Questions Asked on
May 16, 2020

  1. probability

    13 people study French, 15 people study German and there are 21 people in total. What is probability to chose person who takes both of the languages?

    asked by help
  2. Chemistry

    If milk has a density of 1.03 g/mL, what is the mass of 6.00 qt, reported in kilograms?

    asked by HARSHIN
  3. Probability

    Let X1 , X2 , X3 be i.i.d. Binomial random variables with parameters n=2 and p=1/2 . Define two new random variables Y1 =X1−X3, Y2 =X2−X3. We further introduce indicator random variables Zi∈{0,1} with Zi=1 if and only if Yi=0 for i=1,2 . Calculate

    asked by AK
  4. maths

    With each n-trough there are n balls, each with integer diameter at most n. Two or more balls may have the same diameter. They are rolled down the trough one at a time, not necessarily in size order. If a ball drops through a hole, it triggers a trapdoor

    asked by oscar
  5. Algebra

    How many 4-digit multiples of 7 are there?

    asked by Helen
  6. Mathematics

    I am studying for my exams and do not know if I tackled correctly this word problem. Would appreciate any help. Thank you "Tony and Doris wish to fence off part of their garden to create a rectangular enclosure for their dogs. One side of the enclosure

    asked by Joann
  7. History

    How did the Chinese government react to the fall of Communist Russia? A. When Soviet states withdrew from the USSR, Chinese diplomats sought to acquire Russian states located along the Chinese border. B. The Chinese government predicted that its own system

    asked by Ally
  8. Chemistry

    The method of standard additions was used to determine nitrite in a soil sample. A 1.00-mL portions of the soil extract sample was transferred to four 25-mL volumetric flasks. To each flask, increment volumes of a 1.00 x10-3 M nitrite was added according

    asked by The anonymous
  9. Mathematics

    A man left of his estate in kerugoya to his wife and to each of his two sons the remainder was to be shared equally among his six brothers if the estate was worth shs 3456000 how much did each of those people get?

    asked by Mariam
  10. Probability

    Let X and Y be independent random variables with zero means, and variances 1 and 2, respectively. Let U=X+Y and V=X+2Y . Find the coefficients a and b of the Linear Least Mean Squares (LLMS) estimator VˆL=aU+b of V based on U . find a and b.

    asked by ram121
  11. mathematics

    1 What is the chance that you pick a vowel from the name DELCAMP if you pick at random? 1 What's the chance that you pick a consonant from the name MONROY if you pick at random? REDUCE YOUR FRACTION. Y is a consonant is this case. 1 What's the chance of

    asked by Gavin
  12. Math

    x^13 / x^2 (This is a fraction) A: x^13/2 B: x^15 C: x^11 D: x^26

    asked by Hola Amigo
  13. Math

    Write an algorithm prompts a user to enter 15 masses of goats and display average mass

    asked by madalena
  14. Probability

    Problem 1. Starting at time 0, a red bulb flashes according to a Poisson process with rate λ=1 . Similarly, starting at time 0, a blue bulb flashes according to a Poisson process with rate λ=2 , but only until a nonnegative random time X , at which point

    asked by AK
  15. science

    in the equation, KCL+Pb(No3)2+PbCl2. what is reducing and what is being oxidized

    asked by Anonymous
  16. Mathematics

    Construct a triangle ABC such that BA=10cm

    asked by Hannah
  17. Physics

    An object of mass 9.0 kg is moving due west with a uniform speed of 4.0 m/s. It suddenly explodes into two parts having masses of 6.0 kg and 3.0 kg. Just after the explosion, the 3.0 kg mass has a velocity of 15 m/s due west relative to the Earth's

    asked by Rohan
  18. English

    I have to make a comic strip based on any episode of Tom Sawyer book of class-7 NCERT

    asked by Maitri
  19. Algebra

    Let x, y, and z be distinct nonzero real numbers and x + (1/y) = y + (1/z) = z + (1/x) Find all possible values of xyz. I don't even know where to start! Any help is appreciated, thank you :)

    asked by Dog_Lover
  20. probability

    Tickets numbered from one to 40 are mixed up and one is drawn. What is the probability that number is divisible by 3 or 5? What is the probability that number is divisible by 3 and 5?

