Two parallel lines are crossed by a transversal. What is the value of h? h = 60 h = 80 h = 100 h = 120

Mathematics

2 answers:

lisabon 2012 [21]3 years ago

8 0

I added the diagram of the question.

Answer:
h = 60°

Explanation:
We are given that lines k and l are parallel lines.
This means that angles 120° and h are supplementary angles.
This means that their measures add up to 180°

Therefore:
180° = 120° + h
h = 180° - 120°
h = 60°

Hope this helps :)

12345 [234]3 years ago

8 0

Answer:

i agree just took the test

Step-by-step explanation:

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What value of z* should be used to construct a 97 confidence interval of a population mean?

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The value of z* should be used to construct a 97 confidence interval of a population mean is 2.17.

<h3>What is confidence interval?</h3>

A degree of uncertainty and certainty in a sample process is measured by confidence intervals. They can choose from a variety of probability limitations, the most frequent becoming a 95% or 99% confidence level.

Some characteristics of confidence interval are-

Statistical tools, such as the t-test, are used to compute confidence intervals.
Confidence intervals are used by statisticians to quantify uncertainty in such a sample variable.
A researcher, for example, may randomly select multiple samples drawn from the same population and compute a confidence interval for every sample to determine how well it might represent the real value of a population variable.
The generated datasets are all unique; some intervals contain the genuine population parameter while others do not.

Now, according to the question;

The confidence level is given 97%.

Thus, the crucial value of z for a 97% confidence interval is 2.17, as determined by a z score table, which is as follows:

$P(-2.17 < Z < 2.17)=0.97$