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March 2, 2015

March 2, 2015

Total # Posts: 680

**Math (prealgebra)**

thank you damon
*September 27, 2008*

**Math (prealgebra)**

the cost of apen is 3 times the cost of a pencil. the cost of 4 pencils and 3 pens is $9.75. what is the cost of a pencil? can't find a formula for this problem. help is appreciated.
*September 27, 2008*

**Math**

ONe of the equal sides of an isosceles triangle is 3m less than twice its base. the perimeter is 44m. find the lengths of the sides. i need help with getting the forumula for this problem thanks
*September 27, 2008*

**Math**

Evaluate to the nearest tenth. 6 sqrt 10 subtract 9 sqrt 80 divided by sqrt 8 So, for #1, I got 10. Is it correct? And #2, I got 3.2 Is it correct? Thanks in advance for the replys,
*September 17, 2008*

**Math**

Thanks for the replys.
*September 17, 2008*

**Math**

Evaluate: Give answers as fractions or integers. 1. (3^-2)^-1 2. -6^-2 For #1, I got positive 9. Is that correct? For #2, I got 1/-36. Is that correct?
*September 17, 2008*

**algebra**

Radical expressions are similar to adding polynomial expressions because you have a multiple of something to combine. For instance, 3*x really means you have 3 x's to add up x + x + x = 3*x same for 2*x. Therefore there is a total of 5 x's to add up or simply write 5*x...
*September 17, 2008*

**biology**

I would guess most organic molecules with a carbon backbone, dissolved CO2, as well as others.
*September 16, 2008*

**algebra**

The equation you posted is not possible to have a whole number. Either you posted it wrong or there is a different way of solving it.
*September 15, 2008*

**Math**

Thank you soo much for the help.
*September 15, 2008*

**Math**

The Andromeda Constellation is the furthest object we can see with the unaided eye. It is about 22,000,000,000,000,000 km from Earth. Light travels in space at a speed of about 300,000 km/s. Calculate how many years light takes to reach Earth from the Andromeda Constellation? ...
*September 15, 2008*

**ecology**

"If animals also eat the organism that has been sprayed, they take in the poison. The animals may not die, but the poison builds up in the organs of its body. Because larger animals eat more food that may be affected with the poison, more poison is natuarally concentrated...
*September 14, 2008*

**Math**

The period of revolution of a planet around the sun is the time it takes for the planet to complete one orbit of the sun. The period, P years, is give by Kepler's third law P^2=D^3, where D is the average distance from the sun in astronomical units (AU). One AU is the ...
*September 13, 2008*

**12 math**

solve for n a. c(n,2)=28 b. p(n,5)=20p(n,3)
*August 29, 2008*

**12 math**

for the expansion of (k+t)power22, state a. the number of terms b. the degree of each term c. the first four terms in the expansion, without coeffiecients
*August 29, 2008*

**grade 12 math**

find the first 5 terms in the expansion of (r-2s) power of 8
*August 29, 2008*

**math**

in how many ways can a committe of 3 be chosen from an organization with 12 memebers?
*August 28, 2008*

**math**

a pharmacist uses 5 seperate weights: 1g, 2g,4g,8g and 16g. If the pharmacist can combine these weights to create a new weight, how many different weights are possible?
*August 28, 2008*

**Alg. 2**

uh oh..the symbols didn't show..the iy is suppose to be the "greater than or equal to" symbol and the iU is suppose to be "less than or equal to symbol" also there is multiple choice for the answer.. its either a) no maximum exists b) (10,0) c) (8,0) d...
*July 7, 2008*

**Alg. 2**

Maximize the objective function M=6x+3y under the constraints {x ¡Ý 0 y ¡Ü 5 y ¡Ü -x + 10 y ¡Ý.5x - 4}
*July 7, 2008*

**Math**

Is there any one who knows if I am right? Do not solve, show possibilities of Descartes's rule of signs for roots. 4x^3-9x^2+6x+4=0 f(x)=4x^3-9x^2+6x=4 - + + one change =4(-x)^3-9(-x)^2+6(-x)+4 - + - + three changes Positive Negative Imaginary 2 1 0 1 2 0 3 possible roots
*April 4, 2008*

**Algebra HELP!**

Do not solve, show possibilities of Descartes's rule of signs for roots. 4x^3-9x^2+6x+4=0 f(x)=4x^3-9x^2+6x=4 - + + one change =4(-x)^3-9(-x)^2+6(-x)+4 - + - + three changes Positive Negative Imaginary 2 1 0 1 2 0 3 possible roots
*April 3, 2008*

