1. algebra

Are the following lines parallel, perpindicular, or neither? (a)x-2y=4 (b)2x+y=2 (a)-2y=-x-4 -y=-x/2-2 (b)y=-2x+2 I have that they are perpindicular. My question is this: is -x/2 the reciprocal of 2x? yes Thank You

2. science

Which one of the following words does not belong with the others and why? Father Aunt Sister Cousin Mother Uncle You and your sister have the same parents. Your father, mother, aunt, and uncle have the same sets of parents -- your two pairs of

3. math

Duke Maverick worked for a packaging company. One Day, Duke received four separate orders and acidentally mixed up the addresses, so he applied the address labels at random, what is the probability that exactly three packages were correctly labeled? If

4. eng

How do i write an application for a day's leave from school? I would use a memo format -- http://owl.english.purdue.edu/handouts/pw/p_memo.html -- and make the text of the memo short and to the point. "I am requesting leave on Tuesday, February 27, 2007,

5. check!

The following statement describes, in random order, events during the transmission of a nerve impulse. Use them to answer the next \g question(s). Event 1: Positive ions flow into the neuron. Event 2: The resting potential of the cell membrane is restored.

6. Physics

1)Three positive particles of charges 9µC are located at the corners of an equilateral triangle of side 15cm. Calculate the magnitude and direction of the force on each charge. 2)What is the electric field strength at a point in space where a proton (m =

7. Physics

You are given two unknown point charges, Q1 and Q2. At a point on the line joining them, one-third of the way from Q 1 to Q2, the electric field is zero. Are Q1 and Q2 like or unlike charges? How many times greater is Q2 than on Q1? I am really confused on

8. Chemistry

Using molymods make 2 ring structures of glucose and join them through a condensation reaction between carbon 1 on one molecule and carbon 4 on the other. What molecule is formed through this procedure?

9. Math

A triangle has sides 3x + 7, 4x – 9, and 5x + 6. Find the equation that represents its perimeter I believe you put each equation which represents a side in parenthesis: (3x + 7) + (4x – 9) + (5x + 6)

10. math

I still don't get it. I asked someone and they said that the answer was 111. ok, i got it but i still don't understand how to do it since i still have many more problems. could someone please thorougly explain to me in steps how to do a problem like: 12

The following statement describes, in random order, events during the transmission of a nerve impulse. Use them to answer the next \g question(s). Event 1: Positive ions flow into the neuron. Event 2: The resting potential of the cell membrane is restored.

13. IT

high level languages need to be translated. what are two different types of translator? Thank you for using the Jiskha Homework Help Forum. By your question do you mean human vs. mechanical (machine or computer-assisted) translation?

14. check!

Posted by Anonymous on Thursday, February 22, 2007 at 12:20pm. The following statement describes, in random order, events during the transmission of a nerve impulse. Use them to answer the next \g question(s). Event 1: Positive ions flow into the neuron.

Use the straight line amortization method. Equipment amortizes 20 percent per year. Trial Balance for March 31, 2005 shows equipment worth \$90,030.

16. Math

I am putting < for the square root abbreviation. I don't know how to use it on my comp. 3

17. Literature

Hello! I have an essay due soon, and I need some help with my thesis statement. I haven't written an essay for a few years so if someone can critique and comment on the thesis it would help out a lot. Thanks! Here it is: Although some might argue that

18. acids and bases

Is everything an acid or a base? it totally depends. It depends on how you define an acid and base. In water systems, yes. But in non water solutions...say oil mixed in gasoline....pH has no meaning. Why acids act in similar ways?

19. Pre Cal

Ooops! I wrote it wrong, here's the problem: if x varies directly as y^2, inversely as z, and inversely as the square root of w, what happens to x when y is multiplied by 3, z is doubled, and w is quadrupled? I would really appriciate it if someone could

20. Math

Could someone please help me? calculate the volume in cu. ft of a section of drainage pipe that measures 8 feet in lenght and 24 inches in diameter (all measurements has to be in the same units and be careful that you distinguish between diameter and area

21. math,help,correction

directions: subtract 4x-2x^2+4x^3 from 4x^3+x-3x^2 the answer that i came up with was: x^2-3x Is this correct. How did -3x^2 -(-2x^2) become x^2

22. math

help my daughter has a math problem and came to me for help, I am lost.... what is the gcf for the following trinomial? x^3-18x^2+28x I am assumming you are trying to factorise we can simply take out an x to give: x(x^2-18x+28) the quadratic will not

23. surds

Can anyone explain simply how Surds work and a simple process how to solve them. Also a simple explanation for factorisation is needed. You have to be much more specific. Surds is a very encompassing term. Since this is not my area of expertise, I searched

