1. physics

    A small crack occurs at the base of a 15.0 m high dam. The effective crack area through which water leaves is 1.30 *10-3 m2

    asked by Anonymous on December 3, 2014
  2. economics

    19-1 Bicycle Insurance and Information Asymmetry If bicycle owners do not know whether they are high- or low-risk consumers, is there an adverse selection problem? 19-2 IPOs and Adverse Selection Should owners of a private company contemplating an IPO (a

    asked by lori on May 2, 2013
  3. economics

    19-1 Bicycle Insurance and Information Asymmetry If bicycle owners do not know whether they are high- or low-risk consumers, is there an adverse selection problem? 19-2 IPOs and Adverse Selection Should owners of a private company contemplating an IPO (a

    asked by lori on May 2, 2013
  4. W.history

    Has anybody read Lord of The Flies?? Yes. Many of us have read Lord of the Flies. If you post your questions and your answers, we'll be glad to critique them for you. OK well, 1.Who is the leader of the choir boys? I think it is their teacher 1.Who is the

    asked by margie on October 11, 2006
  5. geometry

    Hello I have an assignment were I have to answer the following questions. I have posted the questions and their answers below can someone please read over them and see if what I wrote is correct and if it is not how do I fix it? Thank You ! 1.Who was

    asked by need help on August 19, 2011
  6. Science

    which one occurs more often lunar eclipse or solar eclipse? this is just a question i'v been thinking of

    asked by Savanna Reed on February 16, 2017
  7. Chemistry

    Ok, so in an when an endothermic reaction occurs, is it hot or cold? and why? Also what is it for an exothermic reaction? Thank you

    asked by K on May 31, 2013
  8. Chemistry

    X(g)+ 2Y(s) + 3Z(g) ⟶ 2L(g) + 4T(g) If this reaction occurs in one step, what is the order of this reaction? I am not even sure what this means. Could someone explain?

    asked by Summer on April 11, 2018
  9. Calculus

    If y = 18 - 3x, what is the maximum value of the product 2xy? A. -3 B. 0 C. 3 D. 6 E. 54 I found that the value of the maximum occurs at x = 3, but that the value itself is 54. Is E the answer?

    asked by Anonymous on April 23, 2017
  10. chemistry

    For the reaction that occurs in the voltaic cell Fe(s)|Fe^2+(aq)||Cr^3+(aq),Cr^2+(aq)|Pt(s) a) Determine delta G not b)Determine K

    asked by lynn on March 28, 2009
  11. Chemistry

    Ionic bonding typically occurs when a ______________ bonds with a ______________

    asked by Help on November 14, 2011
  12. Chemistry

    Ok, so in an when an endothermic reaction occurs, is it hot or cold? and why? Also what is it for an exothermic reaction? Thank you

    asked by K on May 31, 2013
  13. MATHS>>>PLEASE HELP

    find the maximum value of: 5+sinx-3cosx and state the value of x for which this maximum occurs

    asked by john peaterson on April 1, 2010
  14. social studies help???

    ive been stuck on these 2 questions for a while can you answer them ?? Farmers in the north face which problem that those in the southern region do not ? A. infrequent rain limits plant growth B. the worst pollution in the country is found here. C. they

    asked by Matt on January 18, 2014
  15. chemistry!!!!!!

    What structure is common to all aromatic hydrocarbons? You must be referring to the benzene ring, either separately or in combination with alkyl groups or other aromatic structures. UM.. SORRY DrBob222 BUT i THINK IT IS JUST THE benzene! i DID SOME

    asked by rosable on June 16, 2006
  16. Math

    I posted this problem the other day and someone answered it but when I checked my book I realized that I wrote the problem wrong. The answer is suppose to be 43/128 and I can't get it. Thanks (1/4)^2/(1/2-3/4)+ 3/2^3

    asked by Josh on January 23, 2010
  17. Math(Please Check)

