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Marina CMI [18]
3 years ago
8

What type of angle is

Mathematics
2 answers:
mash [69]3 years ago
8 0

Answer:

I'm really sorry I can't tell you the answer because you have to measure the angle by yourself using a protractor. But I gave you information about types of angles if you got the degree of angles ( e.g 90 degrees). Hope it helped.

Step-by-step explanation:

acute angle-an angle between 0 and 90 degrees  

right angle-an 90 degree angle  

obtuse angle-an angle between 90 and 180 degrees  

straight angle-a 180 degree angle  

Natalija [7]3 years ago
8 0

For this case we have that by definition:

<em>Sharp angle: It is less than 90 degrees.</em>

<em>Flat angle: Measures 180 degrees.</em>

<em>Obtuse angle: Measures more than 90 degrees</em>

The figure shows a pair of angles, each measuring 77 degrees. Now they enter the definition of acute angles.

To find the angle CEB we subtract:

180-77 = 103 degrees

This is the same measure of angle AED.

These would be obtuse angles.

Answer:

Sharp angles (77 degrees)

Obtuse angles (103 degrees)

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Using the binomial distribution, it is found that there is a 0.4096 = 40.96% probability that he answers exactly 1 question correctly in the last 4 questions.

<h3>What is the binomial distribution formula?</h3>

The formula is:

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C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

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Considering that there are 4 questions, and each has 5 choices, the parameters are given as follows:

n = 4, p = 1/5 = 0.2.

The probability that he answers exactly 1 question correctly in the last 4 questions is P(X = 1), hence:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 1) = C_{4,1}.(0.2)^{1}.(0.8)^{3} = 0.4096

0.4096 = 40.96% probability that he answers exactly 1 question correctly in the last 4 questions.

More can be learned about the binomial distribution at brainly.com/question/24863377

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2 years ago
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Find the exact value by using a half-angle identity. . cos(5π/12).
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