1. Biology

    10. Which of the following is NOT true about the digestive system of annelids? a. It contains setae to move the food through the anus b. It is similar to an open tube c. It passes nutrients through the intestinal wall to the bloodstream d. It stores soil
  2. Parabola Help

    by plotting the graph of parabola y=2+3x-2x^2 which 3 option are true 1) the graph is the same as that of y=6+9x-6x^2 2)the parabola has a minimum point 3)the gradient of the parabola at x=2 is 0 4)the graphy=2+3x-2x^2crosses the x-axis at the same point
  3. Graphing trigonometric function

    sine and cosine have a period 2pi tangent and cotangent have period pi Can someone explain why? thanks a lot. well tangent is sine/cosine and there a place where the tangent function is undefined and that is where the asymptotes occur. the same is true
  4. math

    True or False? 1. The product of 2 linear polynomials is quadratic 2. The sum of two cubic polynomials cannot have a degree greater than 3. 3. The sum of two cubic polynomials may have a degree less than 3. 4. The sum of a cubic and a quartic polynomial
  5. Computer Science

    Write a Class to represent one of the following items. Note that each class must a proper constructor even though the constructor is not explicitly named. 2. Student that has a name, point and course count. The class should have methods that can: (a) add a
  6. Geometry Please Help!

    Given triangle ABC with vertices A(-6, -2), B(2,8), and C(6, -2). Line AB has midpoint D, line BC has midpoint E, and line AC has midpoint F. Which of the following statements is true? 1. ADEF is only a parallelogram 2. ADEF is a rhombus 3. ADEF is a
  7. English

    I need help on my grammar and figuring out a way to write these answers more better. Shakespeare in Love 1) What are the main themes of the film? The filmmaker’s message is not clear until we see what happens to the protagonist. The Main themes of the
  8. science

    1. Which is not a characteristic of the group 1 alkali metals? A. High densities B. Low melting points C. Found in batteries D. Silvery solid 2. which of the following is true of the group 2 alkali earth metals A. they are less dense that the group 1
  9. Crt/205 Critical Thinking

    I need help with this assignment: Argument Evaluation DUE: Day 7 Points: 100 · Read the essay “Bush’s Environmental Record” by Bob Herbert found in the “Appendix 1”, pgs. 461-462. To find this, click on the “Controlling Irrational Fears after
  10. AP Calc. AB

    In general, if lim x->a m(x) does not exist and lim x->a n(x) does not exist, is it true that lim x->a [m(x)+n(x)] does not exist? How about lim x->a [m(x)*n(x)]
  11. Stats

    To compare the durabilities of two paints for highway use, 12 four-inch wide lines of each paint were laid down across a heavily-traveled road. The order was decided at random. After a period of time, reflectometer readings were obtained for each line. The
  12. Science

    An alumium rod when measured with a steel scale both being at 25 degree celcius appears to be 1 meter long. If the scale is correct at 0 degree celcius, what is the true length of the rod at 25 degree celcius? What wull be the length of rod at 0 degree
  13. STAT

    You want to determine if your widgets from machine 1 are the same as machine 2. Machine 1 has a sample mean of 15 and a sample standard deviation 6 and a sample size of 18. Machine 2 has a sample mean of 12 and a sample standard deviation of 6 with a
  14. general science

    2 waves are traveling through a container of nitrogen gas. Amplitude of the first wave is 0.3 cm, and the second 0.9 cm. What is true about the two waves? a. the energy of thee first wave is less than the second b. energy of the first wave is greater c.
  15. math

    ms.sue help asap 1. which exponent makes the statement true? 1/5^9 =5^? 9 -9 1/9 -1/9 2. y^5*y^14 = 2y^19 y^60 y^19 2y^60 3. w^12/w^18 w^30 w^-30 w^6 w^-6 4. using the numbers 3,2, and 4 which of these problems would have a solution of 4? 4*2^3/2^3
  16. Human Biology

