Suppose n is an integer. Select all statements below that are true: (choose 3) A) n^2 + n is always an even integer*** B) n^2 + n is always an even integer when n is even*** C) n^2 + n

37,336 results
  1. Probability

    For each of the following statements, determine whether it is true (meaning, always true) or false (meaning, not always true). Here, we assume all random variables are discrete, and that all expectations are well-defined and finite. Let X and Y be two

  2. Probability

    Suppose that we have a box that contains two coins: A fair coin: P(H)=P(T)=0.5 . A two-headed coin: P(H)=1 . A coin is chosen at random from the box, i.e. either coin is chosen with probability 1/2 , and tossed twice. Conditioned on the identity of the

  3. algebra 2

    f(x)={2x,x1} Given the piecewise functions shown below, select all of the statements that are true. A.f(5)=1 B.f(2)=4 C.f(-2)=4 D.f(1)=5

  4. Probability

    Suppose that we have a box that contains two coins: A fair coin: P(H)=P(T)=0.5 . A two-headed coin: P(H)=1 . A coin is chosen at random from the box, i.e. either coin is chosen with probability 1/2 , and tossed twice. Conditioned on the identity of the

  5. Math

    Let A , B , and C be events associated with the same probabilistic model (i.e., subsets of a common sample space), and assume that P(C)>0 . For each one of the following statements, decide whether the statement is True (always true), or False (not always

  6. Algebra

    1. Choose the correct solution in roster form. N is the set of natural numbers that are factors of 12. {1, 2, 3, 4, 6} {1, 2, 3, 4, 6, 12} {1, 2, 3, 4, 5, 6, 8, 12} *this is my answer {1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12} 2. Write the solution to the

  7. Calculus

    Which one or ones of the following statements is/are true? I. If the line y=2 is a horizontal asymptote of y= f(x), then is not defined at y=2. II. If f(5)>0 and f(6)

  8. Probability

    1.Let 𝑋 and 𝑌 be two binomial random variables: a.If 𝑋 and 𝑌 are independent, then 𝑋+𝑌 is also a binomial random variable b.If 𝑋 and 𝑌 have the same parameters, 𝑛 and 𝑝 , then 𝑋+𝑌 is a binomial random variable c.If 𝑋

  9. Calculus

    If f is a continuous function with even symmetry and lim x→∞ f(x)=10, which of the following statements must be true? I. lim x→∞ f(x)=10 II. there are no vertical asymptotes III. The lines y=10 and y= -10 are horizontal asymptotes a) I only b) II

  10. Algebra

    A sequence is defined recursively by the following rules: f(1)=3 f(n+1)=2⋅f(n)−1 Which of the following statements is true about the sequence? Select all that apply. f(5)=33 f(3)=10 f(4)=18 f(6)=66 f(2)=5 I cannot seem to figure out what to do, I even

  11. math

    the absolute value of an integer is always greater than the integer. True or False?

  12. math

    given the piecewise function shown below select all of the statements that are true

  13. Chemistry

    Which of the following statements are true regarding suction filtration? (select all that apply) a) Product should always be rinsed with cold water b) The filter flask can be held in place with your hand c) When filtering is complete you should remove the

  14. math induction

    prove the product of 4 consecutive integers is always divisible by 24 using the principles of math induction. Could anyone help me on this one? Thanks in advance! Sure For induction we want to prove some statement P for all the integers. We need: P(1) to

  15. 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

  16. Math

    Which statements are always true about regular polygons? Select all that apply. All sides are congruent •• Pairs of sides are parallel All angles are congruent •• All angles measure 90 degree Correct me if I'm wrong!!

  17. Math

    Prove that a^3 ≡ a (mod 3) for every positive integer a. What I did: Assume a^3 ≡ a (mod 3) is true for every positive integer a. Then 3a^3 ≡ 3a (mod 3). (3a^3 - 3a)/3 = k, where k is an integer a^3 - a = k Therefore, a^3 ≡ a (mod 3). Is this a

  18. Geometry

    Consider that ΔXYZ is reflected across the y-axis and translated 2 units down. Choose all TRUE statements about the transformation. 1) X'Y' ≅ XY 2) ∠Z ≅ ∠Z' 3)ΔXYZ is not congruent to ΔX'Y'Z'. 4)Reflecting and translating the triangle change its

  19. math

    you have a bag with 20 marbles ,2 yellow, 5 green, 12 red, and 1 blue.which of the following statements are true?select all that apply

  20. Georgia Geography

    Which of the following are true statements about the Fall Line? Choose all that apply. A) It marks the northern edge of the Piedmont. B) It is the last natural barrier for rivers on their way to the Atlantic. C) Many cities have developed along it. D) It

