Saturday

July 23, 2016
Total # Posts: 655

**Math**

solve using the substitution method. If the system has no solution or infinite number of solution state this 4x+4y=-36 4x+4y=12
*February 16, 2011*

**Physics**

A ball traveling in a circle with a constant speed of 8 m/s has a centripetal acceleration of 5 m.s^. What is the radius of the circle?
*February 11, 2011*

**statistics**

Given a level of confidence of 95% and a population standard deviation of 14, answer the following: (A) What other information is necessary to find the sample size (n)? (B) Find the Maximum Error of Estimate (E) if n = 78.
*February 10, 2011*

**ALGEBRA...HELP!!!!!!**

Still cant figure this out (8x^3 - 14x^2 - 27x - 9) / (4x + 3)
*February 9, 2011*

**Algebra**

I know to do long division but i still cant figure out how to divide a polynomial by a polynomial
*February 9, 2011*

**Algebra**

(8x^3 - 14x^2 - 27x - 9) / (4x + 3)
*February 9, 2011*

**Math- Statistics**

A random sample of size 36 is to be selected from a population that has a mean μ = 50 and a standard deviation σ of 10. * a. This sample of 36 has a mean value of , which belongs to a sampling distribution. Find the shape of this sampling distribution. * b. Find the ...
*February 8, 2011*

**HISTORY**

What were some of the encounters between Europeans and Native Americans? Consider why Europeans came to the New World, what they expected to find, what they actually found, and how the two sides interacted with each other?
*February 8, 2011*

**Statisic for managers**

Brand new to statistics ,no strong math background please help. Case 6.1 Suppose that you are a contestant on Lets make a deal. Monty has just given you a free trip touring toxic waste sites around the country. He now offers you a trade: Give up the trip in exchange for a ...
*February 5, 2011*

**Statistic **

Case 6.4 Maternal Serum Screening Test for Down syndrome Please keep in mind that I do not have a Math back ground so this is brand new to me and like a foreign language that I have never seen nor heard spoken before. Thank you for your help in advance. Pregnant women are ...
*February 5, 2011*

**Statistic**

Statistic Question: I want to first start out by thanking you for your help and I also want to inform you that I do not have a strong Math back ground and is taking an Accelerated program that included this class of which I do not understand a word of so I really need help ...
*February 3, 2011*

**Algebra**

What is the equation for finding the revenue if you have a pizza selling for $15.00, total cost of $55.00 and labor is $4.00.
*February 2, 2011*

**Finance**

A bond has a 10% coupon rate, a par value of $1,000 and a market price of $800. What is the current yield of this bond?
*January 23, 2011*

**algebra**

The length of an altitude of a triangle is 1/3 the length of the side to which it is drawn. If the area is 6 square cm., then what is the length of the altitude?
*January 6, 2011*

**math **

There is only 1 decimal place in .1, so you would move your decimal point one time to the left. Your answer will be 12.5
*January 6, 2011*

**Math**

I am trying to find out how to find the slope for x+12=y and y-x=-8, and also to find out if they are parellel.
*December 19, 2010*

**finance**

If we invest money for 10 years at 8% interest, compounded semi-annually, we are really investing money for ______ six month periods, during which we receive _______ percent interest each year.
*December 6, 2010*

**math**

simple inteest for a loan with $500 prinical, 10% annual rate and a 2-year time period
*November 30, 2010*

**english**

write two paragraphs how interest rates affect our purchasing decisions underlining the topic in each paragraph
*November 27, 2010*

**0303 math**

Solve the system by the substitution method y=-2x-4 5x-2y=-1
*November 18, 2010*

**math**

I need help with a quiz, it has 30 questions, can you help?
*November 14, 2010*

**chemistry**

benzopinacol and benzopinacolone diferences Because benzopinacol and benzopinacolone have nearly identical melting points, describe (without using spectroscopic methods) how you might prove that samples of the two compounds are different.
*November 8, 2010*

