1. physic

    The velocity vector V1 has a magnitude of 3.0 m/s and is directed along the +x-axis. The velocity vector V2 has a magnitude of 2.0 m/s. The sum of the two is V3, so that V3 = V1+V2 true or false for each question The magnitude of V3 can be -3.0 m/s The
  2. Chemistry

    (a) The total mass of carbon contained in fossil fuels that was burned in the world from 1750 to 2000 was estimated to be 2.9 x E14 kg C. The amound of carbon released as carbon dioxide from agricultural expansion and deforestation over this period is
  3. Maths (Trigonometry)

    Raylene who was involved in an orienteering competition. The first two legs of her triangular course are: • 1.2 km on a true bearing of 200 ° • 2.3 km on a true bearing of 320 ° . To find the shortest way back to the start/finish
  4. Pre calculus, vectors

    A straight river flows at a speed of 20km/h. A boater starts at the south shore and heads in ths direction of 70degrees from the shore. The boat has a speed of 20km/h in still water. Find the true speed and direction of the boat.
  5. statistics

    if young men thought that their own level of muscle was about what women prefer, the mean "muscle gap" in the study would be 0. we suspect that young men think women prefer more muscle than they themselves have. a)what is the value of he test statistic Z?
  6. statics

    A manufacturer of golf equipment wishes to estimate the number of left-handed golfers. How large a sample is needed in order to be 90% confident that the sample proportion will not differ from the true proportion by more than 2%? A previous study indicates
  7. Computer science

    1.Fraction that has a numerator and a denominator. The class should have methods that can: (a) add and subtract two Fractions together and return the resulting Fraction, (b) create a duplicate of itself and return the duplicate, (c) see if another Fraction
  8. Math

    The scale on a map is 1 in: 4 miles. Find the actual distance in miles for each length on the map. 1/ 2 in. Answer: d=8 2/ 7.2 in. Answer: d=288 3/ 3.5 in. Answer: d=140 4/ 11 in. Answer: 44 Write the ratio as a scale in simplest form. 3cm\15cm Answer: 1/5
  9. Science

    4. Which of the following statements is true? A. Biodiversity provides additional resources that raise the carrying capacity of an ecosystem B. Biodiversity increases an ecosystems ability to withstand changes C. Biodiversity makes an ecosystem more
  10. Physics

    A satellite has a mass of 5750 kg and is in a circular orbit 3.6 * 10^5 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.20 * 10^6 m. What is the true weight of the satellite when it is at rest on the
  11. Psychology

    Which one of the following statements about the gate-control theory is true? Pain impulses create a gate leading to the brain. The brain is capable of generating pain on its own. The gate closes when pain messages go to the brain. Damage to small nerve
  12. Science

    Table salt has the chemical formula NaCl. Table sugar has the chemical formula C12H22O11. Which of the following is true? (1 point) Both compounds are held together by chemical bonds. Both compounds have the same density. Both compounds react with water.
  13. Science

    Table salt has the chemical formula NaCl. Table sugar has the chemical formula C12H22O11. Which of the following is true? (1 point) Both compounds are held together by chemical bonds. Both compounds have the same density. Both compounds react with water.
  14. Science

    Plz Correct me!! Table salt has the chemical formula NaCl. Table sugar has the chemical formula C12H22O11. Which of the following is true? (1 point) Both compounds are held together by chemical bonds. Both compounds have the same density. Both compounds
  15. English

    Hello. Will you please help me with the use of articles in English? 1)The situation is as follows: I heard something bad about a person I know, for example my friend Anna, and I want to say it's not true, which is correct then "it's an unfair accusation of
  16. Stats

    A manufacturer of golf equipment wishes to estimate the number of left-handed golfers. How large a sample is needed in order to be 90% confident that the sample proportion will not differ from the true proportion by more than 2%? A previous study indicates
  17. Hey guys, Could you help me check some art questio

    Here are a few answers I need to be checked, I hope thats Okay :) Most street artists make commercial art Yes No*** Video footage Is now a standard part of the news True False*** All of the following would be part of a franchise branding Except Creating a
  18. Accounting

    Use the following information to answer questions 8-10. The Boxcar Corporation has paid a total of $1 million in cash bonuses to its officers for 8 consecutive years. The board’s policy requires that, for this bonus to be paid, net cash provided by
  19. history

    Which of the following is true of the Supreme Court's decision in Brown v. Board of Education of Topeka? [A. It declared that segregated schools were inherently separate and unequal.] B. It established that all citizens should have access to public
  20. English

