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  1. English

    Fame shall sound thy praise from sea to sea which figure of speech

  2. chemistry

    1.)An aqueous solution is 34.0% H3PO4 by mass and has a density of 1.207 g/mL. What is the molarity of the solution? AND what is the molality?

  3. English grammar

    "Fame shall sound thy praise from sea to sea". Can this be considered an example of personification?

  4. chemistry

    in what ratio 0.2M NaCl and 0.1M CaCl2 solutions are to be mixed so that in the resulting solution, the concentration of negative ions is 50% greater than the concentration of positive ions?

  5. Physics

    A body of mass 3 kg experiences a force F=(2i +2j) N. If its initial velocity v=( -8i + 4j) m/s, then the time at which it will have a velocity just along the y-axis is ? (The expressions contain vector notations above them)

  6. Life orientation

    The impact of risky behaviour in social, emotional, physical and spiritual


    To what extent has the community have or been supporting communities affected by human right violations

  8. math

    a clock is set right 9:00 pm and it gains 1 min in the first three hours and loses 1 min in every fourth hour and follows the same pattern there on .identify the time the clock will show at 1:00 pm the next day .

  9. Math

    A bag contains 3 apples and 2 oranges. Another bag contains 2 apples and 4 oranges . A bag and a fruit are picked at random. The probability that the fruit will be apple is

  10. math

    what are 3 challenging math equations that equal 100?

  11. Math

    Find the value of an odd natural number x if LCM(x, 40)=1400

  12. Physics

    Three charges +2q, -q and -q are placed at the vertices of an equilateral triangle. What is the electric field and the potential at the circumcenter of the triangle?

  13. probability

    We are given a stick that extends from 0 to x . Its length, x , is the realization of an exponential random variable X , with mean 1 . We break that stick at a point Y that is uniformly distributed over the interval [0,x] . 1. Find joint PDF fX,Y(x,y) of X

  14. statistics

    Let 𝑋 and 𝑌 be independent positive random variables. Let 𝑍=𝑋/𝑌. In what follows, all occurrences of 𝑥, 𝑦, 𝑧 are assumed to be positive numbers. 1. Suppose that 𝑋 and 𝑌 are discrete, with known PMFs, 𝑝𝑋 and 𝑝𝑌.

  15. English

    Fame shall sound thy praise from sea to sea which figure of speech is this alliteration or personification??

  16. Math

    A random variable X is generated as follows. We flip a coin. With probability p, the result is Heads, and then X is generated according to a PDF fX|H which is uniform on [0,1]. With probability 1−p the result is Tails, and then X is generated according

  17. Statistics

    Suppose that X , Y , and Z are independent, with E[X]=E[Y]=E[Z]=2 , and E[X2]=E[Y2]=E[Z2]=5 . Find cov(XY,XZ) . cov(XY,XZ)= Let X be a standard normal random variable. Another random variable is determined as follows. We flip a fair coin (independent from

  18. Life Orientation

    What role do the media have in reporting human rights violations in a responsible manner?

  19. physics

    Three similar ideal cells (no internal resistances) supply current of 0.5 Ampere to a 10 Ohms resistor when they are in the parallel.How much current will they supply to the same risistor when they are connected in series aiding?

  20. Life Orientation

    Provide 4 strategies that communities could engage in to protest Gender based violence in their areas

  21. Mathematics

    Let Z be a nonnegative random variable that satisfies E[Z4]=4 . Apply the Markov inequality to the random variable Z4 to find the tightest possible (given the available information) upper bound on P(Z≥2) . P(Z≥2)≤

  22. Life orientation

    Evaluate to what extent the following institutions have supported communities affected by gender based violence: Government Community(NGOs)and religious oganization

  23. math, probability

    13. Exercise: Convergence in probability: a) Suppose that Xn is an exponential random variable with parameter lambda = n. Does the sequence {Xn} converge in probability? b) Suppose that Xn is an exponential random variable with parameter lambda = 1/n. Does

  24. Math

    A bus service center has 2 feed services that start together at 8 a.m. Bus A leaves at 15 minutes interval, while bus B leaves at 20 minutes interval. On a particular day , how many times do both services leave together from 8 a.m. to 11 a.m.?