    asked by help
  21. Probability

    Let X1 , X2 , X3 be i.i.d. Binomial random variables with parameters n=2 and p=1/2 . Define two new random variables Y1 =X1−X3, Y2 =X2−X3. We further introduce indicator random variables Zi∈{0,1} with Zi=1 if and only if Yi=0 for i=1,2 . Calculate

    asked by ram121
  22. History

    what is Vj day : Victory Over Japan?

    asked by ariana
  23. Math

    In how many ways can a 6 people sit in a toboggan (sled) if only 2 can drive?

    asked by Skye
  24. history

    To boost wartime production and help the Allies, the War Manpower Commission-recruited women for jobs -forced women to work at home -encouraged soldiers to return home to work -conscripted more soldiers into the military

    asked by Hola Amigo
  25. English

    In “Brave New World" what are the ways of obtaining instant gratification aside from soma?

    asked by gm
  26. chemistry

    How is column chromatography and planar chromatography methods are performed?

    asked by Robbie
  27. chemistry

    I have a question in one of my assignments but I don't know how to answer it, the question is "The bigger the ion, the slower. The smaller the ion, the faster mobility. Which side of the 0.5 M NaBr | 0.5 M KBr junction will be more negative? Explain" Thank

    asked by sette
  28. math

    Tutors on jiskha help you 57 times and there are over 10 tutors. how many questions did botaman ask. answer= jiskha is the best. you are always helping people 24/7 so if you dont mind me asking, how are you? are you stressed? do you enjoy what you do? you

    asked by botamam
  29. physics

    A disk having moment of inertia $$100kg\cdot m^2$$ is free to rotate without friction, starting from rest, about a fixed axis through its center. A tangential force whose magnitude can range from \(F = 0\) to \(F = 50.0\) N can be applied at any distance

    asked by mcway
  30. Science

    In modern injection molding units, why is a reciprocating screw used instead of a plunger? Give 3 reasons how this advantage is achieved.

    asked by hewhomustbenamed82
  31. molecular biology

    Experiments have shown that a defective gene gives a defective enzyme. Hence there is argument of that one gene is responsible for making one enzyme. Discuss whether this statement is correct or not. Give ONE example to support.

    asked by Alex
  32. biology

    Gilbert is doing a SDS-PAGE experiment and he cannot find sodium dodecyl sulfate (SDS) for the experiment. He wants to use the household detergent to replace SDS and he said that the cancer cells are easily being lysed even by household detergent. Will he

    asked by Joe
  33. Geometry

    What is the maximum ha (vertical height) of the ABC triangle given its perimeter = 19 m and hb = 7 m (lateral height)?

    asked by Jesus
  34. Probability

    Problem 1. Note: You may find the following useful for this problem. For i.i.d. random variables Xi and a nonnegative random variable N that is independent of all the Xi 's: E[∑i=1NXi] = E[N]E[X1] Var[∑i=1NXi] = E[N]Var[X1]+(E[X1])2Var(N). Each phone

    asked by AK
  35. Probability

    Let X and Y be jointly continuous nonnegative random variables. A particular value y of Y is observed and it turns out that fX|Y(x∣y)=2e−2x , for x≥0 . Find the LMS estimate (conditional expectation) of X . unanswered Find the conditional mean

    asked by AK
  36. Probability

    Let X and Y be independent random variables with zero means, and variances 1 and 2, respectively. Let U=X+Y and V=X+2Y . Find the coefficients a and b of the Linear Least Mean Squares (LLMS) estimator VˆL=aU+b of V based on U . a= unanswered b= unanswered

