# Questions Asked onAugust 21, 2007

1. ## Algebra

I have some problems that I am having trouble with and I have some that need checking please. Thanks! Solve the equation. 4. (x+7/4)=2(x-1/6) Find all the value(s) of x that make thedenominator(s) zero. Then solve the equation. 6. (x-8/2x) +5= (x+6/x)

2. ## math

1)The area A of a triangle varies jointly as the lengths of its base b and height h. If A is 75 when b=15 and h=10,find A when b=8 and h=6 2)Determine the equation of any vertical asymtotes of the graph of f(x)=2x+3/x^2+2x-3 1) Area of a triangle is 1/2

3. ## Spanish

Hey all out there, I'm having trouble with Spanish 3 (not sure if the level is the same elsewhere) At the moment we are reviewing 'Los Commandos Mandatos" (when I say review, I mean that I've never learnt it when I should already know it). If anyone has

4. ## Art... Value

Hello, In the following question, is answer #1, correct? I know that Value is the degree of lightness or darkness within a color. The more blue that exists in light the higher its color temperature, the more red contained in light the lower the color

5. ## algebra

4)Find the exact solutions of each system of equations x^2+y^2=25 and 9y=4x^2 answer= (3,4),(-3,4) This is correct from what I found after entering the functions into my TI-83 calculator and using the trace=> intersect function on the calculator.

6. ## algebra

1)Write an equation for the parabola with focus (1,3)and vertex(0,3) answer= x= 1/4(y-3)^2 2)Write an equation for a circle if the endpoints of a diameter are at (1,1)and(1,-9) answer= (x-1)^2+(y+4)^2=25 3)Which is the equation of a circle with center

8. ## extraction

How to distingush organic layer and aqueous layer? The organic layer is the one on top. Most organic solvents are less dense than water. (NOte: Non-hydrocarbons such as chloroform, methylene chloride, carbon tetrachloride etc are more dense than water.)

9. ## Math Word Problem

I asked my teacher, and my teacher said it had 3 shelves.. A bookcase is to be constructed. The height of the bookcase is 4 feet longer than the lenght of a shelf. If 20 feet of lumber is available for the entire unit (including the shelves, but NOT the

10. ## Algebra

Ann sells apples and Beth sells oranges. Today, half the number of apples than Ann sold was fifteen less than thrice as much the number of oranges that Beth sold. I just want it to know; how do I convert it into an algebraic expression or equation? Is

11. ## literature

My question is in the story "young goodman brown", by Nathaniel Hawthorne. can someone give me an example of a literary device and how the author used it. I have to come up with at least nine of them but I can't start because i am not understanding. I

12. ## Chemistry

Why does the addition of 50ml of 0.5M NaOH to 50mL of 0.6M KOH cause the pH to decrease (aka more acidic)? Because you have reduced the (OH^-) of the 0.6 M KOH by adding an equal volume of 0.5 M NaOH 50 mL x 0.6 M KOH = 30 millimols. pH = 13.78 Adding 50

13. ## World History

ummm... I need another map but I need to see the mountains and rivers above the Mediterranean sea.... thank you soo much!!! :] "Above the Mediterranean Sea" includes Spain, France, Italy, Greece, and Turkey, all of which border the Mediterranean on the

14. ## english

what is the "lord of the flies"? use a quote which helped you understand the term. Here is the source for the term "lord of the flies". "The title is said to be a reference to a line from King Lear - "As flies to wanton boys, are we to the gods, — They

15. ## electric engineering - bobpursley

Hi bob: I have a follow up question fo my previous post under heading electrical engineering If you could help me that would be great! :-) see the other post which briefly explains the drawings here:

16. ## math

what is the place and value of the underlined digit in 803. the underlined digit is 3 It's in the one's place the way to think about it is like this: in between the ones and the tenths is the decimal point. Hundreds/tens/ones.tenths/hundreths

17. ## environmental science

How should I write my notes. For what class? It depends on what class you are speaking of. Oh..ha..the post title. Okay.. For a science class you could write in outline form. This is not the only correct way to write your notes but it's how I organize

18. ## environmental science

I mean I know sort of what Im doing. Im doing this project on tropical rain forest. But this was are insrutions. (A)Descrition of the Biome (B)Location or locations where it is found (C)Climate and weather of the biome (D)Biodiversity found in the biome.

