Friday

July 3, 2015

July 3, 2015

Total # Posts: 2,229

**Calculus**

isn't there a way you do it with the derivatives?
*November 13, 2007*

**Calculus**

So you just plug -1 into the equation to get the limit?
*November 13, 2007*

**Calculus**

find the limit. use L'Hopital's Rule if necessary. lim (x^2+3x+2)/(x^2+1) x -> -1
*November 13, 2007*

**Chemistry**

CaCl2(s) Ca2+(aq) + 2 Cl-(aq) H = -81.5 kJ A 14.0 g sample of CaCl2 is dissolved in 130. g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat ...
*November 10, 2007*

**unscramble**

afsedrniru
*November 8, 2007*

**English- In Cold Blood**

Does In Cold Blood by Truman Capote have a protagonist? is it Herb Clutter, Dewey, or Perry? If so, does that make it a creative work? If not, explain how it is simply eloquent journalism.
*November 7, 2007*

**statistics**

fadsa
*November 5, 2007*

**Physics**

Two metal beams are joined together by four rivets, as the drawing indicates. Each rivet has a radius of 5.0 10-3 m and is to be exposed to a shearing stress of no more than 4.6 108 Pa. What is the maximum tension T that can be applied to each beam, assuming that each rivet ...
*November 3, 2007*

**Physics**

A water bed has dimensions of 1.83 m 2.17 m 0.247 m. The floor of the bedroom will tolerate an additional weight of no more than 6660 N. Find the weight of the water in the bed and determine whether it should be purchased.
*November 1, 2007*

**Language**

What is a proper noun
*October 25, 2007*

**chemisrty**

what is sulfur and what are the uses please make it simple as possible:D
*October 23, 2007*

**Chemistry**

3. What experimental problems would confront you if you attempted to determine the concentration of the metal ions in solutions of each of the following reagents? a. Cr +3 which has a maximum absorbance at 407 nm with absorbtivity of 15 M -1 cm -1 and another at 574 nm with ...
*October 14, 2007*

**physics**

10300.5
*October 11, 2007*

**Help with introduction**

Sorry, about the other post.. I didn't know I wasn't going to be able to put more information in the question. Well the thing is I am doing the VFW essay for my history class. We are suppose to write about "My role in honoring America's veterans" but I&#...
*October 6, 2007*

**math**

how would you regroup 4 tens to find the difference between 341 and 228
*September 26, 2007*

**finance**

Should We Purchase That New Copier? Campus Print Shop is thinking of purchasing a new, modern copier that automatically collates pages. The machine would cost $22,000 cash. A service contract on the machine, considered a must because of its complexity, would be an additional $...
*September 25, 2007*

**finance**

Imagine a country that is operating a fixed exchange rate relative to the dollar. The currency is trading at a forward discount of 50 percent, and rumors have been circulating that the government may pursue a large devaluation. Do you expect the devaluation will be equal to 50...
*September 24, 2007*

**English**

What was the main problem in the Crucible?
*September 19, 2007*

**math, economics, game theory**

If C = 500 + 3/4[GDP- 100], I = 300, G = 400, Xn =- 10 and full employment GDP is 210 less than current GDP, the proper action would be to increase taxes by?
*September 10, 2007*

**Calculus: Derivatives**

I'm having trouble understanding what derivatives in calculus (instantaneous speed) is. Can someone please explain it to me, or provide some easy links to learn from? Thanks!
*September 9, 2007*

**elementary math**

what does it mean on the instructions if it says "Use a ten-frame and O to make a ten. Find the sum."
*September 6, 2007*

**calculus**

1. how do u simplify (1/a+h+1 - 1/a+1)/h 2.what's the difference quotient? is it like what u start with e.g. f(x)=1/x+1 or is it the big equation ur suppose to plug it into eg. f(a+h)-f(a)/h or is it what u plug into the f(x)=1/x+1 to get for e.g. f(a)/a+1?
*September 6, 2007*

**science**

when temperature is off, we call it end point - what is it?
*September 6, 2007*

**Math(algebra)**

1.) Consider the function F defined by the eqation: f(x)=3x+2 a.)find each of the values F(1),F(2)and F(3). I need help on figuring out the steps on this killer
*September 2, 2007*

**Math(Geometry)**

Haha dude do you have the book with the zebras and ferris wheel on it? Cause I got assighned the exact same problems. heres all I got. 7. OTTFFSSENT 8. JFMAMJJ 9. need help with 10. 2,4,8,16,32,64,128 11. need help with 12. 1, 1/2, 1/3, 1/4, 1/5, 1/6 13. George, John, Thomas, ...
*August 22, 2007*

