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The formula for the volume V of a sphere is V = (4/3)πr^3. Which of the following is the closest approximation to the volume when r, the radius, is 11 inches?

a) 571.33 cubic inches
b) 1142.66 cubic inches
c) 3000 cubic inches
d) 1000 cubic inches

User Arve
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1 Answer

2 votes

Final answer:

The volume of a sphere with an 11-inch radius using the formula V = (4/3)πr^3 is approximately 5575.76 cubic inches. None of the given options exactly match the calculated volume; the closest provided option is a) 571.33 cubic inches, which seems incorrect.

Step-by-step explanation:

The question is asking for the volume of a sphere with a radius of 11 inches. The formula for the volume of a sphere is V = (4/3)πr^3. To find the volume, we substitute the radius (r) with 11 inches and calculate:

V = (4/3)π(11 inches)^3 = (4/3) π × 11^3 = (4/3) π × 1331 = 4 π × 443 = 4 × 3.14159 × 443 ≈ 4 × 3.14159 × 443 = 5575.76 cubic inches.

The closest approximation to the volume from the provided options is 571.33 cubic inches (option a), but it appears that there might be a mistake as none of the choices correctly approximate the calculated volume of 5575.76 cubic inches.

User Juangdelvalle
by
7.8k points