  25. Life orientation

    Give a brief description from your local newspaper of recent (2019-2021) example of how gender based violence has displayed itself in community town?

  26. English

    As a school prefect of your school write a speech on what your school needs

  27. English

    I am sure I would have regretted it if I ________ to take the job. a.would agree b.would have agreed* c. did agree d.had agreed*

  28. Probability

    Let X be uniform on [0,1/2] . Find the PDF fY(y) of Y=X/(1−X) . For 0≤y≤1 : fY(y)= ?

  29. statistics

    1. A random variable X is generated as follows. We flip a coin. With probability p, the result is Heads, and then X is generated according to a PDF fX|H which is uniform on [0,1]. With probability 1−p the result is Tails, and then X is generated

  30. Probability

    CLT practice The random variables Xi are i.i.d. with mean 2 and standard deviation equal to 3. Assume that the Xi are nonnegative. Let Sn=X1+⋯+Xn. Use the CLT to find good approximations to the following quantities. You may want to refer to the normal

  31. Probability

    Bias and MSE We estimate the unknown mean θ of a random variable X with unit variance by forming the sample mean Mn=(X1+⋯+Xn)/n of n i.i.d. samples Xi and then forming the estimator Θˆn=13⋅Mn. Your answers below can be functions of θ and n. Follow

  32. probability

    Let 𝑋 and 𝑌 be independent positive random variables. Let 𝑍=𝑋/𝑌 . In what follows, all occurrences of 𝑥 , 𝑦 , 𝑧 are assumed to be positive numbers. 1. Suppose that 𝑋 and 𝑌 are discrete, with known PMFs, 𝑝𝑋 and 𝑝𝑌 .

  33. math, probability

    Exercise: CLT applicability Consider the class average in an exam in a few different settings. In all cases, assume that we have a large class consisting of equally well prepared students. Think about the assumptions behind the central limit theorem, and

  34. probability; math

    Let X be a continuous random variable. We know that it takes values between 0 and 6 , but we do not know its distribution or its mean and variance, although we know that its variance is at most 4 . We are interested in estimating the mean of X , which we

  35. Physics

    A 10 kg mass is hung from 2 light, inextensible strings such that the vertical string is attached to the top of the block at an angle 60 degree and the other string is attached straight horizontally to the adjacent side of the mass. How do we solve the

  36. Maths: Partial Differentiation

    1) If x = rcos theta and y = r sin theta, show that partial r / partial x = cos theta and find partial theta / partial x. 2) If z = sin theta.sin phi.sin gamma, and z is calculated for the values theta = 30degrees, phi = 45 degrees and gamma = 60degrees,

  37. Life orientation

    Describe Two Ways how social media platforms are abused

  38. Probability

    CLT Let Xn be i.i.d. random variables with mean zero and variance σ2. Let Sn=X1+⋯+Xn. Let Φ stand for the standard normal CDF. According to the central limit theorem, and as n→∞, P(Sn≤2σn−−√) converges to Φ(a), where: a= unanswered

  39. probability

    For each of the following sequences, determine the value to which it converges in probability. (a) Let X1,X2,… be independent continuous random variables, each uniformly distributed between −1 and 1. Let Ui=X1+X2+⋯+Xii,i=1,2,…. What value does the

  40. physics

    Two point charges are placed along a horizontal axis with the following values and positions: +6.0 µC at x = 0 cm and -24.0 µC at x = 60 cm. At what point along the x axis is the electric field zero?

  41. math

    Sam had a total of 80 foreign stamps and local stamps combined. After giving away 1/3 of his foreign stamps and 10 local stamps, he had an equal number of foreign stamps and local stamps left. How many local stamps did he have in the beginning?

