1. math(Discrete)

    Determine whether the statement ∀x ∈ Z, ∃y, z ∈ Z[x = 5y + 7z] is true or false. Explain.
  2. Algebra or Math help

    Your friend thinks that the equation k - 3.5 = 21 is a true statement. Is your friend correct? Explain why and how you figured it out
  3. math

    If the lengths of two sides of a triangle are 12 and 15, which of the following must be true of p, the perimeter of the triangle? A. 3<p<27 B. 12<p<42 C. 12<p<54 D. 30<p<54 E. 3<p<54 I honestly don't know what this question is
  4. Romeo and Juliet please check my answer

    In act 5 is this true? Bathasar delivers Friar's message to Romeo.
  5. math

    which values can be substituted for x to make the inequality x - 4 >0 true? choose all that apply A. 0 B. 3 C. 4 D. 18 my answer is 0 and 4 please check my answer's
  6. Driver's Ed

    The lower the speed, the less time the driver has to spot dangerous situations and take action. A) True. B) False.
  7. Anatomy and Physiology

    Please check my answer thanks True or False An example of an organic molecule is table salt I said False
  8. measurements

    In the formula for the volume of a pyramid, the height h, is the distance measured along one faces of the pyramid to the base. Is that true?
  9. statistic

    you sample 100 women and the average mean is 16, Calculate 95% Confidence interval for the sample. Do you have evidence the true mean is not 14? i need help please
  10. P.E. HEALTH

    True or False: The main process for digestion takes place in the stomach. Is the answer False?
  11. ALGEBRA

    I NEED SOMEONE TO CHECK THESE PLEASE!!! IF B IS REPLACED WITH A NUMBER THAT SHOWS THE RELATIONSHIP INDICATED IN THE TABLE, ARE THESE ANSWERS CORRECT? Y = -X + B X Y 1 0 2 -1 8 -7 10 ? 20 ? 40 ? SO,
  12. Microeconomics

    For the operator of a movie theater, the marginal cost (MC) of admitting one more person to the theater is zero. True or False? Why?
  13. social

    True-False 1.According to Akers’ learning theory, the social environment is the most important source of reinforcement.
  14. Sociology

    Status conflict exists when different groups compete for terrority or other advantages. a.True b.False I think its false
  15. math

    Is it true that for any series of numbers that when graphed make a continuous line with one and only one y value for each x value, that that series has a unique formula?
  16. government

    True or False. As a result of the war, the South's economy boomed, while the economy of the North slumped.
  17. statistics

    How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval?
  18. Math

    Determine whether the statement is true or false. Explain or show why. If a natural number is divisible by 7, then it must also be divisible by 21
  19. Math

    Please help with this problem!! Assume a, b and c are positive integers such that c cubed=a squared-b squared. If c is the least odd integer for which this is true, what is the least possible value of b?
  20. Physics

    True or false Wavelength is the distance between two adjacent points on a wave that are in phase My work I think it is false
  21. psychology

    True or False No reputable psychologist takes seriously any irrational phenomena such as ESP or hypnosis. False?
  22. science

    a decrease in food miles will likely increase the environmental impact of any given food points. True or false
  23. goverment

    true or false One of the reasons for the War of 1812 with England was that our rights as neutrals had been violated by England.
  24. Fitness (Check answers)

    The lack of balance can lead to disease. True or false My answer is FALSE.
  25. frankenstein

    for this question is the answer true One sign that Frankenstein is declining during his study is that he becomes unresponsive to the beauty of nature
  26. math

    Please solve -2x+7>22 -2x+7-7>22-7 -2x>15 -2x/(-2)<15/(-2) Switching the order of the inequality here is essential to keep the solutions true for the inequality since I divided by a negative #. x<-7.5
  27. Math

    Insert parentheses and/oraddition signs to make each equation true. Remember that parentheses can indicate multiplacation. A. 3 2 4 1= 13 B. 3 2 4 1= 21 C. 3 2 4 1= 12 D. 3 2 4 1= 10
  28. genetics

    Wild type, or wt, refers to the genotype that is the typical genotype found in nature. True False
  29. chemistry

    Consider the following reaction. 2 CO (g) + O2 (g) −→ 2 CO2 (g) What is most likely true about the entropy change for this reaction? Why would the delta s of the rxn be less than zero? thanks.
  30. Statistics

    How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval?
  31. Math

    13. A true or false test has 8 questions. What is the probability of guessing the correct answers to all the questions? A. 1/10 B. 1/16 C. 1/64 D. 1/256
  32. Statistics

    A student is taking a true/false exam with 15 questions. If he guesses on each question, what is the probability he will get at least 13 question right?
  33. Math

