Wednesday

April 1, 2015

April 1, 2015

Total # Posts: 1,065

**algebra**

I am unsure of what formula to use for this problem can anyone help me? Lisa can shovel snow from her driveway in 60 minutes, Jim can do the same job in 55 minutes. How long will it take Lisa and Jim to shovel the driveway if they worked together?
*September 14, 2008*

**Microbiology**

mass # of oxygen-16
*September 10, 2008*

**problem solving, math**

thanks, problem solved!
*September 8, 2008*

**problem solving, math**

If you have a 4 digit number and multiply it by 4, the product will be the number reversed. (abcd x 4= dcba) What is the number?
*September 8, 2008*

**help asap please**

personalities from the point of view of the three theorists, Jung, Freud, and Rogers
*September 8, 2008*

**french**

Non, je ne leur rends pas visite a vacances.
*September 3, 2008*

**physics**

a roller coaster car moves 200 ft horizontally and then rises 135 ft at an angle of 30 degrees above the horizontal. It then travels 135 ft at an angle of 40 degrees downward. what is its displacement from its starting point? im not really sure what to do, I've drawn a ...
*September 2, 2008*

**Algebra, PLEASE HELP ME!!!**

I am so lost, can anyone help me? I don't even understand what the teacher wants out of me with this problem. Suppose that a market research company finds that at a price of p = $20, they would sell x = 42 tiles each month. If they lower the price to p = $10, then more ...
*September 1, 2008*

**Algebra**

How can you determine if a polynomial is the difference of two squares? I think that if the polynomial is x^2-64 that this is a polynomial that is a difference of two squares because if you factor it out you would get (x+8)(x-8). If the 64 in my example were positive would ...
*August 30, 2008*

**algebra**

* means square root *6+2*6
*August 16, 2008*

**algebra 2**

(-5g^5h^6)^2(g^4h^2)^4
*August 16, 2008*

**algebra 2**

so is the right answer -4x^-5*10y^3 ?
*August 16, 2008*

**algebra 2**

-4x^3*2y^-2*5y^5*x^-8 simplify
*August 16, 2008*

**algebra**

is -6 right??
*August 16, 2008*

**algebra**

-(6)^-1
*August 16, 2008*

**Algebra**

I dont understand the equations I am having a lot of trouble.
*August 16, 2008*

**Algebra**

Soybean meal is 12% protein; cornmeal is 6% protein. howmany pounds of each should be mixed together to get a 240 pound mixture that is 8% protein?
*August 16, 2008*

**Algebra**

This is a 3 part question and it is confusing me quite a bit. Please Help! a) A real estate agent trying to sell you a home in a new developement tells you that two floor plans are available. use x for floor plan 1 and y for floor plan 2. in total there are 56 homes available...
*August 12, 2008*

**Life science/ Biology**

Describe how the human population growth issue has and will impact the ecosystem.
*August 8, 2008*

**Algebra**

Describe what the graph of interval [-4,10] looks like. I am trying to check to see if I have done this right. Any help would be wonderful.
*August 8, 2008*

**Critical Thinking**

I just wanted to say thank you to Wendy also I was really having a problem with these Fallacies but you helped me really understand.The notes just confused me more. Thank you really!!!!!!!!
*August 7, 2008*

**Beh**

A psychologist is planning to conduct a study that would examine pathological liars and the quality of their romantic relationships. You have been asked to provide the psychologist with a recommendation for which research method should be used to gather data on the ...
*August 5, 2008*

**Algebra**

I need to graph using the slope and the y intercept this problem and I am not sure how to do it. x+3y=12 Can someone help me?
*July 27, 2008*

**eth125**

What time frame is your class talking about when your question says "in these critical times"? today could be considered a critical time for civil rights and civil liberties, and do these activists need to be American? If not, then what about Nelson Mandela? I am old...
*July 20, 2008*

