1. Fibonacci Numbers

    I posted the question several days ago and Mathmate helped to guide me along. I am just unsure if I do not understand what he is saying or if I did complete the problem right. I would appreciate any input. 1.618034 - -.618034 = 2.236068/sqrt 5 = 1.00000 I
  2. Pre-Calc

    This is the last question on my pre-calc homework, I looked through the textbook and have no idea how to do this. Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. (If an answer does not exist, enter DNE. Round
  3. math

    I am trying to solve a problem using Newton's equation, which is (-1/2)(9.8)t^2+ vot+ h. The problem says that a car rolls of a 120 foot high cliff. I know how to right the equation for this problem which would be (-1/2)(9.8 m/s) t^2 + vot + 37m. I am
  4. Math 141

    I am having trouble with this problem. perform the indicated operations and simpily the result as much as possible a) (3x - 2) (x^2 + 2x - 4 ) the answer i got so far is 3x^3 + 4x^2 -16x + 8. Am i done or i have to conitnue to simplify? if so, what do i
  5. life science

    An organism's ability to maintain steady internal conditions despite changes in its external environment is called biogenesis homeostasis osmosis respiration In an organism, a virus enters, and reproduces within, a(n) host cell infection interferon
  6. biology

    Why must plants have both mitochondrion and chloroplasts? Thanks in advance. I think it has something to do with the fact that chloroplasts convert sunlight into chemical energy. Does that sound right? One of the most widely recognized and important
  7. Math

    I need to find the equation for the following (compound interest): number of years: 12 initial principal: 10000 annual interest rate: 0.03 additional investment each subsequent quarter: 500 The value in 12 years is 43074.4088874
  8. interest

    Matty Kaminsky owns a new Volvo. His June monthly interest was $400. The rate is 8 1/2 percent. Matty's principal balance at the beginning of June, rounded to the nearest cent, is: (Use 360 days)
  9. Trigonometry

    a satellite camera takes a rectangular-shaped picture. the smallest region that can be photographed is a 4km by 6km rectangle. as the camera zooms out, the length 1 and the width w of the rectangle increase at a rate of 3km/second. how long does it take
  10. Trigonometry

    a satellite camera takes a rectangular-shaped picture. the smallest region that can be photographed is a 4km by 6km rectangle. as the camera zooms out, the length 1 and the width w of the rectangle increase at a rate of 3km/second. how long does it take
  11. Chemistry

    Can some please check my answers for the following questions? THANK YOU. 1)The chemical formula for aspirin is C9H8O4. What is the mass of 0.40 mol of aspirin? ANSWER: 45 g 2)The gram molecular mass of oxygen is. ANSWER: 16.0 g 3)What is the mass, in
  12. Windows Server 2003 HELP ASAP!!!

    Could please help me with some questions aswell as check the ones I've answered? Thanks! Which of the following media has the largest data storage capacity? a. Zip cartridge b. CD c. DVD (This is what I think the answer is) d. Jaz cartridge Why is hardware
  13. math

    Wondering the answers to these: Find the value of each of the following. Leave your answers as fractions where appropriate. [I did these myself but need to answer-check] a) log[base4](1/8) b) 10^(-10log3) c) 2log[base3](9) d) log[base3](3)^(2x) ans: a)
  14. US History

    'Take a poll of your classmates to find out what they trust about the federal government and what they mistrust about it. Compile the answers into a list. Then use the list to make a bar graph of the top five answers.' Since I don't have classmates (-.-) I
  15. english

    can you please tell me where did you find the answers to the questions:1)does hipaa affest the patient's access to his or her medical records? if so, ddescribe the eefct and the procedure for obtaining access.2)under what circumstances can personal health
  16. Help with Psychology Homework

    Your professor asks you to take a personality test. After taking the test, you read your description of your personality type, and are disappointed that the results do not seem to capture your personality at all. In fact, you think the test probably
  17. Linear Algebra

    Hello ! i try to solve Linear algebra 2 questions(but need them be written properly as mathmatical proofs) Having A matrice nXn: 1)proove that if A^2=0 the columns of matrice A are vectors in solution space of the system Ax=0 (x and 0 are vectors of
  18. Physics/Math