    Problem: 4x/(x+2)-8/(x-1) What I Got: 4x^2-4x-16/(x+2)(x+1) *I had to simplify the rational expression No. At x=0, it doesn't check. The starting problem gives 8, your answer gives -8. I suspect a sign error somewhere. Probably in the denominator, the x+1

    asked by margie on March 5, 2007
  18. math

    Create your own word problem that uses a system of equations to solve. Your problem must include the following words: beach,hammock,dance,and troll.

    asked by Nick on February 24, 2011
  19. Algebra

    Slove each system by substitution. 4x = y - 1 6x - 2y = -3 I have already attempted this problem and couldn't figure out what I should do. I came out with 4x + 1 = 3x + 1.5 I think this looks right because our teacher told us that for this specific problem

    asked by David on December 14, 2010
  20. Science

    Madeira uses the water cycle to generate electrical power but this becomes a problem during the summer. What is the problem and explain the renewable energy solution.

    asked by Mileena on June 11, 2017
  21. Math

    I really need help with a quadratic question. So the problem is kx^2+[k+2]x-3=0 has roots which are real and positive. Find the possible values that k may have. The answer is -8+ √60

    asked by Barbra on September 17, 2016
  22. ALGEBRA 2

    Factor the given expression. Then use the zero product rule and the quadratic formula to solve the problem. There should be three solutions to the equation. x^3-2197 x= PLEASE, help me with this one problem I am stuck on! THANKS!

    asked by student on April 16, 2013
  23. Calculus

    I'm a bit confused about the average equations with integration. I need to solve this problem, and I think I'm supposed to use substitution, but I can't get it to work. The problem looks like this: z(t)=4tsin(t^2), [0,π^1/2] Any input?

    asked by Rachel on February 27, 2011
  24. SAT Math

    I don't remember what problem I struggled to understand... But it was something like this... There are 3000 numbers so how many of them are odd.. Something like that.. Please give me a problem like that and please teach me!!!! I hope you know what I am

    asked by Anonymous on December 7, 2013
  25. 5th math

    what is the average number of hot dogs sold? 12,12,13,17,21,22,22,22,22,30,32,37. please! show me this how to solve this problem? my last question for today.thank you very much without your help . it;s impossible to understand this problem.

    asked by pat on January 27, 2011
  26. Physics

    Write a projectile motion problem with the initial condition vi=15 m/s at 50° above the horizontal. Solve this problem for ∆x, max height, and time of flight.

    asked by Help on October 7, 2009
  27. ALGEBRA 2

    Factor the given expression. Then use the zero product rule and the quadratic formula to solve the problem. There should be three solutions to the equation. x^3-2197 x= PLEASE, help me with this one problem I am stuck on! THANKS!

    asked by student on April 16, 2013
  28. chemistry

    hi Dr Bob..can you please help me with this chemistry problem? I got problem dealing with the chemical formula.How i want to find the number of moles of 2g of Fe(NH4)2(SO4)2.6H2O???please help me.Thank you

    asked by tarra on August 15, 2010
  29. English

    1. What's your favorite subject? - My favorite subject is social studies. Why do you like social studies? - Because it's interesting and informative. 2. What subject do you like most? - I like Chinese letters most. What makes you like Chinese letters so

    asked by rfvv on March 15, 2016
  30. Anatomy

    Which of the following cells lacks mitochondria? a. neutrophil b. platelets c. basophils d. erythrocytes I just need some assistance and assurance that my answer is reasonable. I'm thinking that the answer is d. erythrocyte because it is not a true cell. I

    asked by Stephanie on October 29, 2013
  31. Algebra

    If a researcher wanted to know the mean weight (the mean is the sum of all the measurements divided by the number of measurements) of women in the U.S., the weight of every woman would have to be measured and then the mean weight calculated, an impossible

    asked by Kim on September 29, 2014
  32. AVID

    this is about cornell note taking...i'm done taking notes but i'm having trouble with the summary and the question area...i don't know what to ask ....for the question part...so can u help? The question area...put in a question that you think the teacher