    How can you identify a desert animal from an aquatic one by looking at the kidneys. I meant to put a question at the end. Morphological study of the desert heteromyid kidney with emphasis on the genus Perognathus. * Altschuler EM, * Nagle RB, * Braun EJ, *
  17. math- check

    please check: this deals with a rectangular prism: RECTANGULAR PRISM HAS (6 FACES) 4 FACES ARE FORMED BY RECTANGLES 2 FACES ARE FORMED BY SQUARES A RECTANGULAR PRISM HAS 12 EDGES A RECTANGULAR PRISM HAS 8 VERTICES t FOR TRUE, f FOR FALSE T : IT HAS NO
  18. Computer Sci Help pls

    Write a Class to represent one of the following items. Note that each class must a proper constructor even though the constructor is not explicitly named. 2. Student that has a name, point and course count. The class should have methods that can: (a) add a
  19. Chem

    H3CA is a vitally important intemediate in the metabolism of carbohydrates. The compound is widely distributed in plant and animal tissues and fluids. H3CA is a tiprotric acid, ie, it requires three moles of NaOH to fully neutralize one mole of H3CA. a.)
  20. Physics

    Which of the following statements about Ohm’s Law is true? A. Keeping the same voltage and decreasing resistance decreases the current. B. To increase the current, decrease the resistance. C. Ohm’s law relates power, current and resistance. D.
  21. ALGEBRA

    Select all statements that are true. (log_b\(A\))/(log_b\(B\))=log_b\(A-B\) (If ) log_1.5\(8\)=x, text( then ) x**(1.5) =8. log\(500\) text( is the exponent on ) 10 text( that gives ) 500. text (In )log_b\(N\), text( the exponent is )N. text( If )
  22. Geography

    6. Which of the following statements is NOT true? a. the Nile River is a major transportation route across southern Africa b. the central plateau produces many cataracts in African rivers. c. Africa's rivers can be used for hydroelectric power d. because
  23. Chemistry......

    If the statement is true, write a T in the blank. If the statement is false, rewrite it to make it correct. 1. An inert gas reacts easily with other elements 2. Radioactive decay is dependent on external forces such as temperature and pressure
  24. Chem

    If the statement is true, write a T in the blank. If the statement is false, rewrite it to make it correct. 1. An inert gas reacts easily with other elements 2. Radioactive decay is dependent on external forces such as temperature and pressure
  25. Sociales studies

    The citizens of a small city have been eager to see more green space in their environment there are several abandoned lots that activists think could be turned into community gardens or parks for people to freely enjoy. 1. For the additional green space to
  26. Science Answer Check

    1. Which of the following statements is true about artificial selection? A. Breeders can control which animals mate. B. Breeders can control what mutations will appear in the offspring. C. Both A and B are true. D. Neither A nor B is true. 2. Which of the
  27. psychology

    Correlations show the relationship between two things and describe which one caused the other. False True False? When doing experiments, researchers change a condition called a(n) __________ so that they can see the results of that change. experimental
  28. English - Please help quickly!!

    I need help with making a thesis statement for an essay I have to write on the book Poisonwood Bible The prompt I have says : Choose a novel or play that depicts a conflict between a parent and a son or daughter. Write an essay in which you analyze the
  29. Religion

    Debate topic: "Virtue is only beneficial to the one being virtuous." Me and my group members are on the Affirmative side, therefore must agree that this resolution is true and must stand. I've done some brainstorming with my group and researched online
  30. math

    if I am traveling by plane from Marshfield to Minnepolis (150 Statue miles) which equals 172.5 nautical miles. Our true course is set at 207 degrees. Theresa os a wind blowing from 90 degrees at 10 knots. Normally the plane travels at 100 knots per hour,
  31. Science

    Sarah heated two cubes of aluminum to 50 degrees celsius. Cube B has a volume of two cubic centimeters. If the cubes do not touch each other, which of these statements is true? A. Cube A has a higher temperature than cube B. B. Cube B has a higher
  32. statistics

    A tobacco company claims that the nicotine content of its "light" cigarettes has a mean of milligrams and a standard deviation of milligrams. What is the probability that randomly selected light cigarettes from this company will have a total combined
  33. statistics