19. ## world history

What desert lies west of the Euphrates River and north of the Arabian Peninsula? Check this map for the name of the desert that lies in Iraq, Syria, and Jordan. http://www.lib.utexas.edu/maps/middle_east_and_asia/middle_east_ref04.jpg

20. ## algebra

4)Write the equation x^2-2x+y^2+4y=11 in standard form. answer= (x-1)^2+(y+2)^2=16 5)Write the equation 4x^2+24x-y+34=0 in standard form answer= y= 4(x-3)^2+2

21. ## environmental science

What web site can I use to find the biodiversity of Tropical rainforest?=) Please help! Check these sites. http://www.rain-tree.com/facts.htm (Broken Link Removed) But what do I suppose to write about that? I don't understand./:| Click on those web sites

22. ## Biology

Variables that are always different between the experimental and the control groups are? a.)independent b.) controlled c.) dependent d.) a and c

23. ## theology and religious studies

http://www.jiskha.com/search/search.cgi?query=academic+study+of+the+bible+today Please see the first two links here for previous responses to this very question. Thanks. what is the relevance of the academic study of the bible today especially in the

24. ## math

3 to the 5th power / 3 to the 2nd power= ?? 22 24 23 26 27 2100 213 (3^5) / (3^2) = 27 3 to the 5th power is 3 x 3 x 3 x 3 x 3. ________________________________________ 3 to the 2nd power is 3 x 3. Cancel two of the 3s on the top and the bottom. What do

25. ## science?

Why would a potato cook faster if you poke holes in it with a fork before microwaving it? ~My thinking is that it would increase the surface area..but this could be just partially why it cooks faster. Thank You =D I don't know in a microwave it cooks

26. ## Algebra I

In planning for a new item, a manufacturer assumes that the number of items produced x and the cost in dollars C of producing these items are related by a linear equation. Projections are that 100 itmes will cost \$10,000 to produce and that 300 items will

27. ## math

write the following as a rate in lowest terms \$402 for 18 rolls of film To find the rate for one roll of film, divide \$402 by 18.

28. ## Algebra

A athlete runs 40 ft in 5 minutes. i have to find the rate help please per min... 40ft/5min= 8ft/min

29. ## science

what instrument is used to measure lenght answer is ten letters A meter stick can measure length.

30. ## Religions of the World

Find 2 websites dealing with indigenous cultures/religions.Discuss how modern civilization has impacted the spiritual lives of the indigenous people you explored. Are indigenous religions still practiced today? If so, how have the practices changed over

31. ## electric engineering

First of all I need to let you know that I'm not an Engineering student. I'm just dabbling with it in a hobbie capacity. I recently wrapped 11 layers of 30gauge magnetic wire around a ball, approximatly 2" in diameter. Leaving a lead and starting from the

32. ## Algebra I

Driving down a mountain, Tom finds that he has descended 1800 ft. in elevation by the time he is 3.25 mi horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredth. slope is descent divided by distance from base.

33. ## algebra

What is the equation of an ellipse with a center (-4,2) and a horizonal major axis? I know the equation is x^2/a^2+y^2/b^2 and that's all. (Broken Link Removed) you will have to give more information. With only the centre (-4,2) all we can say is

34. ## math

what is the value of the underlined number? 170- the 0 is underlined, I know the place is the tens, thanks so much! The VALUE of the underlined number is zero. The place is the ones. It's not the tens place...didn't you read what I posted before? The

35. ## Math

2asqrt9a^3b - 3bsqrt20a^2b + 2a^2sqrt16ab Help?! 2,965,368 round this to the nearest hundred thousand. any suggestions? the hundred thousanth place is the 6 in the thousanths place. the number before that is 5. so 6 changes to 7 and the rest zero. like

36. ## World History

It would be nice if someone could please help me find a good map of East Egypt near the Red Sea, this map needs to include the peninsula names, the river's names, the mountain's names, and the desert's name. that i can read.... thanks :] These don't have

37. ## Math

uh oh if pencils cost 20 cents and pens cost 30 cents each find the cost of the following items number 36 has r pens and p pencils

38. ## SAT vocab

Would you say that deprecate, disdain (as a verb), and denounce are synonyms? These I found at Keyword: Thesaurus... an excellent help in checking synonyms and antonyms. I would agree that those are synonyms Synonyms bad-mouth, belittle, cry down,

39. ## Algebra

3(2+3-2(4-5)2-1)-3(2+4(4-2)-8+3(2-5)+1-2)1-3)+4-5 rather silly question, and some of it makes no sense eg look at the first part ......-2(4-5)2-1 does this end up -2(-1)(2) ? or did you forget an operator before the last 2? there is a similar discrepancy

40. ## History

. Describe the three key concerns that Washington had for the future of the U.S. Explain how the country has progresses in each area and give one specific example. Here's an answer I posted for this question a few days ago.

41. ## World History

It would be nice if someone could please help me find a good map of East Egypt near the Red Sea, this map needs to include the peninsula names, the river's names, the mountain's names, and the desert's name. thank you so much =] These maps should help you.

42. ## Science

I have to do an assignment on designing an animal that has adapted to life in the waters of the dead sea. But nothing can live in the dead sea so I don't know what to do. Can anyone help with suggestions? What about a micro organism? There are bacteria

43. ## environmental science

What do I suppose to write? I don't understand? /:| Please see my last post about biodiversity.