    Aiden know the lenght of only one side of his garden. He says he will be able to find the area knowing only one side. Explain how this can be true.
  34. statistics

    The iron rod is supposed to have conductivity 10.1. Do the measurements give good evidence that the true conductivity is not 10.1?
  35. Biology

    In most biology experiments, the relationship between the independent and the dependent variable can best be described as cause and effect,” true or false? Explain.
  36. science

    Vertebrates" is the name used to describe mountain-building processes. a) true b) false Just need to know if my answer or right or wrong. Thanks! :) false
  37. math

    consider this true proportion r/w=s/t.if the product of the means increases,what must happen to the product of the extremes?explain your reasoning.
  38. Math

    If two variables are very strongly associated, the correlation between them will be near 1.0 or -1.0. A) False B) True I put false because the variable have to be quantitative and they have to be perfect...
  39. math

    . Decide if the statement is true or false, and tell why. a. 7 ƒ 23 b. 24 is a factor of 8. c. 16 ƒ 16 d. 0 ƒ 6 e. 15 ƒ 0 f. 65 is a multiple of 15. g. n3 is a divisor of n5 h. A number is always a factor of its square.
  40. SPANISH

    TRUE OR FALSE In Guatemalan markets, tourists always have to pay the price indicated on each item False? (i think they can bargain)?
  41. History

    Ultimately, Reagan just like Nixon desired less federal government involvement. True or False I think it's false
  42. political science

    Both California State Senators and US Senators are elected to six year terms.? true or false?
  43. Science

    True or false: light travels in straight lines if the medium it travels doesn't change
  44. statistics

    True or False A sample mean with a z-score value between 1.00 and +1.00 would be considered a fairly typical, representative sample.
  45. grade 7 math factors

    you can decide if 10 is a factor of a whole number without dividing the entire number by 10 true / false
  46. Physics

    (True or False) One Kilowatt-hour is equal to the energy consumed by an electric device of 1 W for 1 hour
  47. math

    Given p is true, q is false, and r is trus, find the truth value of the statement (~p^q)<->~r. Show step by step work.
  48. English

    is this true:Introductory participial phrases and adverb clauses are set off from main clauses by commas.
  49. Physics

    A particle moving along a line that passes through the origin has zero angular momentum about that origin true false
  50. english

    please correct my grammar. thank you very much to you and your is willing to employ me. I hereby certify that the above information is true and correct to the best of my knowledge. please I need your advise or advice
  51. maths

    make a true number sentence by filling in the missing number 14 +(3x2)= _________ (14 + 3)x2 = _______
  52. social studies

    in harcourt bracesocial studies ancient civilizations is it true or false that steling was not a very serious crime & why
  53. science

    You should pour an acid or base into water to keep the acid from producing heat or splattering? True/False?
  54. science

    is it true that When two identical waveforms of the same frequency are added together, the result will be a waveform with a wavelength that is twice that of the individual waveforms.
  55. Statistics

    How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval?
  56. english

    It is the neighbor who believes that good fences make good neighbors, not the speaker. true false
  57. Biology

    Enantiomers, like L-alanine and D-alanine, are so similar that ribosomes will incorporate either one into a protein during synthesis. True or False?
  58. Statistics

    True or False In most research situations, the goal of a hypothesis test is to reject the null hypothesis.
  59. Math

    Draw and label all the rectangles with a perimeter of 24 units. Use only whole units. What is true about the rectangle with the greatest area?
  60. Geometry

    (1)Is a trapezoid a square? false (2) if all sides of a quadilateralare congruent,the quadilateral is a rhombis? true or false
  61. Business

    The higher the inventory turnover ratio, the more inefficient the firm is in managing its inventory. True or False?
  62. health

    its it good to provide long activiyies for clients to keep them occupied for a long period True or False
  63. business

    Return on assets represents the total return on the net investment in the firm. True or False?
  64. geometry

    (1)Is a trapezoid a square? false (2) if all sides of a quadilateralare congruent,the quadilateral is a rhombis? true or false
  65. algebra

    Hi, I need some help on my homework. Can you help me? True or False, if False correct the underlined portion. 1) If 3<x, then 3+y<x+y 2)If |w-7|<-3, then w-7>-3 or w-7<3 3) If -4<-2t+6<10, then 2>t+6>-5 4) If |y+8|+2=6, then
  66. health class

    smoke exhaled from a smoker's lungs is called mainstream smoke id this true or false
  67. business statistics

    The sampling distribution of x bar must be a normal distribution with a mean 0 and standard deviation 1. true or false
  68. math

    consider this true proportion R/W=S/T.if the product of the means increases,what must happen to the product of the extremes?explain your reasoning.
  69. critical thinking please help