    A tobacco company claims that the nicotine content of its "light" cigarettes has a mean of milligrams and a standard deviation of milligrams. What is the probability that randomly selected light cigarettes from this company will have a total combined
  34. Statistics

    A tobacco company claims that the nicotine content of its "light" cigarettes has a mean of milligrams and a standard deviation of milligrams. What is the probability that randomly selected light cigarettes from this company will have a total combined
  35. english

    38. Which of the following sentences contains a helping verb? (1 point) Eduardo looked in the basement, but the puppy wasn’t there. Sakkom hung wind chimes because she loves the sound. Roger has never performed a solo in his life. The leader of the troop
  36. science quiz pls help!!!

    In the following diagram, the green ball changes direction after colliding with the red ball because the red ball has more momentum. True False***? 2. What is the momentum of a 20.0 kg scooter traveling at 5.00 m/s. 4.00 kg m/s 20.0 kg m/s 25.0 kg m/s 100
  37. Social Studies

    1) Why was Harding's emphasis on "normalcy" an effective campaign strategy? A: Harding's emphasis on "normalcy" was an effective campaign strategy because many people strongly desired a return to "normal" life after the war. 2) How did Calvin Coolidge
  38. Finance

    You are the supervisor for a large technology-based corporation. One of your subordinate managers, Carly, is heading up a project for a new system that is scheduled to market on the 1st of the year. It is August and things are not progressing at the pace
  39. English

    Writeacher, I downloaded a few details about modals expressing possiblity/probabity but I'm still doubtful about their use. My questions to you are numbers 1-2. Using modals to talk about the present: 1)Will / won't We use will and won’t when we are very
  40. English

    Writeacher, I downloaded a few details about modals expressing possibility/probability but I'm still doubtful about their use. My questions to you are numbers 1-2. Using modals to talk about the present: 1)Will / won't We use will and won’t when we are
  41. Designing Specialty Areas

    Which of the following statements about the involvement of fathers is true? A. Fathers parent in a way that's different but complementary to mothers. B. With the emphasis on father involvement in early childhood programs, father involvement is now nearly
  42. UOP

    7) What is the relationship of the Mean, Median and Mode as Measures of Central Tendency in a true Normal Curve? A. They are equal B. They align Median, Mode and Mean in that order C. They align Mean, Median and Mode in that order D. They align Mode,
  43. math neeeeed help plez help

    trapezoid ABCD is congruent to trapezoid EFGH. Which statement is true. A- B= 15cm D-C 9cm A. side EF is 15cm B. side GH is 9cm C. side EF is 9cm D. the height of trapezoid EFGH is 9cm
  44. Math-CHECK PLEASE

    Which of the statements is ALWAYS TRUE? A-A right triangle is a scalene triangle. B-An equilateral triangle is an isosceles triangle. C-An isosceles triangle is an obtuse triangle. D-A right triangle is an acute triangle. I got either A or D. I don't know.
  45. Math

    This year, Ms. Nelson's class has 20 students. Which of the following statements must be true? I. This year at least two of these students have their birthdays on a Sunday. II. This year at least two of these students have their birthdays on the same day
  46. Lin. Alegra Help

    Suppose that you are given the following system of linear equations [variables are x1, x2, x3 and x4] x1 + 3x2 + 9x3 + 2x4 =5 x1 + 3x3 - 4x4 =5 x2 + 2x3 + 3x4 =-1 -2x1 + 3x2 + 5x4 =-1 Let b be the vector such that B = [A b] , and let a1, a2, a3 and a4 be
  47. CHEM 1B

    Carboxylic acids are stronger acids than alcohols A. This is because the carboxy anion is delocalised. B. This is because the hydrogen atom is delocalised. C. The O-H bond in carboxylic acids is very strong. D. This statement is not true One characteristic
  48. Chem please help me I need help

    I am having trouble on this please help Indicate which of these statements is true? For those that are false,.explain why a) addition reactions always involve compounds with multiple bonds b) all addition reactions produce polymers, but not all polymers
  49. chemistry

