Questions Asked on
April 19, 2007

  1. math,help

    Is this trinomial a perfect square x^2-6x+9 if the trinomial starts with x^2 and 1/2 of the middle term coefficient squared equals the last term, then it is a perfect square. tell me what you found. i thought it was not a perfect square. because i tried

    asked by jasmine20
  2. Chemistry

    7.0 ml of 6.0 M NaOH are diluted with water to a volume of 400 ml. You are asked to find the molarity of the resulting solution. The total number of moles of NaOH is not changed on dilution. Calulate the molarity. Work: (6)(.007)=(x)(.4) x=.105M Thanks for

    asked by Anonymous
  3. ..physics.

    At 20.0 C, an alumium ring has an inner diameter of 5.0000 cm and a brass rod has a diameter of 5.0500 cm. a. If only the ring is heated, what temperature must it reach so that it will just slip over the rod? b. WHAT IF? If both are heated together, what

    asked by jean
  4. physics

    A rod of length 30.0 cm has linear density(mass-per-length) given by [lambda]= 50.0g/m + 20.0x g/(m^2) where x is the distance from one end, measured in meters.(a) What is the mass of the rod? (b) How far from the x=0 end is its center of mass? never mind.

    asked by jean
  5. science

    can you inscramble these letters to make 2 words first word 12 letters, 2nd word 5 letters ietnnrncuinvtohte Thank you for using the Jiskha Homework Help Forum again. I answered the first one I saw, which was just before this one!

    asked by katie
  6. physics

    Two radio antennas simultaneously transmit identical signals with a wavelength of 3.35 m. A radio several miles away in a car traveling parallel to the straight line between the antennas receives the signlas. If the second maximum is located at an angle of

    asked by anonymous
  7. Chemistry

    One more problem with 1/2 reactions Pb(s) + PbO2(s) + 2H2SO4(aq)->2PbSO4(aq)+2H2O(l). How do you split them up with two Pb solids on the same side of the equation? Again you need to identify what is being reduced and what is being oxidised. I think I read

    asked by amy
  8. unscramble letters

    ietnnrncuinvtohte 2 words first 12 letters, 2nd 5 letters Thank you for using the Jiskha Homework Help Forum. How about "inconvenient truth?" i think so thanks srajmcgin what words can u make out of the word mellow? DIURETHPHELE Can N-Yone Unscramble Thes

    asked by katie
  9. last physics problem.

    At 25.0 m below the surface of the sea(density=1025 kg/m^3) where the temperature is 5.00 C, a diver exhales an air bubble having a volume of 1.00 cm^3. If the surface temperature of the sea is 20.0 C, what is the volume of the bubble just before it breaks

    asked by jean
  10. physics!

    The New River Gorge bridge in West Virginia is a steel arch bridge 518m in length. How much does the total length of the roadway decking change between temperature extremes of -20.0C and 35.0 C? The result indicates the size of the expansion joints that

    asked by jean
  11. science

    Is sodium nitrate polar or nonpolar and how do I figure this out? Sorry about these extra posts. Someone was kind of spamming my post and what they said got deleted. 10, why? okay, um, well, i still need help

    asked by Filmore
  12. oxidation

    In the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water, the oxidizing agent is... ? Fe(II) ==> Fe(III) H2O2 ==> H2O. Fe goes from +2 to +3, that is a loss of electrons, so it is oxidized (by definition,

    asked by Christine
  13. chem

    thanks Is sodium nitrate polar or nonpolar and how do I figure this out? thanks You need to consult your text or your notes to see what you teacher calls ionic and what s/he calls covalent. Generally, a difference in electronegativity (you can look up the

    asked by Filmore
  14. Language Arts - Writing

    Can anyone suggest an animal that could be considered messy or disorganized, along with a complementary animal that would be associated with tidiness or neatness? ie: curious cat, wise owl, smart pig, sly fox. Thanks. The messiest creature, aside from man,

    asked by JC
  15. more math

    Every month, a girl gets allowance. Assume last year she had no money, and kept it up to now. Then she spends 1/2 of her money on clothes, then 1/3 of the remaining money on games, and then 1/4 of the remaining money on toys. After she bought all of that,

    asked by Hot Stuff
  16. science

    what is photosynthesis? Photosynthesis is a process in which green plants use energy from the sun to transform water, carbon dioxide, and minerals into oxygen and organic compounds. It is one example of how people and plants are dependent on each other in

    asked by HERSHEYS
  17. Chemistry

    I need help splitting this reaction into 1/2 reactions 3I2(s) + 2MnO2(s)+8 OH-(aq) 6I-(aq) + 2MnO4-(aq) + 4H2O(l) Can you identify which components are oxidised, which are reduced and those that undergo no change? Can you identify which components are

    asked by amy
  18. People

    what is an explanation of what apartheid is?