**algebra**

The sqrt of 3(8^sqrt of 7 - 4^sqrt of 3)
*July 8, 2007*

**Computer hardware**

Can Windows XP Professional operate as a controller in a network domain
*June 24, 2007*

**MacroEconomics**

I have the first 4 parts but fall short on the last 2 answers: For each of the following situations, indicate the direction of the shift in the supply curve or the demand curve for dollars, the factor causing the change, and the resulting movement of the equilibrium exchange ...
*June 19, 2007*

**Economics**

Choose an argument in favor of protectionism. Are there any weaknesses in this argument? Be specific. do some research, then take a shot. what are some arguments in favor of protectionism? I have got the first 4 I think but can't figure out the last 2 For each of the ...
*June 17, 2007*

**Algebra**

Can someone check my work please? Write using positive exponents, and simplify if possible. 1. (–3x)^–2 answer: 1/9x^2 2. Multiply. Write the answer in scientific notation.
*June 10, 2007*

**Algebra**

Find the GCF of each product. (6y^2-3y)(y+7) I think it is 3y. I'm not sure maybe there is no GCF in this problem. Any help would be appreciated. yea your right its 3y
*June 5, 2007*

**Algebra**

Find the GCF of each product. (6y^2-3y)(y+7) I think it is 3y. I'm not sure maybe there is no GCF in this problem. Any help would be appreciated.
*June 5, 2007*

**Political Economy**

I know this is open ended but what do Karl Marx, Adam Smith, Shumpeter, and Keynes have in common in terms of thinking. I am studying them right now and my prof. says that they are the grandmasters of political economy. I understand their role with capitalism and how after ...
*June 5, 2007*

**math**

NetBusters has a $30 sign-up fee plus $1.25 per video BlockFlix has a $10 sign-up fee plus $2.25 per video How do I set up a function rule equation I assume that you want to find out how many videos you have to buy before they become equal. Consider this: There is a $20 ...
*May 29, 2007*

**pre cal**

find the standard form of the equation of a parabola with the vertex (0,0) and the directrix y=6 find the standard form of the equation of the ellipse with center (0,0) and foci at (+- 4square root 3, 0) and verticies (+-8,0)
*May 25, 2007*

**Science**

Spores sometimes travel in air as dust particles true or false
*May 18, 2007*

**chemistry**

MF16014: What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M methylamine wiht 25.00 mL of 0.10 M methylammonium chloride? Assume that volumes are additive and that Kb = 3.70 x 10-4 for CH3NH2. how do i go about this question? If you know how to use the ...
*May 1, 2007*

**chemistry**

MF16032: What is the percent dissociation of acetic acid if the solution has pH = 4.74 and pKa = 4.74? is it 50% yes, 50%. Do you know how to prove that? Did you calculate it or did you make an educated guess?
*May 1, 2007*

**chemistry**

i need help on this i dont get it MDJ OB 018: Alice looked in the looking glass and saw her image there. She invited her image to some out but the visit was short since her image found that she was starving to death and that all the food tasted bad. Why was this? Victorian ...
*May 1, 2007*

**english**

arbor day words to unscramble herlets degeslin Please note that we don't do students' homework for them. Our tutors try to give you the information to help you complete your assignment on your own. Try these: http://www.ssynth.co.uk/~gay/anagram.html http://wordsmith....
*April 30, 2007*

**Chem 2**

what is the solubility of silver carbonate in water in 25 degrees celcius if Ksp=8.4X10-12? i dont know what to do Write the equation. Ag2CO3(s) ==> 2Ag^+ + CO3^= Ksp = (Ag^+2)(CO3^=) Let x = solubility of Ag2CO3. At equilibrium,(Ag^+) = 2x; (CO3^=) = x. Plug those into the...
*April 28, 2007*

**SPANISH**

how did jorge luis borges change life today Thank you for using the Jiskha Homework Help forum. Please see the Spanish by Jackie for answers: http://www.jiskha.com/post.cgi
*April 22, 2007*

**CHemistry**

The XeF5+ is not trigonal biyramid as the is a lone pair of electrons, VSEPR theory shows that the molecule has the structure AB5L which is a square based pyramid
*April 22, 2007*

