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evablogger [386]
3 years ago
8

Find the value of X to the nearest tenth. Thank you!!!

Mathematics
1 answer:
Greeley [361]3 years ago
5 0

Answer:

84.5

Step-by-step explanation:

Use trig functions to find x. Trig functions are special relationships which exits between the sides of right triangles. Since you need to find x the hypotenuse and you have the adjacent side to 77 degree angle use cosine.

Cos 77 = 19/x

0.22495 = 19/x

19/0.22495 = x

84.5 = x


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see explanation

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The conditions for use of the normal model to represent the distribution of sample proportion are not met. He should increase the sample size until the conditions are met.

If the test is done anyway, the null hypothesis failed to be rejected.

The conclusion is taht there is not enough evidence to support the claim that the percentage is lower in this district.

Step-by-step explanation:

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The sample proportion is p=0.1.

 

The standard error of the proportion is:

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P-value=P(z

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