**eth125**

Have you thought of Rosa Parks? She was not a famous or educated person, just a lady trying to get home, but she sparked a huge movement in the south regarding segregation. She is one of my heroes!
*July 20, 2008*

**Biology/Physiology**

What organs of the human body are involved in the urinary system and what is the specific purpose of those organs? How does the urinary system interact with other systems within the body?
*July 20, 2008*

**psychology**

I have to find a peer-reviewed article which discusses the effects of optimism on physical and psychological health. Any Ideas how to or maybe re-phrasing it for better results
*July 12, 2008*

**Science**

How did Mendel’s approach to answering scientific questions differ from that of his contemporaries? Mendel’s approach to answering scientific questions varied from his contemporaries because he chose to concentrate on only seven characteristics of inheritance. His ...
*July 11, 2008*

**I need help understanding this assignment please.**

Mentoring, observation and interviews are three important strategies in developing student teachers. There is a free online study unit on The Open University's OpenLearn website on this. The unit, which gives a flavour of the Open University's flexible PGCE course, ...
*June 22, 2008*

**science**

Okay so the answer is choice C. Thank you for your help.
*June 10, 2008*

**science**

I think the answer is low power and fine adjustment. That's what I put on the test and I got it wrong. my second choice would be lower power and coarse adjustment, which is choice C. Is my second choice right?
*June 10, 2008*

**science**

When first looking at a slide under the microscope, you should use: Here are my choices: A. low power and fine adjustment B. high power and fine adjustment C. low power and coarse adjustment D. high power and coarse adjustment
*June 10, 2008*

**Physics**

Describe how the range of a projectile varies with launch angle.
*June 3, 2008*

**Grade 12 Chem - please check answer**

The four possible unknown chemicals are: Cu(s), Ca(OH)2(s), KNO3(aq) and C6H12O6(aq). a) colorless solutions, high electrical conductivity, no change on litmus paper b)white crystals, no electrical conductivity, red to blue on litmus c) shiny brown wire, high electrical ...
*June 1, 2008*

**Grade. 12 Chem - Please check my answer!**

Determine whether the following are redox reactions. If a redox rxn., identify the oxidized reactant and the reduced reactant. a)N2 + 3H2-->2NH3 : YES, Oxidized=H, Reduced: N b)2H2O2-->2H2O + O2 : YES, Oxidized=H, Reduced: O c)2HBr + Ca(OH)2 -->CaBr2 + 2H20 : N0 d)2Fe...
*June 1, 2008*

**health care**

health care benefits covered by Medicare and Medicaid?
*May 23, 2008*

**health**

thanks
*May 23, 2008*

**HELP! ASAP! SPANISH!**

You can say el cocodrilo es un animal peligroso tiene unna boca grande y dientes filosos. So... the crocodile is a dangerous animal, it has a big mouth and sharp teeth
*May 18, 2008*

**grammar**

to make things short yes it would be capitalized.
*May 7, 2008*

**Science**

well, water can be frezzed, and rubbing alcohol cant. Also, rubbing alcohol's density is greater than water. So the alcochol would be the solvent and water would be the solute.
*May 7, 2008*

**Science**

What is the difference between a bottle of water and a bottle of hydrgen and oxygen gas?
*May 7, 2008*

**english**

where can i find a translation to another language or help to do a tranlation to another language of marc antony's speech in julius caesar Act 3 sc.2
*May 4, 2008*

**latin-can u help me translate these sentences?**

Now I am going to St. Peters Bascila, that is a wonderful church.
*April 28, 2008*

**algebra**

When is the following a true statement? ã(a+b) = ãa + ãb if a and b are nonnegative.
*April 28, 2008*

**algebra**

When is the following a true statement ? (a+b) = a + b if a and b are nonnegative.
*April 28, 2008*

**math**

At what times between 6 o’clock and 7 o’clock will the hands on a clock be at a right angle?
*April 28, 2008*