**Mathematics/pre-algerbra**

how do I find a value of x that will make each proportion true?? 12 = x ___ ___ 16 20 and 8 = 14 __ ___ 12 x See previous post. i still dont get it sorry Cross multiply to find x. Here's the first one; perhaps you can try the second one on your own. 12/16 = x/20 Take 12 * ...
*April 9, 2007*

**Algebra, math**

how do I find a value of x that will make each proportion true?? 12 = x ___ ___ 16 20 and 8 = 14 __ ___ 12 x Cross multiply to find x. Here's the first one; perhaps you can try the second one on your own. 12/16 = x/20 16x = 240 Divide both sides by 16 to get x by itself ...
*April 9, 2007*

****WORLD GEOGRAPHY 30****

Which of the following statements is not true? a) rural settlement is north america is primarily dispersed. b) agglomerated rural settlement is most commong in the world. c) the agglomerated pattern exists in lands colonized by europeans. d) an agglomerated village can be ...
*April 7, 2007*

**Medea Trial**

My teacher assigned my class to play out a trial of Medea vs. Jason. I was assigned to the Medea side and I am a lawyer who will try and prove it was Jason's fault that caused all the trouble (killing of Medea's two sons and, princess, and king.) My group told me to ...
*April 7, 2007*

**algebra1**

could some possibliy go through the steps in sovling this problem for me? x/7+5=9 subtract five from each side. Then, multiply both sides by seven
*March 23, 2007*

**Economics**

How do you proceed in calculating exchange rates between countries and what data do you need? Exchange rates are simply market prices of foreign currencies. The price can fluxuate on a daily basis. So, are you asking how you would build a model that predicts an exchange rate...
*March 22, 2007*

**Social**

What was the bonus army, why were they protesting and what happened to them? i cant find this anywhere soooo plez helppppp thanks http://www.google.com/search?q=%22bonus+army%22&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA =)
*March 22, 2007*

**Chemistry (3rd time I've posted this)**

Can someone check my answers? I've posted this a couple times and no one has responded. Is no one responding because they're all right or what? 1.) If you were involved in an acid rain monitoring project with several other samplers, why would it be important that all ...
*March 21, 2007*

**Chemistry check**

Can someone check my answers? Thanks. 1.) If you were involved in an acid rain monitoring project with several other samplers, why would it be important that all of you collect your samples on the same day and do the alkalinity tests within 24 hours? Acid rain on another day ...
*March 21, 2007*

**Chemistry**

Can someone check my answers? Thanks. 1.) If you were involved in an acid rain monitoring project with several other samplers, why would it be important that all of you collect your samples on the same day and do the alkalinity tests within 24 hours? Acid rain on another day ...
*March 21, 2007*

**global studies**

The rivers of Quebec Province are used to make? http://www.britannica.com/ebi/article-207027 =)
*March 19, 2007*

**CHEMISTRY**

ok i have no idea what a 7 letter word for : force resulting from the collisions of gas particles is... so if u have any ideas to what it could be would be great. thanks kinetic? idk pressure is a force.... pressure is a eight letter word I think someone miscounted the letters...
*March 18, 2007*

**Chemistry**

How do I do this problem? 1. A student did an alkalinity determination correctly, except that the sample titrated had a volume of 90.0 mL. Volume A was found to be 4.50 mL and Volume B was 7.00 mL. a) Calculate the alkalinity value from these data and then calculate the ...
*March 13, 2007*

**pre-algebra**

write an inequality for the sentence. The total t is greater than five. Well your answer is going to be T and the sign for greater than is simply >. So the answer would be T > 5 ok again my name is above. i was just wondering what pre-algebra was? i mean i take the ...
*March 9, 2007*

**pre-algebra**

which product equals 3t-12? What options do you have to choose from? Without that information, we cannot help you. Give us the options with your reasoning for your choice, and we will be glad to give you feedback. I hope this helps. Thanks for asking.
*March 7, 2007*

**spanish**

What is the difference between a refugee and an immigrant. Also, What is the solution the economic problem of hispanics? Thanks for any help that you may have. Thank you for using the Jiskha Homework Help Forum. When you want to know the definition of a word, always look in a ...
*March 4, 2007*

**math - loans**

if i have to pay back a loan of 10 million over the next 5 yrs. How much are my yearly payments if each subsequent payment is 15% less than the previous year? What is the interest rate? Zero? If there is zero interest rate on the remaining balance, and if the first payment ...
*March 2, 2007*