  21. Algebra 1 Polynomials

    Suppose n is an integer. Select all statements below that are true: (choose 3) A) n^2 + n is always an even integer*** B) n^2 + n is always an even integer when n is even*** C) n^2 + n is always an even integer when n is odd*** D) n^2 + n is never an even

  22. philosophy

    Libertarianism believes that causal determinism is true. Select one: True False I think true Whether or not we have free will seems to have implications for which of the following? Select one: a. Our idea of God b. Our idea of the physical laws of the

  23. math

    An integer is 5 more than another integer. Three times the bigger integer is 11 more than the square of the smaller integer. find the two integers

  24. Account

    Choose from the following list of terms/phrases to best complete the statements below, a. Fiscal year b. Timeliness c. Calendar year STUDY e. Annual financial statements f. Interim statements g. Natural business year h. Time period assumption i.

  25. Probability

    For each of the following statements, state whether it is true (meaning, always true) or false (meaning, not always true): 1. Let X and Y be two binomial random variables. (a) If X and Y are independent, then X+Y is also a binomial random variable. (b) If

  26. geometry

    Which of the following statements is true?Select one of the options below as your answer: A. A 25o angle is congruent to a 25o angle. B. Two intersecting lines form two pairs of congruent angles. C. It is possible for congruent angles to add up to 90o. D.

  27. math;)

    Which of the following statements about the function f(x)=sec(x) are true? Select all that apply. a. f(x) has no zeroes. b. f(x) has a period of 2pi.***** c. f(x) has an amplitude of 1. d. f(x) is symmetric about the origin. e. f(x) has asymptotes at

  28. chemistry

    Choose all of the following statements about the equilibrium constant K that are true: (a) If the K value for a reaction is > 1 then Go must be negative for this reaction (b) A large value for K implies there is a strong driver for the reaction to proceed

  29. Math

    is this statement always, sometimes, or never true: the absolute value of a positive integer is a negative integer. i think never am i correct

  30. Geography

    Which of the following are true statements about the Fall Line? Select all that apply. A.) It marks the northern edge of Piedmont. B.) Rivers widen and move more slowly south of it. * C.) Many cities have developed around it. * D.) It contains large

  31. psychology

    All of the statements about reading below are true EXCEPT: Select one: a. When a reader does not know much about the topic, he pays more attention to what the text says. b. Bottom- up processing proceeds from the smallest unit to bigger ones. c. Goodman's

  32. Math

    Select the Pairs of ratios that form a true proportion . Choose all that apply. A) 3:6 and 5:10 B) 4/12 and 6/18 C) 20:5 and 10:3 D) 24/36 and 8/9

  33. Discrete math

    TRUE OR FALSE ? Justify your answer. a. There exist real numbers a and b such (a+b)^2 = a^2 + b^2. b. For any real number x, there exists a unique number -x such that x + (-x) = 0. c. Any integer n is either odd or even. d. Any real number x can be written

  34. math

    1)Find the third iterate x3 of f(x)=x2-4 for an initial value of x0=2 A)-4 B)4 C)12 D)-12 I chose C 2)Use Pascal's triangle to expand:(w-x)5 This ones long so I chose w5-5w4x+10w3x3-10w2x4+5wx4-x5 3)Use the binomial Theorem to find the third term in the

  35. 7th grade math

    Which of these statements is true when you add a positive, nonzero integer and a negative, nonzero integer? A)The answer may be positive or negative. B)The answer is always negative. C)The answer is always zero. D)The answer is always positive.

  36. math

    Suppose these statements about two triangles are true: ∠G=∠S,∠R=∠T,and ∠M=∠N. Which statement is correct? Select all that apply. A.The sides are congruent. B.The sides are proportional. C.ΔGRM is similar to ΔNST D.ΔMGR is similar to ΔNST

  37. Probability

    For each of the following statements about events A,B, and C defined on a common sample space, determine whether it is true or false. 1. Suppose that A,B , and C are pairwise independent. Then, A∩C is independent of B . 2. Suppose that A,B, and C are

  38. chemistry

    Select only the True statements about buffer systems. Select all that are True. 1. Starting with NH3(aq) and adding a small amount of HCl(aq) will make a buffered solution. 2. The blood buffer, among other things, is supported by carbonic acid and its

  39. Java Programming

    1. Which of the following is not the name of a Java wrapper class from the Java API? A. Byte B. Int C. Long D. Boolean* 2. Which of the following statements will cause a compiler error? A. Integer i = new integer ( ) ;* B. Integer j = new integer ("5") ;

  40. biology

    Determine if the following statement is true or false. If true, choose TRUE. If false, choose the rewording that is true. Atoms of different elements come together to form a compound.

