# Questions Asked onJuly 23, 2019

1. ## probability

Let Θ be a Bernoulli random variable that indicates which one of two hypotheses is true, and let P(Θ=1)=p. Under the hypothesis Θ=0, the random variable X has a normal distribution with mean 0, and variance 1. Under the alternative hypothesis Θ=1, X

2. ## Math/Physics

A block-and-tackle pulley hoist is suspended in a warehouse by ropes of lengths 2 m and 3 m. The hoist weighs 340 N. The ropes, fastened at different heights, make angles of 50° and 38° with the horizontal. Find the tension in each rope and the magnitude

3. ## history

Which identify protestant argument that challenge the sanctity and infallibility of the catholic papacy

4. ## Math

Alice has two coins. The probability of Heads for the first coin is 1/4, and the probability of Heads for the second is 3/4. Other than this difference, the coins are indistinguishable. Alice chooses one of the coins at random and sends it to Bob. The

5. ## Math

A defective coin minting machine produces coins whose probability of Heads is a random variable Q with PDF fQ(q)={5q4,0,if q∈[0,1],otherwise. A coin produced by this machine is tossed repeatedly, with successive tosses assumed to be independent. Let A be

6. ## math

Five males with a particular genetic disorder have one child each. The random variable x is the number of children among the five who inherit the genetic disorder. Determine whether the table describes a probability distribution. If it​ does, find the

7. ## statistics

Multiple-choice questions each have five possible answers left parenthesis a comma b comma c comma d comma e right parenthesis​, one of which is correct. Assume that you guess the answers to three such questions. a. Use the multiplication rule to find

8. ## statistics

Several psychology students are unprepared for a surprise​ true/false test with 18 ​questions, and all of their answers are guesses. a. Find the mean and standard deviation for the number of correct answers for such students. b. Would it be unusual for

9. ## Chemistry

My question was A person’s blood cholesterol level is 245 mg/dL. (1g=1000mg; 1L=1000mL). Show all calculations. What is the cholesterol concentration in ppT (part per thousands) and ppm (parts per million)? And your answer was For ppm just remember that

10. ## Microeconomics

Define the following terms using graths&mathmaticals experessions of budget line:utility &util ?

11. ## math

Beverly sells mangoes. She sold half her mangoes plus half a mango last Monday. Then she sold half her remaining mangoes plus a mango last tuesday. Again she sold half of her remaining mangoes plus half a mango on wednesday. She then sold the remaining

12. ## math

How much will \$8500 be worth if it is invested for 10 years at 6.5%/a, compounded weekly?

13. ## math

A mass is attached to a hanging spring and undergoes simple harmonic motion about an equilibrium location at y = 0. The displacement of the mass (in cm) is given by y=10cos(πt/6) where t is the number of seconds since the mass was initially pushed or

14. ## Physics

An air column 10cm in length is trapped into the sea end of a capillary tube by a 15cm column of mercury with the tube held vertically as shown above. On inverting the tube the air column becomes 15cm long. The atmospheric pressure during the experiment is

15. ## Geometry

Use the graph to answer the question. Parallelogram ABCD and its image. The coordinates of the vertices are listed in the long description. © 2016 FlipSwitch. Created using GeoGebra. Which series of transformations correctly maps parallelogram ABCD to

16. ## Physics

THE IMAGE ABOVE SHOWS A CART WITH A MASS OF 3.00KG SLIDING FROM REST DOWN A RAMP AND MOVING UP AT THE OTHER SIDE AT POINT A THE CART 1S 17.0M OFF THE GROUND AT POINT B IT IS 9.00M OFF THE GROUND WHATS ITS SPEED AT POINT B

17. ## Math

findth e im ag e o f th eli n e. y=3x+4.after.reflectioneintheliney=2x -3?

18. ## Physics

A ray of light which is incident in air on the surface of the glass block is deviated through 15 degree. The angle of incidwnce in air is 60 degree.What

19. ## Physics

A gun of mass 0.1kg has a bullet of mass 0.1kg the bullet leaves the piston when fired at a velocity of 200m/s find the final velocity?

20. ## Math

I need help with this question. A student used the area of a squre to find its side length. which probably describes the numerical result? A) rational B) irrational C) negative D) integer My work explanation: let’s say of area of a square is 16 then

21. ## Maths

For a prime number greater than 5, what can the last digit be ? Explain your answer.

22. ## Chemistry

There are several technological applications for the transuranium elements (Z > 92). An important one is in smoke detectors, which can use the decay of a tiny amount of americium-241 to neptunium-237. What subatomic particle is emitted from that decay

23. ## Physical Science

What element has 6 valence electrons and 6 energy levels?

24. ## Calculus

The function f is continuous on the interval [3, 13] with selected values of x and f(x) given in the table below. Use the data in the table to approximate f ′(3.5). x 3 4 7 10 13 f(x) 2 8 10 12 22 Please HELPP! Thank you

25. ## Science

What does the air in the living room of a man weigh if its dimensions are 3.2m,4.8m and a height of 3.5m respectively, When the air density is 1.21kg m at1.0at m and g = 10.0ms

26. ## Programming

The question is: You have recently been employed by a company that specialises in application development. Your first project is to help them design an application using Python that will help shoppers determine which products to buy at the supermarket and

27. ## Algebra

Expand and collect like terms: 5 + (3x - 4)

28. ## Algebra

A rectangle's length is 4 more than its width, x. Find an expanded expression for its area.

29. ## maths

2x+3-4+5=7x?

asked by Usara racistina El albu
30. ## Science

A 60 kilogram tourist tries horseback riding in tagaytay.The horse has a mass of 500 kilogram.He moves around a circular path with a radius of 10 meter at a rate of 5 meter per second.Compute the centripetal force.

31. ## Algebra

Jill pays tax at 20c in the dollar for every dollar earned over \$10 000. If Jill earns \$x and x > 10 000, write an expression for Jill's tax in expanded form.

32. ## Calculus

Suppose f(x) = (x-1)^2/x+1 if x < 2 (x^2-2x-8)/x-4 if 2

33. ## Science

Calculate the centripetal force on a 2100kg car rounding a curve of 175m radius at speed of 60kph

34. ## Earth science

What surface ocean current is located at 30 degrees north and 75 degrees west?

35. ## math

write 2:15 in the afternoon in Roman numerals

36. ## Career guidance

I need some assist seriously I don't know which career or job is suitable for me I've been thinking about this matter I have, which job can I do or career can i do if I'm doing this subjects “history, geography, mathematics literacy, tourism... "? Please