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julsineya [31]
3 years ago
12

A hexagon has a radius measuring 23 cm. What is the approximate area of the hexagon?

Mathematics
2 answers:
attashe74 [19]3 years ago
7 0
1374.4 square cm is the correct answer
Kryger [21]3 years ago
7 0

Answer:

Option (c) is correct.

Approximate area of the given hexagon is 1374.4 square cm.

Step-by-step explanation:

Given : A hexagon has a radius measuring 23 cm.

We have to find  the approximate area of the hexagon.

Since, The formula for surface area of hexagon is given as,

A=\frac{3\sqrt{3} }{2}a^2

where, a is radius of hexagon

here, a = 23 cm

So, Area is given by

A=\frac{3\sqrt{3} }{2}\cdot(23)^2

Simplify, we have,

A=1374.38

Thus, Approximate area of the given hexagon is 1374.4 square cm.

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Hope that helps!

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A publisher reports that 45% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is
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Step-by-step explanation:

Information given

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\hat p=0.4 estimated proportion of  readers owned a laptop

p_o=0.45 is the value that we want to test

z would represent the statistic

p_v represent the p value

Creating the hypothesis

We need to conduct a hypothesis in order to test if the true proportion of readers owned a laptop is different from 0.45, the system of hypothesis are:  

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The statistic is:

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Replacing we got:

z=\frac{0.40 -0.45}{\sqrt{\frac{0.45(1-0.45)}{370}}}=-1.933  

Calculating the p value  

We have a bilateral test so then the p value would be:

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