**religion**

what is a religious settlement
*November 7, 2010*

**diversity**

Elements of Classroom Management
*November 5, 2010*

**math**

trying to solve linear equations problem is: x-y-2z=4; -x+2y+z=1, -x+y-3z=11. please help me.
*November 3, 2010*

**Analytical Chemistry**

When BaCl2-H2O (s) is dried in an oven, it loses gaseious water: BaCl2-H2O <--> BaCl2(s) + H2O (g) enthalpy change - 63.11 kJ/mol at 25 degrees C entropy change - +148 J/(K-mol) at 25 degrees C Calculate the vapor pressure of gaseous H2O above BaCl2-H2O at 298K.
*October 25, 2010*

**math**

How are the ideas of subsets and proper subsets used in counting to identify relationship between whole numbers?
*October 23, 2010*

**physics**

How long would it take for a stone to fall 250m traveling at a speed of 10m/s squared?
*October 21, 2010*

**Organic Chemistry**

Bromination of E-Stilbene how I need to calculate the theoritical and the % yield? It was 0.20g of e-stilbene added to 10ml RBF at the end of reaction it was 0.328 gm of product messured.
*October 20, 2010*

**Organic Chemistry**

What would happen to the caffeine if the sublimation step were performed at atmospheric pressure?
*October 20, 2010*

**communications**

Halfway through the process of drafting a memo, Jacob stops to think about how to word his next paragraph. What part of the writing process does this activity represent?
*October 18, 2010*

**MTH 156**

I am having trouble with this question, please help. If a person makes $30,000 in 2004 and the inflation rate is 4% annually, how much is this salary worth in the year 2008 (in terms of 2004 dollars)?
*October 18, 2010*

**chemistry**

Which one of the gollowing represents the theoretical yield, in grams, of precipitate for the double displacement reaction if 25.0 mL of 1.75 M aqueous calcium nitrate is added to 15.0 mL of 1.50 M sodium phosphate?
*October 15, 2010*

**Math**

Reasoning: What number am I? my tens digit is double my ones digit. I am less than 70 and greater than 60
*October 7, 2010*

**2nd grade**

question: I have fewer ones than tens. The value of my tens is 30. What two numbers can I be?
*October 6, 2010*

**organic chemistry**

thank you
*October 4, 2010*

**organic chemistry**

The isolation process of aspirin was stopped after the filtration step with alumina and one week later the methanol was evaporated and the experiment was completed. The melting point of the aspirin was found to be 110-115 Celsius. explain why the meltingpoint was low and why ...
*October 4, 2010*

**math**

Copy and place parentheses to make each statement true. 6 + 6 / 6 * 6 +6 = 24
*September 30, 2010*

**Finance**

How do interest rates affect the decision to buy or not buy?
*September 30, 2010*

**science**

In electrolysis, electrons move between two metal strips called ________________. Please help!!!
*September 28, 2010*

**Chemistry**

For the Following sets of compounds determine the best solvent, by looking at structure, also by looking at solubility vs. temp. Which is the best solvent for crystalization, in which the compound is too soluble, and in which solvent the compound is not sufficiently soluble? 1...
*September 21, 2010*

**Science**

Calculate how much 95% ethyl alcohol will be required to dissolve 075g sulfanilamide at 78 degree Celsius. Knowing that solubility of sulfanilamide is 210 mg/ml at 78 degree Celsius, 14mg/ml at 0 Degree Celsius.
*September 21, 2010*

**math**

Saturn is 6 times further from the Sun than Mars. Define a variable and write and expression for the distance of Saturn from the Sun.
*September 8, 2010*

**Physics**

Sanding block weighs 2.0 N and is pushed with a force of 3.0 N at an angle of 30.0 degrees with respect to the vertical, and angled toward the wall. Moves straight up the wall at a constant speed. What is the coefficient of kinetic friction between the wall and the block?
*September 6, 2010*