    asked by Tally on September 7, 2006
  33. English

    How are you feeling? 1. I am delighted. 2. I am thrilled. 3. I feel overjoyed. 4. I feel disgusting? 5. I feel anxious. 6. I feel dissatisfied. 7. __________ 8. ___________ ----------------------------- Are the answers all correct? What other common

    asked by rfvv on March 2, 2017
  34. chemistry

    the Ka for acetic acid, HC2H3O2, is 1.8x10-5 at 25 deg. Celsius. In a .10 M solution of potassium acetate, which of the following are true? I. [HC2H3O2] = [OH-] II. [H+] = [OH-] III. [C2H3O2-] < .10 M a. I only b. II only c. III only d. I and II e. I, II

    asked by Anonymous on April 22, 2007
  35. math

    The statement is If a number is divisible by 2 and by 3, then it is divisible by 6 and vice versa. Is this statement true? Give an example or counterexample. I believe it is true but am stuck on the counterexample/example.

    asked by m on October 8, 2010
  36. Math

    How do you do this problem its a literal equation problem. S = 2πr2 + 2πrh

    asked by Carlos on September 18, 2016
  37. Algebra

    Given that f(x) = x^2 -3 and g(x) = 2x+1, find each of the follwing, if it exists. Problem 1 (f/g)(-root3) Problem 2 (g/f)(-1/2)

    asked by Laurie on June 11, 2009
  38. Math

    Can someone please work out the steps in solving this elimination problem. Thank you. The problem is x + 2y = -7 x - 5y = 7

    asked by Tyler on April 17, 2014
  39. math

    Solve x^2+2x-4=0 When i try to factor this problem out I cant get it to work. Is this a no solution problem

    asked by jen on April 11, 2010
  40. algebra

    Need help with this problem 8x-5y=20 5y-8x=-20 Please help me with this problem Solve the system of equations by graphing.

    asked by jspurlock on April 5, 2009
  41. Math

    i am still having problem with getting answer to problem 2 divided by a number equals 3/4. i need help please

    asked by Anonymous on March 10, 2016
  42. Solving rational inequalities

    problem #1 (1+x)/(2x+3) 2 graphically TIA please ignore this

    asked by Jen on February 7, 2007
  43. Glenview

    if you have 2 sets of 2 numbers in one math problem how do you get themode for that problem.

    asked by Brady on September 18, 2007
  44. Math 6th Grade

    2 1/4 r = 10 A. 4 3/4 B. 4 2/5 C. 4 4/9 I having a little bit of trouble on this problem. Can you show me how to solve the problem?

    asked by William Tran from Connexus on January 19, 2018
  45. math

    I've got a problem i need help on i need to find the proper comparison symbol the problem is xy yx

    asked by Amber on August 20, 2009
  46. math help

    This problem is a little different Simplify: ^5 sqrt symbol(x^7 y^4) How would I solve this problem?

    asked by Shawn on October 26, 2008
  47. algebra

    Describe how you know if an inequality is an “and” or an “or” problem. (use -3 < x+5 < 8). Also, how do you know if an absolute value question is an “and” or an “or” problem?

    asked by Anonymous on April 18, 2015
  48. Algebra1b

    Need help with problem -4x=8 Please show me how to work problem Well divide over the -4 so you can find x -4x=8 x= -2

    asked by Tim Helms on August 20, 2007
  49. Math

    Write a word problem using 7 groups. Solve the problem

    asked by Anonymous on December 8, 2015
  50. math

    How can I solve this problem by subtract (1) -2.3-(-8.8) How can I sove this problem by multiply (2) (1.3)(10)(-4)

    asked by PJ on September 18, 2008
  51. Algebra

    Write a story problem that is associated with this proportion, then solve your problem. 5/$21 =12/n

    asked by Kathy on March 8, 2018
  52. English

    I have to write a problem-solution essay and I can't think of a topic. Please help. It can be about any problem.