**stocks**

When IBM announces its intention to split its stock, let us say a split of 2:1, the news is interpreted as reducing the volatility of the DJ30, and it sometimes leads to an increase in the IBM share price, adjusted for the split. Explain the possible reasons for both effects, ...
*March 1, 2007*

**Capital Markets - Bonds**

You are buying right now a zero-coupon bond. It has exactly 8 years to maturity, and you expect the YTM to be 6% over the bond’s life. Even though you intended to hold it to maturity, you end up selling it after 3 years. By that time, the bond’s YTM has risen to 8% ...
*February 28, 2007*

**Capital Markets**

You work for an underwriter. The underwriter asks you to ¡§strip¡¨ a portfolio of treasury bond. The treasury bonds in question are all identical, they have 5 years to maturity, pay an annual coupon of 7.25% per year, payable annually, and they are ...
*February 28, 2007*

**Capital Markets**

anyone have knowledge of bonds, mutual funds, and stripping bonds. I have a few problems which i cant figure out but theyre kinda long Yes, I have owned each of those. Go ahead and ask your questions here. One at a time would be best.
*February 28, 2007*

**psych**

Who knows anything or has an opinion on enculturation? If so let me know. Check this site. http://en.wikipedia.org/wiki/Enculturation
*February 24, 2007*

**AP U.S. History 1920's immigration**

WOW
*February 21, 2007*

**Macroeconomics**

Manipulation of the Cobb Douglas Equation gives us expression for output per working age person: growth rate of (Y/N)=[1/(1-alpha)*growth rate of TFP]+[(alpha/(1-alpha))*growth rate of (K/Y)]+ [growth rate of (L/N)] N is the working age population K is capital stock L is labor...
*February 9, 2007*

**Macroeconomics**

Economists have found that a good approximation of value added production fucntion is given by Y=TFP*(K^alpha)*(L^-alpha) TFP is Total factor Productivity K is capital stock L is quantity of labor used alpha is a paramater around 1/3. How is value added defined? Why dont ...
*February 8, 2007*

**math check please**

What is 10 to the power of 4?
*February 7, 2007*

**Chemistry**

EQUILIBRIUM: Given the equation 2 PbS(s) + 3 O2(g) 2 PbO(s) + 2 SO2(g) What direction will the reaction proceed if additional SO2 was added to the system at equilibrium? Forward Reverse Nothing Happens Difficult to determine You really need to do this yourself. LeChatelier'...
*January 31, 2007*

**Chemistry**

EQUILIBRIUM: To prepare the standard solution, a very large concentration of ferric ion is added to a small initial concentration of thiocyanate ion. True or False It would help if we knew what you were doing. We are determining Chemical Equilibrium: Finding a Constant Kc... ...
*January 31, 2007*

**Chemistry**

Which statement about Kc is wrong? A. Kc is always a constant B. For some reactions, Kc increases with temperature increase C. For some reactions, Kc decreases with temperature decrease D. For some reactions, Kc changes when pressure is changed A is incorrect. Kc stays ...
*January 31, 2007*

**Chem-Temperature and Volume Relationships**

At 25 degrees C a balloon takes up a 2L volume what will the new volume be
*January 25, 2007*

**TWO DIMENSIONAL DESIGN**

bristol board
*January 22, 2007*

**math**

Billy Jeans' profit is given by the equation y=2.7-.0000015(x-2550)^2, where x represents the number of units manufactured and y represents the profit given in millions of dollars. What is the maximum possible profit? a) 2.55 billion dollars b) -7.1 million dollars c) 9.8 ...
*January 21, 2007*

**math (statistics**

John's z-score on a college entrace exam is 1.3. If the raw scores have a mean of 480 and a standard deviation of 70 points, what is his raw score? Use a z-score formula to find John's raw score. The formula: z = (x - mean)/sd -->sd = standard deviation Using what ...
*January 18, 2007*

**2 any1**

can you give examples for homonyms &3 for synonyms? Homophones/homonyms: http://www.earlham.edu/~peters/writing/homofone.htm Synonyms are just single words that mean the same as other single words. Think of some words and look them up here: http://vancouver-webpages.com/...
*January 17, 2007*

**language**

What is a simile? This site will give you a definiton and examples. http://www.tnellen.com/cybereng/lit_terms/simile.html would for native americans woul for be the prepositions and americans be the object. for is the preposition. Native Americans is the object of the ...
*January 16, 2007*

