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The radius, R, of a sphere is 4.9 mm. Calculate the sphere's volume, V.
Use the value 3.14 for л, and round your answer to the nearest tenth. (Do not round any intermediate computations.)
Check
1R4
V =
mm
3
X
6



Answer :

Sure, let's calculate the volume of a sphere given the radius and the value for π (pi). Here is a step-by-step solution for the problem:

### Step-by-Step Solution:

1. Understand the Formula:
The formula for the volume [tex]\( V \)[/tex] of a sphere is given by:
[tex]\[ V = \frac{4}{3} \pi r^3 \][/tex]
where [tex]\( r \)[/tex] is the radius of the sphere.

2. Substitute the Given Values:
We are given:
[tex]\[ r = 4.9 \, \text{mm} \][/tex]
and
[tex]\[ \pi = 3.14 \][/tex]

3. Calculate the Radius Cubed:
First, compute [tex]\( r^3 \)[/tex] (radius cubed):
[tex]\[ r^3 = (4.9)^3 = 4.9 \times 4.9 \times 4.9 \][/tex]

Let's compute step-by-step:
[tex]\[ 4.9 \times 4.9 = 24.01 \][/tex]
[tex]\[ 24.01 \times 4.9 = 117.649 \][/tex]
Thus,
[tex]\[ r^3 = 117.649 \][/tex]

4. Substitute into the Volume Formula:
[tex]\[ V = \frac{4}{3} \pi r^3 \][/tex]
[tex]\[ V = \frac{4}{3} \times 3.14 \times 117.649 \][/tex]

5. Perform the Multiplications:
First, compute the multiplication of the constants:
[tex]\[ \frac{4}{3} \times 3.14 = 4.1866667 \approx 4.19 \][/tex]

Then multiply by [tex]\( r^3 \)[/tex]:
[tex]\[ V = 4.19 \times 117.649 = 492.18731 \][/tex]

6. Round to the Nearest Tenth:
The volume (V) when rounded to the nearest tenth is:
[tex]\[ V \approx 492.2 \, \text{mm}^3 \][/tex]

### Final Answer:
The volume of the sphere is approximately [tex]\( 492.2 \, \text{mm}^3 \)[/tex].