# Questions Asked onFebruary 12, 2007

1. ## ALGEBRA 1

If x and 3x-10 represent the measure of the acute angles of a right tringle find the value of x. THANKS Let's take it step by step. A triangle has 3 angles in it. Those three angles, when added together, is 180. In a right triangle, one of the angles is 90

2. ## Physics/Math

A stuntman drives a car (without negative lift) over the top of a hill, the cross section of which can be approximated by a circle of radius R = 110 m. What is the greatest speed at which he can drive without the car leaving the road at the top of the

3. ## math, correction

can someone help me correct this Directions: Dtermine which two equations represent perpendicular lines. options are: A) y = 2x-4 b) y = (1)/(3) x + 4 c) y= - (1)/(2)x +4 d) y = (1)/(3)x - 4 wouldn't it be a and c . Because b and d have the dame slope

4. ## nuclear physics question

Isotopes of a given element have many different properties, such as mass, but the same chemical properties. Why is this? your exact answer here: ehttp://en.wikipedia.org/wiki/Isotope look under Variation in properties between isotopes zkwiftnl iplesyjob

5. ## math

what constant acceleration, in SI units, must a car have to go from zero to 60mph in 10s? How far has the car traveled when it reaches 60mph? First, recognize or calculate that the final velocity is 60 mph = 88.00 ft/s = 26.822 m/s Then divided the metric

6. ## science: cells

1~ What do red blood cells do and is there anything significantly different about them from other types of cells? 2~ What are bone cells and is there anything significantly different about them from other types of cells? (I just need help for studying i

7. ## US History

Why did the National Labor Union collapse? Please don't give me links - I've looked everywhere, including Wikipedia. I just don't understand what actually caused it to collapse so I'm looking for an answer. I'm trying to connect it to the collapse of the

8. ## science

pick two systems in the body and explain how they interact interact with what? each other? elaborate plz. The respritory system and circulatory system are dependant upon each other. All respirations eventualy take place at the cellular level. When you

9. ## Physics/Math

A stuntman drives a car (without negative lift) over the top of a hill, the cross section of which can be approximated by a circle of radius R = 110 m. What is the greatest speed at which he can drive without the car leaving the road at the top of the

10. ## ALGEBRA 1

FOUR OF THE ANGLES OF A PENTAGON HAVE THE MEASURE 30,70, 120, AND 165. TO FIND THE MEASURE OF THE FIFTH I ADD THE FOUR MEASURES WHICH IS 385 AND SUBTRACT IT FROM 540 WHICH IS 540-385=135 WOULD THIS BE CORRECT. IS THERE A FOMULA THAT I NEED TO USE TO ARRIVE

11. ## French

Can anyone edit this for me, please? J'ai des cheveux bruns et des yeux marrons. Les gens disent que je suis drôle et j'amène le bonheur à leurs vies. J'aime rire beaucoup. Je suis très responsable. Je suis une perfectionniste. Je peux être très

b^2-22b+57 I am not sure but I got b(b-22)+57 Looks right to me. No, the answer should be: b^2-22b+57 = (b - 3)*(b - 19)

13. ## Physics/Math

A bicyclist travels in a circle of radius 35.0 m at a constant speed of 7.00 m/s. The bicycle-rider mass is 72.0 kg. Calculate the magnitude of the force of friction on the bicycle from the road. Calculate the magnitude of the net force on the bicycle from

14. ## Physics/Math

A certain string can withstand a maximum tension of 43 N without breaking. A child ties a 0.37 kg stone to one end and, holding the other end, whirls the stone in a vertical circle of radius 0.91 m, slowly increasing the speed until the string breaks.

15. ## Chemsitry

What is the purpose of cell matching? (1 mark) I've been researching for quite a long time now. This question relates to using spectrometry. Can anyone help me? Thanks! I let this question go yesterday because I connected it with cells is biology. On

16. ## math

how to work out -9x+17-10x=-21x+23 its 43 duhhhhhhhhhhhhhhhhhhhh that isn't worked outttttttttttttttttttttttttt!~ It's not worked out - nor is her answer correct. So if someone says, "duhhhhhh," don't feel too badly. She obviously didn't know how to solve

17. ## Geology

How do i work out skewness and sorting Thank you for using the Jiskha Homework Help Forum. Hopefully the following sites will help you: faculty.uml.edu/nelson_eby/89.215/Assignments/Sand%20Size%20Distributions.p...

18. ## Math

How do you find a square root of a number that's not a perfect square? I'm very confused. The book doesn't explain it too well. You can approximate it or simplify it in terms of (products of) square roots of smaller numbers. E.g. consider sqrt[117] The

19. ## Math

What are objects that are eleven sided? An eleven-sided polygon is called a hendecagon. Another name is undecagon.