    What is the sum of the following four vectors in unit-vector notation? For that sum, what are (b) the magnitude, (c) the angle in degrees, and (d) the angle in radians? E: 6.36 m at +0.90 rad F: 4.52 m at -75 ° G: 3.31 m at +1.20 rad H: 5.4 m at -210 °
  19. statistics

    34. Two students (say A, and B) are challenged to solve a problem in statistics. Suppose that the probability that A will solve the problem is 40%, the probability that B will solve the problem is 55%, and the probability that A or B will solve the problem
  20. math

    12.(4pts) Solve the problem. Round your answer to the nearest tenth of a percent unless otherwise indicated. Sales of frozen pizza for a club fund-raiser increased from 500 one year to 575 the next year. What was the percent of increase? Solve the problem.
  21. chemistry

    A sample of 1.15g of lead (II) nitrate is mixed with 121mL of 0.104 M sodium sulfate solution. Part A Write the chemical equation for the reaction that occurs.
  22. Science plz help

    Explain the basic parts of a major theme in molecular biology: the pathway of DNA to RNA to proteins. Include a general idea of what occurs at each stage
  23. chem

    Consider the reaction that occurs on mixing 50.0 mL of 0.560 MNaHCO3 and 50.0 mL of 0.400 M NaOH at25oC. (a) Write a balanced net ionic equation for thereaction. (b) What is the pH of the resulting solution?
  24. Chemistry

    write a balanced nuclear equation for the reaction that occurs when uranium-335 absorbs a neutron and undergoes fission to produce 3 neutrons, bromine-65 and another nucleus.
  25. cheistry

    Write a net ionic equation for the overall reaction that occurs when aqueous solutions of hydrosulfuric acid and potassium hydroxide are combined. Assume excess base.
  26. Math

    I am doing a scavenger hunt assigned by my sixth grade teacher and the beginning problem is 7
  27. Algebra 2

    Please help me solve and find the excluded values for this problem. Also please show me the work for this problem I want to learn!@!@!. 49X^6+7X^7/28X^8
  28. Math

    When I did the following problem, I got -12 as my answer. It is an evaluation problem, It looks like this: Evaluate: -2^0[-2^0-2^2-(-2)^3-2](-2^0-2)+x-xy When x= -3 and y= -4 I am unsure if this seems to be correct. If I made a mistake can someone please
  29. 8th grade algebra

    need ideas of personal experiences to create a mathematical story problem using 4 pictures of this experience and solve the problem.
  30. Environmental

    I have to write a paper on an environmental problem and expand on a (or two) solution to the problem... any ideas? Anything specific would be great since I'm at a stand still...
  31. To JJ

    Your problem is somehow intertwined with another and I can't post an answer there. Solve the problem by applying the dilution formula of mL1 x M1 = mL2 x M2
  32. pre algebra

    I have a problem and I would like to know how to work out the problem to get the answer. Write an algebraic expression for each phrase product of m and n -2 What are the steps in working this out?
  33. Math

    I need help with this problem: Write an equation that will give the slope of f(x) at every point: f(x)= -4x^2-17x+5.6. It seems basic but I am having trouble understanding what the problem is asking for.
  34. Math

    Hello I am having trouble with a pre-calculus problem. The problem is ln|Sin2X-CosX-1|=0 if you could help by listing the steps to solve that would be great! Thanks!
  35. Basic Math

    I need help adding fractions with different denominators. Here is the problem... 1 - 1/2 + 1/3 - 1/4 + 1/5 - 1/6 I can see that the demoninators increase. Since they are both addition and subtraction, how do I do this problem? Thanks, Walter, New York.
  36. 8th grade algebra

    need ideas of personal experiences to create a mathematical story problem using 4 pictures of this experience and solve the problem.
  37. government

    We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness. — That to secure these rights, Governments
  38. psychology

    individuals who use problem-focused coping will deal with a problem or stressor by
  39. math

    Show how to make one addend the tens number. Problem: 22+49= 71 new problem.
  40. Math

    can you help me on this problem;; here is the problem, solve the equation. remember to gater like trems. FIRST!! k-5 / 6 = -7 ?
  41. Math! Please help!