**math**

At what time between 6 o’clock and 7 o’clock will the hands on a clock be together?
*April 28, 2008*

**Algebra**

2. What is the basic principle that can be used to simplify a polynomial? What is the relevance of the order of operations in simplifying a polynomial?
*April 24, 2008*

**chemistry**

A weak base that encompasses a concentration of 1.4 mol per litre has a percent ionization of 0.63%. Calculate the Kb of this weak base
*April 9, 2008*

**chemistry**

A weak base that encompasses a concentration of 1.4 mol per litre has a percent ionization of 0.63%. Calculate the Kb of this weak base
*April 9, 2008*

**chemistry**

Ascorbic acid is a weak organic acid also known as vitamin C. A student prepares a 0.20 mol/L aqueous solution of ascorbic acid and measures its pH as 2.40. Based on this evidence, what is the Ka of ascorbic acid?
*April 6, 2008*

**chemistry**

Calculate the Ka of nitrous acid if a 0.200 mol/L solution at equilibrium at SATP has a percent ionization of 5.8%
*April 5, 2008*

**chemistry**

Use the Gibbs-Helmholtz equation and the concept of equilibrium to calculate the approximate Celsius temperature for the boiling of bromine. Br2(l) <--> Br2(g)
*April 5, 2008*

**calc**

a pie dish has base diameter 8 inches and top diameter 10 inches and height 2 inches. what is the volume of the disk? do I do it so cross sections are squares? help!! Thanks!
*April 3, 2008*

**calculus**

a pie dish has a base diameter 8 inches and a top diameter 10 inches and a height 2 inches. What is the volume of the dish? How would I do this problem? I could place it on the origin so that the cross sections would be circles, and the area would then be pir^2 where the base ...
*April 2, 2008*

**chemistry**

I did a chemistry lab on polarimetry where we separated two enantiomers into individual salts and then used a polarimeter to determine the specific rotation and optical purity. What is the relationship of the proline salts to one another? i said that being enantiomers, they ...
*March 31, 2008*

**HUM**

What makes up the Hindu religion?
*March 31, 2008*

**othello paper**

I was wondering if someone could proof read the begining of my paper and give me feedback...thanks! In an attempt to warn females against falling under the control of a patriarchal society, progressive feminist Adrienne Rich defines patriarchy as “the power of the fathers...
*March 5, 2008*

**CALCULUS-URGENT- no one will respond!!!**

find the radius and interval of convergence for the series the series from n=1 to infinity of ((-1)^(n+1)*x^n)/n! I did the ratio test so I had the Lim as n approaches infinity of -x/(n+1), but this is 0, giving no radius, so I think I did something wrong...
*March 5, 2008*

**english- othello and adrienne rich essay**

In an attempt to warn females against falling under the consequences of a patriarchal society, progressive feminist Adrienne Rich defines patriarchy as, “the power of the fathers: a familial-social, ideological, political system in which men- by force, direct pressure, or...
*March 4, 2008*

**calculus**

What is an upper bound on the absolute value of the error: |sum from n=1 to infinity of ((-1)^(n+1))/(n*5^n)) -.1826666...| ?????
*February 29, 2008*

**calculus**

test the series for convergence or divergence using the alternating series test the sum from n=1 to infinity of (-1)^n/(3n+1) I said it converges, is this true?
*February 28, 2008*

**calculus**

test the series for convergence or divergence. the sum from n=1 to infinity of ((-1)^n*e^n)/(n^3) I said it converges because the derivative of (1/n^3) is decreasing
*February 28, 2008*

**calculus**

what is an upper bound on the absolute value of the error? the abs value of (the sum from n=1 to infinity of ((-1)^(n+1))/(n*5^n) where it is -.1826666....)
*February 28, 2008*

**english-othello**

It is quoted in Augustine's confessions, "the letter killeth, but the spirit giveth life." if this is so, then I believe Ambrose is telling Augustine the the letter, or the law, or exact words in the bible aren't meant to be taken literally, but figuratively ...
*February 27, 2008*

