# Questions Asked onAugust 13, 2007

1. ## maths

IN this multiplication problem each letter P, Q and R represents a different digit. What 3 digit number is represented by PQR? PQR x 3 = QQQ 3xPQR = QQQ = Qx111 ----> PQR = 37 Q ----> P0R = 27 Q You know that 25x4 = 100, so you could try Q = 4, beause you

2. ## chemistry

if you added sulfuric acid to calcium nitrate what products in addition to calcium sulphate would you get if any ? if you start with calcium nitrate mixed into H2SO4 (aq), wouldn't you get a solution of nitric acid? H2SO4 + Ca(NO3)2 >>> 2 HNO3(aq) +

3. ## Algebra II

I have some questions on my assignment, if you don't mind could you look over my answers. thanxs! Find all the numbers that must be excluded from the domain of the rational expression. x+8/x^2-16, my answer: x cant be -4 or 4 x-3/x^2+11x+24, my answer: x

4. ## maths

A small primary school has a total enrolment of 50 students. A total of 20 of these play hockey, 18 play netball and 10 play both hockey and netball. How many students play neither hockey nor netball? Of the 38 who play netball or hockey, ten play both.

5. ## History

How did the Cold War (period that began immediately following WWII) affect the Congo Since you're doing a research paper, I suggest you first check the article on the Congo in this encyclopedia. http://encarta.msn.com/ For more information, go to Google

6. ## biology

please help me on this one...i need to know how a paramecia responds to certain stimuli....like fresh water, drop of dilute salt water, drop of vinegar, piece of food, air, and carbon dioxide. I need to know if it responds to a positive, negative or a no

7. ## Algebraic Proofs

Can someone tell me whats the missing information? Two lines intersect. Angle 1 equals left parentheses 3 times x + 20 right parentheses. Angle 2 = left parentheses 5 times x - 16 right parentheses, Angles 1 and 3 are vertical angles. The measure of angle

8. ## maths

can some one help me on how i work these qustions out..i need to simplify and write out the full solutions. 2x + 4 / 2 and 2x^2 / x^3 I'm not sure what you mean by write out the full solutions but If that means find x... the first one is simplified and

9. ## Social Studies

What is the name of a large city in southern Turkey? There are many cities in southern Turkey. This map shows major cities. The other site lists Turkey's largest cities. (Broken Link Removed) http://en.wikipedia.org/wiki/List_of_cities_in_Turkey

10. ## Grammar

predication 1. The reason for the cat's illness is because she was allergic to the dog. 2. The driving exam is when one is tested on he rules of the road. The cat's allegy to the dog caused her illness. Using "is because" and "is when" makes very awkward,

11. ## maths

In a netball competition, there are 9 teams. If each team plays each other twice, what is the total number of games played? The first round would be 9choose2 games, which is 9!/(7!2!) = 36 But you are playing two rounds, so the total number of games is 72

12. ## Math

Utkarsh bought 20 dining tables for Rs 120000 and sold these at a profit equal to the S.P of 4 dining tables.Find the S.P of one dining table. You should probably clarify what these abbreviations are. Rs = ?? S.P = ?? ??

13. ## writeacher

Those are not part of my homework- those are parts of a research paper I am trying to do okay It looks as if what you need to do is learn how to conduct thorough and effective searches. That's what research is. You are searching for information that is so

14. ## mathss

How do i solve the following equations giving the answers either exactly or to 3 significant figures? a)3x + 5 = 2x – 1 b)(x^2 + 9) / 2 = 10 c)x^2 = 4 (x – 1) d)2^x = 5 e)3^x+1 = 7 What do you not understand about thse euqations. They seem pretty

15. ## MATH

I'm having trouble with this problem: Guess a simple formula for the sequence that begins: -1, 1/2, -1/3, 1/4, -1/5 term(n) = (-1)^n x 1/n will do it

16. ## math

im looking at a photo of a quipu, and the question states what numbers does a string with three knots at the bottom, four knots in the middle, and five knots at the top represent? Here is a start http://en.wikipedia.org/wiki/Quipu#The_encoding_system

17. ## Algebra

I have a few more questions that I either need help with or just need checking. Is the algebraic expression a polynomial? if it is write the polynomial in standard form, 1. 6x-9+8x^2 I got Yes; 8x^2+6x-9 Perform the indicated operations. Write the

18. ## journalism

what are some examples of "educationally disruptive"? Anything that interferes with a student's education can be "educationally disruptive." This may be distracting behaviors or dress of students or teachers. (In the 70s, a girl with green hair was very

19. ## sociology

hi people actually i need 2 do a project on sociology for 20 marks n i cant decide which on a topic ca u all plz help n v also need 2 have a survey or 30-40 interviews plz plz plz plz help its urgent It would really help us teachers if you would write in

20. ## History

What were the atrocities committed in Congo by King Leopold’s colonial managers You asked these same questions last week and received answers. http://www.jiskha.com/search/search.cgi?query=king+leopold Please do not double-post questions. Thanks.

21. ## History

What caused the British government to take action with regard to these atrocities in 1904 With regards to how you worded your question, I think your it is incomplete as to "these atrocities". What atrocities are you refering to. My response sounds totally

22. ## History

Please note that we do not do students' homework for them. Please post what you think a good response is, even if it's in rough draft form, and someone here will be happy to give you feedback. If your textbook doesn't help, be sure to search at these

23. ## History

Why was self-rule initially difficult for the Congo Thank you for using the Jiskha Homework Help Forum. Since you are studying the Congo, you may like to visit the following sites: 1. http://en.wikipedia.org/wiki/Democratic_Republic_of_the_Congo 2.

24. ## Social Studies

Why was self-rule initially difficult for the Congo Already answered: http://www.jiskha.com/display.cgi?id=1187027745 Please do not double-post. Thanks. Those sites didn't help, but if you could help me I would appreciate it Thank you for using the Jiskha

26. ## Infant and toddler

What constitutes an ideal learning enviorment? Thank you for using the Jiskha Homework Help Forum. I just answered this yesterday or the day before: 1. http://www.hobart.k12.in.us/technology/learn%20envir.html 2.

27. ## math

If \$5,600 is deposited into an account paying 5% interest compounded annually (at the end of each year), how much money is in the account after 3 years? Are you familiar with the formula Amount = Principal(1+i)^n ? Amount = 5600(1+.05)^3 = 5600(1.05)^3

28. ## English/Predication

1. A book that has an exciting introduction and a surprising ending would be the best story fir me to read. 2. The Homeowners' Associations rules were created to ensure that the neighborhood looked nice. What is your question? Here are previous posts about

29. ## maths

Maria types one thousand whole numbers beginning at 1 and finishing at 1000. How many times does she need to hit the 3 key? Figure that, in the ones column, 3 will be hit, starting with the numeral 3, every tenth time, leading to 100 strokes. Do similar

30. ## math

Business and finance. The following scores were recorded on a 200-point final examination:193, 185, 163, 186, 192, 135, 158, 174, 188, 172, 168, 183, 195, 165, 183.(a) Find the mean final examination score.(b) Find the median final examination score.(c) Is

31. ## Algebra

Could you please help me with some math problems? Thanks! Add or subtract terms wherever possible. 1. 2 cube root of 135 + cube root of 455 2.y cube root of 24 - cube root of 192xy^3 none of your numbers in the cube roots in either question can be "broken

32. ## WRITING

How can you determine a source's biases? Why is it important to consider a source's biases? Check these sites. http://asher813.typepad.com/dreams_into_lightning/2006/05/how_can_you_det.html http://answers.yahoo.com/question/index?qid=20060814110837AA20E70