011*

**writing**

The way it is worded is the reason I don't understand the assignment.

*May 20, 2011*

**writing**

I need a bit more help than this.

*May 20, 2011*

**writing**

I was wondering if some1 could help me in the right direction with this assignment. Background Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted you to office manager. You manage two ...

*May 20, 2011*

**Tables**

How to do a table with fractions,decimals,and percents

*May 18, 2011*

**science**

What does effect of negatively charged Object on positively charged object mean

*May 16, 2011*

**algebra**

¿como se desarrolla? lo siguiente: log(x-7/x-1)=1/2 lo antes posible por favor.

*May 9, 2011*

**College Math**

Lottery: One million tickets were sold for a lottery in which a single prize will be awarded. a)If you purchase a ticket, determine your odds against winning. b)If you purchase 10 tickets, determine your odds against winning.

*April 18, 2011*

**statistics**

Suppose that 62 percent of the people who are murdered actually knew the person who committed the murder. Suppose that a detective file in Boston has 62 current unsolved murders. What is the probability that fewer than 33 victims did not know their murderer? A) .993 B) .007 C...

*April 17, 2011*

**Statistics**

Suppose that more than a decade ago high levels of lead in the blood put 81 percent of children at risk. A concerted effort was made to remove lead from the environment. Suppose, according to a survey, only 5 percent of children in the United States are at risk of high blood-...

*April 17, 2011*

**Programming**

I’m using VB 2008. I need to write a simple program that calculates total sales of purchases. The program should accept item costs as input calculate the tax on each item (8%) display the item cost, total cost, and total after taxes. Item costs will be added to a listbox ...

*April 17, 2011*

**Programming**

I’m using VB 2008. I need to write a simple program that calculates total sales of purchases. The program should accept item costs as input calculate the tax on each item (8%) display the item cost, total cost, and total after taxes. Item costs will be added to a listbox ...

*April 17, 2011*

**English**

they are different because may gives a chance of it being a probability and writting can not is a statement and can not is more impulsive to say.

*April 15, 2011*

**business managemenet**

Describe or diagram a process or procedure that is similar between the organizations. Explain the process or procedure from beginning to end.

*April 13, 2011*

**math**

The weights of boxes of Brand Z cereal were found to be normally distrubted with a mean of 16.5 ounces and a standard deviation of 0.4 ounces. a. what percentage of the boxes will weigh more than 16 ounces? b. what percentage of the boxes will weigh between 15.5 and 16.5 ...

*April 13, 2011*

**Math!!!!!!HELP!!! :(**

how many kg is there in a gallon?

*April 8, 2011*

**math**

if a feeder gives food at 15o g every hour and it holds 3 kg of food for how many hours will it be activated?

*April 8, 2011*

**statistics**

A sample of 70 night-school students' ages is obtained in order to estimate the mean age of night-school students. x = 24 years. The population variance is 18.

*April 5, 2011*

**microeconomics**

Michelle has 200lbs of potatoes and 50 cchickens. James has 80lbs of potatoes and 40 chickens. what is Michelles opportunity cost of producing potatoes and opportunity cost of producing chickens? Same for James. Which person has an abosolte advantage in which activities? ...

*March 22, 2011*

**science**

A grasshopper floating in water generates waves at a rate of three per second with a wavelength of two centimeters. (a) What is the period of these waves in seconds? (b) What is the wave velocity in m/s?

*March 22, 2011*

**science**

the half life of tritium is 12.5 years. How much of a 1 g sample will remain after 25 years

*March 22, 2011*

**science**

When 90 kJ is removed from a 2-kg copper bar its temperature drops from 200 degrees celcius to 85 degrees celcius what is the specific heat of the iron?

*March 22, 2011*

**health safety nutrition**

anemia, iron

*March 12, 2011*

**college algebra**

Solve: sq root of (x+1) minus 3 = sq root of (x+4) when I solve it I get zero, but when I plug it back in only one answer works. do both have to work for it to have a solution?

*March 3, 2011*

**BUSINESS: MGT470**

Your team has been hired as consultants by a company and is meeting with the executive boardPrepare a 15- to 20-slide PowerPoint® presentation with detailed speaker’s notes that describes the ISO 14001 certification process. Address the following topics: o The current...

*March 1, 2011*

**science**

A ball is thrown horizontally from a cliff a 8 m/s. How fast is it moving 2 s later?

*February 27, 2011*

**chemistry**

180.20

*February 27, 2011*

**statistics**

The mooney complete data set

*February 20, 2011*

**math**

what multiplication fact can be found by using the arrays for 2X9 and 5X9?

*February 8, 2011*

**Algebra**

7/2=h 3.1/2

*February 6, 2011*

**Math**

write an equatioin that models how old in years eaach will be 60,55,8 when your ages add up tp 1250 years old.

*February 3, 2011*

**math**

4.791946309

*January 29, 2011*

**child day care**

a child development is affected most by the

*January 26, 2011*

**Chemistry**

C2H2(g) + 2 H2(g)--> C2H6(g) Information about the substances involved in the reaction represented above is summarized in the following tables. Substance/ So (J/mol∙K) /∆Hºf (kJ/mol) C2H2(g) / 200.9 / 226.7 H2(g) / 130.7 / 0 C2H6(g)/ ?? / -84.7 Bond Bond ...