    I am having trouble on this please help Indicate which of these statements is true? For those that are false,.explain why a) addition reactions always involve compounds with multiple bonds b) all addition reactions produce polymers, but not all polymers
  50. physics

    which one of the following statements concerning an ac circuit is true? a) when only resistance is present in an ac circuit, voltage and current are in phase. b) on average, the power dissipated by resistor in an ac circuit is zero. c) for a resistor in an
  51. Physics

    Which of the following statements is not true if an incident ray of light makes an angle of 30o with the mirror surface? angle of incidence = 30o angle of reflection = 60o angle of incidence = 60o angle between incident ray and reflected ray = 120o
  52. chemistry

    Examine the false statement. Weak acids always have a high pH. Select the rewording that makes the statement true strong acids always have a high pH weak acids always partially dissociate strong acids always have a low pH weak acids always fully dissociate
  53. ap chemistry :(

    consider the reaction C6H14 + 9.5O2 yields 6CO2 + 7H2O at constant pressure. which response is true? 1. work may be done on or by the system as the reaction occurs, depending upon the temperature. 2. work is done on the system as the reaction occurs. 3. no
  54. physics- multiple choice

    1. The normal force is always less than or equal to force of gravity a) True b) False 2. What is the value of the normal force? (there is an image of a box with a mass of 10kg and it is sitting on a flat horizontal surface) a) 98 N [up] b) 98 N [down] c)
  55. Physics multiple choice

    1. The normal force is always less than or equal to force of gravity a) True b) False 2. What is the value of the normal force? (there is an image of a box with a mass of 10kg and it is sitting on a flat horizontal surface) a) 98 N [up] b) 98 N [down] c)
  56. SPANISH

    TRUE OR FALSE IN Spain, all hotels are new modern buildings The PARADORES in Spain are operated by the Spanish government Many types of accomodations are available for tourists who visit Spain i found this in my book, can someone pleaase translate it for
  57. poetry

    Is this a good Poem for a senior in creative writing? The topic is "The Power of Words" Words are one of the most powerful things in our lives. They can bring out many different feelings. Excited, sad, happy, or mad. Words put together can create a story.
  58. HELP Science

    1)What do we mean by opponent processing? (2 marks) How are white and yellow produced by the opponent process? (3 marks) 2)Describe how light is produced in the atom (2 marks.) Why does each atom produce only specific colours? (3 marks) 3)How does the
  59. Math Help!

    Four students worked to find an estimate for square root 22. Who is closest to finding the true estimate? A. Tiffany: "Use square root 16 and square root 25 to estimate." B. Todd: "I use square root 9 and square root 16." C. Trenton: "It should be square
  60. Criminal justice

    1. Which of the following principles approves or disapproves of an action according to its tendency to promote happiness for the greatest number of people? A. Altruism B. Utility C. Hedonism D. Egoism im confused between B and C 2. Which of the following
  61. English

    When an animated cartoon was made of Animal Farm, it was given a happy ending. Animals everywhere hear that Napoleon has betrayed the cause of animalism. They join in a second revolution and succeed in overthrowing him. This leads to the establishment of
  62. Dynamics

    True or false (Each question carries 1 marks) (i) A rigid body is an idealization of the behavior of a body. (ii) A Geo-stationary satellite follows a circular orbit at a unique and has a time period of 24h. (iii) Constancy of areal velocity for a central
  63. Law

    1. Punishment would probably work best for which of the following individuals? A. An actively using drug addict who was arrested for petty larceny B. A teacher who had a relationship with a 16-year-old student C. A sociopath who has been treated for mental
  64. psychology

    Carrie is a fifth grader at Gorrie Elementary school—a school near an affluent neighborhood in a suburb of a major city. Carrie, who lives with her divorced mother—a high school dropout with a steady job as a minimum wage housekeeper—seems to have
  65. Math