I need help solving this: 6x^2-x-12=0 I usually could do this yet i have completely forgotten what i need to do seeing as there is a number infront of the x^2 This equation is of the general form a x^2 + bx + c = 0 The solution is always x = [-b +/- sqrt

25. Jen

2 < 10^x < 5 take the log of all. log 2< x

26. Inequality prob#2

log(x-2) + log(9-x) < 1 log(x-2) + log(9-x) < 1 log(x-2)(9-x)

27. English

what makes a good research topic Same answers as yesterday! http://www.jiskha.com/display.cgi?id=1172090007 =)

28. Chemistry

Please help! A drop of oil (volume 0.05 cm3) is released from a medicine dropper on to the calm surface of a pond where it spreads out to cover an area of 40 cm2. Assume that the oil film has a uniform thickness equal to the diameter of an oil molecule.

29. Science

I am reading about partial solar eclipses, and my book has this warning: CAUTION:Looking directly at even a tiny sliver of the sun during a solar eclipse can damage your eyesight permanently. Why do they give this warning specifically for eclipses? Is the

30. QUICK! HELP! SCIENCE!

It's the kind of word that's at the tip of my tongue but I can't quite remember it. The bright, hazy light around the moon during a total solar eclipse is the sun's ( ). I've got to fill in that blank. I do remember that earlier it was described as a halo

31. humanities

I am writing a greek tragedy (play) about the godess athen (warroir godess, godess of owls) and artemis (godess of hunting, moon and light) I need some ideas for a really cool play, somthing that with make a good conversation You have a warrior who

32. English Literature

Sir Gawain and the Green Knight is a literary work of great merit. However, it contains implausible or strikingly unrealistic incidents or characters. Write an essay of approximtely 500 words that demonstrates how various incidents or characters (at least

33. Emglish

Subject-Verb Agreement 1. Either the interviewer or the committee members usually begins by asking simple questions about your background. http://grammar.ccc.commnet.edu/grammar/sv_agr.htm Scroll down and read #5. Then let me know what you think, and I'll

34. global history

Why did Asian and African nations gain independance after WW2? Why is Japan an economic sucess (list reasons)? Check this site for answers to your first question. http://en.wikipedia.org/wiki/Decolonization_of_Africa Japan is an economic success because of

35. maths

Hi, could someone please tell me how I would go about working these out: (the answer must be in the form aãb where a and b are integers and b is as small as possible.) 1) Simplify ã500 2) Simplify ã50 x ã60 Also.. Simplify the following

36. Physics

What is the repulsive electrical force between two protons in a nucleus that are 5 x 10^ -15 m apart from each other? Could you help me with this problem? I can't figure out how to do this. Use Coulomb's equation F= kQQ/r^2

37. Physics

A force of 8.4 N is exerted on a -8.8µC charge in a downward direction. What is the magnitude and direction of the field? How would I set up this problem? Force= Eq solve for E.

38. computers

Can i have more then two IDE in my computer? yes or no and why?

39. computers

how do i upgrade the bytes on a computer? Do you mean adding memory? That's referred to as adding RAM (random access memory). Wherever you bought your computer, there will be people who can help you decide what to buy and maybe even install it for you. =)

40. Computers

what files do i need for windows 1998 and 2000? What do you mean what files do you need? ..... to run windows 98? or what? be more specific Thank you for using the Jiskha Homework Help Forum. More than the system you are running, what kind of computer do

234 - 145 3/4 233 4/4 -145 3/4 ___________ 88 1/4 or am I wrong? How do I solve this if I am wrong? Thank you!! you're correct

42. Physics

The electric field midway between two equal but opposite point charges is 1000 N/C, and the distance between the charges is 16.0 cm. What is the magnitude of the charge on each?

43. math

I need help simplifing multiple exponents with integers. I.E (-2y^-3)^-3

My book doesn't explain how, for example, if D was --. and O was .-. than how would they tell the end of the D from the beginning of the O? Did they pause between letters? But then how would they know the difference between a "new letter" pause, and a "new

I need help simplifing multiple exponents with integers. I.E (-2y^-3)^-3 (-2y^-3)^-3 is the same as: (-2^-3) x (y^-3)^-3 which gives (-1/8)(y^9)

46. math

What would be the answer to85x205=960x3256 85 x 205 = 17425 960 x 3256 = 3125760 They aren't equal. Sorry. =( WAT ARE YOU ASKING EXACTLY The longest one-day bike race goes from Bordeaux, france, to paris, france. the record for this race was set in 1981 by

47. Algebra

Rationalize the denominator of each expression. Assume that all variables are positive. I understand how to divide them, but don't exactly know how to rationalize them. ã3xy^2/ã5xy^3 Thanks in advance.

