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photoshop1234 [79]
3 years ago
9

La altura de un triángulo equilátero cuyo perimetro mide 45 cm ?

Mathematics
1 answer:
OLga [1]3 years ago
3 0

Search it up!!!!!!!!

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answer is 13

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A literature professor decides to give a 10-questiontrue-false quiz to determine who has read an as-signed novel. She wants to c
Darya [45]

Answer:

The teacher should set the score 7 as the lowest passing grade.

Step-by-step explanation:

Let <em>X</em> = number of correct guesses.

All the questions are of true-false format.

The probability of getting a correct answer is, <em>p</em> = 0.50.

The total number of questions is, <em>n</em> = 10.

The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> = 10 and <em>p </em>= 0.50.

The probability mass function of <em>X</em> is:

P(X=x)={10\chose x}0.50^{x}(1-0.50)^{10-x};\ x=0,1,2,3...

Now the teaches chose the grading scheme such that the probability of passing a student who guesses on every question is less than 0.05.

Then the probability of failing such a students is at least 1 - 0.05 = 0.95.

Compute the probability distribution of <em>X</em>.

Consider the probability distribution attached below.

The value of <em>x</em> for which P (X ≤ x) is at least 0.95 is, <em>x</em> = 7.

So the teacher should set the score 7 as the lowest passing grade.

7 0
2 years ago
Can somebody help me with this pleaseee
AysviL [449]

Answer:

lesser x = -4.73205, so -4.73

greater x = -1.26795, so -1.27

7 0
2 years ago
What is the angle relationship between ZBAC and ZDCA?<br> F<br> R<br> G
horsena [70]

The angle BAC and DCA are alternate interior angles , Option D is the right answer.

What are Parallel Lines ?

The lines in a plane which never intersect and are at a same distance always are called Parallel Lines.

In the given question it is given that there are two lines FG and DE

The lines are parallel to each other , and transversal are AC and BC .

The angle BAC and DCA are alternate interior angles as AC is the transversal of the parallel lines.

Option D is the right answer.

To know more about Parallel Lines

brainly.com/question/16701300

#SPJ1

4 0
1 year ago
If a figure is dilated by a factor of 1.5, the perimeter of the figure will change by a factor of____
LenaWriter [7]

Answer:

Sir did you get the answer yet i may need help pls with um the 1.5 , area question and the 1.5 perimeter please?

Step-by-step explanation:

5 0
3 years ago
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