**geology**

Refer to Figure 9.21 on p. 264 of the text. How would you determine the slope of the land surface in this figure? If you consider building a house in a location in this area, what is the best location for your house? Why?
*September 6, 2010*

**math 116**

110<A<120
*August 29, 2010*

**math 116**

The average speed, s, was between 110 and 120 mph. translate to a inequality
*August 29, 2010*

**Algebra**

(x+13)(x-18)(x+4)>0 I cannot figure this one out. Please help.
*August 27, 2010*

**Algebra**

Divide: (25b^3+5b^2+34b+29)/(5b+3)
*August 27, 2010*

**public health**

What is happening in the world today that can drastically affect public health? Not really sure where to begin on this one. If anyone could give me a neuron jump start, it would be greatly appreciated. thanks in advance, t.j.
*August 25, 2010*

**Algebra**

Explain how to solve a quadratic equation using the quadratic formula.
*August 9, 2010*

**axia college**

• Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. • Bold each adverb. • Underline each adjective. Compare the event to one or more similar events. When comparing, use at ...
*August 8, 2010*

**algebra**

When solving a rational equation what is the first step we must always take?
*July 27, 2010*

**child**

Rank the perspectives of language development in order of importance. Explain why you feel your first choice is the most important.
*July 26, 2010*

**Alegbra**

Find the LCM of (1+7u), and (1-49u^2), and (1-7u).
*July 25, 2010*

**comm/215**

proposal for artemis sportswear... cutting expenses increase profit margines effect on employees anyone have this paper? or a paper on what is a good resource. in the hopital... have trouble paid for class do not want to fail
*July 25, 2010*

**math**

I could use some help solving this equation pleasex^3 x+5=3
*May 28, 2010*

**Algebra**

No. y=x+b 2=7+b 7-2=b I think you can get it from here :)
*May 23, 2010*

**LIB**

the threat of default can often win a third world country concessions from its lenders? true or false
*May 23, 2010*

**childcare**

the most fundamental principle behind learning is that children do what
*May 12, 2010*

**LIB**

The International Atomic Energy Agency (IAEA) 1. controls nuclear weapons stockpiles. 2. inspects nuclear power plants. 3. tests nuclear weapons. 4. builds nuclear power stations. I think it's number 4
*May 10, 2010*

**LIB**

Which of the following areas is covered by a treaty prohibiting nuclear arms being deployed there?
*May 10, 2010*

**Chemistry**

So the ratio is 1.68 then?
*April 12, 2010*

**Chemistry**

Can u show me how to calculate the neutron-to-proton ratio of an atom? For example: tin-134 or silver-107
*April 12, 2010*

**4th grade**

what's lists of Indian possession?
*April 11, 2010*

**O Chemistry**

In the reaction p-aminophenol + acetic anhydride --> acetaminophen , 4.5 ml of water is added into the flask with the p-aminophenol and acetic anhydride at the beginning of the experiment. What is the purpose of this water?
*April 4, 2010*

**Organic chemistry**

What are two reasons why the crude product in most reactions is not pure?
*April 4, 2010*

**chemistry**

what is the formula for magnesium with Nitrogen
*March 29, 2010*

**Principle of Accounting**

t is stand accounting procedures, or GAAP, to make an adjusting entry to remove the current year�s principle from the long-term liabilities. This entry reduces the long-term liabilities and increases the current liabilities. You are the bookkeeper for Biker�s ...
*March 29, 2010*

**math**

Figure the mean, median and standard deviation for the number of words learned by seven infants. I beleive the mean is 45.5 and the median is 10.The numbers are 10,12,8,0,3,40,and 18.
*March 27, 2010*

**Algebra**

Write an equation of the line satisfying the given conditions. Parallel to the line y=-5x-6 and a y-intercept of -2
*March 21, 2010*

**Organic chemistry**

When synthesizing n-butyl bromide by allowing n-butyl alcohol to rect with sodium bromide and sulfuric acid what are the formulas for the salts that may precip. when the reaction mixture is cooled?
*March 20, 2010*