48. criminal justice

Police are what to the criminal justice process? Good question, I'm curious too. Good luck getting an answer! I imagine that you could call them the "mentors". The see that the rules are followed. Police enforce the laws of the criminal justice system.

49. science

what does a microphone change sound waves into? elictrical waves/pulses

50. Science

What happens if the nervous system is damaged? You are either paralyzed in part or all of your body (depending where it was damaged and how severely)or you have trouble with feeling and controlling the damaged part of your body. Nerves rarely heal

51. Chemistry

Can you help me with balacing this equation: potassium chromate + iron nitrate yeilds potassium nitrate + iron chromate I will be happy to critique your work on this. Okay so . . . I start off writing the equation equation like so K2CrO4 + FeNO3 YEILDS

52. Greek mythology

What are some interesting facts about Hera the greek goddess she wanted to trick Zeus and make him loose power http://www.pantheon.org/articles/h/hera.html http://en.wikipedia.org/wiki/Hera

53. Red scare

what are the questions that people are asking about the red scare? What period of history are you talking about? The term "red scare" applies mainly to the cold war era, and ended about 1990. It reached its height between the Korean and Vietnam wars. Both

54. English

Does anyone have the superior knowledge as to where I could find an easy read translation of Romeo and Juliet for no price at all on the Internet?? Thank you for your valuable time and wonderful guiness. you could just read spark notes summaries Thank you

55. Urgently needing help!!!

I have this on an assignment: Estimate 16 20/30 x 28 3/7 - 4 13/25 + 8 2/47 as a whole number or as a mixed number where the fractional part is 1/2. A. 452 B. 480 C. 488 D. 492 1/2 I am trying to work this, and am coming up with (D) 492 1/2. Will you

56. algebra 1

s+t=-4 s-t=2 s = -1 t = -3

57. Math

1 2/5 divided by 21 Which is correct? A. 21/1 x 5/7 = 105/7 =15 or B. 1/21 x 7/5 = 7/105 / 7/7 = 1/15 Neither is correct. The answer is (2/5)/21 = 2/(5*21) = 2/105. Are you sure you copied the problem correctly? 1 2/5 divided by 21 sorry. I missed the "1"

Okay I'm DESPERATE. Can somebody please tell me what n^3-64 divided by n-4 is? And for x/x+2 - 4/x-2 - 1 is the answer 2(-3x+2)/(x-2)(x+2) see above. helpppppppppppppp me i am failing your fat

59. algebra

Find the slope and y-intercept. x=7 I know that the slope is undefined. The y-intercept would be none, right? Since no y is listed. What you have is a vertical line through x = 7. "y" can be anything. The slope is infinity and the y axis is never

3. T^2-25/t^2+t-20= (t-5) (t+5)/ (t-10) (t+2) 4. 2x^2+6x+4/4x^2-12x-16= 2(x+2) (x+1)/4 (x-4) (x+1) 5. 6-y/y^2-2y-24= 1/(y+4) *Please check them.- 3. (t-5)(t+5) / (t+4)(t-5) 4. 2((x-1)(x+2)) / 4((x+4)(x-1)) 5. (6-y) / (y+6)(y-4) i don't really understand

61. chemistry

write a formula equation for the following equation:Ammonia reactsa with hydrogen chloride to form ammonium chloride. NH4 + HCl = NH4Cl something like that How about NH3 + HCl ==> NH4Cl (NH4^+ is the ammonium ion. NH3 is ammonia).

The concentric circles, or growth rings, represent the cross-section of a tree with a diameter of 16 centimeters. The width of the outer tree ring measures 2 centimeters. What is the area in square centimeters of the outer ring of the cross-section of the

The concentric circles, or growth rings, represent the cross-section of a tree with a diameter of 16 centimeters. The width of the outer tree ring measures 2 centimeters. What is the area in square centimeters of the outer ring of the cross-section of the

64. AP U.S. History Foreign Policy

What were the essential principles of the Theodore Roosevelt's foreign policy, and how did he apply them to specific situations? he believed in the more developed nations helping those that were more underdeveloped. He used the army to help countries like

65. progressive movement

What caused the progressive movement, and how did it get under way? (Broken Link Removed)

66. american neutrality 1914-1916

Why was it so difficult for Wilson to maintain American's neutrality from 1914-1916? for ww1 he tried to solve things but the allies and central powers wouldnt listen many people were pressuring him to do something, but he wouldn't. even some people in his

67. great depression 1920's

What weakness existed beneth the surface of the general 1920's prosperity, and how did these weakness help cause the Great Depression?

68. post World War II

Discuss the effets of World War II; historians and other scholars have commonly spoken of "postwar American society." How was society diffrent after the war that before? Were there changes all direct or indirect results of the war, or would many have

69. MATH!

PLEASE HELP! Okay I'm DESPERATE. Can somebody please tell me what n^3-64 divided by n-4 is? And for x/x+2 - 4/x-2 - 1 is the answer 2(-3x+2)/(x-2)(x+2 n^3-64 is a difference of cubes: you should have an equation to factor it.