  41. algebra 1

    A sequence is defined recursively by the following rules: f(1)=3 f(n+1)=2⋅f(n)−1 Which of the following statements is true about the sequence? Select all that apply. f(3)=10 f(2)=5 f(4)=18 f(6)=66 f(5)=33

  42. Math

    Select all the true statements about identities. A) You may use proven identities to prove other identities. B) An identity is true only for restricted values of the variables. C) You can prove an identity by graphing the side to the left of the equal

  43. Math-Measure's & area

    1. Find the area of a parallelogram with base b and height h. B=82cm H=16.6cm a.**1,361.2 cm^2 b.6,724 cm^2 c.137.78 cm^2 d.98.6 cm^2 2.Identify all the sets to which the number belongs. Choose from rational number, irrational number, whole number, and

  44. math

    plz check my answers (and tell me what the answers are to the ones i get wrong or at least give me a clue t0 what the right answer is) According to the survey described here, what was the sample of the survey? “A recent telephone survey of 900 teenagers

  45. Social studies

    select the boxes in the table to indicate whether these statements are true about the life of ancient Sparta ancient Athens or both

  46. chemistry

    Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. Water has the highest boiling point. B. H-O-H and C-O-H bond angles are all equal to 1095. C. Dispersion forces affect all three molecules. D. Two lone pairs of

  47. geometry

    Which of the following statements is true?Select one of the options below as your answer:A. A 25o angle is congruent to a 25o angle. B. Two intersecting lines form two pairs of congruent angles. C. It is possible for congruent angles to add up to 90o. D.

  48. English12

    Below, you will find a list of sentences. After each sentence, select true if the topic of the statement is suitable to form the basis of a single persuasive paragraph. If the topic of the statement in your textbook is unsuitable for a single persuasive

  49. history

    Which of the following are true statements about the Fall Line? Choose All That Apply A.It marks the northern edge of the Piedmont. B.It is the last natural barrier for rivers on their way to the Atlantic. C.Many cities have developed along it. D.It

  50. Computers (RAM)

    Just giving this a shot, Which of the following statements about RAM are TRUE? Select all that apply. a) Any part of RAM can be accessed at any time. b) RAM is an area of a computer that holds programs and data that are waiting to be processed, to be

  51. Math

    Can anyone please explain why the one is not the correct answer? Let P(n,m) be a property about two integers n and m. If we want to disprove the claim that "For every integer n, there exists an integer m such that P(n,m) is true", then we need to prove

  52. elementary math

    i did use my poof to prove. im not sure im doing right. here is exercises: 'Suppose a,b,c are integers if a|b and a|c, then a|(b+c).' my answer: Proof. Suppose a|b ans a|c. By Definition of divisibility. we know a|b means there is an integer x with b= ax.

  53. math

    The volume of a rectangular prism is 1,000 cubic millimeters. Use the formula V equals l w hto determine which statements are true. Choose all that apply.

  54. Math

    please show me how to do this... A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 12 + 42 + 72 + . . . + (3n - 2)2 = n(6n^2-3n-1)/2 Also, please show

  55. Chemistry (Check)

    Classify each of these statements as always true, sometimes true, or never true 11)sometimes true 12)Never True 11)Scientific notation is used to express large numbers in convenlent form. 12)Siginificant figures include all the digits that can be known

  56. science

    which of the following statements are true as the moon goes from new moon to full moon phase? select all that apply

  57. discrete math

    Prove by contradiction that for any even integer a and any odd integer b, 4 does not divide (a^2 + 2b^2). Proposition: That 4k (k is any integer) = a^2 +2b^2, and a is even, and b is odd. But 4k is even (product of any integer and 4), so a^2 must be even,

  58. Maths Ms sue

    Select the TWO options that are TRUE statements about survey sampling. Select one or more: (1)Cluster sampling usually increases the sampling error compared to a simple random sample of the same size. (2)In stratified sampling, each member of the

  59. math

    a triangular prism has bases that are equilateral triangles which statements are true about the surface area of the triangular prism? choose all that apply

  60. physics

    Which one of the following statements about standing waves on a string is FALSE? Select one: a. All other frequencies are integer multiples of the first harmonic b. The first harmonic is the lowest frequency standing wave that can be formed. c. The first

  61. Microsoft word

    Suppose you want to delete an existing file from within Word. What would you do? A. Open the file in Word, click on Save As, and save the file to the Recycle Bin. B. Click on the File button, choose Save As, find the file, right click on the file, and