20. ## Chemistry

I've posted this question now three times and no one has responded. I first posted it Sunday 2/11 at 1 pm. Meanwhile, other questions are being answered. Can someone please help... Al^3+ forms a complex ALSO4+ in the presence of sulfate... Al^3+ + SO4^2- =

21. ## Economics

Describe three specific measures the government can use to access the health of a country's economy. Take a shot. Think. There are a plentitude of ways governments affect the health of their economies. I have some ideas but I'm not sure if they are right.

22. ## Competetion help on Integration

If there four options are given to a Defenite Integration then what shortcut trick we should choose to get the correct answer. Like in Indefinte Integration we find the differtation of the answer to reach the function given to integrate. You can try to

23. ## Should Canada continue to support the ............

Declaration of Human Rights? I need to make a debat right so I need to know why you support it or why you don't Thanks in advance The whole point of a debate is for you to look into it and decide, then debate why or why not. So...go look into it and decide

24. ## algebra

Maurice drove 400 km from Edmonton to Battleford in 1 hour less time than it took Martin to drive the same route from Battleford to Edmonton. If Maurice drove 20 km/h faster than Martin, at what speed did each of them drive? Show a complete algebraic

25. ## math, correction

am i also correct for this one. directions: list all the factors of 45. my answer: 1,3,5,9,15,45 yes

26. ## math, correction

Problem #1 Directions: Find the GCF for 14 and 21. My answer is: 7 Problem #2 Directions: List all the prime numbers between 25 and 60. My answer: 29,31,37,41,43,47,53,59 41 what do you mean by saying 41? I MEAN THAT'S 41 AND THAT IS SUPER -DUPER EASY

27. ## Gustave Courbet, The Quarry

cgfa.sunsite.dk/courbet/p-courbet14.htm I need to analyze it in terms of the way it reflects realism. I need at least four points. I don't really know how to go about it. Do I describe the deer, the expressions on their faces? It doesn't make sense to me.

28. ## Economics

Why would a country choose to have a mixed economy? I know a mixed economy is a combination of a command and a free market economy. I don't understand the point of combining these two types of economies because they are basically totally opposite.It would

29. ## Econ question trade part 2

i posted this question yesterday. but i also got another questions This is the chart Canada produces 50 wheat and 20 Microchips Jpn produces 2 wheat and 12 Microships the original question was 1. If the terms of trade changed to 2 microships for one tonne

30. ## Social Studies

I am studying the Federalist Papers. I am having a hard time understanding them. Is there a website that will help explain them easier? Here are some websites that may help. http://www.law.ou.edu/hist/federalist/

31. ## physics-rotational dynamics

Two astronauts, each having a mass of 75.0 kg, are connected by a 10.0 m rope of negligible mass. THey are isolated in space,orbiting their center of mass at speeds of 5.00 m/s. calculate A)magnitude of the angular momentum of the system by treating

32. ## World Studies

Where will I find imformation and maps of Russia? http://en.wikipedia.org/wiki/Russia This site has a lot of maps of Russia. http://images.google.com/images?q=Russia+map&hl=en&ie=UTF-8&safe=off&sa=X&oi=images&ct=title

33. ## Chemistry

Given: Al^3+ forms a complex ALSO4+ in the presence of sulfate... Al^3+ + SO4^2- = AlSO4+ with Kstab = 10^3.01 Question: How many ppm Al(total) would be in equilibrium with gibbsite at pH 4 and 25 degrees celsius in the presence of 10^3- m SO4^2- (consider

34. ## Economics

HELP!! What are two decisions that our government(macro) has made recently. There were supposed to be three decisions but I cam up with one: President Bush has sent more soldiers over to Iraq. I need two more. look at newspapers. also look on google. hope

35. ## chmistry

When 0.633 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 103C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant

36. ## CALCULUS!! OH DEATH!!!

I need to solve: Lim as x is approaching 1/4, for (4x-1)/(1/ ([square root of x] minus 2)). Help would be greatly appreciated!!! It's trivial using L'Hopital's rule. Answer: -64 Correction, the answer is -1. what is l'hospital rule?

37. ## english

what is a consonant Consonant = not a vowel. The vowels are a, e, i, o, u, and sometimes y. All other letters are consonants. =)

38. ## World Studies

Where can I find geographical maps of northeastern Russia? See the links posted here: http://www.jiskha.com/display.cgi?id=1171316339 and here: http://www.lib.utexas.edu/maps/commonwealth.html =)

39. ## math

what is the mode of this set of numbers:13,11,7,9,12,5 i don't think there is a mode, because no number occurs more than once. you might want to look up what mode is. ther's no damn mode umm..yur dumb "SOORY"

40. ## quote from Misanthrope

Hello, I can't find this qoute in the Misanthrope "Still in a letter, appearances may decieve, this may not be as bad as you believe, I can't find it in the book. thanks http://www.bibliomania.com/0/6/4/1967/frameset.html This website has the entire play

41. ## help

who was the 1st black hockey player http://www.aaregistry.com/african_american_history/1398/The_first_Black_pro_hockey_player All I did was to go to http://www.google.com and I entered first black hockey player. It's very easy to do. Be sure to try