    Read the thesis statement that follows. Identify why it is a good thesis statement. Government should provide health insurance because the costs of uninsured people damage the economy. A.It is interesting B.Everyone already knows it’s true. C.It mentions
  21. History

    The Renaissance positively impacted education in Europe (1). During the Renaissance educational methods changed from passive rote recitation to active analysis (2). Advancements in education spread literacy and led to new innovations and knowledge (3). In
  22. adverbs

    Which Statement about adverbs is true? A. Adverbs modify nouns and verbs B. Adverbs modify adjectives and verbs **** C. Adverbs always answer the question why D. Adverbs always end in -ly
  23. Calculus

    F(x) = 1-x and g(x) = 1/x These functions have the property that f = f^-1(inverse) and g = g ^-1. That is, the inverse of f is equal to itself and the inverse of g is also equal to itself. Take the composition of each function with itself to show that this
  24. Math

    Jorge wants to bring 150 cookies. How much flour will he need to make 150 cookies? if I divide 60 into 150 = 25. will I need 25 cups of flour to make this true?
  25. math

    A student claims that every prime greater than 3 is a term in the arithmetic sequence whose nth term is 6n + 1 or in the arithmetic sequence whose nth term is 6n - 1. Is this true? if so, why?
  26. math

    insert parentheses to make each statement true. 25 ÷ 5 -4=25 7x4-4 ÷ 2 = 26 3+5 x 2-10=6 insert parentheses in the expression 6+10x2 so that a. the expression equals 32 b. the expression equals(12+1) x 2
  27. Math(1 question plz help thanks!=D

    if two integers have the same absolute value which of the following is true about the integers? A. they must be the same integer B. they must be the opposite integer*** C. they could be the same or opposite integer (plz help my answer is with the***sign
  28. Geometry

    Quadrilateral ABCD is a parallelogram. If adjacent angles are congruent, which statement must be true? A. Quadrilateral ABCD is a square. B. Quadrilateral ABCD is a rhombus. C. Quadrilateral ABCD is a rectangle. D. Quadrilateral ABCD is an isosceles
  29. easier english.

    can someone translate this into easier english for me? "Can you see any parallels between this dictum for Muslim women and the very different ways that contemporary American women are encouraged to think about aspects of their physical appearance?" Hi
  30. Year 8 maths assignment - Algebra

    The question on my assignment I'm having trouble with is: 18xy squared + 12x squared y cubed I have to factorise it, and it doesn't work out. If anyone knows how to do this question, please help! I suggest that you go to some-one that know's what there
  31. Technology

    1. Which of the following is NOT an example of a objective question? A. multiple choice B. essay** C. true/false D. matching 2. Why is it important to recognize the key word in an essay question? A. It will provide the answer in an essay B. It will show
  32. Chemistry

    Which of the following is true regarding the structure of atoms? A. The amount of charge on a proton is greater than the amount of charge on an electron. B. Isotopes of an element differ in the number of protons in the nucleus. C. The mass of each electron
  33. Math(Please Help Assignment Due)

    Consider the following pattern involving fractions: 15/20=3/4, 15-3/20-4=12/16=3/4 18/15=6/5, 18-6/15-5=12/10=6/5 1.) Make a conjecture about the pattern. Show that the conjecture is true for another example. 2.) Explain how inductive reasoning can be used
  34. Science Please Help

    Which of the following statements are true A-Biodiversity provides additional resources that raise the carrying capacity of an ecosystem** B-Biodiversity increases and ecosystems ability to withstand changes C-Biodiversity makes an ecosystem more difficult
  35. English

    Individuality is the sum of qualities that characterize and distinguish one person from another. This is what defines a person. Disregarding one’s individuality means not taking one for oneself. In Nathaniel Hawthorne’s novel, The Scarlet Letter, he
  36. Physics

    The Circuit contains a resistor R1, Resistor with R2 and an inductance L in series with a battery of emf ε0=V0 . R2 having a switch in parallel, the switch S is initially closed. At t = 0, the switch S is opened, so that an additional very large
  37. algebra

    I know its true but why? When you multiply a whole number by a whole number the result is a larger number. When you multiply fractions the result is a smaller number.
  38. 9 gr

    3. Which statement is true about the following set of data? 18, 17, 21, 24, 21 a.The mean is greater than the median. b.The median is less than the mode. c.The mean and median are the same number. d.The median and the mode are the same number.
  39. Government

    What is true: A.Liberals want to keep status Quo B.Moderates want to keep status Quo C.Reactionaries will do anything to keep status quo, or D.Status quo does not change...
  40. physics

    a person standing on a moving escalator is moving relative to another person standing on the escalator true or false?
  41. Geometry