**english-othello**

It is quoted in Augustine's confessions, "the letter killeth, but the spirit giveth life." if this is so, then I believe Ambrose is telling Augustine the the letter, or the law, or exact words in the bible aren't meant to be taken literally, but figuratively ...
*February 27, 2008*

**english-othello**

I have to compare Iago in othello to Ambrose's message in St. Augustine's Confessions. Ambrose's message is to not take the Bible literally, but figuratively so that he can understand the deeper meaning. I must say how Iago's lesson is the opposite of what ...
*February 27, 2008*

**Improving Nonverbal Communication**

Which nonverbal cues can potentially convey a misunderstanding? An understanding?
*February 24, 2008*

**English**

I am trying to find a connection between Invisible man by Ralph Ellison and got tell it on the mountain by James Baldwin. The only connection I can find is that both characters are somehow betraying their race. However, in invisible man I can find that white people betray the ...
*February 12, 2008*

**American History**

actually, i don't really get what's the question asking. Can you please explain?
*February 10, 2008*

**American History**

How did U.S. foreign policy at the turn from the 19th to 20th century affect actions taken by the United States towards China?
*February 10, 2008*

**Gurublue( poetry)**

Guru Blue, These are two wonderful websites, thank you. However, I need a website that has audio to show me the stressed and unstressed words.
*February 9, 2008*

**Poetry**

I am learning about poetry (meter, verse, and foot). I need a website with audio that can allow me to hear the pronunciations of the syllables if stressed or unstressed. Please help me thank you.
*February 9, 2008*

**bio**

What does a skeltal muscle fiber look like? I looked in google, but it shows images of skeltal muscle.
*February 5, 2008*

**chemistry**

when iron rusts in air, iron(III) oxide is produced. how many moles react with 2.4 iron in the rusting reaction? 4Fe(s) + 3O2(g) => 2Fe2O3(s)
*January 31, 2008*

**Biology**

For each of the four major classes of organic compounds, identify the subunits. Describe the general process by which all of these subunits are joined together to form larger molecules.
*January 28, 2008*

**Science/Biology**

A woman once had a beautiful rubber tree, but when her sister saw her watering it, she laughed and asked why she was watering an artificial plant. So she stopped watering the plant, and in a few months it died. Explain, using at least five characteristics of living things, how...
*January 22, 2008*

**Science**

What is the chemical formula for rust, salt and air?
*January 20, 2008*

**MATH**

i really need help on this question!! I need to solve it using a system of two equations, the question says that an automobile radiator contains 16L of antifreeze and water. this mixture is 30%antifreeze. how much of this mixture should be drained and replaced with pure ...
*January 6, 2008*

**Statistics- PEASE help!**

Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music Physical Education Science Social Studies Features Contribute Download Experts Forum Job Openings Homework Tips Libraries.Jiskha Link to Us Reference School Supplies Search ...
*November 2, 2007*

**Statistics- quick! Is this right?**

I need to verify one of my answers quickly...the problem is: The mean annual salary for classroom teachers is $43,658. Assume a standard deviation of $8000. 1) Determine the sampling distribution of the sample mean for a sample of size 256. Interpret your answer in terms of ...
*November 1, 2007*

**Math**

This is for grade 11 math, under quadratic extrema and roots. Fred and Ginger have 24 m of fencing to enclose a garden at the back of their house. From the pictures you can see (shows a large rectangle for the house, with a smaller one attached on the bottom line, to the right...
*November 1, 2007*

**help me please**

i do not under stand with what
*October 15, 2007*

**Literature**

My question says: How is naturalism used in "The Red Badge of Courage" and come up with three quotes. First of all, can someone explain what naturalism really is?
*October 11, 2007*

**Spanish/History for Laura & Carry**

i know but i can't find the answer in those pages....
*October 11, 2007*

**Spanish/History for Laura & Carry**

wait... so how exactly did they mesh together???
*October 11, 2007*

**Physical Science**

25000
*October 10, 2007*

**Thesis Statement**

I wrote a thesis statement on "The Red Badge of Courage" and if someone could revise it, it would be pretty helpful. "Crane believes war is neither glorious nor honorable, but rather a fiery blaze able to only destroy, caused by groups unaware of the flames they...
*October 6, 2007*

**Jimmie**

By the way, this was for my classmate, Jimmie who is also doing the same assignment. But if someone else could help as well, that would be great.
*October 6, 2007*

**Jimmie**

I am nearly done with my Red Badge of Courage Analysis, but I would prefer one more thought from someone other than me. If you have read the work, could you tell me what you think Crane felt about soldiers as individuals? I think he thought they were ignorant people fighting ...
*October 6, 2007*

**Vocab**

What is a word for a cause of fire? I don't want examples but I would like a specific word for a causer of fire that could be used no matter what caused it. For example if someone died from murder, the causer of the death would be called a killer or a murderer. That's ...
*October 6, 2007*

**Science**

A girl has a body weight of 400n. What upthrust does she need to float?
*September 14, 2007*

**ASAP-before we were free**

Search for it on the Barnes and Noble website... It has links to readers guides and other stuff... i was actually looking for the same thing and your question came up on google. Hope this helps!
*September 5, 2007*

**chemistry**

I have to convert 7.2m^3 to L and keep getting the wrong answer. I did 7.2m^3*(1cm^3/91*10^-2)m^3) which gave me 720cm*(1L/1000cm^3)) this gave me 7.2*10^-1
*August 28, 2007*

**BUSINESS COMMUNICATION**

I HAVE 5 COMMITTEE MEMBERS I HAVE TO PERSUADE WITH DIFFERENT PERSONALITIES. THEY HAVE TO AGREE ON MY SERVICE. I HAVE TO INCREASE EFFICIENCY OF A BUSINESS OPERATIONS AND KEEP MY CURRENT EMPLOYEES HAPPY. Please note that we don't do students' homework for them. Our ...
*July 26, 2007*

**BUSINESS COMMUNICATION**

HOW CAN I INCREASE EFFICIENCY OF A BUSINESS OPERATIONS AND KEEP CURRENT EMPLOYEES HAPPY. Respect your employees. Use their ideas in your business plan. Pay them top wages and provide superior benefits. Since this is not my area of expertise, I searched Google under the key ...
*July 26, 2007*

**Precalculus**

Find the sum of 20 (summation notation symbol)k=1 then (3k-5) If you mean the sum of the first 20 terms, beginning with k=1, of ak = 3k - 5, that would be -20 x 5 = -100 PLUS the sum of the first 20 terms of ak = 3k The latter is 3 times the sum of 1+2+3+...20 , or 3*(20)(21)/...
*June 16, 2007*

**Precalculus**

Find d of an arithmetic sequence if a(subscript 4)=14 and a (subscript 11)=35 I assume d is the difference between successive terms, since you have said this is an 'arithmetic' sequence. Increasing the subscript by 5 increases the value of the term by 35. That is an ...
*June 16, 2007*

**Precalculus**

Find the sum of the first 50 terms of the sequence 2,4,6,8........ That is twice the sum of 1+2+3+...+50 For 1+2+...+N, the sum is N(N+1)/2 The sum is therefore 2*[50*51)/2) = 2550
*June 16, 2007*

**Precalculus**

Find a(subscript 6) of an arithmetic sequ3nce if a(subscript 4)=5 and a(subscript 9)=20. The value of an increases 15/5 = 3 per term. Therefore a4 = 5 a5 = 8 a6 = 11 a7 = 14 a8 = 17 19 = 20 The last term in my previous post should have been labeled a9, not 19.
*June 16, 2007*

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