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Darina [25.2K]
3 years ago
13

Find the value of x, y, and z.

Mathematics
1 answer:
horsena [70]3 years ago
7 0
X= 45
z=45
y=90
180-135 is 45 degrees for Z. X is also 45 while y then becomes 90. as 90+45+45=180.
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Answer:

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The figure shows the calculation for this case.

Step-by-step explanation:

Previous concepts

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Solution to the problem

Let X the random variable that represent the hardness of a population, and for this case we know the distribution for X is given by:

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And the best way to solve this problem is using the normal standard distribution and the z score given by:

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Step-by-step explanation:

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