    6. Which of the following facts, if true, would allow you to prove that line l and m are parallel? A.angle m + angle 4= 180 B. angle 1 = angle 8 ** C. angle 6+angle 3 = 180 D. angle 7= angle 6
  42. math

    A true-false test consists of 15 items. (a) If Chris does not study at all and guesses each and every item in the test, describe the probability model for the number of correct guesses. (b) What is the probability that Chris gets 80% or more for the test?
  43. physics

    What is true about microscopic properties of an object? 1) They are just small versions of the macroscopic properties. 2) They are the properties of particles that make up the object. 3) They are the average of many properties of individual particles. 4)
  44. Business

    If a pre-employment test (such as personality tests/aptitude test etc)is reliable can it can still be discriminatory? I know that tests should be reliable and valid as well as a test should not be discriminatory...but I feel that the answer is true because
  45. Business

    Please edit my answers below the questions for correct sentencing In the following statement, a business owner attempts to explain and justify his slow growth in his business. I limit my growth pace and every effort to service my present customers in the
  46. allied health part 2-21

    which of the following statements about risk management is true? a. risk management is unique to the health care industry b. risk management is controlled and managed by hipaa regulations. c. risk management is concerned with reducing exposure to legal
  47. algebra 1

    Which statement about the product is true? 7.56*6.7 ̅? a)the product is irrational b)the product is rational** c)the product is neither rational or irrational d)the nature of the product cannot be deterined
  48. Science - Check my answers

    1. Which of the following statements best defines tides? when waves get bigger because of an approaching storm the rise and fall of ocean water that occurs about every 12.5 hours **** the rise of ocean water that occurs 12 times a day a giant wave that can
  49. history

    Judaism Christianity Islam Which religion belongs to each of the statements below: Using the three statements below, state the religion that would make that statement true. Each religion will only be used once. In 2-3 sentences, use information from the
  50. biology

    1. how does the density of ice compare to that liquid water and why is that property important to aquatic oranisms a. the density of ice is higher than that liquid water, which means that ice forms from the bottom of lakes upward , protecting aquatic life
  51. AP world

    Which of the following statements about early Amerindian peoples is true? a economic and political rivalries led to nearly constant conflict among various groups b they relied heavily on the wheel and an impressive network of roads c seafaring knowledge
  52. Grammar,

    Please can you tell me if these are correct. Identify the noun clause. I put brackets around them. 1. (How the secret leaked out) was not immediately apparent. 2. (Where the stall has moved to) has not been ascertained. 3. The invited guests said (they
  53. Math

    A media company divides 1 million copies of a new music CD into 100 equal groups before sipping the CD to 100 stores .how many CDs is the company shippi ng to each store? Please help me , i don't know the answer. Write the value of the underlined digit.
  54. Business

    I have an assignment for a Business Introduction course.. Out of the 25 questions there is only one i don't really understand.. If anyone can help i will be more than grateful. Q. Regarding differences between consumer-focused marketing and B2B marketing,
  55. physics

    is the following statements true or false + write a correct version of each false sentance below: 1. usually, the cooler a liquid or gas is, the denser it is. 2. if you only want a small volume of hot water, you should place the immersion heater near the
  56. Sociology Multiple choice

    Which of the following is(are) true of culture? a. culture would be significant whether people held it in common or not b. despite the cultural diversity that exists in American society, there are symbols, language patterns, belief systems, and ways of
  57. Business

    how are data and information used within the human services organizations to support organizational planning? How can you plan for anything without having any data/information on the topic? The same is true of any organization. You need to know what your
  58. Law and Ehtics in Medicine

    Please cheeck my answer thanks :) Dr. Smith is sued for malpractice. When called to give testimony at trial, he will be allowed to testify about the patient's care. I think that's True The other choices were... be barred for revealing medical information
  59. Biology

    Please check my answer: Which of the following statement is not true? 1). Mitosis produces new nuclei with exactly the same chromosomal endowment as the parent nucleus. 2). Mitosis may occur without cytokinesis 3). Mitosis and cytokinesis are required for
  60. Math Please Help

    The graph above shows the number of students receiving A's in each grade at Bridgeport Middle School. Which statement is true? A: The scale on the first graph does not distort the lengths of the bars. B: The second graph shows greater changes in the number
  61. Physics

    a rock is thrown straight up which of the following statemetns concerning the net force acting on the rock at the top of the path is true? assume air resistance is negligible. a)it's equal to the weight of the rock b) it is instantanwously equal to zero c)
  62. English

