Find the area of the regular polygon below. PLEASE HELP WILL MARK BRAINLIEIST!
2 answers:
Answer:
A = 946.37 (approximately)
Step-by-step explanation:
The equation of the area of an octagon is (1 +
) where a = side length. In your question, the side length you were given was 14, so plug 14 into the equation in place of a.
So now the equation looks like 2()(1 +
)
2(196)(1 + )
392(1 + ) now use the distributive property
(392 + 392 ) = 946.37
Hope this helps!
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Answer:
And we can find this probability using the complement rule and we got:
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the weights of a population, and for this case we know the distribution for X is given by:
Where and
We are interested on this probability
And the best way to solve this problem is using the normal standard distribution and the z score given by:
If we apply this formula to our probability we got this:
And we can find this probability using the complement rule and we got: