Questions Asked on
February 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

    asked by DANIELLE
  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

    asked by COFFEE
  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

    asked by jasmine20
  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

    asked by cyndi
  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

    asked by nick
  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

    asked by Lesley
  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

    asked by Belinda
  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

    asked by jon'dreneque
  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

    asked by COFFEE
  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

    asked by DANIELLE
  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

    asked by Anonymous
  12. algebra- please help me factor

    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)

    asked by Anonymous
  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

    asked by COFFEE
  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.

    asked by COFFEE
  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

    asked by Eunice
  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

    asked by lasha
  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...

    asked by Liam
  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

    asked by Emily
  19. Math

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

    asked by Danielle
  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- =

    asked by Mary
  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.

    asked by Chrissy
  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

    asked by Nitin
  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

    asked by Anonymous
  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

    asked by Shay
  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

    asked by jasmine20
  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

    asked by jasmine20
  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.

    asked by Claire
  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

    asked by Chrissy
  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

    asked by tofu
  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/

    asked by Taylor
  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

    asked by cyndi
  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

    asked by Emily
  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

    asked by Mary
  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

    asked by Cadence
  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

    asked by alexis
  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?

    asked by helpneeded
  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. =)

    asked by Ramika
  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 =)

    asked by Emily
  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"

    asked by Anonymous
  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

    asked by cameron
  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

    asked by Anais
  42. algebra, please help.

    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

    asked by Shay
  43. math

    need help with algebra fractions what is the question

    asked by adrian
  44. Maths

    Find tan(3 theta) in terms of tan theta

    asked by Jake
  45. Radicals

    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

    asked by Brittany
  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

    asked by LORE 645
  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. =)

    asked by cindy
  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.

    asked by Anonymous
  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

    asked by Richard
  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

    asked by Anonymous
  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

    asked by Anonymous
  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!

    asked by jose
  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

    asked by Katrina
  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

    asked by Megan
  55. Quadratic Equations

    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

    asked by Emily
  56. History

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

    asked by Kate
  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.

    asked by kayla
  58. american history

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

    asked by kayla
  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,

    asked by Danielle
  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

    asked by Anonymous
  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

    asked by rach
  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.

    asked by COFFEE
  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

    asked by COFFEE
  64. Quadratic Equations

    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

    asked by Emily
  65. business presentation

    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

    asked by joni
  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)

    asked by Ron
  67. Chemistry

    What does a saline solution of 0.9% mean quantitatively? (Per 100 gram solution; percent by mass) 0.9 g NaCl + 99.1 g H2O. Thanks!

    asked by Ron
  68. math

    what is the thickness of a penny The thickness of a U.S. "Lincoln" one cent piece is 1.55 millimeters

    asked by nani