  62. History

    Roosevelt launched the second New Deal because of the failure of his initial policies to pull the country out of the Depression and because of the growing popular clamor for greater economic equality. True False *I think true The Great Depression had its

  63. math word problm

    WHAT IS THE TENTH DIDGIT IN THE QUOTIENT 120 / 11? A. 0 B. 1 C. 8 D.9 I CHOOSE 9 THATS WHAT I GOT IN LONG DIVISION. THE TEMPERATURE ON mARS REACHES 27DEGREE CELSIUIS DURING THE DAY AND -125 DEGREE CELSIUS AT NIGHT. WHAT IS THE AVERGE TEMPERATURE? NOT SURE

  64. MATH

    WHAT IS THE TENTH DIDGIT IN THE QUOTIENT 120 / 11? A. 0 B. 1 C. 8 D.9 I CHOOSE 9 THATS WHAT I GOT IN LONG DIVISION. THE TEMPERATURE ON mARS REACHES 27DEGREE CELSIUIS DURING THE DAY AND -125 DEGREE CELSIUS AT NIGHT. WHAT IS THE AVERGE TEMPERATURE? NOT SURE

  65. Algebra

    A positive integer minus a positive integer is always positive. This statement is sometimes true. For example, 17 – 5 = 12, but 15 – 20 = –5. post five other statements about the addition and subtraction of positive and negative integers, and ask

  66. math

    △GHJ∼△MNP Which statements are true? Select each correct answer. m∠J=m∠P (TRUE) ∠H≅∠N (TRUE) HJ¯≅NP¯ (it has the line over them) false GH=MN (TRUE) GJ/MP=GH/MN ( TRUE )

  67. Math

    1.Suppose we are given logic statements p, q, and r. a. If p → q and p → r, may we conclude that q → r? Answer yes or no and give a reason why. b. What is the converse of the following: not p → not q c. What is the contrapositive of r → q? d. The

  68. 6 grade math

    Choose all statements that are not true. a 20% of 20 is 4 b 30% of 30 is 9 c 40% of 50 is 15 d 50% of 110 is 60 e 60% of 60 is 360 The answer I choose is all of them. Is this correct.

  69. mat advance analysis

    True or False: If a|b and a|(b + 1), then a = ±1. [NOTE: Use this Theorem 3: If a|b and a|c, then a|(bx+cy) for any integers x and y. PROOF: Since a|b, there is an integer u such that b = au. Since a|c, there is an integer v such that c = av.

  70. Algebra II

    In an induction proof of the statement 4+7+10+...+(3n-1)=n(3n+5)/2 the first step is to show that the statement is true for some integers n. Note:3(1)+1=1[3(1)+5]/2 is true. Select the steps required to complete the proof. A)Show that the statement is true

  71. Statistics

    *Give all probabilities to two decimal places. Three daily newspapers are published in a large city. Suppose we have the following facts about the people in the city: 60% read Newspaper A. 34% read Newspaper C. 72% read Newspaper A or Newspaper B. 18% read

  72. science help

    The two tables below give the relative-risk of developing a stroke, in relation to blood pressure and body mass index. The data are based on a population of men from the USA. The values in the first table are given in comparison with the total population.

  73. Geometry

    Given the following sets, select the statement below that is NOT true. A = {b,l,a,z,e,r}, B = {b,a,l,e}, C = {a,b,l,e}, D = {l,a,b}, E = {a,b,l} E  C E  B D  B B  C C  A I chose the last one. Did I choose correctly?

  74. computer programing

    : Build a program that allows a user to select one of the following four menu options: enter new integer value, print pointer address, print integer address, and print integer value. For this program you will need to create two variables: one integer data

  75. C programming

    Build a program that allows a user to select one of the following four menu options: enter new integer value, print pointer address, print integer address, and print integer value. For this program you will need to create two variables: one integer data

  76. math

    After the gold and ivory statue of Athena was damaged, it was requested that Socrates select the most qualified craftsman to undertake the necessary repairs. He interviewed four recommended craftsmen. Their statements were not all truthful. However, each

  77. Computer Science

    Create a program that allows a user to select one of the following four menu options: a. Enter New Integer Value b. Display Pointer Address c. Display Integer Address d. Display Integer Value For this program you will need to create two variables: one

  78. math

    Mrs. Williams wants to determine which year-end celebration to choose for the students. She wants student input, so she needs to choose a sample of 20 students from the school. Which of the samples shown is a random sample? Select two answers. A. Choose

  79. Programming Language

    Create a method called countSelected, which takes an array of integers and an integer as input parameters and returns the number of occurences of the integer in the array. Example: data:{2, 1, 1, 8, 1, 0} select:1 ==> 3 public int countSelected (int[]