    asked by Emily
  19. Chemistry

    Write a balanced equation for the reaction between hydrochloric acid and zinc metal. Zinc + hydrochloric acid ==> zinc chloride + hydrogen. These are the reactants and the products. You make it into formulae and balance it. I shall be happy to check your

    asked by Chrissy
  20. physics

    Help! I have no idea how to solve this: If the distance between two slits is 0.0550 mm, find the angle between the first-order and second-order bright fringes for yellow light with a wavelength of 605 nm.

    asked by anonymousq
  21. math,correction

    the problem reads: evaluate sqrt (-4) if possible. my answer: sqrt (-4)

    asked by jasmine20
  22. science

    Why do I have brown eyes? The genes we inherit from our parents determine things like our height, looks, hair color and eye color. This passing of characteristics from parent to child is called heredity. If your mother has brown eyes, and your father has

    asked by HERSHEYS
  23. science

    What are stem cells? Stem cells, the basic building blocks of human development, are sometimes called “magic seeds.” That’s because they can regenerate human tissue of various kinds. The use of stem cells is controversial because the best source for

    asked by HERSHEYS
  24. Economics

    What were the drawbacks of central planning in the former Soviet Union...Plz help ASAP LUV tatiana It was political, as opposed to practical. It relied on false data, provided politically correct. It failed to allow for market forces, producing much that

    asked by Tatiana
  25. science

    How do scientists know how to make a flu vaccine if viruses can be different every year? he flu virus changes every year. However, scientists gather information about virus mutations, or changes, before the flu-virus season begins. This lets them predict

    asked by HERSHEYS
  26. people

    how did Nelson Mandela help to the end of apartheid? Since this is not my area of expertise, I searched Google under the key words "Nelson Mandela" to get these possible sources: (Broken Link Removed)

    asked by Emily
  27. Economics

    How did the Four Modernizations make the Chinese economy more like the U.S. free enterprise system? Check this site for some information.

    asked by Tatiana
  28. chemistry

    If a solution has a lot of particles, is it going to have a low or high boiling point? For instance, would NaCl have a higher or lower boiling point than C12H22O11, based on the amount of particles it has (NaCl has more than C12H22O11)? Are you thinking of

    asked by Grace
  29. Chemistry

    i was wondering which ones are soluble in water and what ones are not: K2CrO4, CaS, Na2S, and BaSO4 I was also wondering if AgBr and CaCO3 are soluble as well. BaSO4, AgBr and CaCO3 are insoluble. The others are soluble. I can give you a web site that

    asked by Phil
  30. Physics please check repost

    In exercising, a weight lifter loses 0.100 kg of water through evaporation, the heat required to evaporate the water coming from the weight lifter's body. The work done in lifting weights is 1.30 x 10^5 J. (a) Assuming that the latent heat of vaporization

    asked by Mary
  31. english

    Life is full of choices, so I must learn to make good ones. What is your question about this sentence? More on identifying verbs? If so, there are three of them. Tell us what you think, and we'll give you feedback. ?? Cynthia, that is an excellent idea,

    asked by cynthia

    The President's choice for cabinet secretaries can be rejected by a. the House b. The Vice President c. the Senate d. the Attorney General I think it's c. the Senate. Am I correct? yes.