    This is an inequality problem/question. I dont know if I'm right in solving this problem: 15 ≤-k/4-9 (k/4 is a fraction) Please help! I got 5.25 ≤k
  42. Algebra

    Write a story problem that is associated with this proportion, then solve the problem. 15/16= n/100
  43. Math

    can you please check this problem for me, and if I happen to get it wrong. explain it? thank you =]]. -6x=54 this is the problem. -6x =54 +6 +6 x = 48 ?? is this right please respond. =]]
  44. Math

    Write the subtraction problem as an equivalent addition problem. Explain. 46 - 15
  45. Precalculus

    A geometric series has t1 = 3 and r = 2. If tn = 96. What does n equal in this problem? What is the special name given to the terms between 3 and 96 in this problem?
  46. algebra

    3x^2-5=16 solving equation I see no one is answer ansy problem could some please I need this problem tonight.
  47. Gov

    what was the overall problem with the Articles of Con.? give 4 examples that illustrate the problem
  48. Math

    The problem states that "5 to 8 is as 15 to w." I'm having some trouble solving this because I am unsure of what the problem is asking me to do. Some help would be appreciated. Thank you! :)
  49. algebra

    I forgot to ask my teacher how to do this problem because I got it wrong..so i need someone to help me do this problem. I don't understand it! 3(2+3x)=22-5x
  50. Algebra 2

    Can you please help me simplify this problem? It probably is an easy problem but I do not understand the way my teacher taught it. 1/ [1+(1/ x-2)]
  51. science

    in the following problem, one of the metric SI punctuation rules were broken, state the problem: 67 km
  52. Math

    How will I work this problem? Find the functional values requested in the problem. h(x)=3x-4 (a) h(0) = (b) h(-10)=
  53. ss

    The british army was trapped at yorktown by? a.an army led by friedrich von stueben b.a freet of spanish warships c. a fleet of french warships d. guerella fighters led by francis marion. Isnt it C I want this paper to be correct in all the answers as much
  54. Physics

    Hello! I live in Mexico, and I have a couple of questions I asked on Y answers, both English and Spanish, and have gotten no reply, and I need to turn this in for my bimonthly exam in physics this Monday. I need to calculate the volume and surface area of
  55. stats

    An athletic director found that 31% of the football players have an A average in school. If 2% of the students at the school play football, what is the probability that a student chosen at random will be a football player with an A average? suppose a
  56. Finance

    You want to purchase a new condominium that costs $287,500. Your plan is to pay 25 percent down in cash and finance the balance over 15 years at 3.75 percent. What will be your monthly mortgage payment including principal and interest? $1,568.07 $1,333.33
  57. Spanish 2

    Re-write the sentences in Spanish. Are my answers correct? Thanks! :) 1.) I used to eat. 2.) Clean!! 3.) You (informal) have seen the movie. 4.) I practiced yesterday. 5.) When I was young, I played soccer. My answers: 1.)Yo solía comer. 2.)Limpio!
  58. Spanish

    Can someone please check if my answers are correct? combina las palabras lógicamente. 1. la langosta 2. la salchicha 3. el ají 4. el caldo 5. el sacacorchos 6. hornear 7. los ingredientes 8. la sal 9. el durazno 10. el aderezo a. el vino b. la toronja c.
  59. English

    Can you please check if the following sentences are possible? Thanks in advance. 1)Sterne breaks the rule of the conventional biography since Tristram’s birth occurs only in the third episode. 2)Furthermore, he doesn’t follow a story-line since the
  60. math

    So I don't have a question I just wanted to wish all of the Jiskha tutors a very Happy Thanksgiving! All of the Students that use this site really appreciate all of the help. Thanks you all for checking our questions, and explaining materials to us when we
  61. Philosophy

    Martin Luther King, “Letter from Birmingham Jail,” draws from the thought of Thomas Aquinas in saying “an unjust law is a human law that is not rooted in eternal and natural law. Any law that uplifts human personality is just. Any law that degrades
  62. For -Ms Sue

