Wednesday

May 25, 2016
Total # Posts: 902

**12th grade**

IN THE BOOK LYDDIE HOW DID THE FAMILY ESCAPE THE BEAR INTRUSION?
*August 25, 2008*

**social studies**

mexico city is surrounded by mountains. what effect has this had on the air quality in this city?
*May 29, 2008*

**Math**

Solve : 2x - 3 = 5
*May 13, 2008*

**Calculus**

f(x)=4sinx/1+cosx find f'(x) this is what i got and i dunno what i did to get it wrong (4cos(x)+ 4cosx^2-4sin(x)^2)/cosx62
*May 6, 2008*

**Calculus**

Let f(x)=9sinx/2sinx+4cosx Then f'(x)=________ . The equation of the tangent line to y=f(x) at a= pi/2 can be written in the form y=mx+b where m= _____and b=_____
*May 6, 2008*

**Trig**

Find sec theta if sin theta = -4/5 and 270 degrees < theta < 360 degrees.
*May 5, 2008*

**science**

Do enzymes speed up or slow down chemical reactions?
*April 15, 2008*

**chem-help**

the bright yellow light emitted by a sodium vapor lamp consists of two emission lines at 589.0 and 589.6 nm. what are the frequency and the energy of a photon of light at each of these wavelengths? what are the enegies in kJ/mol
*April 14, 2008*

**Philosophy**

1. Determine whether the following arguments are valid or invalid. If valid determine whether they are sound. Be sure to explain what validity is and how you determine whether an argument is valid or not. Explain your answers in as much detail as you can. There is no length ...
*March 30, 2008*

**12th grade math help!!!!**

if (x,y) are the coordinates of a point p in the xy plane then x is called _______ of p and the _______ of p
*March 28, 2008*

**biography**

where can i find information on queen latifah. i have to write a biography about her..
*March 25, 2008*

**math**

lol dud
*March 7, 2008*

**math**

No space?!? Lol I need help!
*March 7, 2008*

**math**

if 20 counters are the whole set,what fraction of the set is 16 counters?
*February 12, 2008*

**spanish**

Can you please tell me if my paragraph is correct? Thanks. Tenia hoy un mal dia. Primero me cai de mi cama. Entonces no habia agua caliente. Finalamente la parte peor de toda eq que camine' en heces del perro. El dia es desmesurado.
*February 12, 2008*

**Science**

How do can we help marshes
*February 7, 2008*

**Math**

It was 47F today. How many degrees above freezing is this? Number Sentence____________________ Answer____________
*February 5, 2008*

**math**

2 thirds of 25
*January 29, 2008*

**english**

I need help
*January 29, 2008*

**Math Analysis**

A quartic polynomial Q(x) with real coefficients has zeros 2+i and 3-2i, find the other two zeros.
*January 27, 2008*

**math**

yes, but you put the commas like this: 1,800,000
*January 27, 2008*

**Calculus**

Use the Midpoint Rule with the given value of n to approximate the integral. Round the answer to four decimal places. int_2^10 2 sqrt(x^2+5)dx text(, ) n=4
*January 18, 2008*

**calculus**

Consider the given function. f(x) = 3 sin(6x) text(, ) 0<=x<=(3pi)/2 (a) Find the Riemann sum with six terms, taking the sample points to be right endpoints. (Give your answer correct to six decimal places.) R6 = (b) Repeat part (a) with midpoints as sample points. (Give...
*January 18, 2008*

**calculus**

Consider the given function. f(x) = 3 sin(6x) text(, ) 0<=x<=(3pi)/2 (a) Find the Riemann sum with six terms, taking the sample points to be right endpoints. (Give your answer correct to six decimal places.) R6 = (b) Repeat part (a) with midpoints as sample points. (Give...
*January 18, 2008*

**Calculus**

Use the Midpoint Rule with the given value of n to approximate the integral. Round the answer to four decimal places. int_2^10 2 sqrt(x^2+5)dx text(, ) n=4
*January 18, 2008*