    asked by Suzi
  33. math

    What is 990 divided by 150 answer in 30 seconds 33/5 990/150 = 6.6 Divided by 30 seconds, it is .22 per second. I hope this helps. Thanks for asking. yasimine: There is a simple online calculator available. Do this, paste 990/150 into the google search

    asked by yasmine
  34. science i neeeddd help

    How did the sun wind up in the middle of the solar system? Did the materials, gas and dust that eventually formed the planets come from the sun? I think this is the answer is it correct- Since our solar system is already formed, we must try to reconstruct

    asked by Hot Stuff
  35. Science

    Why does my hair stand on end when I take off my hat on a cold, dry day? Everything you see is made up of atoms. They contain even smaller particles, called protons and electrons. Protons have positive electrical charges and they never move. Electrons have

    asked by HERSHEYS
  36. chemistry

    cooler water has more dissolved oxygen: hot water has hardly any at all. Oh, so they go to the bottom to get oxygen. Why does cooler water have more dissolved oxygen? Generally gases are more soluble in cold water than warm water. Think of an open coke can

    asked by bobpursley
  37. safety

    US FEMA/Homeland Security is responsible for disaster preparedness relief along with the American Red Cross. Are we really prepared to handle a major disater? Why or why not? How do/are we preparing for a disaster? What is recommended for our citizens to

    asked by Amanda
  38. chem

    Can someone help me please? 1)Calcium chloride is found in salt mixtures that are used to melt ice on the roads in winter. The dissolving of CaCl2 is exothermic. Provide two reasons why CaCl2 is a good choice for this application as compared to a salt such

    asked by Mary
  39. Trig

    I don't know the physics behind Snell's Law, but I can do the math Snell's Law says sin(angle of incidence)/sin(angle of reflection) = refractive index since you know the two angles... sin45/sin27 = refractive index =1.5575365 so for an angle of refection

    asked by Reiny
  40. Health

    Can you help me with this question? The determinant of total energy requirement that may most appropriately be manipulated in a weight loss program is: 1. basal matabolic rate 2. physical activity 3. dietary thermogenesis 4. body temperature Would the

    asked by Lana
  41. science

    How did the sun wind up in the middle of the solar system? Did the materials, gas and dust that eventually formed the planets come from the sun? Since our solar system is already formed, we must try to reconstruct its history by studying current star

    asked by HERSHEYS
  42. Bringing up Grades

    I need help bringing up my grades. Some suggestion, if I don't my life will suck. my science teacher said the best way to get your grades up is to turn in work. extra credit will help to. Jordan is right. You need to change your habits, which is not easy.

    asked by Johnny
  43. Computer - Programming

    Please waht are meaning of the following functions when using Fortran i) DSIN ii) AMOD iii) IDIM iv) CABS Thanks Search on Google, each term like this: fortran idim fortran cabs fortran amod fortran DSIN

    asked by Sola
  44. Cultural Diversity

    Should United States government policy favor certain kinds of immigrants? Should citizenship preference be given to the neediest applicants? The most talented? The most oppressed? The richest? Should applications from certain countries be given priority?

    asked by Linda Wortham
  45. chem

    Sorry about that. I don't know why it did that? I will try to recap the two or three sentences I read. The oxygen molecules dissolve in H2O in the spaces between the molecules of H2O. Liquid water consists of a network of hydrogen bonded water molecules.

    asked by DrBob222
  46. My Retyped Algebra Post

    1. Use the arithmetic sequence of numbers 2,4,6,8,10.. to find the following: a)What is d, the difference between any consecutive terms? Answer: Show work in this space: b)Using the formula for the nth term of an arithmetic sequence, what is 101st term?

    asked by Antonio

    Please help. I'm trying to figure these True or False questions. A President's threat to grant amnesty can sometimes convince Congress to make changes in a bill to satisfy the President's objections. T or F I think it's true. Am I right? As the nation has

    asked by Suzi
  48. senior citizens

    How did senior citizens lived in the middle ages? It was the obligation of the children to take care of their elderly parents, just like it is still today in many societies. It was a disaster to enter "old-age" and to be childless. I don't know what you

    asked by Pancha
  49. society

    I searched Google under the key words "middle ages culture" to get these possible sources: (Broken Link Removed)

    asked by PsyDAG
  50. genes

    Are the studies of twins more important in understanding single gene traits or quantitative traits? why? quantitive traits are the most important. Why? because it is the study of more genes.

    asked by JOSE
  51. maths

    Kat has a recipe for a 10cm square based iced cake of height 5 cm. He wants to scale the recipe down for a 6 cm square based cake tin, by scaling it down all the ingredients to give a smaller cake of the same shape. Choose the three statements which are

    asked by katie
  52. math

    1/a-1/b ------- a/b-b/a please simplify triple decker fraction you will have a common denominator of ab for the top and a common denominator of ab for the bottom, so they will cancel remember that to divide one fraction by another, you multiply the first

    asked by cody
  53. Physics

    WHat happens to a pendulum's kinetic energy when it stops moving??? at the top? It has transformed to gravitaional potential energy.