    All of the following statements about the setting of a story are true EXCEPT: a) Sometimes the setting and the plot of a story cannot be separated. b) The setting is usually not vital to the reader's understanding of the story. c) The description of a
  63. Geography

    [THESE QUESTIONS ARE NOT THE SAME AS MY PREVIOUS POST) I am working on my take home quiz questions now...and i am not sure about the answers of the folowing questions...can anyone please help me to check???? THANKS A LOT!!!! (The "*" represents the answer
  64. Calculus Please Check my answers

    f is a function that is differentiable for all reals. The value of f ′(x) is given for several values of x in the table below. The table: x -8,-3,0,3,8 f'(x)-4,-2,0,4,5 If f ′(x) is always increasing, which statement about f(x) must be true? f(x)
  65. us history

    Which of the following is true of the Spanish-American War? A. Racial tensions were suspended for the duration of the war. B. About one in ten American soldiers were black. C. Black soldiers referred to black Cubans as "Smoked Spaniards." D. The black
  66. Statics

    An apple grower is trying to produce larger fruit by using a new fertilizer. The usual fertilizer produces fruit with a mean diameter of 8.7 cm. Two new fertilizer brands are under consideration, with the following experimental results: BRAND A: n = 10,
  67. College Physics

    Which one of the following statements about a thermodynamic engine is not true, i.e., which one of the statements is false? 1)The internal energy is always the same at the beginning and at the end of one cycle. 2)The absorbed and the exhausted heat have
  68. history

    Which of the following is true of the Spanish-American War? A. The black soldiers who fought had gained experience and distinction during the Indian Wars. B. Racial tensions were suspended for the duration of the war. C. About one in ten American soldiers
  69. History

    Hi My question is I have in my text book it said that during the night of the 30th of June 1934 Hitler had his own personal bodyguards who murdered the leading members of the Nazi party who opposed Hitler. My question is How can leading members of the Nazi
  70. APUSH PLZ HELP!

    In 1850 the South was in good political shape. Each of the following descriptions explains why that was true except? A. Zachary Taylor, the president, was a southern slave-owner B. The majority of the presidential cabinet were southerners C. Most of the
  71. Please help me

    Suppose a customer brings a gold bracelet to a jeweler and asks for it to be changed into a gold ring. Which of the following is true? (1 point) The physical property of color will be changed. The bracelet will go through a chemical change. The composition
  72. Solve Inequality

    Solve the inequality. Express your solution using interval notation and please show all of your work. x(x + 6)(8 – x) >= 0 I need help, I guess I'm not understanding the interval notation portion. I know, that when 0 <= x <= 8 and x <= -6
  73. Static Friction..I really Have no Idea

    A 0.40 kg block rests on a desk. The coefficient of static friction is 0.20. You push the side of the block but do not have a spring scale to measure the force you use. The block does not move. Which statement is true about the force of static friction? It
  74. English-Pride and prejudice

    How does Elizabeth’s understanding of her father’s true nature change and deepen in the course of the novel? Why is this a necessary part of her growth? Thank you for using the Jiskha Homework Help Forum. Here are some links to visit: 1.
  75. English-

    I posted earlier but i wanted to added something... I need have to find a song that share similar views as Transcendentalists Here are some views of the Transcendentalists: -Intuition -they think we can understand ourselves through nature. -
  76. Statistics

    75 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of 10.2 pounds and a standard deviation of 2.9 pounds. What is the 95% confidence interval for the true mean weight of all packages by the parcel
  77. math

    Which of the following is not a true fact about angles? A) The measure of an angle depends on the amount of rotation. B) Angles depend on the length of the rays that form the angle. C) All right angles are equal in measure. D) All straight angles are equal
  78. Physical Science

    A block of iron is transported to the moon . Which of the following is true 1) Both its mass and weight remain unchanged. 2)Its mass remains the same, but its weight decreases 3)both its mass and weight decreases 4)Its mass decreses, but it weights remain
  79. SCIENCE

    Which of the following is not true of a scientific theory? A. being able to make personal decisions about science related issues. B.being able to evaluate scientific information. C.being able to rely on opinions about science related issues. D.being able
  80. culture ethnics

    how do you think an average american's perceptions of each group are created? Thank you for using the Jiskha Homework Help Forum. If I understand your question, most people tend to "stereotype" other ethnic groups. Often it is what they see in the movies,
  81. Physics I

    A ball has been thrown upward. Which of the following is true while the ball is on the way up, after the ball has been released, assuming no air resistance? a. The acceleration is upward. b. The acceleration is zero. c. The ball's speed increases by 9.81
  82. Chemistry