    Part 1: Write two conditional statements for which the converse is true. 1. Statement: 2. Converse: 3. Statement: 4. Converse: Part 2: Write two conditional statements for which the converse is false. 5. Statement: 6. Converse: 7. Statement: 8. Converse:
  66. politics

    Which of the following is NOT true about the electoral college? A. Except for Maine and Nebraska, the states appoint their members of the electoral college on a “winner-take-all” basis. B. A presidential candidate needs 270 electoral votes to win
  67. English

    Can you please check my tenses. In particular, can you tell me, which tense I shall use when making a summary? Can I say “She says she was going to give a party?” when referring to her own words? Or shall I write “She said she was going to have a
  68. Science

    what is true about the number of moles of hydroxide ions and moles of hydrogen ions at the equivalence point? How can you find the moles of hydroxide ions at the equivalence point?
  69. Ethics

    please check my answer thanks :) There has been judgement entered agaisnt Mike in the Northern District Court of New York. What statment below must be true for the judegment to be aganist Mike personally. A. He was a resident of New York B. Mike lives in
  70. Biology 10B

    According to the pressure-flow hypothesis, which of the following statements is not true • Water moves from the xylem to the phloem of a plant. • Water is necessary for sugars to move through phloem. • Phloem is able to move sugars in either
  71. Algebra 2: Prob and Stats

    A survey of 480 high school students found that 37% had a pet. Find the margin of error. Round to the nearest percent. Use the margin of error to find an interval that is likely to contain the true population proportion. * margin of error = +-5% interval,
  72. psy210

    I had to compare and contrast two personality theories and would like if someone could give me some constructional feedback. When compared Psychodynamic theory and Humanistic theory they both try to define why we do what we do as humans, and why we choose
  73. calculus

    Approximate the area in the first quadrant between the x-axis, the y-axis, the line x = 3, and the function f(x) = x^2+1 For this approximation, you must use 6 rectangles of equal width, and this must be a lower sum. In your answer, you must include
  74. Math-Statistics

    A marketing research company needs to estimate which of two soft drinks college students prefer. A random sample of n college students produced the following 98% confidence interval for the proportion of college students who prefer drink A: (0.384, 0.424).
  75. English

    My assignment calls for a review of a movie or television show that tells us about the society in which we live. It must address the big-picture issues, not just the quality of the work. Could you tell me what you think about what I have written? Any
  76. Math

    Which of the following is true about a trend line for data? A. The minimum data point always lies on the trend line. B. Every data point must lie on the trend line. C. The trend line describes the pattern in the data if one exits. D. The trend line
  77. Geography

    Gerrymandering provides representation to minorities who, without it, would not be represented in the House of Representatives, but at the same time packs minorities into a district without regard or concern. True? In the book it says " To provide
  78. Calculus

    Based on a preliminary report by a geological survey team, it is estimated that a newly discovered oil field can be expected to produce oil at the rate of R(t) = 800t^2/(t3 + 32)+ 5 (0 ≤ t ≤ 20) thousand barrels/year, t years after production begins.
  79. English

    Hi Miss Sue, Here is the final draft can you check it for me? Thank you Dear Grandmother Irene Happy Birthday to you on this special day! Shine like a star today on your Birthday. Have a wonderful time at your Celebration Party. Wishing you all the best on
  80. math

    Test these conjectures. Give three examples. Explain if the conjecture is correct or incorrect. 1. If a number is divisible by 4, it is always an even number._________________________________ 2. All multiples of 5 have a 5 in the ones
  81. physics # 6

    6. Which object listed below is not accelerating? a.) A person standing on the surface of the Earth. b.) A satellite in geostationary orbit. c.) A jet traveling at Mach 6.7 in a straight line. d.) A child standing on a merry-go-round. e.) A block
  82. Civics

    10. Which of these statements about the Cuban Missile Crisis is true? A. President Kennedy removed nuclear missiles from Turkey to resolve the crisis. B. Fidel Castro's government had manufactured guided missiles. C. President Kennedy called Nikita
  83. math