Maurice drove 400 km from Edmonton to Battleford in 1 hour less time than it took Martin to drive the same route from Battleford to Edmonton. If Maurice drove 20 km/h faster than Martin, at what speed did each of them drive? Show a complete algebraic

43. ## math

need help with algebra fractions what is the question

44. ## Maths

Find tan(3 theta) in terms of tan theta

i need help solving this problem.. -2 multiplied by the square root of 5 multiplied by 3 which is multiplied by the square root of 6 which is also multiplied by the (-)negitive square root of 7 plz put the problem in symbols as it is shown in your textbook

46. ## mATH

WHAT IS A LESAT COMMON DENOMINTAIR the least common multiple of two or more denominators. I copied it from merriam webster website. Too hard for me to explain it. this pretty much explains it. a factor is (plz jiskha staff plz make sure im correct) a

47. ## Geography

what it the name given to a body of land with water surrounding it? http://www.mcwdn.org/MAPS&GLOBES/LandForms.html Let us know which you think is correct, and we'll give you feedback. =)

48. ## ethnics

How would you explain the misconception statement that Asian Americans and Pacific Islanders belong to a singl Please finish the question and we will try to help you.

49. ## ORG. CHEM- Extraction Conclusion

Does this sound okay, if not how might i improve it? Thanks. In this lab the purpose states that the method of extraction is to separate and distil two different immiscible liquids, an organic layer and an aqueous layer. In this experiment an ion transfer

50. ## ethnics

What are the most significant similarities between the Chinese American and Japanese American [cultural]? What are the differences? Choose from any of the following topics when considering similarities and differences: · Level of assimilation · Relative

51. ## ethnics

How would you explain the misconception statement that Asian Americans and Pacific Islanders belong to a single Asian culture and are a model minority

52. ## math

what is monomial a monomial is one term containing variables or constants. see merriam webster website too. look up monomial. hope it helps!

53. ## MATH!!!!ASAP!!!

I'm confused with transitive property, substitution postulate, addition postulate, and subtraction postulate. What are they? and What are the differences between them? go to goole i mean google http://library.thinkquest.org/2647/algebra/post.htm fcpaljbk

54. ## Science/Math

A radio wave has a frequency of5,000,000 Hz. Write this number in scientific notation. ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? This is not the right answer so hurry up as

I couldn't find the sets of factors that add up to -13 in this problem. Plz help, anything is greatly appreciated! x^2-13x+36 Thx for helping ppl! you could use the quad. eqn which is -b plus or munus sq root of b squared minus 4 ac all over 2 a That is a

56. ## History

Did John Lennon have any brothers or sisters http://en.wikipedia.org/wiki/John_Lennon#Early_years:_1940-1957 =)

57. ## american history

why did the south industrilize more slowly than the north? The south had fertile farmland that produced abundant crops. It also had slaves to work this land.

58. ## american history

how did the 1877 Haymarket strike cause the public to resent the labor movement? http://en.wikipedia.org/wiki/Haymarket_Riot

59. ## Thermometers

why arent thermometers truly accurate Thank you for using the Jiskha Homework Help Forum. First of all you haven't mentioned what kind of thermometer interests you. As for the temperature outside it would depend upon if the thermometer were in the sun,

60. ## Social studies/ Psychology

i have to do a project on the endocrine system it must be a display that is 3d any ideas it must not be store bought such as a model that i purchased i have to make it myself i was thinking of using styrofoam and shaping it into a human outline and making

61. ## ap us history

what was alexander mitchell palmer's background. What religion is he associated with and how was his relationship with his parents? http://de.wikipedia.org/wiki/Alexander_Mitchell_Palmer This is in German, but it's not too hard to figure out what they're

62. ## Physics/Math

A certain string can withstand a maximum tension of 43 N without breaking. A child ties a 0.37 kg stone to one end and, holding the other end, whirls the stone in a vertical circle of radius 0.91 m, slowly increasing the speed until the string breaks.

63. ## Physics/Math

A bicyclist travels in a circle of radius 35.0 m at a constant speed of 7.00 m/s. The bicycle-rider mass is 72.0 kg. Calculate the magnitude of the force of friction on the bicycle from the road. Calculate the magnitude of the net force on the bicycle from

I couldn't find the sets of factors that add up to -13 in this problem. I have to solve this problem by factoring, not anything like the -b/2a or anything. Plz help, anything is greatly appreciated! x^2-13x+36 Thx for helping ppl! Emily, Couldnt it be

Sometimes, technology and visual aids can be more of a distraction than a helpful component to a presentation. Provide an example of this from the real world (focus on a business presentation)? How could it be changed to be more effective? tough one Just

66. ## brain teaser help

I A S W A A Thank you for using the Jiskha Homework Help Forum. Here is your answer! AcronymDefinitionIASWAAIt's A Small World After All (song)