**social studies**

what magical figures were wrapped within a mummies wrappings
*January 17, 2008*

**mass affects on energy**

I need to come up with an experiment for observing how mass affects energy. Does anyone have any suggestions?
*January 13, 2008*

**physics**

8.1*10^4
*January 8, 2008*

**more chemistry this time concentration**

Some of the problems. I honestly have no clue how to do these/where to look for answers. What is the concentration of 5.28*10^14 Carbon Tetrachloride molecules dissolved in 149 mL of water? How many grams of Carbon Dioxide will there be in a 16.43 mL of a .03M solution.
*January 1, 2008*

**Chemistry=MOLES!**

I'm having trouble converting moles to grams and finding the mass of molecules. Problems I'm stuck on: What is the mass in grams of .99x10^49 Sodium Chloride Molecules? and How many moles of Cu are in 9.61 grams? and How many moles are in 5.94x10^45 Ne atoms? I just ...
*January 1, 2008*

**References**

what about if it is a website? Is it the date i first visited that website?
*December 2, 2007*

**References**

In APA citation format, there need to include Retrieved Date. What does Retrieved mean? What date should I put?
*December 2, 2007*

**physics**

3.9 m/s2
*December 1, 2007*

**Business**

A friend of mine is planning on becoming an insurance agent, he is trying to decide whether he should represent just one insurance company, or several companies. Can you help me think of some of the pros and cons for each option.
*November 17, 2007*

**Maths**

What's the answer for x^2-2x+3 and 2x^2+9x+4?
*November 3, 2007*

**math**

how to do factor completely
*October 24, 2007*

**Business**

What are the advantages and disadvantage of minimax regret criterion?
*October 20, 2007*

**math repost!!**

please help, i procrastinated and now this is due tomorrow!! A tangent line is drawn to the hyerbola xy=c at a point P. 1) show that the midpoint of the line segment cut from the tangent line by the coordinate axes is P. 2) show that the triangle formed by the tangent line and...
*October 16, 2007*

**math**

A tangent line is drawn to the hyerbola xy=c at a point P. 1) show that the midpoint of the line segment cut from the tangent line by the coordinate axes is P. 2) show that the triangle formed by the tangent line and the coordinate axes always has the same area, no matter ...
*October 16, 2007*

**MATH!!**

Find equations of both lines through the point (2, -3) that are tengetn to the parabola y=x^2+x i got the derivative as y prime = 2x +1, and i dont know where to go from there. PLEASE HELP this is due tomorrow!!!
*October 16, 2007*

**math**

Given: x+(1/x)= square root of 3 PROVE: (x^13)+(1/(x^13))= square root of 3
*October 15, 2007*

**Math**

what is the answer to the dot thing were you have three rows of there dots and you have to connect them all with four straight lines and no diagnals plez write back befor october 13 2007
*October 10, 2007*

**Chemistry**

For the compound Ge[S(CH2)4 CH3)]4 determine: a.) the ratio, by number, of C atoms to H atoms b.) the ratio, by mass, of Ge S THANKS!
*September 30, 2007*

**3rd grade math**

length in feet and inches
*September 27, 2007*

**finance**

did you find out the answers? im in mba now and i just got the same assignment. pls lemme know
*September 24, 2007*

**Micro Economics**

The Production Possiblilties Curve shows that when an eceonomy is acting at its full petential it will be poducing on a point just beyond the Curve. ture or false. Why?
*September 23, 2007*

**Science**

An electron travels 1.86m in 4.43e-8s. How fast does it travel?
*September 21, 2007*

**Algebra 1**

2x-4/x2*-9 times x+3/x2*-2x *means squared
*September 20, 2007*

**MATH**

DID Blaise Pascal help the map the foundation for the theory of probility
*September 17, 2007*

**MATH**

WHAT IS AN NEGATIVE ANGLE
*September 17, 2007*

**MATH**

on a compass,north has a heading of 0 degrees what is the heading when your going east,south or west
*September 17, 2007*

**math**

on a compass,north has a heading of 0 degrees what is the heading when your going east,south or west
*September 17, 2007*