Let f: [a,b] -> R. Given f is integrable and bounded below, show 1/f is integrable.

71. Algebra 1

sqrt (10/2)= sqrt 5 Quotient Property: 2*sqrt10/2 I need to learn how to simplify the expression give me a problem and i can teach you

72. Algebra 1

Quotient Property: simplify the expression 8* sqrt 13/9 8*sqrt (13/9)= 88sqrt13 /sqrt0 = 8/3 * sqrt13

73. Alg-Substitution (check plz)

k well i had to use substitution to find the point of intersection for these 2 equations x-y=10 3x+y=11 i chose to substitute y in the first equation my final answer was (-1/2 , 5) can someone clarify this, and if it's wrong, where'd i make a mistake? In

74. Biology

Why can sex hormones pass through a cell directly while protein hormones have to attach to the receptor site on a cell membrane?

75. science

Whats the formula for FeCl3 ferric chloride? im not sure what you're asking

76. Shakespeare

I posted a question yesterday asking for some links about guilds during Shakespeare's time. I have two more questions. The first one: Are Sea Dogs basically pirates or mapmakers? Or are they both? The second question: What exactly are the "tools of trade"

77. WORLD HISTORY

How did the french participation in the American Revolution factor into the growing econimic and social crisis in France? Thank you for using the Jiskha Homework Help Forum. Just think about the war the U.S. is fighting these days. When troops leave their

78. Communication

what are the basics for doing a powerpoint presentation All Microsoft Office programs have very good "Help" sites, and if you have Office 2003 or later, you'll be able to get help online, too. In addition, if you click on File and then on New, you will

79. cultual diversity

describe other measurments sociologists use to calculate prejudice? Previously answered: http://www.jiskha.com/display.cgi?id=1172103418

80. PLEASE CHECK!!! THIS MY MY 20TH TIME POSTING!!!!

The following statement describes, in random order, events during the transmission of a nerve impulse. Use them to answer the next \g question(s). Event 1: Positive ions flow into the neuron. Event 2: The resting potential of the cell membrane is restored.

81. Science

Wow!! This is an awesome website!! Thank you soooo much!!! I owe you one!! Hey! I need help on a question in science... The question is: After proteins are made by the ribosomes, how do they leave the cell? What is this process called?? I seriously don't

82. little

how do u find base times the height? You multiply the base and the height together.....

83. algebra 1 PLEEZ HELP!!!

well.... this problem is really easy to approach.... which value is th x coordinate of the intersection of 3x+y=15 and x+2y=10? a.) 3 b.) 4 c.)-3 d.)-4 C. --- (-3) how did you get that though???

84. Science (Cont.)

Can anyone please answer my science question???? PLEASE!! if nobody on here is answering, try doing a little research on other websites i need some help on my homework

85. algebra 1

what coordinate point is the solution to the system? {3x+2y=8 {x-y=1 y=x-1 so 3x+2(x-1)=8 3x+2x-2=8 5x-2=8 5x=10 - - 5 5 x=2 Then 2-y=1 -2 -2 -y=-1 y=1 Well, to cut the crap the answer is (2,1)

86. Science....

Look at my previous post.... Can anyone please answer my science question??? well what's the question? http://www.sinauer.com/cooper/4e/chapter10.html Well, did u look at my previous post??? Hey Lance!! Thanx sooo much!! I got the problem right! I owe u

87. i really, really, really need help

what coordinate point is the solution to the system? {3x+2y=8 {x-y=1 (2,1) please don't think i just made that up, it's correct. you have to use substitution, when you do solve for x and y, you get: x= y+1 and y=x-1, plug in y for 3x+2y=8 and you get: y=1,

88. MATH MULTIPLICATION!!!

PLEASE HELP ME SOLVE THIS PROBLEM: 4((3x-6)/(6x+2))^3 * ((42)/(6x+2))^2 okay, here your going to use PEMDAS. Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction go in order of PEMDAS. does that help? (3+4}2*-(2*4)2 4=

solve the system using substitution {x+2y=11 {3x+2y=13 i just told you how to do the other one; it's the same exact method. solve for x and y. you get: x=-2y+11 and y=(-1/2x)+(11/2). then plug them both back into the original equation (either one, it

solve the system using substitution {x+2y=11 {3x+2y=13 i just told u this one

91. math

how many millimeters are in 5 meters? 5000..i think 1000 mm = 1 meter. 5 meters x (1000 mm/1 m) = ?? Thats what I thought. I am pretty sure 5000 is right? You are correct. 5000 millimeters are in 5 meters....