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Katyanochek1 [597]
3 years ago
6

Laila guesses on all 20 questions of a multiple-choice test. each question has 4 answer choices. what is the probability of a su

ccess and a failure for this experiment?
Mathematics
2 answers:
bazaltina [42]3 years ago
7 0

Answer:

P(Success)=1/4

and P(Failure)=3/4

Step-by-step explanation:

It is given that:

Laila guesses on all 20 questions of a multiple-choice test.

each question has 4 answer choices.

Now, we are asked to find the probability of a success as well as failure.

We know that a success is obtained when Laila correctly answers the question and a failure is obtained when she wrongly answers the question.

The success means that she marks the correct answer and failure means she marks the wrong answer.

Hence, for each question we have one correct choice and 3 incorrect choice.

Hence,

P( success)=1/4

and

P(failure)=3/4

dangina [55]3 years ago
3 0
P(success)=1/4;P(failure)=3/4 i think
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Mazyrski [523]

Answer:

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Step-by-step explanation:

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3 years ago
Solve the equation<br>x+4= -12+5x​
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3 years ago
Line segment AB is shown on a coordinate grid: A coordinate grid is shown from positive 6 to negative 6 on the x-axis and from p
serious [3.7K]

Answer:

A′B′ and AB are equal in length.

Step-by-step explanation:

Given that the location of the points are at A(1, 3) and B(5, 3).

Transformation is the movement of a point from its initial location to a new location. Types of transformation are reflection, rotation, translation and dilation.

Rigid transformation are transformation that preserves the shape and size when performed. Types of rigid transformation are reflection, rotation, translation.

Hence if AB is rotated 270 degrees counterclockwise about the origin to form A′B′, both A′B′ and AB are equal in length because rotation is a rigid transformation.

If A(x,y) is rotated 270 degrees counterclockwise about the origin, it becomes A'(y,-x).

Hence if AB is rotated 270 degrees counterclockwise about the origin to form A'(3, -1), B'(3, -5)

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5 0
3 years ago
a hose fills a hot tub at a rate of 4.97 gallons per minute. How many hours will it take to fill a 336-gallon hot tub?​
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Answer:

1.12675hours approximately

Step-by-step explanation:

If the tub was 4.97 gallons it would take 1 minute Right?

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6 0
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A) Calculate the value of x.
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