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Allushta [10]
3 years ago
12

The diameter of a volleyball is 8.15 inches. What is the volume of the ball,

Mathematics
2 answers:
Ivan3 years ago
8 0

Answer:

<h2>B.  283.45 cubic inches.</h2>

Step-by-step explanation:

We know that a volleyball has spherical form.

To find the volume of a sphere, we have the following formula

V_{sphere}=\frac{4}{3} \pi r^{3}

Now, we know that the radius is defined as half the diameter

r=\frac{d}{2} \\r=\frac{8.15in}{2}\\ r=4.075in

Then, we replace the radius to find the volume of the ball

V_{sphere}=\frac{4}{3} (3.14) (4.075in)^{3}=283.45 in^{3}

Therefore, the right answer is B.  283.45 cubic inches.

sattari [20]3 years ago
4 0

Answer:

Volume

≈  283.49n

So B. 283.45in

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Find the tenth term in the following geometric sequence. 8, 4, 2, 1, . . .
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The general term a[n] of a geometric sequence is given in terms of the first term a[1] and common ratio r as ...

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You want to place a towel bar that is 10 1⁄4 inches long in the center of a door that is 26 1⁄3 inches wide. How far should you
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The bar should be 8 1/24 from the each edge of the door.

We need to subtract 10 1/4 from 26 1/3 to get the fraction of the space not covered by the towel bar. 
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1st we need to convert the mixed fractions into fractions to perform subtraction.
26 1/3 = ((26*3)+1)/3 = 79/3
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Steps in Subtracting Fractions
Step 1. Make sure the denominator is the same. 3 and 4 are the denominators, they are not the same but they are factor of 12. So,
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Step 2. Subtract the numerators and place them above the common denominator
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Before we can simplify the fraction, we must divide it by two to get the measurement of each edge of the door.

Steps in dividing fractions.
Step 1. Get the reciprocal of the 2nd fraction.
1st fraction : 193 / 12
2nd fraction : 2 /1  ⇒ reciprocal 1/2

Step 2. Multiply the 1st fraction to the reciprocal of the 2nd fraction
193 / 12 * 1/2 = 193 * 1 / 12 * 2 = 193 / 24

Step 3. Simplify the fraction.
193 / 24 = 8 1/24
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