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Daniel [21]
3 years ago
12

What is the radius and diameter of the following circle?

Mathematics
2 answers:
poizon [28]3 years ago
6 0

Answer:

Radius = 9cm

Diameter = 18cm

Step-by-step explanation:

Remember that the diameter of a circle is the distance between two opposite sides (crossing the middle), and the radius is half of that - the distance from the middle to the outside.

the image shows that the diameter is 18cm, so we know that the radius is 18cm/2, which equals  9cm.

kiruha [24]3 years ago
3 0

Answer:

radius=9cm

diameter=18cm

Step-by-step explanation:

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I don’t know this question and it’s really bugging me
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Write any fraction that is less than 1/8
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Explanation:
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2/5 divided by 1/8. Simplest form
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Answer:

1/20 or in a decimal 0.05

Step-by-step explanation:

Hope This helps :)

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A forestry researcher wants to estimate the average height of trees in a forest near Atlanta, Georgia. She takes a random sample
marusya05 [52]

Answer:

The margin of error for her confdence interval is of 0.3757.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

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99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 17 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.8982

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M = T\frac{s}{\sqrt{n}}

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3 years ago
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