    Claim: the lateral (side ) surface of any area of any cylinder can is larger than the circlar surface area of its bottom. Which of the following is an example showing that the claim is false? a. a can with the diameter of 5 inches and height of 10 inches
  63. trig help much appreciated! :))

    1. Find the complete exact solution of sin x = . 2. Solve cos 2x – 3sin x cos 2x = 0 for the principal value(s) to two decimal places. 3. Solve tan2 x + tan x – 1 = 0 for the principal value(s) to two decimal places. 4. Prove that tan2  – 1 + cos2 
  64. Organic Chemistry

    Which statements are FALSE about selecting a solvent for recrystallization? (Select all correct answers.) Any solvent can be used for recrystallization as long as the compound dissolves in it. The compound should exhibit a high solubility in the solvent at
  65. math!!

    Solve each problem 3. 2/3 = 1.2/x x = 18
  66. Problem Solving

    Nick is chief engineer in a phosphate fertilizer plant that generates more than 1 million tons per year of gypsum, a waste collected in a nearby pile. Over many years, the pile has grown into a mountain containing 40 million tons of waste. There is little
  67. Problem Solving

    Nick is chief engineer in a phosphate fertilizer plant that generates more than 1 million tons per year of gypsum, a waste collected in a nearby pile. Over many years, the pile has grown into a mountain containing 40 million tons of waste. There is little
  68. history

    Ok i am having trouble with my world history homework questions........Please HELPPPP!!!!!!!!!!!!!!!!!? Ok these are the three questions i am having trouble with: 1. What are some of te characteristics of the "Renaissance man" and "Renaissance woman"? 2.
  69. Technology: ms.sue, bobpursley

    24. From a technological viewpoint, explain why farming has gotten less labor intensive over the last hundred years. You two helped me on this yesterday, and I combined your answers and added my own to it. Please let me know if it is okay. 24. Farming has
  70. Physics

    I'm learning about Newton's Laws of Motions and I'm having trouble understanding these questions: "A rear-end collision between a soft-drink truck and a car occurs. The truck driver claims the car backed into him, while the auto driver claims that the
  71. probability

    Consider a medical screening excersis for a disease that in the case that indicte that 5 people of 1000 people screenedhave the disease.the screening process is known to give a false positive 3% at times and a false negative 1% at times.what is the
  72. Algebra

    Ok a few questions I want to check answers on - -x+4-9x+3¡Ý 7(x-2) -10x+7¡Ý7x-14 -10x-7x¡Ý7x-7x-14 -17x¡Ý-21 -17x/-17¡Ý-21/-17 x¡Ý21/17 or x¡Ü21/17 ?? One I do not understand at all - The linear equation y=3x-5 graphs as a
  73. English

    1. What do people all around the world love doing? - They love eating street food. 2. How is street food? - It looks good and tastes delicious. 3. What is New York City like? - It is a busy city. 4. What's there on almost street corner? - There is fast
  74. Physics

    Which of the following statements for magnetism are true? (Give ALL correct answers) A) B does work on a charge only when the charge has a velocity component perpendicular to B. B) B acts only on charges at rest. C) B does work on a charge only when the
  75. math

    If A, then B is equivalent to If not B, then not A Not (A and B) is equivalent to not A OR not B Not (A or B) is equivalent to not A AND not B Can you give an equivalent statement to 1. If an Iowa farmer does not grow corn or beans, then he grows alfalfa.
  76. Chemistry

    Given the following balanced equation: 2Na + Cl2 ---> 2NaCl A.List each element on the reactant side and each element on the product side and assign the correct oxidation number to each. B.Identify which element is oxidized in the reaction and which is
  77. REDOX Balancing equations

    Al+NO3^-1-->Al(OH)4^-1+NH3 I am supposed to balance this reaction and label the reduction/oxidation reactions and oxidizing/reducting agents I have my specific steps to solving this but when I get to step 2 I do not see how I can split these into 2 half
  78. Inorganic chemistry

    The following reaction occurs spontaneously. 2H+(aq)+ca(s) Ca2+(aq)+H2(g) write the balanced reduction half-reaction
  79. Philosphy

    DuBois claims that this occurs when the stronger members in society do not protect the weaker members:
  80. science

    What kind of chemical bonding(chemical elemants) occurs in bricks, elastic, and rope
  81. Physical science

    Consider the following reaction that occurs at STP:what mass of N2 gas is needed to react with 12g H2 gas?
  82. PLS HELP URGENT

    Only one of the following reactions occurs. HCl + F HF + Cl For the one that does occur which side is favoured? Explain WHY the other reaction will not occur.
  83. science

    Explain how a mutation in an individual's DNA occurs, and describe the effect it may have on the individual's traits.
  84. Science

    Explain how a mutation in an individual's DNA occurs, and describe the effect it may have on the individual's traits.
  85. math

    if the probability that an event E occurs is 1/p+1, then find the probability that E does not occur in terms of a simple fraction
  86. physical science

    when a physical change in a sample occurs which of the following does not change? a. shape b. temperature c. volume d. composition d?
  87. math

    if the probability that an event E occurs is 1/p+1, then find the probability that E does not occur in terms of a simple fraction
  88. math problem solving

    the digit 5 occurs two times in the population of fairbanks. what is the value of each 5? explain your answer fairbanks- 35,252
  89. Chemistry

    Can somebody check my answers? I Failed this test one time already. I do not want to fail it again. 1. When a pair of electrons is shared between two atoms, a covalent bond is said to have formed. Most often, the pair is formed A. by excess valence
  90. Analytical chemistry

    I did the next problem, i don't have the results for it and i just want to know if i calculated the mass for Fe2O3 the right? A sample is a mixture of iron oxides (Fe2O3 and FeOOH). It's known that at 200°C this reaction occurs: 2FeOOH(s)-> Fe2O3(s) +
  91. History

    So I was reviewing my online lecture for school, and I noticed something the teacher had said. The Plains Indians planted seeds in the Spring, hunted buffalo and small game in the summer, harvested crops and made sure there was a good food surplus for
  92. Math

    a deck of cards haa 52 cards. in it has 4 of {aces,2,4,3,4,5,6,7,8,9,10,queens,kings,and jacks well you know} what is the probability of getting 4 aces at a time? express your answers as a common fraction. ps. the answers 4/52 or simplfied is not the
  93. science

    At a construction site a pipe wrench struck the ground wiht a speed of 24 m/s. a) From what height was it inadvertently fropped? b) How long was it falling? for a) the book said it was 29.4m and for b) it was 2.4s but I keep on getting the wrong answers.
  94. Physics C

    A rifle is aimed horizontally at a target 100 ft away. The bullet hits the target .78in below the aiming point. a) What is the bullet's time of flight? b)What is its muzzle velocity? The answers should be a) 63 m/s b) 1.6 X 10 exponent 3 ft/s I don't know
  95. History

    I need to come up with 3 questions to ask farmers about new machinery and farming techniques that helped them farm the Great Plains. I know the new machinery: a plow that made several furrows at once. Harrows, equipped with spring teeth to dislodge debris
  96. Math

    What is the difference between "Give your answer correct to two decimal places." and "Round your answers to two decimal places." ?? Are they the same thing or do the answers differ?
  97. Chem202 - for DrBob222

    Dr. Bob222: There is a problem you answered .100M HClO2 titrated with .080M NaOH I can work the problem many times but I am getting 7.30pH and the answer says 7.38 using quad. I used quad and still get 7.30. I also do know how you go from the
  98. drbob222 math,correction

    i made some corrections for the previous postage can you check those when you get a chance please. Also for this one: my options of answers are: A)2y + 6/3 B)3x- 6 /2 C)2 + 2y D)2/3y + 6 Directions: Solve for x: 3x - 2y =6 3x - 2y = 6 +2y +2y 3x = 6 +2y --
  99. Chemistry

    What chemical occurs to the red cabbage red for acids and blue for bases.
  100. MATH

    How do i solve the pair of simultaneous equations y=4-2x y=2x^2-3x+1 ?? how do i find minimum value of 2x^2-3x+1 and the value of x for which the minimum occurs???