    asked by Briana on April 7, 2010
  53. maths

    Can any one help with the following please: Solve the initial-value problem: problem: dy/dx: 4(3cos(6x)-1)/1+2x-sin(6x) y=12 when x=0

    asked by Claire on February 8, 2011
  54. Algebra

    Given that f(x) = x^2 -3 and g(x) = 2x+1, find each of the follwing, if it exists. Problem 1 (f/g)(-root3) Problem 2 (g/f)(-1/2)

    asked by Laurie on June 11, 2009
  55. Basic Algebra

    I am having a hard time trying to figure out this problem, if someone could help me...I'd appreciate it: I have to solve the problem 7x-(6x+4)=4

    asked by Catherine on July 9, 2011
  56. Math

    Can you please helop with this problem? Solve this problem: -x/3 is greater than or equal to 2 Thank you

    asked by JulieAnne on September 7, 2010
  57. Algebra

    Given that f(x) = x^2 -3 and g(x) = 2x+1, find each of the follwing, if it exists. Problem 1 (f/g)(-root3) Problem 2 (g/f)(-1/2)

    asked by Laurie on June 11, 2009
  58. Math

    Write a story problem that is associated with this proportion, then solve your problem. 5/$21 = 12/n

    asked by Kathy on March 8, 2018
  59. Algebra help please.

    So, I carried this problem through: (0,5) M=-2 y=-2x+B 5=-2(0)+B 5=0+B 5=B y=2x+5 How do I write this in standard form? Did I do this problem right? Thanks!

    asked by Allyson on November 29, 2010
  60. math

    can someone let me know if this is the correct answer for this problem.. (3+8)+2=(8+3)+2- would this problem be consired Associatve?

    asked by trina on January 29, 2010
  61. Math

    I'm stuck on this 1 math problem. I've tried many ways to figure it out, but I can't. The problem is; 2(3x-5)>2x+6.

    asked by Janelle on February 14, 2008
  62. Algebra correction

    The last one which you were asking where the b came from I typed the wrong problem sorry. the problem is 49-a^2b^2 Is the answer: (7+ab)-(7ab)

    asked by Rae Rae on April 5, 2009
  63. environmental science

    why is sewage a problem and how have human activities contributed to this problem?

    asked by dan on November 20, 2009
  64. Chemistry

    Write mathematical equations that show how you will calculate the detected activity from the count rate due to background radiation and the sample of KCl and how you will determine the “true” activity of your sample from the detected activity. Use the

    asked by Annie on November 10, 2016
  65. Physics

    A baseball is his so that a travel straight upward after being struck by the bat. A fat observes that it takes three seconds for the ball to reach its maximum height. Find the balls initial velocity and the height it reaches. my professor showed a similar

    asked by Lauren on September 9, 2016
  66. to kill a mockingbird

    I'm reviewing for my test about the novel "To Kill a Mockingbird". There's this question I can't answer: 1. What are the generalizations (like stereotyping) made about black people? Who makes them? And how are black people affected by it? The same question

    asked by lily on October 28, 2009
  67. Calculus

    I'm having trouble trying to figure this problem out, I know the variables of the problem but I don't seem to get the right answer here is the formula that i'm using: A = P (1 + r/n)^n * t. Here is the problem: If Joe deposits $12,000 into an account that

    asked by Vesone on April 1, 2007
  68. Algebra

    Rationalize V stands for square root 3/V2 3/V2 x V2/V2 = 3V2/V2V2= 3V2/V4 =3V2/2 Answer 3V2/2 6V2/V3 6V2/3 x V3/V3 =6V2V3/V3V3 = 6V6/3= 2V6 My book gives these two examples. In the first problem you multiply the 2 in the denominator and get 4. It the

    asked by G on June 19, 2009
  69. math

    The set S has the property that if a is in S, then a squared + a is also in S. What set could be S? The answer is {1,0}. How do you get this answer? What numbers squared are itself? one and zero But what exactly is a set and what is a? I'm not sure,

    asked by June on October 17, 2006
  70. math 5TH GRADE

    write a story problem that represents each division expression.then solve the problem a. write a story problem that represents 528/24 divided

    asked by Arjel on November 2, 2010
  71. pre algebra

    Reiny can you please help with these 3 problem. 1. a1=-4;an-1-3 this is find the first five terms of the recursively defined sequence. Problem 2 and 3 is write the first terms of the explicitly defined sequence an=4n+2. problem 3 an=2(-3)n-1

