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2 years ago

Ursula drew a polygon in which all the angles were obtuse. What kind of polygon could she have drawn?

1 answer:

3 0

Each angles of a polygon with 5 sides and more, that is pentagon, hexagon and so on have angles which are all obtuse.

<h3>What is an angle?</h3>

An angle is formed from the intersection of two or more lines. Types of angles are acute, obtuse and right angled.

An obtuse angle is an angle which is greater than 90 degrees.

Each angles of a polygon with 5 sides and more, that is pentagon, hexagon and so on have angles which are all obtuse.

Find out more on angle at: brainly.com/question/25770607

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3 years ago

A large box contains 10,000 ball bearings. A random sample of 120 is chosen. The sample mean diameter is 10 mm, and the standard

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Option a) A 95% confidence interval for the mean diameter of the 120 bearings in the sample is $10 \pm 1.96\displaystyle\frac{0.24}{\sqrt{120}}$ .

Step-by-step explanation:

We are given the following information in the question:

Sample size, n = 120

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Standard Deviation = 0.24 mm

Formula:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$10 \pm 1.96\displaystyle\frac{0.24}{\sqrt{120}}$

Hence, the correct interpretation for the confidence interval is given by option a).

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We have to consider the factor of sampling of 120 ball bearings from a population of 10,000 ball bearings.

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4 years ago

What is the image of the point (3,4) after a rotation of 90 degree counterclockwise about the origin

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