  42. Physics

    In 1926, Johnny Weissmuller set the men’s world 400.0-m swimming record in 4.00 min, 57.0 s. In 1966, Martha Randall set the women’s record in 4.00 min, 38.0 s. By how many meters would Martha have been beaten Johnny if they had raced each other?

  43. statistics

    Thirty percent of the students in a high school face a disciplinary action of some kind before they graduate. Of those students, 40% go on to college. Of the 70% who do not face a disciplinary action, 60% go on to college. What percent of the students from

  44. Probability

    Let X and Y be independent positive random variables. Let Z=X/Y . In what follows, all occurrences of x , y , z are assumed to be positive numbers. 1) Suppose that X and Y are discrete, with known PMFs, pX and pY . Then, pZ|Y(z|y)=pX(?). What is the

  45. probability

    Let Sn be the number of successes in n independent Bernoulli trials, where the probability of success for each trial is 1/2. Provide a numerical value, to a precision of 3 decimal places, for each of the following limits. You may want to refer to the

  46. Math

    Three different numbers are chosen at random from the set {1,2,3,4,5}. The numbers are arranged in increasing order. What is the probability that the resulting sequence is an arithmetic sequence?

  47. unscramble

    If you rearrange the letters "CARNEF", you would have the name of? A) a dog B) a city C) a country D) a province

  48. Probability

    We have a red coin, for which P(Heads)=0.4, a green coin, for which P(Heads)=0.5 and a yellow coin for which P(Heads)=0.6. The flips of the same or of different coins are independent. For each of the following situations, determine whether the random

  49. Trigonometry

    a bicycle with 24inch diameter wheels is traveling at 15mi/hr. a) Find the angular speed of the wheels in rad/min. b)How many revolutions per minute do the wheels make?

  50. chemistry

    A commercially available sample of sulphuric acid is 15% H2SO4 by mass (density=1.10g/ml) Calculate the molarity ,normality and molality.

  51. Probability

    A simple CI Let θ be an unknown parameter, and let X be uniform on the interval [θ−0.5,θ+0.5]. Is [X−2,X+2] an 80% confidence interval? unanswered I form a confidence interval of the form [X−a,X+a]. What is the narrowest confidence interval of

  52. math

    A circular track is 1000 yards in circumference. Cyclists A, B, and C start at the same place and time, and race around the track at the following rates per minute: A at 700 yards, B at 800 yards, and C at 900 yards. What is the least number of minutes it

  53. L.o

    Five INTERVIEW questions of service delivery protest

  54. MATHS GRade 10

    MAtHS gRade 10 AssIgnmENT MEMo TerM 2 /2021

  55. Physics

    an empty rd bottle weighs 60 grams but weighs 120 gram when completely filled with water when the bottle is completely with an unknown liquid it weighs 90 gram what will be the volume of the rd bottle

  56. maths

    a 4 cm long chord subtends a central angle of 60° . the radial segment of this circle is

  57. Probability

    Estimator properties We estimate the unknown mean θ of a random variable X (where X has a finite and positive variance) by forming the sample mean Mn=(X1+⋯+Xn)/n of n i.i.d. samples Xi and then forming the estimator Θˆ=Mn+1n. Is this estimator

  58. math

    Information about a play took up 1/3 of the pages in the program. Information about the actors took up 1/4 of the remaining pages. Information about the director, the producer, and the designer took up 2 pages, and the same number of pages devoted to the

  59. probability

    For any given flight, an airline tries to sell as many tickets as possible. Suppose that on average, 10% of ticket holders fail to show up, all independent of one another. Knowing this, an airline will sell more tickets than there are seats available

  60. Maths

    if 5 is added to each observation of data what will be the difference in the median Fast please

  61. Probability

    We saw that if we want to have a probability of at least 95% that the poll results are within 1 percentage point of the truth, Chebyshev's inequality recommends a sample size of n=50,000 . This is very large compared to what is done in practice. Newspaper

  62. Maths

    We have Rs.100/-.If we spend Rs.100/-and balance is Rs.102/-,show how is Rs.2/-extra Spent Balance Day 1 Rs 40 Rs 60 Day 2 Rs 30 Rs 30 Day 3 Rs 18 Rs 12 Day 4 Rs 12 Rs 00 -------- -------- Total Rs 100 Rs102......?