    asked by Dave
  54. math,correction

    simplify: sqrt ((7)/(100)) my work: 7 = 1sqrt (7) 100= 10 sqrt (1) (1)/(10) sqrt (7) my answer: (sqrt (7))/(10) Your answer is right but your statements: 7 = 1sqrt (7) 100= 10 sqrt (1) make no sense. how can sqrt(7)=7 ? you are saying 2.6457..=7 and

    asked by jasmine20
  55. Chemistry

    ELement A has a valence electronic structure of ns2np1. Element B has the valence electronic structure of ns2np5. Why would you expect a compound from elements A and B to conduct an electric current in its solid state??? Because it is more than likely an

    asked by John
  56. question about essay

    In one of my sentences in my essay, I wrote that "I have a tendency to do things in a unique way." What is an example of this simple, yet important fact to support this? Only you can answer this because no one here knows you or how you do "things." And be

    asked by Emily
  57. Chemistry

    In the reaction 2H20(aq) --> O2(g) + 2H20(l) why doesn't increasing the pressure of oxygen have any effect on the reaction rate? Balance the equation first. What you have isn't balanced. Frankly, it doesn't look possible. You have two mols H2O on each

    asked by Fiona
  58. physical science

    The answer to this can be found more quickly by consulting either an online or hardcopy dictionary. Here is an online dictionary definition. Main Entry: ge·ol·o·gy Pronunciation: jE-'ä-l&-jE Function: noun Inflected Form(s): plural -gies Etymology: New

    asked by PsyDAG
  59. sociology

    How does modernization manifest itself in U.S. society? How do you define modernization? How do you think it shows up in our society?

    asked by Anonymous
  60. math,correction

    simplify: 7sqrt(7x) + 5 sqrt (7x) My work: (7+5)sqrt (7x) My answer: 12sqrt (7x) is this correct? It looks fine. Good work. Thanks for asking.

    asked by jasmine20
  61. Chemistry

    ELement A has a valence electronic structure of ns2np1. Element B has the valence electronic structure of ns2np5. Write a formula for the compound that would be formed from elements A and B. Element A has three electrons to lose to make the last shell

    asked by Dave
  62. Chemistry

    ELement A has a valence electronic structure of ns2np1. Element B has the valence electronic structure of ns2np5. Oh I meant Would you expect a compound from elements A and B to conduct an electric current in its solid state and why??? I would expect it to

    asked by John
  63. english

    I am looking for all VERBS both "Action" and "Be" verbs identified in the sentence. In 1999, I went to Disney World for vacation. There is one verb in that sentence. Which word do you think it is? ??

    asked by cynthia
  64. Cultural Diversity

    Should citizenship preference be given to the neediest applicants? Such as most talented, most oppressed and richest? Any "should" question is a question about values. What are your values related to this question? What criteria, if any, should be used in

    asked by Linda Wortham
  65. chemistry

    Please help me with this one. You are trying to dissolve oxygen in water. Will you be successful? Explain your answer.

    asked by Lydia
  66. pre-calculus

    In the following exercise, find the smallest interval for theta [from this point on i will denote theta as '*' for ease of typing] starting with * min= 0 so that your graphing utility graphs the given polar equation exactly once without retracing any

    asked by Chris
  67. Patterns and Relationships

    1. Which rule is correct for the following: 2,8,20,44 a. yx2+2 b. y+4x2 c. y+3x3 d. y+2x2 2. Which fraction does not belong in the pattern? 1/5, 2/10, 3/15, 4/25 it is D. i believe. the pattern of the first three in 2 it can be reduced to 1/5 (all of

    asked by Alexis
  68. Social

    Hi in social studies were learning about el salvador and today we saw a video but i was absent..and the homework says to Give a summary of the revolution of el salvador ( like a pargraph) but i don't know anyting about it... any help is appreciated thanks

    asked by Jon
  69. vocab

    i need three more sentences using frothed please help!!! thanks so much it means to bubble or foam. i figured out some sentences but now i need to know if you can change it into a verb, adjective, or adverb. and if it can have any prefixes or suffixes.