    Consider equation 3A+B=C+D. You react 4 moles of A with 2 moles of B. Which of the following is true? 1) Limiting reactant (L.R.) is one with higher molar mass 2) A is L.R. because you need 6 moles of A and have only 4 moles 3) B is L.R. because you have
  83. Chemistry

    Consider equation 3A+B=C+D. You react 4 moles of A with 2 moles of B. Which of the following is true? 1) Limiting reactant (L.R.) is one with higher molar mass 2) A is L.R. because you need 6 moles of A and have only 4 moles 3) B is L.R. because you have
  84. Math

    If line A is a perpendicular bisector of MN, then which of the following statements is NOT true? 1)line A and MN intersect at a right angle 2)line A splits MN into two congruent segments 3)MN splits line A into two congruent segments 4)line A intersects MN
  85. early childhood

    Which one of the following statements about literary elements is TRUE? A. The author should end the book with a closing comment to ensure that the story’s moral is conveyed. B. Setting is a backdrop that can be changed without affecting the plot. C. Good
  86. Can you help me make my thesis sound clear & good

    In the short story, "how much land does a man need," the author Leo Tolstoy would describe that human worth based on shallow measurements such as wealth and possessions make true love and humanity impossible because of greediness, the devil filling our
  87. science Please Help Me

    5. Which one of the following is not a cause of anemia? a diet lacking in iron and certain vitamins germs from someone with anemia inherited problems relating to red blood cells. loss of a large amount of blood 6. Which of the following carries blood to
  88. Science Please Help Me

    5. Which one of the following is not a cause of anemia? a diet lacking in iron and certain vitamins germs from someone with anemia inherited problems relating to red blood cells. loss of a large amount of blood 6. Which of the following carries blood to
  89. english

    Which of the following is not true of parenthetical elements? A. The information they supply is necessary for the sentence to make sense. B. The information they supply can modify the subject or the verb. C. They provide additional detail. D. They require
  90. Statistics

    When testing H0: σ12 = σ22 vs. Ha: σ12 ≠ σ22 two random samples of sizes 10 and 8, respectively, are used. The calculated value of the test statistic is found to be equal to 2.22. Which of the following statements is true? a. H0
  91. statistics

    many states are considering steps that would help them collect sales taxes on items purchased through the internet. how many randomly selected sales transactions must be surveyed to determine the percentage that transpired over the internet? assume that we
  92. Technology

    Which of the following is not an example of an Objective question? Multiple choice Essay True/false Matching•• Why is it important to recognize the key word in an essay question? It will provide the answer to the essay It will show you a friends answer
  93. production and operations management

    All of the following statements about ABC analysis are true except: A. Inventory may be categorized by measures other than dollar volume B. It categorizes on-hand inventory into 3 groups based on dollar volume C. It states that all items require the same
  94. Physics

    "A fish hangs from a spring scale supported from the roof of an elevator. If the elevator has an upward acceleration of 1.2m/s^2 and the scale reads 200N, under what circumstances will the scale read 150N? What will the scale read if the elevator cable
  95. Social Studies

    Which of the following is true of the Spanish-American War? A. Black soldiers referred to black Cubans as "Smoked Spaniards." B. Racial tensions were suspended for the duration of the war. C. About one in ten American soldiers were black. D. The black
  96. statistics.. URGENT!! PLZ!!

    The margin of error is: a. the difference between the point estimate and the true value of the population parameter b. the critical value times the standard error of the estimator c. the smallest possible sampling error d. none of the above Complete the
  97. physiology

    anaerobic respiration is triggered when the ratio of ________falls below a critical level. a.carbon dioxide supply to oxygen need b.oxygen supply to glucose need c.glucose supply to glucose need d.oxygen supply to oxygen need the electron transport chain
  98. U.S. GOVERNMENT

    True or False Qsns: 1)Indiana is TECHNICALLY not a "state," because it has to answer to a higher authority, that being the national government in D.C. 2)The U.S. is a republic, because we are led by a president and Congress, and their authority is based on
  99. American Government: Check my answers please

    1. Self-interest is not a primary motivation for people to become involved in a capitalist economy. a. True b. False Answer: A 2. In the U.S. economy, the government does not interrupt the market economy and business transactions between companies. a. True
  100. social science

    1) Which large European city declined significantly in population over the past century? A) Paris B) London C) Rome D) Madrid 2) The industrial city was characterized b A) decentralization B) corporate growth C) manufacturing D) commerce 3) Modern humans