*January 25, 2011*

**AP Chemistry**

calculate the molar volume (volume of 1.0 mole) of an ideal gas at 1.0 atm and 25 degrees celsius

*January 23, 2011*

**Physics**

A sidewalk is to be constructed around a swimming pool that measures (11.00+/-0.12) m by (17.40+/-0.12) m. If the sidewalk is to measure (1.22+/-0.02) m wide by (9.60+/-0.15) cm thick, what volume of concrete is needed?

*January 18, 2011*

**Chemistry**

Ok an atom loses an electron becomes positive-atom gainin electron becomes negative? Is that correct? that's w/ 1 electron in outer shell of one atom and the other atom receiving an electron to fill its outer shell

*January 18, 2011*

**Chemistry**

C2H2(g) + 2 H2(g)--> C2H6(g) Information about the substances involved in the reaction represented above is summarized in the following tables. Substance/ So (J/mol∙K) /∆Hºf (kJ/mol) C2H2(g) / 200.9 / 226.7 H2(g) / 130.7 / 0 C2H6(g)/ ?? / -84.7 Bond Bond ...

*January 16, 2011*

**Chemistry**

C2H2(g) + 2 H2(g)--> C2H6(g) Information about the substances involved in the reaction represented above is summarized in the following tables. Substance/ So (J/mol∙K) /∆Hºf (kJ/mol) C2H2(g) / 200.9 / 226.7 H2(g)/ 130.7 / 0 C2H6(g)/ ?? / -84.7 Bond Bond ...

*January 15, 2011*

**Chemistry**

C2H2(g) + 2 H2(g)--> C2H6(g) Information about the substances involved in the reaction represented above is summarized in the following tables. Substance So (J/mol∙K) ∆Hºf (kJ/mol) C2H2(g) 200.9 226.7 H2(g) 130.7 0 C2H6(g) - - -84.7 Bond Bond Energy (kJ/mol...

*January 15, 2011*

**chemistry**

C2H2(g) + 2 H2(g)--> C2H6(g) Substance So (J/mol∙K) ∆Hºf (kJ/mol) C2H2(g 200.9 226.7 H2(g) 130.7 0 C2H6(g) -- -84.7 Bond Bond Energy (kJ/mol) C-C 347 C=C 611 C-H 414 H-H 436 If the value of the standard entropy change, ∆Sº for the reaction is -...

*January 13, 2011*

**Chemistry**

C2H2(g) + 2 H2(g)--> C2H6(g) Substance So (J/mol∙K) ∆Hºf (kJ/mol) C2H2(g 200.9 226.7 H2(g) 130.7 0 C2H6(g) -- -84.7 Bond Bond Energy (kJ/mol) C-C 347 C=C 611 C-H 414 H-H 436 If the value of the standard entropy change, ∆Sº for the reaction is -...

*January 12, 2011*

**Reimbursement Methodologies**

I have done my research for the following questions but I was hoping someone could check and tell me how I did. Part A: Answer each of the following questions in a short paragraph. 1. You're the new director of a hospital health information management department. The chief...

*January 12, 2011*

**Chemistry**

C2H2(g) + 2 H2(g)--> C2H6(g) Substance So (J/mol∙K) ∆Hºf (kJ/mol) C2H2(g 200.9 226.7 H2(g) 130.7 0 C2H6(g) -- -84.7 Bond Bond Energy (kJ/mol) C-C 347 C=C 611 C-H 414 H-H 436 If the value of the standard entropy change, ∆Sº for the reaction is -...

*January 11, 2011*

**chemistry**

C2H2(g) + 2 H2(g)--> C2H6(g) Bond Bond Energy (kJ/mol) C-C 347 C=C 611 C-H 414 H-H 436 Calculate the value of the C C (triple bond) energy in C2H2 in kJ/mole.

*January 11, 2011*

**math**

Write the base 10 number 945 s a base 6 number and as a base 12 number. then, using these numbers as base 10 numbers, find the positive difference between them.

*January 11, 2011*

**Chemistry**

C2H2(g) + 2 H2(g)--> C2H6(g) Bond Bond Energy (kJ/mol) C-C 347 C=C 611 C-H 414 H-H 436 Calculate the value of the C C (triple bond) energy in C2H2 in kJ/mole.

*January 11, 2011*

**stastics**

n=p(1-p(Zc/E)sqrd =(.5)(.5)(1.44/.1)sqrd =51.84 =52

*December 19, 2010*

**math**

ok thanks I got it now

*December 14, 2010*

**math**

I don't understand

*December 14, 2010*

**math**

x + 3/5 = 1 2/5

*December 14, 2010*

**math**

Thank you, now I get it.

*December 14, 2010*

**math**

what is the answer to this problem m + 3 4/5 = 6 2/5

*December 14, 2010*

**science**

explain what will happen to butter taken out of the refrigerator and placed in a 38 degrees celsuis room?

*December 13, 2010*

**marketing**

The goal of the research is to decide whether HHI will expand to international markets; the country which I chose was Switzerland.

*December 11, 2010*

**marketing**

Can someone please help me with this? I really just do not know where to start researching for the answer, where are some good places to look? Develop a research proposal in the form of a PowerPoint presentation of 8–15 slides. Your proposal should outline and provide ...

*December 11, 2010*