    Suppose a test of musical ability has a normal distribution with a mean of 50 and a standard deviation of 5. Approximately what percentage of people are over 55? a. 6% b. 16% c. 45% d. 84% A z-score of 1.75 indicates how many standard deviation units above
  84. Chemistry

    which of the following statements are true? a) For an acid H-O-A : the greater the electronegativity of A, the weaker the acid HA b) For an acid H-A : the weaker the H-A bond, the stronger the acid H-A c) HF is a stronger acid than HCl d) HClO4 is a weaker
  85. chemistry

    1. You begin pouring sodium chloride into a glass of water. For a long time, the sodium chloride just dissolves in the water, but suddenly it begins to pile up at the bottom of the glass. Which statement is true? o A. The sodium chloride has increased the
  86. Anatomy/Biology-Please check

    I'm posting this again today hoping someone can clarify this for me-I've posted it prior but no one answered yesterday so I'll try again. Thank you in advance I have two question 1.In a dehydration synthesis reaction which of the following occur- a.
  87. Chemistry

    You have two beakers, one filled to the 100-mL mark with sugar (the sugar has a mass of 180.0 g) and the other filled to the 100-mL mark with water (the water has a mass of 100.0 g). You pour all the sugar and all the water together in a bigger beaker
  88. Physics

    19. Two people of unequal mass are initially standing still on the ice with negligible friction. They then simultaneously push each other horizontally. Afterward, which of the following is true? * -The center of mass of the two person system moves in the
  89. physical science

    A 100 kg ball of lead rests next to a 10 kg rock. Which statement below is true? a. the lead ball and the rock have equal amounts of inertia b. if the lead ball and the rock fell from the same height in a vacuum, the rock would hit the ground first because
  90. Microeconomics

    Consider public policy aimed at smoking a.) Studies indicate that the price elasticity of demand for cigarettes currently costs $2 and the government wants to reduce smoking by 20%, by how much should it increase the price? b.) If the government
  91. algebra 2

    You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1.1. the weight of an object follows this equation: , where C is a constant, and r is the distance that the object is from
  92. statistics

    A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than examine the records for all students, the dean randomly selects 200 students and finds that 118 of them are receiving financial
  93. Organic and Nuclear Chemistry

    Regarding nuclear reactions that release a great deal of energy, which statement is true? A. In a fission chain reaction, a uranium nucleus struck by a high-energy neutron emits two neutrons. B. Nuclear fission releases more energy per unit mass than does
  94. Physics - Check my work please :)

    Check this please :D Which of the following three statements used to describe work are true: i)Work is done only if an object moves through a distance ii)Work is done only if energy is transferred from one form to another iii)Work is done only if a force
  95. STAT

    You want to determine if your widgets from machine 1 are the same as machine 2. Machine 1 has a sample mean of 5 and a population standard deviation 2 and a sample size of 4. Machine 2 has a sample mean of 10 and a population standard deviation of 2 with a
  96. statistics

    You want to determine if your widgets from machine 1 are the same as machine 2. Machine 1 has a sample mean of 5 and a population standard deviation 1 and a sample size of 4. Machine 2 has a sample mean of 8 and a population standard deviation of 2 with a
  97. Chem

    Which of the following statements is (or are) true? I Hydrogen bonds occur between two hydrogen atoms. II Hydrogen bonding occurs between a hydrogen atom and an oxygen atom within a molecule. III Hydrogen bonding requires a molecule containing a large
  98. World History

    The Roman Empire had unified the Mediterranean region on both northern and southern seacoasts (1). Following the decline of the Roman Empire, a power vacuum was filled by the Byzantine and Arab Empires (2). Under the Byzantine Empire, the region became
  99. prepositions

    Preposittions can give information about a. location b. sequence c. method Answer all three are "true" 1.which sentence contains a compound preposititon a. Mark and David enjoyed the evening with Mary and Gwen. b. Mary will drive me home regardless of the
  100. English

    Can you please proofread this for me. Any help would be greatly appreciated. Throughout my life, I have been faced with many great opportunities that have helped me become a better person and reach my goals in life. I graduated from ? High School in 2008