**Math**

THE WIFE GOT 1740 THE FIRST CHILD GOT 1240 N THE SECOND CHILD GOT 620
*September 17, 2007*

**math**

what is 3.6731 in expanded form?
*September 12, 2007*

**math people**

how would you simplify 8a-4+8-2a?
*September 11, 2007*

**REPOST- PLEEEEEEEEAAAAAAASE HELP!!!!!!!!!!!!!!!!!**

wish I had math problems like that!
*September 11, 2007*

**REPOST- PLEEEEEEEEAAAAAAASE HELP!!!!!!!!!!!!!!!!!**

wow, that's easy
*September 11, 2007*

**REPOST- PLEEEEEEEEAAAAAAASE HELP!!!!!!!!!!!!!!!!!**

Yes, you are on the right track then
*September 11, 2007*

**REPOST- PLEEEEEEEEAAAAAAASE HELP!!!!!!!!!!!!!!!!!**

By the way, I think you would also put an = under the greater than sign when you write it.
*September 11, 2007*

**REPOST- PLEEEEEEEEAAAAAAASE HELP!!!!!!!!!!!!!!!!!**

do you have to figure out the value for n?
*September 11, 2007*

**OH MY GOSH! WILL SOMEONE HELP ME ALREADY?!?!?!**

Please see MATH DUDES!!! for my 3 questions.
*September 11, 2007*

**MATH DUDES!!!**

so then 6a = 25.33333333repeating? something or other?
*September 11, 2007*

**hey Justin...**

You mean what math class? I'm in geometry.
*September 11, 2007*

**MATH DUDES!!!**

thanks
*September 11, 2007*

**MATH DUDES!!!**

thank you for your help!
*September 11, 2007*

**MATH DUDES!!!**

I have 3 questions. 1.whats the value for h in 12h+9=85? 2.whats the value of m in 6m squared + 5 = 128? 3.what's the value of a in 8a-4+8-2a=156 Thank you if you help me
*September 11, 2007*

**us history**

i need help unscrmbling AAMERGDIMCB it is a city and an abriviated state...please someone help
*September 8, 2007*

**Math(Geometry)**

7. N,T.. o,t,t,f,f,s,s,e= one,two,three... 8. J, J.. j,f,m,a,m= Months 13. james john.. Presidents in order 14. Elizabeth, louisa.. First lady's 15.andrew, ulysses.. presidents on money, $20, $50 16. Gemini,cancer.. Astrology
*August 22, 2007*

**chemistry**

I think it isn't possible because.... NVM.
*August 17, 2007*

**geography**

heyy, i need to know where Australia buys most of its defensive weapons for the army (im guessing America or one of those Asian countries) Thankyou! Much apreciated = D Thank you for using the Jiskha Homework Help Forum. Here are some sites for you to visit: 1. http://www....
*August 1, 2007*

**math**

Good question
*June 6, 2007*

**english**

What is once in minute, twice in a moment and never in a thousand years m The answer is the letter "M" Thanks for your help, Dr. Russ Justin's Great Grandma!!!!!!!!!!
*May 11, 2007*

**Physics**

Because the ice acts as an insulator. The water will freeze to a certain point and will be near freezing, but the ice above will allow the water below to maintain it's heat energy.
*April 22, 2007*

**english**

Haha, that is classic. Yesterday, Today, Tomorrow. Name 3 consequative days with out using Sunday, Tuesday or Thusday?
*April 2, 2007*

**Statistics**

Could someone please help me with this question. I did the entire question, but then when I was assigning them to the two different types of treatments, I was having some trouble. I just figured that you could just number the females 1-42, and randomly pick 10 of them, and ...
*April 2, 2007*

**Math**

I have a problem that states to simplify. The equation is d=sqrt(x^2+(4-x^2-2)^2) The book tells me that the answer simplifies to sqrt(x^4-3x^2+4). Can you please help me understand where the -3x^2 came from? Thanks! d=√(x^2 + (4 - x^2 - 2)^2) =√(x^2 + (2 - x^2)^2...
*March 29, 2007*

