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UNO [17]
2 years ago
9

1/2 of a right angle is a? answers: A. reflex angle B. obtuse angle C. acute angle D. straight angle

Mathematics
2 answers:
Artemon [7]2 years ago
8 0

Answer:

C. acute angle

Step-by-step explanation:

As you know ,right angle is equal to 90 degrees so half of 90 degrees is 45 degree which is an acute angle (acute angles are the angles which are less than 90 degrees)

Hope this helps and pls mark as brainliest :)

Alex2 years ago
4 0

Answer: acute

Step-by-step explanation:

An angle that is less than 90 degrees

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In preparation for an earnings report, a large retailer wants to estimate p= the proportion of annual sales
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Using the z-distribution, it is found that the 95% confidence interval for the proportion of sales that occured in December is (0.1648, 0.2948).

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

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In which:

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In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

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The 95% confidence interval for the proportion of sales that occured in December is (0.1648, 0.2948).

More can be learned about the z-distribution at brainly.com/question/25890103

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