    True or false: It is the case that if an argument is inductively correct then the conclusion is factually correct as well
  70. Biology

    When milk is present, the lactose repressor binds to the lac operon. Is this true or false? I think it is false.....?
  71. Chemistry

    Which is true of a balanced combustion reaction? Atoms are conserved. Mass is conserved. Both are correct. confused
  72. eng 122

    You should introduce new evidence in your concluding paragraph. (Points : 1) True False answer false
  73. MATH HELP ASAP

    Point N is the midpoint of MO. Which of the following are true if MO=124 ft? * 62 ft * 96 ft * 124 ft ***** * 248 ft Am I right please help! IF YOU KNOW ALL THE TEST ANSWERS PUT THEM BELOW PLEASE.
  74. Stats

    A strong positive correlation of .95 indicates that the independent variable X is the cause for the variaton in Y. True/False- I say False but don't know for sure.
  75. English

    Jack London's works did not enjoy popularity until after his death. a- true b- false My answer is false
  76. Science

    Some teachers explain that meiosis is actually mitosis happening twice. Is this a correct assumption?Why might teachers say this and is it a true statement? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  77. science

    A decrease in “food miles” will most likely increase the environmental impact of any given food. (Points : 1) True False
  78. P.E

    If you've started a lot of hobbies all at once, you should watch out for clinical depression to set in. True False Is the answer False?
  79. Science

    Some teachers explain that meiosis is actually mitosis happening twice. Is this a correct assumption?Why might teachers say this and is it a true statement?
  80. Math

    1. Which exponent makes the statement true? 1/5^9 = 5^? a. 9 b. -9 c. 1/9 d. -1/9 2. y^5 x y^14 a. 2y^19 b. y^60 c. y^19 d. 2y^60 3. w^12/w^18 a. w^30 b. w^-30 c. w^6 d. w_6 FYI the "^" is a sign for exponent. I don't understand any of these.
  81. college

    How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval?
  82. English

    Personal communication includes electronic mail conversations with citation. True False I say false
  83. Physics

    When altitude increases, pressure decreases and density decreases. Is this true in a statement descrbing the relationship between the three?
  84. Algebra

    Hello, I am having a bit of trouble with two Algebra questions 1. Solve x= 8x - over the domain [0, 2, 4, 6] 2. For what values of a is the equation /a/ =5 true? Thanks in advance.
  85. computer

    True/False Is the order of mathematical operations applied to most computer languages are not relevant in pseudocode.
  86. English

    Scholarly articles contain loosely related paragraphs, without a formal structure. True False I say False
  87. Criminal Justice

    Appellate courts may rule without ever hearing an oral arguement? True or False ? False?
  88. maths

    In the equation (he)^2 = she the letters represent digits.Find replacements for the letters to make the statement true.
  89. Anatomy & Physiology II

    The left side of the heart pumps the same volume of blood as the right. True or False I believe it is False
  90. math

    Critique Reasoning Alex decides that 21 divided by 3 = 7 is NOT a true equation. Is Alex correct? Explain
  91. Math

    In a circle, the measure of an inscribed angle is one-half the measure of its intercepted arc. Is this true or false?
  92. Novel

    In chapter 10 of The True Confessions of Charlotte Doyle, why does Cranick suggest that Captain Jaggery have Charlotte defend him?
  93. Linear Algebra 2

    Let V and W be vector spaces over a field and let T:V->W be a linear transformation then V/kerT =R(T) (A) True (B) False (C) Indifference (D) None of the above (A) (B) (C) (D)
  94. Algebra

    I have worked this and checked it and it does not come out true any one help me? 3x-5(3x-7)=2(x+9)+45 3x-15x-35=2x+18+45 -12x-35=2x+63 +35 +35 -12x=2x+98 -2x -2x -10x=98 x=-98/10 x=-9 8/10 checking it i get 152 3/5 and 43 2/5 Help where did I go wrong?
  95. English

    Pronouns used as subjects or subject complements are in the nominative case A)True B)False i put false
  96. math

    2 thirds of 60 is greater than 1 thirds of 120? True or false and explain your reasoning. :) Thank you, Bella Yang
  97. math

    if a quad is equilateral the quad is a square true right? or is it false? kindda stupid question but i gotta b sure of it
  98. Math

    When Adding A Negative Number On A Numberline You Move Left On the Number Line. True Or False
  99. math

    Given a dilation with the origin O (0, 0), by observation determine the scale factor "K." DO, K = (5, 0) (10, 0) The dilation an expansion. true or false
  100. micro biology

    true or false Primary adaptive immune responses take longer than secondary adaptive