    asked by AK
  37. math

    A regular deck of cards has total of 52 cards. (Note: Aces count as 1.) If one card is drawn at random from the deck, find the probability of the following events: a It is a diamond

    asked by help
  38. Mathematics

    u=v+2t

    asked by Anonymous
  39. Mathematics

    u=v+2t make t the subject of the formula

    asked by Anonymous
  40. Mathematics

    Solve 2x+7>+x +19 and can you do the same if 2 was 3? 2nd question is write an expression if 3 was open inequality and line continues past negative 5

    asked by Jacky
  41. Probability

    Let X and Y be independently random variables, with X uniformly distributed on [0,1] and Y uniformly distributed on [0,2] . Find the PDF fZ(z) of Z=max{X,Y} 1. For z2 : find fZ(z) 2. For 0≤z≤1 : find fZ(z)

    asked by ram121
  42. Math

    Let X and Y be independently random variables, with X uniformly distributed on [0,1] and Y uniformly distributed on [0,2] . Find the PDF fZ(z) of Z=max{X,Y} find fZ(z) 1. For z2 : 2. For 0≤z≤1 : 3. For 1≤z≤2 :

    asked by ram121
  43. Science

    An acrobat performs with a swing, as shown in the diagram . Which of these most likely happens as the acrobat moves from Point 1 to Point 2? A. Potential energy decreased and kinetic energy increases. B. Potential energy increases and kinetic energy

    asked by nonymouse
  44. history

    what was a big difference between the Texas Constitution of 1836 and the Texas Constitution of 1845

    asked by Plz help
  45. Math

    convert each measurement to meters liters or grams 8kl

    asked by Batman
  46. Statistics

    In a survey conducted to determine the costs of holidays, 196 individuals were randomly sampled. Each was asked to assess the total cost of his or her most recent holiday. The average cost was $1386.

    asked by DORU
  47. Mathematics

    Make d the subject of the relation . R= d^2/8h+h/2

    asked by Joana
  48. History

    Which is the best description of how climate impacted westward expansion? A) As the region became more and more populated, the way of life of the Native Americans changed. B) Trails through the mountains followed passes that were often impassible during

    asked by wade
  49. Math

    Out if 56 coins, 18 are rare. If you select 10 of the coins, what us the probability that all of them are rare ? P(picking rare coin) = 18/56 = 0.3214 q= 1-p = 1-0.3214= 0.6786 , number of trials = 10 a) All rare coins: ncr= 10c10= n!/(r!*(n-r) =

    asked by Brandon
  50. Algebra

    The amount of eel fishing in Europe fell by 95% from 1980 to 2010. How many eels learn there will be left in 2030, if the percentage decrease per year is unchanged over time.

    asked by Mike
  51. History

    What is the significance of Hiroshima and Nagasaki (1945) ???

    asked by ariana
  52. Physics

    A car of mass M, traveling at speed v collides head-on with a truck of mass 2M & traveling in the opposite direction at the same speed. Both vehicles lock together and come to a stop. Which, if either, has the most momentum upon impact? Which, if either,

    asked by Kaia
  53. psw

    Your client is 84 and has rheumatoid arthritis. Each week the RN distributes her medication for each day in a docette. Today your client’s joints seem very inflamed and she asks you to open her docette for her. i need the answer

    asked by kaur
  54. Science

    Is gravity a contact or field force?

    asked by Pepsi Zero Sugar
  55. Mathematics

    find the first four terms using the binomial theorem 1/(sqrt(x^2 - (3/y))

    asked by Rethabile Milisi
  56. Geometry

    In right triangle ABC,

    asked by Jose
  57. Physics

    What causes the coriolis effect?

    asked by Sunita
  58. Science

    Calculate the cost to run a washing machine of 220V with the current of 20A for Two hours, if the price of electricity is 22 cent per kW.h

    asked by Pearl