    asked by Christina
  70. comparing words

    what is the exact connection between, "flout" and "law" Please look up these words in a dictionary. Then tell us what you think the connection is. We'll be glad to comment then. flout means to mock and law is the rule i think the connection is...umm is it

    asked by Sexy Girl
  71. math,correction

    is this correct: solve by using the quadratic formula 5x^2+x=3 what i keep getting is this: (-1 +/- sqrt 61)/(10) or should i reduce the denominator to 5 or is my whole answer incorrect? (-1 +/- sqrt 61)/(10) looks correct. You do not need to reduce it

    asked by jasmine20
  72. Math

    While Driving down a mountain, top 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 decent to the nearest hundredth. I am not sure where to start on this

    asked by Russell
  73. math,correction

    solve: x^2+7x+2=0 My answer: x= (-7 +/- sqrt (41))/(2) good one jasmine

    asked by jasmine20
  74. education

    What does I a SWAA stand for? It is a brain teaser.

    asked by Maria
  75. Bio.

    I need to write a bio about Dirk New. the basketball player on the mavericks! okay here is something i found on the web is this okay if i copy it but write in in my own words but here is the bio.- Dirk Nowitzki was born in Würzburg (de), Germany, on June

    asked by HERSHEYS
  76. Social Studies

    Does anybody know what Battle of the revolutionary war was the most greatest? Please help thank you The consensus of many historians is The the Battle of Saratoga was the major turning point. you would have to go to different websites to find the answer

    asked by Amy L.
  77. math

    y = log x If y = 10, then what is x? is this the answer y = log x 10 = log x 10 = 10^x x = 1 your second last line should say 10^10 = x so x= 10000000000 (assuming your base of the log x was 10) Hot stuff: Your IP address has been recorded. You have been

    asked by bobpursley
  78. calculus

    For the intergral of -(x^2)/3 +6 interval [0,3] Rewrite it as a function of n using the right hand endpoint without any summation sign. can anyone help me start this problem out?

    asked by jimmy
  79. math,help

    on one of last week homeworks i got this one wrong can someone explain to me what is the correct format. The demand supply equations for a certain item are given by: D= -5p+40 S=-p^2+30p-8 The correct answer was: $1.43 how do you get to this answer because

    asked by jasmine20
  80. Information MGT

    Discuss any two stages of Systems Development Life Cycle (SDLC) with examples This depends on the model you have for SDLC. There are various models in academia. I always liked the development stage, and the Test and EVal stage, myself. guy ya doin

    asked by Ms Brown
  81. Physics- drwls please check

    Good morning. This is a repost. The system is telling me my calculations is incorrect. I thought a fresh pair of eyes would help. Suppose a monatomic ideal gas is contained within a vertical cylinder that is fitted with a movable piston. The piston is

    asked by Mary
  82. culteral diversity

    How does race and ethnicity in the United states help people to better understand or relate to a specific miniority group We have plenty of chances to get to know people of various ethnic groups through school, work, and neighborhood contacts. When we know

    asked by Jo
  83. Business Law

    Consider what this rule might mean to businesses, particularly those that contract with the government. Consider, for example, a store or outlet that purchases federal/military surplus. What provisions might they need to include in a contract that might

    asked by Richard

    Biggest Land mammal: African elephants weigh up to 14,000 pounds and can eat as much as 600 pounds of food a day! Marine mammal: The blue whale is the world's biggest animal, even larger than any known dinosaur. An average-sized adult is 80 feet long and

    asked by HERSHEYS
  85. maths

    Choose three options which are examples of exponential growth or decay. A) The number in the sequence 2,6,24,120,720…… B) The amount of money in a bank account which earns compound interest. C) The radioactivity of a sample of a radioactive isotope. D)

    asked by katie
  86. Chemistry

    The ripening of a banana in which the skin turns yellow and it tastes sweet is an example of what change??? physical or chemical????? Chemical.

    asked by Anonymous
  87. does this make sense?