  80. Social Studies

    Please answer quickly!!!!! which of the following are true statements about the mayor in a strong mayor-council form of government? select all that apply

  81. math

    A) If the AEI increases by 3.0% a year and the RPI increases by 11.0% in the same year, then real earnings have gone down by 8% B) A new baby's parents are given £400 to invest for the baby, to be left untouched until she is 18 years old, in an account

  82. science

    A coin will be tossed 15 times, and I have to decide whether it lands heads with chance 0.6 or 0.3. I’ll test the hypotheses Null: p = 0.6 Alternative: p = 0.3 1. First, I will use a simple decision rule: if fewer than half the tosses are heads, I will

  83. math

    2)How many arrangements of the integers 1,2,3,...,n are there such that each integer differs by one (except for the first integer) from some integer to the left of it? Let's construct the arrangement. First consider 1, it can only have two placed next to

  84. Math

    Choose all statements that are true? a 15% of 15 is 1 b 5% of 50 is 10 c 10% of 100 is 10 d 2% of 100 is 5 e 3 % of 200 is 6 I picked a, c and e.

  85. Physics

    Pease evaluate the statements by choosing from these three statements Always true: the statement is true under any circumstances Not necessarily true: the statement may be true in some circumstances, but not in others Always false: under no circumstances

  86. Math

    I suggest if you cannot check them please don't comment. Not trying to be rude but pretty sure most u know what I mean. I am not here for answers just for someone to check my work 6th grade math. 1. -15 > -21 A. > B. < C. = Which number is greater than -24

  87. algebra

    Suppose 3s represents an even integer. What polynomial represents the product of 3s, the even integer that comes just before 3s, and integer that comes just after 3.

  88. Algebra

    Tell whether the each statement is sometimes, always or never true 1) If n is zero then x^-n is 1 2) If n is negative integer then x^-n=1 3) If x is zero then x^-n is 1 4) If n is an integer then x^-n>1

  89. MGT asap

    Select one of the following statements from p.221 of Supervision: Key Link to Productivity (8th ed.). Do you agree or disagree with the statement? Explain your reasons. 1. “The supervisor’s primary objective should be to avoid making mistakes in

  90. Math

    I am not here for answers just for someone to check my work 6th grade math. -15 > -21 Which number is greater than -24 A. -42 B. -27 C.-16*** D. -32 Which set of integers is ordered from least to greatest? A. -13,4,0,-8 B. -5,-2,3,1 *** C. -12,-8,-4,7 D.

  91. World History

    For questions 21- 30 you are given three items: a place, a person, and a thing. Choose True if all these are associated with one another, choose False if they are not: 21. Long March-Mao ZeDong-China True or False

  92. math analysis

    Disprove: For every integer a, if 8 divides a, then 6 divides a. im still stuck. i wrote: Disproof. Suppose 8|a. by definition of divisibility, we know 8|a means there is an integer b with a=8b. There is not value of y.

  93. Cultural Diversity

    Which of these statements is Not true? 1. Eye contact with the listener signals approval and consent in most Non-Anglo cultural groups. 2. African-American children are taught to look away from a peer while listening. 3. Eye contact in Asian-American

  94. math

    State which of the following are logical statements and then classify the statements as true or false. a) 1 + 4 = 6 b) She is in our class c) Butte is the capital of Montana d) 3 + x = x + 3

  95. discrete math

    Could someone help me with this induction proof. I know its true. given then any integer m is less than or equal to 2, is it possible to find a sequence of m-1 consecutive positive integers none of which is prime? explain any help is greatly appreciated

  96. Statistic

    Suppose you roll a die 10 times and record the proportion of sixes. Suppose you then conduct a simulation of this experiment, first 100 times, then 1000 times, and draw one histogram of the proportion of sixes found after 100 simulations and a second

  97. ctr 205

    Michael Jackson has had more plastic surgery than anybody else in california. You can bet he's had more than anybody in connecticut? choose from the following: (a) true (b)probably true (c) possibyl true or possbily false? I think that it's (a). what do

  98. math

    Which of these is a rational number A.)integer 150 B.)integer 441 C.)integer 200**** D.)integer 250

  99. maths

    I've put what i think are the answers at the bottom. Consider the inequality −2

  100. Economics

    The market demand in a Bertrand duopoly is P = 15 - 4Q, and the marginal costs are $3. Fixed costs are zero for both firms. Which of the following statement(s) is/are true? a.P = $3. b.P = $10. c. P = $15. d. None of the statements associated with this

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