**Algebra**

Do not solve, show possibilities of Descartes's rule of signs for roots. 4x^3-9x^2+6x+4=0 f(x)=4x^3-9x^2+6x=4 - + + one change =4(-x)^3-9(-x)^2+6(-x)+4 - + - + three changes Positive Negative Imaginary 2 1 0 1 2 0 3 possible roots
*April 3, 2008*

**Math**

A recipe calls for 2/3 cups of green peppers. What would it be if you wanted to make half of the recipe?
*March 31, 2008*

**Algebra**

give indicated composite for pair of functions (g o f)(x):f(x)=x-3/6, g(x)=6x+3 g(f(x)) g(x-3/6) =6*x-3+3/6 would my answer be: (g o f)(x)=x I am not sure if I answered the problem completely.
*March 27, 2008*

**algebra**

they made perfect pear
*March 11, 2008*

**Chemistry**

I cannot find information that gives me a clear answer whether NaBr is an electrolyte or non electrolyte. I have found some information that K2SO4 is an electrolyte, but now I am doubting that. All of my others I have been able to find solid information on, but these two have ...
*January 31, 2008*

**world history**

what was capotal of the Ausro-Hungarian province of Bosnia? Vienna
*January 28, 2008*

**world history**

what was the name of the concept which spread this desire for increased militarism and was characterized by the phrade "survival of the fittest"-- evolution being applied to society? Social Darwinism
*January 28, 2008*

**world history**

what were the two "lost provinces" located on the border of France and Germany that the Germans had gained possession of as a result of their 1871 victory in the Franco-Prussian War? Alsace and Lorraine
*January 28, 2008*

**world history**

what ineffective world court was set up by world leaders who served as delegates to the First Universal Peace Conference which was held in the Netherlands in 1899? Hague Tribunal
*January 28, 2008*

**World History**

what is the term for the opposition to all war that was promoted by organizations such as the Women's International League for Peace and Freedom? pacifism
*January 28, 2008*

**World History**

who was the former chancellor of Germany that had correctly predicted not only the coming of the first World War, but also that it would begin in Eastern Europe? Archduke Francis Ferdinand
*January 28, 2008*

**english**

What is the difference between the movie and book for flower for Algernon?
*November 13, 2007*

**pre-calc**

is x=15 degrees a solution of radical 3/3 cos2x+sin2x=0
*November 13, 2007*

**lit**

I have to write a modest proposal similar to Jonathan Swifts. Please tell me if I am on the right tack (if there is changes to be made show me where) It is devastating and heart wrenching to see how the world is slowly transforming into a heat machine and a toilette. The ...
*November 12, 2007*

**History**

How did human history in North America during 12,000BC - 1000BC differ from the events of Asia, Eurasia, and Europe?
*October 19, 2007*

**gov**

Does anyone know a website that has an in-depth analysis on the movie the patriot?
*October 15, 2007*

**ss**

Does anyone know a website that has a good analysis on The Patriot(movie)?
*October 14, 2007*

**science**

What are some problems with the lost or lack of biodiversity?
*October 14, 2007*

**Language**

answer this analogy:born:died::ugly:b_____ Born and died are antonyms (opposites). What is an antonym for ugly?
*August 16, 2007*

**math**

if x =3 and y = -4, find the value of 8x -10y I will be happy to critique your work/ or thinking on this.
*June 18, 2007*

**algebra help please**

The area of a rectangle of length x is given by 3x^2+5x find the width of the rectangle a=l*w =x*(3x+5) I stoped here I am not sure if I am correct i was taken the 3x+5 as the width and x as the length but i am not sure if the 3x+5 should be the area and divid by x the length ...
*April 24, 2007*

**economics**

I am writing a paper on how the monetary and fiscal policies have affected the auto industry i can not seem to find any web site to help me with this can any one give any suggestions Does available credit affect the auto industry? Does disposable income affect the industry? ...
*April 23, 2007*

**ALGEBRA**

In a town election, the winning candidate had 220 more votes than the loser. If 810 votes were cast in all, how many votes did each candidate receive? would the formula i need to solve this problem x+y+220=810 y=x-220 The equations are not correct. Close, but you made a small ...
*April 18, 2007*

**equation**

if the gas prices was say was .90 a gallon in 1950 and the prices now are 3.00 a gallon how would you write an equation to show the increase I am needing to graph this so i need a slope i think can anyone explain this please There is no need to plot a graph for the slope. You ...
*April 17, 2007*