    asked by mikey on November 2, 2017
  72. Science

    One light bulb in a string of lights goes out this causes all other lights in string to go out. This is example of A. Resistor B. parallel circuit C. Closed circuit***** D. Series circuit When a switch is turned from the off to the on position it is

    asked by BUBBLES on March 1, 2015
  73. math,correction

    Is this correct or no. I need help in a couple of problems can someone explain them to me. Problem#1 directions: Factor each expression a^2(b-c)-16b^2(b-c) My answer is: (b-c)(a-4b)(a+4b) PROBLEM#2 dIRECTIONS: Find a value for k so that 2x^3-kxy^2 will

    asked by jas20 on February 24, 2007
  74. science!

    this question is not a question but 20 questions. i appreciate if you review all my answers, but i wont provide an answer for the last question (most probably since i didn't finish answering it or typing it out since i only have an hour to do that). now,

    asked by anon on September 8, 2015
  75. algebra

    Ok my math assignments look something ike this... The formula I=prt gives the amouunt of simple interest I earned by principal p at an annual interest rate r over t years. Solve this formula for p. B. Find p if r=0.035, t=4, and I=$420. c. Writing.. That

    asked by K8T on October 28, 2008
  76. business Maths

    Bill Moore is buying a used Winnebago. His April monthly interest at 10% was $128. What was Bill’s principal balance at the beginning of April? (Use 360 days a year. Do not round intermediate calculations. Omit the "$" sign in your response.)

    asked by Ekanki on April 23, 2012
  77. spanish

    I want to write sentences about asking people questions. The questions have to do with the future, so in some sense I guess they are hypothetical. I want to know if that means that I use the (imperfect) subjunctive as hypotheticals--I think so, but I want

    asked by lee on February 5, 2012
  78. U.S. History (PLEASE HELP ME! I HAVE TO GO SOON!)

    Please help me answer the questions below. And yes, I have read the website links that you teachers provided for me. However, I am still struggling to answer these questions. 1. Name at least three key moments in the early 1800s when federal authority

    asked by Victoria on September 17, 2015
  79. Dynamic Earth

    In Egypt, the Great Pyramids of Giza face slightly east of true north. Explain why the pyramids might not line up with true north as builders likely intended. Assume that the builders 4500 years ago could determine directions accurately. I tried searching

    asked by Anonymous on January 5, 2011
  80. English

    Writeacher, I need your help to improve the questions below. I included part of the answers to make sense of the questions. Students should be able to develop their answers by writing ten-line paragraphs. 1) Describe the details of Winston Smith's life as

    asked by Henry2 on February 26, 2012
  81. Calculus- answer check

    A brand new stock is also called an initial public offering. This model predicts the percent overvaluation of a stock as R(t)=9t((t-3)^3/2.718) where is the overvaluation in percent and t is the time in months after the initial issue. Use the information

    asked by Liz on May 19, 2014
  82. Help Please!

    1) AMP -activated protein kinase (AMPK): Option A: is activated by both AMP and ADP. Option B: undergoes allosteric regulation. Option C: all of the choices are correct. Option D: adds phosphate groups to serines and threonines in other enzymes. 2) Which

    asked by Saki on September 12, 2016
  83. Cell Biology Help Please!

    1) AMP -activated protein kinase (AMPK): Option A: is activated by both AMP and ADP. Option B: undergoes allosteric regulation. Option C: all of the choices are correct. Option D: adds phosphate groups to serines and threonines in other enzymes. 2) Which

    asked by Saki on September 13, 2016
  84. Physics, Math, Electronics

    PROBLEM: A typical 12-volts battery is rated according to "ampere-hrs". A 70-Ampere-hour battery for example, at a discharge rate of 3.5-Ampere has a life of 20 hrs. Questions: a.) assuming the voltage remains constant, obtain the energy and power

    asked by Huck on September 23, 2009
  85. Chemistry-w/addition

    At elevated temperatures, SbCl5 gas decomposes into SbCl3 gas and Cl2 gas as shown by the following equation: SbCl5(g) SbCl3(g) + Cl2(g) (a) An 59.8 gram sample of SbCl5 (molecular weight 299.0) is placed in an evacuated 15.0 liter container at 182°C. 1.

