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True [87]
3 years ago
9

What is the volume of a volleyball with a diameter of 8 inches

Mathematics
1 answer:
natita [175]3 years ago
8 0

Hello there!

We are going to follow the volume of a sphere since a volleyball is a sphere. V=4/3πr^3 is the formula for finding the volume of a sphere. The only unknown value is r, or the radius. We find the radius by halving the diameter.

8/2 = 4, so we have a radius of 4 inches.

Place the value of 4 in for r - V = 4/3 x π x (4)^3

Now solve.

V = 4/3 x π x (4)^3

Start by squaring 4.

V = 4/3 x π x 64

Next, multiply 4/3 by 64. (<em>you can do it in any order since there are no parenthesis</em>)

V = π x 85.33

Lastly, multiply 85.33 by pi.

V = 268.08

So, your answer is approximately 268.08, since we used rounding it is not exact. I hope this was helpful and have a great rest of your day! :)

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-----------------------------------
Question:
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6 - (-8) = 6 + 8 = 14

-----------------------------------
Options :
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A) -6 + 8 = 2

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3 years ago
The principal at Riverside High School would like to estimate the mean length of time each day that it takes all the buses to ar
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Answer:

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1) Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

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n represent the sample size  

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