**english**

Can somone please give me an example of slapstick or a website? Thank you for using the Jiskha Homework Help Forum. First of all, a definition: 1. http://en.wikipedia.org/wiki/Slapstick Now slapstick comedy in the 1920's: 2. http://slapstick.lbox.org/
*March 25, 2007*

**english**

"Talk is cheap until you hire a lawyer." Can someone please explain to me how this is an example of punch line? That is called "satire". Anyone can talk and talk all they want to, no cost! just energy and air is all that is required. <G> BUT, when a ...
*March 25, 2007*

**English**

Does anyone know any websites that have humorous devices such as, absurdity, caricature, high humor, etc (with examples)? Here are two places I like. http://www.cartoonbank.com/prints_currentissue.asp?mscssid=W9RR21STX5LT8NEGE0T2BGN2NWLGBTE2&sitetype=1 http://www.theonion.com/...
*March 19, 2007*

**Science**

How come there is a lunar and solar eclipse only twice a year, and not once a month?
*February 21, 2007*

**Science**

Thank you! Why is there a lunar eclipse only twice a year and not once a month? Thanks for the help. On the night of May 15/16 we will be able to see a total lunar eclipse. Lunar eclipses can only happen when the Moon is full and it passes behind the Earth and into its' ...
*February 19, 2007*

**Math**

Hello. Well, I was wondering how you are supposed to memorize 1 times 1 (easy) through 12 times 12 (hard)! How do you do it?? Repetition is one way.
*February 18, 2007*

**would someone please check this math**

1 four buttons have diameters of 5/8 , 3/4, 9/16, and 7/8 which buttons is smallest? answer 9/16 2. I spent 1/3 of my time doing math homework and 2/7 preparing for a history test . what fraction of study time remain? answer: 13/21 3. least common multiple of 3, 6, 9 answer 18...
*February 8, 2007*

**math check**

1 four buttons have diameters of 5/8 , 3/4, 9/16, and 7/8 which buttons is smallest? answer 9/16 2. I spent 1/3 of my time doing math homework and 2/7 preparing for a history test . what fraction of study time remain? answer: 13/21 3. least common multiple of 3, 6, 9 answer 18...
*February 8, 2007*

**math check please**

1 four buttons have diameters of 5/8 , 3/4, 9/16, and 7/8 which buttons is smallest? answer 9/16 2. I spent 1/3 of my time doing math homework and 2/7 preparing for a history test . what fraction of study time remain? answer: 13/21 3. least common multiple of 3, 6, 9 answer 18...
*February 8, 2007*

**chemistry**

Is C7h16 + O2 = 7 CO2 + 8 H2O a balance chemical equation? C balances. H balances (you should capitalize it). O is not balanced. You need a coefficient of 11 for O2. Check that.
*February 7, 2007*

**chemistry**

Can someone define the mole concept? The mole is a number. A dozen eggs is 12 eggs. A gross of anything, pencils for example, is 144. A ream, of paper for example, is 500 sheets. A mole of anything is 6.02 x 10^23 of those anythings.
*February 7, 2007*

**chemistry**

105 grams of MgCl2 contains how many mols of MGCl2? mols = grams/molar mass Better get your calculator.
*February 7, 2007*

**chemistry**

how many molecules are present in 4.25 mol if CCl4? 1 mol = 6.022 x 10^23 molecules Therefore, how many molecules are in 4 moles? I don't have a calculator to figure out that problem, but I do understand it. i mn
*February 7, 2007*

**math help**

could some one please explain to me reciprocal how to find the reciprocal my math home work says find the reciprocal of (-1/8)(13/2)(4) reciprocal you change over so is the -1/8 -8/1 or would it be 8/1 13/2 would be 2/13 4 would be 4/1 then 1/4 then i would multiply all ...
*February 2, 2007*

**English**

How does walt whitman change the way people experience poetry? http://en.wikipedia.org/wiki/Walt_Whitman He got rid of the meter, so it cant be sung. It is freestyle, conversational. Read Leaves of Grass
*January 28, 2007*

**English**

Can someone give me websites that have problems that public schools are facing? http://www.google.com/search?hl=en&q=problems+public+schools =)
*January 23, 2007*

**Chemistry**

Hi, Does anybody know a list of websites that have a list of short labs (3-5 min) on chemistry? I hope these are of some help. http://www.chemistrycoach.com/Links%20to%20chemistry_experiments.htm http://chemistry.about.com/od/demonstrationsexperiments/...
*January 20, 2007*

**English**

Hi, I wanted to know if anybody knows or knows a website that can explain each line in the poem “The Tide Rises and the Tide Falls” by Longfellow This site has comments about the poem, but I didn't find a site that explains it line by line. http://oldpoetry.com/...
*January 16, 2007*

**English**

I wanted to know if I had the right idea. In the poem “To My Dear and Loving Husband" by Anne Bradstreet the poem is emotional because she is expressing the love she has for her husband, and it is also physical because the metaphors she uses helps have an image. If ...
*January 13, 2007*

**English**

Hi, I am analyzing poetry in my English class, and I have a? on Henry Wadsworth Longfellow’s poem, A Psalm of life. I have to say if it is emotional or physical. I think this poem is emotional, but I do not know how to explain that it is. http://oldpoetry.com/opoem/4413-...
*January 13, 2007*

**math check please**

1. Find the least common multiple of 4 and 11. Answer: 44 2 Divide. 91.41 divid 6 answer 3.235 3. If a gallon of water weighs 8.34 lbs. how much does 3.75 gal weigh? 8.34 x 3.75= 31.2750 4. find the circumference use 3.14 for pi diameter is 12 ft 3.14 x 12ft = 37.68 ft 5. ...
*January 6, 2007*

**math**

please check and see if my answers are correct if not let me know so i can redo these and find where i messed up 1. divid by moving the decimal point 27.3 dived 10^5 my answer .000273 2.Jon spent 1/3 of his study time doing math homework and 2/7 preparing for a history exam. ...
*January 5, 2007*

**math**

Can somebody please help me with this problem? This is the index-„³ 5 6^-5 The radical sign did not show, but the problem is: 5 is the index (outside the radical sign and then 6 is squared to the -5th power (inside the radical sign is under the radical sign) when ...
*January 1, 2007*

**business**

What is foreign investment? can some explain international investment theory to me? I am a 10 th grader I have to do a report and explain foreign investment and international investment theory in a paper where do I start? Please help Foreign investment is simply investing in ...
*December 11, 2006*

**environmental science**

What are the causes of wildlife extinction? I know that humans are the main reason but i am looking on more in the deforestation as a main cause but not sure how to explain it.needing to be able to explain this to a ten year old fifth grader. any suggestions. he has to have a ...
*November 13, 2006*

**Chemistry**

Which group of elements is characterized by an s2p3 configuration? What is the electron configuration of group 15? http://www.chemsoc.org/visElements/pages/data/intro_groupv_data.html thanks
*November 12, 2006*

**environmental science**

I have a project due in a three weeks and I am trying to get a head start on this.Here is the project and My Ideas I am needing where I can get some facts and figures to prove my point but i got lost on a few Ideas if anyone can help with a few ideas or sites I would ...
*November 6, 2006*

**ENGLIGH**

WHICH WORD HAS THE ROOT WHICH MEANS PLACE, SET? Position: http://www.etymonline.com/index.php?term=position =) My guess is plant The root is actually -pos- as in position impose posit depose deposit proposition propose disposable dispose disposition etc. You can also go to www...
*November 1, 2006*

**enviromental science**

need an example to understand how topographical factors intensify air pollution and how they can help pollution? Since this is not my area of expertise, I searched Google under the key words "topography 'air pollution'" to get these possible sources: (Broken ...
*October 30, 2006*

**science**

can some explain to me how birth, death and migration rates affect the population? I have read but really do not understand it? the factors that can affect these rates i am assuming is urbanization cost of raising and educating children educational and employment opportunities...
*October 16, 2006*

**Computers**

Is the term "You run a marathom differently than you run a track event" not an English example of polymorphism?
*September 7, 2006*

**Question**

I need to know who makes and how the desicion to stay on a Indian reservation if I know who I could search for how they decide. stumped please help. It's a free country. No native HAS to stay on the reservation. Initially the natives were rounded up and forced to stay ...
*August 15, 2006*

**Punctuating Sentences check please**

The rainbow stretched across the sky from the ice cream truck to the house down the lane. Between the sixth and seventh floors of the building in the stairwell over in the corner. Punctuating Sentences I am not sure if I did them correctily would someone please check for me ...
*August 8, 2006*

**brain teaser help**

I can put a beaker in the middle of the room and crawl into it. This depends upon the meaning of "it." If you are a linear thinker, you may(presumptively) conclude that "it" is the beaker. A global thinker will seek other options; the only remaining option ...
*August 20, 2005*

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