**Computer**

I am finishing up an assignment in Microsoft Access and am having trouble understanding how to make this formula. The question states to write a query that shows each customer (Id, first and last name) along with the total amount of revenue for each customer (revenue=quantity*...
*March 21, 2007*

**science**

Whats the formula for FeCl3 ferric chloride? im not sure what you're asking
*February 22, 2007*

**Math**

You timed yourself typing a book report. It took you 28.8 minutes and the report was 4.5 pages long. Hoh long would it take you type one page? a. Write an expression to find the amount of time it will take to type one pate. b. Tvaluate the expression. How lin will it take to ...
*January 25, 2007*

**Gov't**

Which of the following is NOT a major function of either of the two major parties in the United States? a. To keep the general public informed about key issues. b. To monitor the conduct of its candidates in office. c. To assure the qualifications of candidates for office. d. ...
*January 22, 2007*

**Gov't**

I need to see if I got the right answer. Thanks. Which of the following groups has tended to support the Democratic psrty in recent decades? a. the business community b. Protestants c. union members d. white males I think it's c - union members because the others tend to ...
*January 22, 2007*

**Chem**

what is the meaning of "accepted value" with respect to an experimental measurement? Accepted value means that the majority of reasonable folks will accept that value as true. O thanks.. one more question When brought to the surface of the moon, will a mass have more...
*January 11, 2007*

**Chemistry**

Why are numbers used in chemistry often expressed in scientific notation? They otten are very large or very small. Printing those types of numbers is onerous.
*January 11, 2007*

**Just 2 sentences.**

The problems of conflicting expectations. The importance of not selling out. Can anyone make that sentences more simple? cuz I don't get what those means... I dont see a verb in either. Are these sentences, or sentence fragments? If these had verbs and objects, it would be...
*January 4, 2007*

**math, beginning algebra**

durrrr
*December 20, 2006*

**help+ english!**

I have to write an informal persuasive speech any suggestions? Justin, Here is a good general site on making a persuasive speech. http://timpview.provo.edu/~jeanar/rock_files/persuasive%20begin.htm If you are looking for topics.... if it is to be informal, then choose a topic ...
*November 20, 2006*

**Hamlet!**

What is the dramatic purpose of Scene IV? sorry Act 4 scene 4 This scene reminds Hamlet of his purpose. "Act IV, scene iv restores the focus of the play to the theme of human action. Hamlet’s encounter with the Norwegian captain serves to remind the reader of ...
*November 17, 2006*

**articles of confederation**

she is not a retard that was rude of you
*November 6, 2006*

**History**

w8 scratch that its spelled cartonnage
*October 16, 2006*

**History**

cartonage
*October 16, 2006*

**Physics**

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site it is commented that we are fishing for ...
*October 8, 2006*

**Physics**

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site it is commented that we are fishing for ...
*October 8, 2006*

**Physics**

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site it is commented that we are fishing for ...
*October 8, 2006*

**Physics**

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site it is commented that we are fishing for ...
*October 8, 2006*

**Physics**

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site it is commented that we are fishing for ...
*October 8, 2006*

**Physics**

*I am lost on a bunch of different problems, and this is one of them. Please note that I am NOT asking for final answers, just some guidance so that I can figure out how to do the problem!!! I know that a lot of times on this site it is commented that we are fishing for ...
*October 8, 2006*

**word unscramble**

I need word to unscramble the word Nouns please. Thanks
*September 28, 2006*

**natural philosphy**

Explain Platos conception of the cosmos, emphasising the ways in whish his thought represents a a synthesis of pre-socratic thinkers and the ways in which his thought reflects his idealist epistemological stance. Since this is not my area of expertise, I searched Google under ...
*September 23, 2006*

**book**

tell me your favorite book and what about it is. I have to take a survey. My favorite book is The Notebook by Nicholas Sparks because I love to read love stories and see that there is such a thing as true love. Thanks Katelyn. Can you also tell me brief story of it? I need it...
*September 21, 2006*

**Science**

Science an organized way of studing things and finding What is your question?
*September 21, 2006*