**chemistry**

what are the general reactants and products in a fermentation reaction? thanks http://www.crocodile-clips.com/absorb/AC4/sample/LR1507.html
*January 10, 2007*

**chemistry**

why do organic reactions occur more slowly than inorganic reactions (those that contain ionic bonds)? In inorganic reactions the ions merely need to get close enough to attract between + and - charges. Organic compounds are not ionic (some are polar); therefore, the atoms are ...
*January 10, 2007*

**math**

belinda if ur still here to help i would appreciate it so much but 5z-2 (5z-2 is under a radical sign) +7=10 anyone else who knows how to solve this with it coming out equal please help thanks again :) wow, I am SO incredibly stupid 3 times in a row! When you get to 5z=11, you...
*January 9, 2007*

**math**

i have another question as well.. square root of 3x=x-6..thanks i got an answer that doesnt work out os if u could jus help me out on these thx :) I would square both sides first so you have 3x = x^2 - 12x + 36. Then subtract 3 on both sides so you have x^2 - 15x + 36 = 0. ...
*January 9, 2007*

**math**

what is the square root of 5z-2, then it says plus 7=10 First, subtract 7 from each side so you now have: sqrt(5z-2)=3. Then square each side, so you now have: 5z-2=9. Then add 2 to each side so you have 5z=11. Then divide each side by 5 and the answer is z=11/2. thanks ...
*January 9, 2007*

**music**

for school im making a presentation saying whos sold what kind of music and how many albums. i was wondering has any one ever reached diamond (10 million albums sold) status and if so who? thanks Which two bands have sold the most albums? The Beatles - 160 million (including ...
*January 6, 2007*

**operations management/supply chain**

Suppose you are managing a service system in which customers arrive at a rate of two per minute according to a Poisson process. You are investing in a single machine that provides the service and does so with exponential service time. Your objective is that the average time a ...
*December 19, 2006*

**MATH -BRAIN TEASER- PLEASE HELP**

a step farther
*December 17, 2006*

**simplest form**

what is 10/12 in its simpliest form?
*December 11, 2006*

**Finance**

An item which may be converted to cash within one year or one operating cycle of the firm is classified as a
*December 11, 2006*

**history**

I need to find Sir John A. MacDonald birth certificate or job application http://www.jiskha.com/display.cgi?id=1163541475 what is the name for the combined houses of the missouri legislature http://www.google.com/search?q=missouri+legislature&ie=utf-8&oe=utf-8&rls=org.mozilla:...
*December 11, 2006*

**Not Sure**

What do a cat, checkerboard, basketball, calculator and open book have in common? Post this on the puzzle forum, link below.
*December 7, 2006*

**Math**

I travel and travel but there is no trail. I cut and cut but there is no blood. I chop and chop but there are no chips. ??
*November 28, 2006*

**math**

it takes a plane 40 min longer to fly from boston to los angeles at 525 mi/h than it does to return at 600 mi/h. how far apart are the cities? distance = rate*time B to LA = 525mi/hr*t La to B = 600mi/hr*t The distance is the same no matter which way we go, but we must ADD 40 ...
*November 28, 2006*

**What do you think?**

Take immigrant family for example... do you think that person’s language skill is more influenced by peers than by the family? any answers are appreciated. thank you! I think so. Peers are the ones you want to fit in with and be accepted by. Plus, if you want to ...
*November 22, 2006*

**acids and alkalis**

Your MOM
*November 4, 2006*

**acids and alkalis**

HI! CAN YOU TELL ME 3 ACIDS IN A HOUSE
*November 4, 2006*

**Organic Chem**

how do you synthesize 1-propanol from the starting material butyraldehyde?
*November 2, 2006*

**social studies**

what are two exceptions to the decision of a jury being final? appeal and pardon Who were marched to Babylon to work as slaves? Prisoners of war were the most common slaves in ancient times.
*October 31, 2006*

**Pigskin**

Google it! Morons...
*October 30, 2006*

**math**

|(x-3)/(x+5)|< 2 i've asked so many ppl, but they all give me different answers :( Well if the expression is less than two, and the abs function is positive, then the ratio is between 0 and 2. Lets look inside the abs function, it can be negative, because the abs will ...
*October 29, 2006*

**1861 England**

Did anything major occur around the 1860s in England? Other than inventions and England's take on the American Civil War. http://www.scopesys.com/year/ You'll have to change the year and then check month by month to find out. This includes things that happened in the ...
*October 23, 2006*