  63. Probability

    By the argument in the last video, if the Xi are i.i.d. with mean μ and variance σ2 , and if Mn=(X1+⋯+Xn)/n , then we have an inequality of the form P(|Mn−μ|≥ϵ)≤aσ2n, for a suitable value of a . a) If ϵ=0.1 , then the value of a is:

  64. science

    How many hydrogen atoms are present in 32 grams of methane?

  65. Algebra

    The perimeter of the rectangle below is 74 units. Find the length of side AB . Write your answer without variables. DC (top) 4z-1 CB (right side) 3z+3 AB (bottom) unknown

  66. Operations Management

    Joe Henry's machine shop uses 2,500 brackets during the course of a year. These brackets are purchased from a supplier 90 miles away. the following information is known about the brackets. annual demand 2,500 holding cost per bracket per year $1.50 order

  67. physics

    vector A has magnitude 8units and makes an agle of45°with the positive x-axis vector B also has the same magnitude of 8units and directed along the negative x-axis determine the magnitude and direction of A+B?

  68. Life orientation

    Investigate the influence of self esteem and teenagers participating in risky behaviour

  69. Life Orientation

    Define the concept "risk behaviour" and explain why it is important for teenagers to investigate and be knowledgeable about it

  70. Life Orientation project for 2021 june term-2

    1.1.1. Define and describe gender-based violence. 1.1.2. Give a brief description from your LOCAL Newspapers of a recent (2019-2021) example of how this problem has displayed itself in your community/town. 1.1.3. State your own position on this specific

  71. precalculus

    Outside temperature over a day can be modelled as a sinusoidal function. Suppose you know the temperature is 80 degrees at midnight and the high and low temperature during the day are 90 and 70 degrees, respectively. Assuming t is the number of hours since

  72. Life orientation

    Write personal mission statement that clearly indicates your own position in engaging in service delivery protests that will be a good model to youth

  73. maths

    Sundaram joined a company for a fixed salary per month. After few months, the management felt happy with his work and multiplied his salary by some n times. This happened every few months and his salary kept getting multiplied and he reached a salary of

  74. Probability

    Confidence interval interpretation Every day, I try to estimate an unknown parameter using a fresh data set. I look at the data and then I use some formulas to calculate a 70% confidence interval, [Θˆ−,Θˆ+], based on the day's data. Are the following

  75. English

    Write a debate on the topic;Boys should not help in the kitchen.Speak for or against the motion.

  76. math

    one number is 2 more than 3 times another . their sum is 22 . find the number 4,18

  77. Probability

    Natural estimators The random variables Xi are i.i.d. and satisfy E[X2i]=θ. Use a natural estimator to calculate an estimate of θ based on the values X1=1, X2=3, X3=−1, X4=2, X5=0. unanswered In order to calculate confidence intervals around your

  78. Economics

    Identify and quantify at least four social cost and four social benefits for each project.

  79. life orienation

    draw up any five interview question you will to evaluate the understanding of service delivery protest by the learners in school?

  80. math

    There are eight different two-digit numbers: AD, BA, BG, CE, DB, DH, EF and FC. Each is less than 70 and divisible by 7. Each of the distinct letters represents a different digit. The same letter represents the same digit. Given E = 5, what is G?

  81. Calculus

    Find a cubic function f(x) = ax^3 + bx^2 + cx + d that has a local maximum value of 3 at x = −2 and a local minimum value of 0 at x = 1.