    Can someone plz tell me if this makes sense? It's for an essay. Thx One might say I can be sensitive with what other people say to me. When I sometimes hear something somebody tells me, I occasionally take it the wrong way than it was supposed to. This

    asked by Emily
  88. french

    a baby ours polaire (polar bear) and a baby loup (wolf) in french1 ASAP! and if u can a french animal with thease letters in its name : l u u v e a t e o and another with these letters:m a c n h o thank you for your help!!! answers ASAP A good website you

    asked by S@m
  89. Chemistry

    Why is a beaker more acurrate to use when measuring the evaporation over a period of time of a liquid instead of an Erlenmayer flask??? I don't know that it is. It depends upon the size of the Erlenmeyer flask, the beaker, how much water is in the

    asked by John
  90. Chemistry

    Is a beaker more precise in determining volume than an Erlenmayer flask??? Probably... More precise would be a graduated cylinder but if that's not an option I'd go with the beaker. See my answer to a similar question below. It all depends upon the size of

    asked by John
  91. math,correction from previous post

    can someone please correct this for me thanks. simplify: 7sqrt(7x) + 5 sqrt (7x) My work: (7+5)sqrt (7x) My answer: 12sqrt (7x) is this correct? yup so i don't have to take out the x from the radicand Nope. 7x + 5x = 12x No matter what "x" is.

    asked by jasmine20
  92. math,help

    I need help with thisone solve: ((x)/(5x+10))+ ((x-3)/(x+2)) = (7)/(5) Let's take that first part: (x)/(5x+10) In the denominator, factor out "5" That leaves that part as: x/(5(x+2)) So now we have: ((x)/5(x+2)) + ((x-3)/(x+2)) = 7/5 We can multiply BOTH

    asked by jasmine20
  93. math,help

    I also need help with this one: Add. Express answer in simplest form. ((8)/(s))+ ((8)/(s^2)) (8s + 8)/s^2 = 8(s+1)/s^2 That isn't much simpler than the original form, but sometimes they want single denominators. wouldn't it be : (8s+8)/s^2

    asked by jasmine20
  94. diversity

    Which is Mexico´s cultural diversity? This site gives all the groups influencing culture in Mexico with links to specifics.

    asked by Regina A
  95. cultural diversity

    Which is Mexico´s cultural diversity? (of other countries) Look at the section under this site that says Immigration

    asked by regis
  96. history

    Subject is history, not some other nonsense. Keep in mind that we don't do students' homework for them. Write up your best thoughts, re-post, and someone here will give you feedback. How people lived in the middle ages?

    asked by Writeacher
  97. science

    The specific heat capacity of the lava is 1600 J kg^-1. when all the erupted lava cools from the eruption temperature of 1050 degrees Celsius to 15 degrees celsius, the heat released is 2 x 10 ^15 J. calculate a value for the total mass of lava that

    asked by missy
  98. math i neeeeeeed help anyone

    One day, a person went to horse racing area, Instead of counting the number of human and horses, he instead counted 74 heads and 196 legs. Yet he knew the number of humans and horses there. How did he do it, and how many humans and horses are there? is the

    asked by Hot Stuff


    asked by DES
  100. algebra

    How do you do this: Write an exponential function of the form y=ab^x that has a graph through (-2, 25) and (1, 10). This is what I have so far: 10=ab^1 10/b=a y=10/b*b^x 2/25=10b^-3 .008=b^-3 Then I am stuck. Am I doing it right so far? How do I continue?

    asked by Viggo
  101. Chemistry

    ELement A has a valence electronic structure of ns2np1. Element B has the valence electronic structure of ns2np5. If the value of n for element A is 3, what is the set of 4 quantum numbers that would describe the energy of the electron represented by np1?

    asked by John
  102. Computer - Programming

    What are the differences between this FOTRAN resevered words: a) COMPLEX and CMPLX b) INTEGER and INT c) DOUBLE PRECISION and DBLE The first of each of the terms are used for data declarations. The second of each are intrinsic functions and are used to

    asked by Sola

    I am confused. Please help A President can use armed forces overseas a. at his or her own discretion b. after a declaration of war has been issued by Congress c. once Congress has approved the decision d. pending approval by Congress within forty-eight

    asked by Suzi
  104. geo/science

    could you please tell me if this is the correct formula for radiometric date t=1/constant 1n (1+d/p) many thanks ps this is a fantastic website I think that you are after t=1/ë[ln(1+D/P)] where: t = age of the sample D = number of atoms of the daughter

    asked by bex
  105. mesopotamy

    Which was the role of elderly people that where in ancient Mesopotamy i wrote wrong mesopotamia Already answered here. =)

    asked by regis
  106. ALGEBRA 1

    Solve by whatever Method 1. X^2 +8X = -16 X^2 +8X +16 = -16 +16 (X +4)^2 =0 X+4 =+/- SQRT 0 X=-4+/- 0 X=-4, X=4 2. 3x^2-2x-5=0 X=-b+/- sqrt (b)^2-4ac 2a a=3 ,b=-4,c=-5 X=-(-2)+/- Sqrt (-2)^2-4(3)(-5) 2(3) X=2+/sqrt64 = 2+/-8 6 X= 2+8=10/6=1 2/3,

    asked by DANIELLE
  107. art

    what kind of filter do you use on a white light to make people aear yellow? Yellow, it allows only yellow light to pass thru.