    asked by Fred on January 15, 2011
  86. Math (advice)

    So in my calculus class we learned about implicit differentiation today. The professor would stop and ask if we had any questions, which was nice. I didn't ask any questions though, because I don't really like to ask questions during class. I didn't really

    asked by TayB on March 4, 2015
  87. science

    Define inductive reasoning. answering questions by analyzing specific observations and using them to come to a more general understanding doubting or not accepting conclusions or ideas until they have been adequately tested and verified answering questions

    asked by Bri on March 5, 2018
  88. science

    Define inductive reasoning. using general theories or principals to make predictions about more specific situations doubting or not accepting conclusions or ideas until they have been adequately tested and verified A? answering questions based on what can

    asked by Bri on February 22, 2018
  89. science

    Define inductive reasoning. using general theories or principals to make predictions about more specific situations doubting or not accepting conclusions or ideas until they have been adequately tested and verified answering questions based on what can be

    asked by Bri on February 23, 2018
  90. science

    Define inductive reasoning. using general theories or principals to make predictions about more specific situations answering questions by analyzing specific observations and using them to come to a more general understanding doubting or not accepting

    asked by Bri on May 4, 2018
  91. science

    Which of these is an example of a chemical reaction that occurs at a very fast rate? A: Rotting wood. B: An explosion. C: Photosynthesis. D: Iron rusting. I personally think it's A, but I'm not completely sure of my answer, which is why I referred to

    asked by boi on November 7, 2017
  92. English / Grammar Check

    Can you please tell me if this sentence is in formal language and the grammar is correct? In the novel Manhattan Transfer, manifestation of the fake social face occurs. The characters use masks, because they have trouble trying to find their real self.

    asked by Unknown on October 12, 2009
  93. economics

    Suppose you decide to elicit high CEO effort when and if good luck occurs by paying the bonus for $1 billion outcomes only. What criticism can you see with this incentive contract plan?

    asked by cindy on November 22, 2011
  94. chemistry

    The redox reaction below occurs in acidic solution. Balance it with the smallest whole number coefficients and determine the coefficient for H+. MnO4-(aq) + HNO2(aq) ---> Mn2+(aq) + NO3-(aq) when i did it..i got the answer as1...but im not to sure..help?

    asked by John on November 7, 2009
  95. Economics/Geography

    One of the stages of economic growth is capital intensive, where wealth is created through the efficient use of money and industrial manufacturing occurs. What latin american country fits into this stage & why?

    asked by Lindsey on November 23, 2011
  96. psychology

    When anxiety occurs in brief but very intense episodes that usually consist of a pounding heart, sensations of choking, shaking, and feelings of impending death, a diagnosis of ________ may potentially be made.

    asked by Anonymous on June 27, 2013
  97. chemistry

    Suppose that 0.450 of methane,CH4(g) , is reacted with 0.600 of fluorine, F2(g), forming CF(g) and HF(G) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released?

    asked by ricardo on October 24, 2012
  98. incentive contract

    Suppose you decide to elicit high CEO effort when and if bad luck occurs by paying the bonus for $1 billion outcomes only. What criticism can you see with this incentive contract plan?

    asked by Diane on December 15, 2011
  99. Money and Banking

    One year ago, you bought a bond for $10,000. You received interest of $400 at the end of the year, as well as your $10,000 principal. If the inflation rate over the last year was five percent, calculate the real return.

    asked by Jaye on October 26, 2010
  100. classical physics

    Question 14 Give reasons for the answers to each of the following questions: a) Can a normal force be horizontal? b) Can a normal force be directed vertically downward? c) Consider a tennis ball in contact with a stationary floor and with nothing else. Can

    asked by Pritesh on March 22, 2013