  82. math

    Given: ∆ABC is isosceles m∠ACB = 120° m∠BMC = 60° CM = 12 Find: AB M is on line segment AB I saw that someone has already post this question, but I didn't find the answer so I reposted it to c if someone could put the answer

  83. Chemistry

    Element A (atomic weight 12.01) and element B (atomic weight 16) combine to form a new substance X. Two moles of B combine with one mole of A. Then the weight of one mole of X is........

  84. math

    A shopkeeper bought an article for rs 360. The profit made by the shopkeeper after selling it after 11×1/9% discount is rs 40. Find the marked price (in rs)of the article.

  85. physics

    the elecric potential at a certain point is space is 12 V. What is the electric potential energy of a -3.0uc charge placed at that point? is it +36uj?

  86. Chemistry

    Balance the following redox equations. All occur in Acidic solutions. 1. Cr2O7^2-^ + C2O4^2-^ -> Cr^3+^ + CO2 2. Cu + NO3^-^ -> CU^2+^ + NO 3. MnO2+ HNO2 -> Mn^2+^ + NO3^-^ 4. PbO2 + Mn^2+^ + SO4^2-^ -> PbSO4 + MnO4^-^ 5. HNO2 + Cr2O7^2-^ -> Cr^3+^ +

  87. Maths

    Raju read 32 pages from a book containing 150 pages. Prachi read (2/5) part of the same book. Who read more pages and how many???

  88. Probability

    CLT for the binomial Let X be binomial with parameters n=49 and p=1/10. The mean of X is: unanswered The standard deviation of X is: unanswered The CLT, together with the 1/2-correction, suggests that P(X=6)≈ unanswered You may want to refer to the

  89. Math

    Suppose that X, Y, and Z are independent, with E[X]=E[Y]=E[Z]=2, and E[X2]=E[Y2]=E[Z2]=5. Find cov(XY,XZ).

  90. math

    Mr. Jones got a loan for a sum of money, and at the time of repayment he owned $75.00 in interest. Mr. Brown borrowed three times the amount of money Mr. Jones had borrowed at the same rate of interest for twice as long a time. How much interest does Mr.

  91. Physics

    a ball is thrown vertically upward from the ground with the velocity of 30m/s. a) how long will it take to rise to its highest poitn? b) how high does the ball rise? c) how long after projection will the ball have a velocity of 10m/s? d) what is the total

  92. Physics

    Starting from rest, a wheel undergoes constant angular acceleration for a period of time T. At what time after the start of rotation does the wheel reach an angular speed equal to its average angular speed for this interval?

  93. Life Orantaition

    State your position on this specific problem in South Africa

  94. Life orientation

    Give brief description your local newspaper of recent 2019 2021 example of how problems has displayed itself your community town

  95. Mathematics

    A Ferris wheel of diameter 16 m rotates at a rate of 0.4 rad/s and is lifted 2m off the ground. If a platform is made so passengers can board at the centre height of the ferris wheel as it goes up, a) Determine the amount of time it takes to complete one

  96. physics

    1.) Draw a set of 1.5-volt cells in a series circuit so that the total battery voltage is 9 volts. A.) how many cell does it take? B.) show polarity connection. C.) suppose you connected one of the cells in part (a) so that it was backwards. what would the

  97. Probability

    A couple plans to have three children. What is the probability that a) they have all boys? b) they have at least one girl?

  98. math

    One shelf at Cover-to-Cover Bookstore contains copies of several books on the best-seller list. Half of the books on the shelf are copies of the Number 1 best- seller. Of the remainder, 1/4 are copies of the Number 3 book. The rest are copies of the Number

  99. physics

    A 10 ohms resistor has a constant current. If 1200C of charge flow through it in 4 minutes what is the value of the current? A) 3.0 A B) 5.0 A C) 11 A D) 15 A E) 20 A ok I used the I=Q/t, 1200C/240s to get 5A which is an answer. You said I was right but

  100. maths

    the gcf of two numbers is 3 and lcm is 180.if one of the numbers is 45,what is the other number?