    asked by martha
  108. business

    I am given a project to Develop and Incorporate a Business. I decided about video game business for example companies that make big systems like xbox. I have to write a essay. Type of Entity?: LLC Reason for selecting Entity? What is entity LLC? Can you

    asked by Prashant
  109. maths

    Compass bearings of a carin are taken from two points A and B, 400 m apart, along a strsight north-south path, A being due north of B. the bearings of the carin from A and B are 110 degrees and 80 degrees, respectively. choose the two options which give

    asked by kelly
  110. senior citizens

    How elderly people lived in the renaissance? hola There weren't many elderly people in the Renaissance. But most of them lived with their children.

    asked by montse
  111. cultural diversity Look under Immigration at this site. Which is Mexico´s cultural diversity? (of other countries)

    asked by GuruBlue
  112. math,correction

    i have to simplify (a^7b^2)^7 so this is what i ended up with: a^49b^14 should i reduce it more or its fine like this? It is fine.

    asked by jasmine20
  113. Physics

    When hitting a golf ball, does the force of gravity increase or decrease?? increase Why is a beaker more acurrate to use when measuring the evaporation over a period of time of a liquid instead of an Erlenmayer flask???

    asked by John
  114. vocab

    i need to know if you can change frothed into a verb, adjective, or adverb. and if it can have any prefixes or suffixes. Please help thanks! See my response below. Dictionary definitions will also include part(s) of speech. =) Frothed is a verb. Frothing

    asked by christina
  115. Biology

    What is the difference between a stamen and an anther in a flower?? Check this site for a diagram and explanation.

    asked by Jenna
  116. critical thinking

    What would be some good sources to look for these things: rhetorical devices, examples of bias, fallacies, or faulty reasoning, argument good/bad, valid/invalid, or strong/weak and non-factual issues addressed, moral, legal or aesthetic reasoning.

    asked by gigi
  117. Cultural Diversity

    Should United States government policy favor certain kinds of immigrants? Please tell us what you think, and we'll be glad to critique it and add more ideas.

    asked by Linda Wortham
  118. bio

    explain why yhe concept of gene pools appies to the populations but not to species.

    asked by JOSE
  119. Pre-Algebra

    I don't understand this equation: Given f(x)=4(x)+1 find the value. f(3) It's fairly basic, you just plug 3 in for x, so it would be 4(3)+1 and then you'd just simplify it :)

    asked by Kayla
  120. social studies

    This one question is about the revolutionary war. What action finalized the colonies independence from great britian? A. a mutuat agreement with parlament B. a vote in the continenal congress C. an order of Genral George Washington D. a royal decree from

    asked by Amy L.
  121. math

    who can figure this problem out in .30 seconds? Now lets see if you can!!!

    asked by yasmine
  122. Physics

    When hitting a golf ball, does the force of gravity increase or decrease??

    asked by John
  123. Calculus urgent

    For the intergral of -(x^2)/3 +6 interval [0,3] Rewrite it as a function of n using the right hand endpoint without any summation sign. can anyone help me start this problem out? I noticed somebody else had that post before, perhaps it was you. I am not

    asked by jimmy
  124. math

    slope of the line for (4,8),(5,10) Aaron, to find the slope of a line you would have y2-y1 over x2-x1 and that will give you the slope of 2 cordinates.

    asked by Aaron
  125. ALGEBRA 1

    Can someone please check on these for me please .Thanks Use the Quadratic Formula to solve 1.

    asked by DANIELLE
  126. math,correction

    is this correct: solve: 5(x-2)^2=3 My answer: (10 +/- sqrt 15)/(5) looks like you expanded, then used the formula and you got the right answer properly reduced. I think you are getting this!!! I don't want to confuse you but I would have done the

    asked by jasmine20