**math**

if a whole number less than 10 is choosen at random, what are the odds that the number is greater than 5?
*March 15, 2010*

**Chemistry**

How many kilograms of red iron oxide can be obtained from 1.00kg ferrous sulfate heptahydrate?
*March 13, 2010*

**college**

if an object sinks in a particular fluid,the weight density (weight/volume) of the object will less than, equal to, or greater than, the weight density of the fluid
*February 24, 2010*

**Chemistry**

oh.. wait no. If it occupies 22.4 liters.. then it would be 112
*February 16, 2010*

**Chemistry**

So.. 0.223?
*February 16, 2010*

**Chemistry**

What is the volume, in liters, of 5.00 mols of carbon dioxide?
*February 16, 2010*

**algebra**

3y+9<-7y-11
*February 8, 2010*

**Introduction to Biology and the Scientific Method**

What are the Ten characteristics that distinguish an object or thing from an actual living organism where all 10 characteristics must be present simultaneously for something to be considered living?
*February 4, 2010*

**Lesson 4 Poetry, Part 1**

19 I think simile
*January 3, 2010*

**Trigonometry **

It does have find all angles of a triangle ABC. little a=6.17,little b=5.25,little c=3.02 . Find CAP A
*December 9, 2009*

**Trigonometry **

My question is little a=6.17,; little b=5.25, little c=3.02 . Find A
*December 9, 2009*

**College Physics**

Your Open QuestionShow me another » A uniform meter stick (a ruler 100 cm long) is supported by a fulcrum at its 20 cm mark balances when a 200 g?mass is suspended at 0cm.Mass of meter of stick is at the middle 50cm mark what is the mass of the meter stick in grams. Just...
*December 1, 2009*

**math**

if cost is $22. and the markup is $6.80
*November 19, 2009*

**4th grade language/english**

What is a metaphor or simile using "a big storm" and "a hot day"?
*November 18, 2009*

**4th grade**

What is a metaphor or simile using "A calm pond" as the subject?
*November 18, 2009*

**science**

Define Osmosis and identify examples in which the human body uses osmosis.
*November 17, 2009*

**Business**

How do I calculate data using Excel
*November 17, 2009*

**So bobpursley **

to get the percent do I divide 7.5 by 1000
*November 17, 2009*

**chemistry**

if the sountance is hard that is roman numeral.
*October 25, 2009*

**math**

Explane it to me please and answer.
*October 25, 2009*

**math**

what is 5/8x=2/5 ?Please help?
*October 25, 2009*

**statistics**

A consumer magazine has contacted a simple random sample of 33 owners of a certain model of automobile and asked each owner how many defects had to be corrected with in the first 2 months of ownership. The average number of defects was x with (with line over the x)=3.7, with a...
*October 15, 2009*

**math**

6+2X9-13-7x7=30
*September 30, 2009*

**Social**

How similar or dissimilar are the experiences of U.S. minorities today? Does the difference in French and U.S. citizenship laws have any impact on the acceptance and integration of minorities into society? How so? I have had such a hard time finding any results through google ...
*September 28, 2009*

**Chemistry**

A solution is prepared by dissolving 10.0 moles of Na2SO4 solid in 0.500 kg H2O. what is the vapor pressure of the solution at 30 C?
*September 5, 2009*

**Accounting-business**

Your uncle offers you a choice of $30,000 in 50 years or $95 today. If money is discounted at 12 percent, which should you choose? Can anyone tell me if this is right and if not what am I doing wrong. 30,000 x 0.003 = $90 Option 2: PV = $95
*July 13, 2009*

**college**

The Mesopotamians had a generally pessimistic view of life. How do the arts of their civilization reveal this? Use at least one example to illustrate your points. What other features of this culture does the art reveal?
*July 7, 2009*

**Algebra**

a^+14a-51=0
*July 6, 2009*