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natalieburnett82
12.10.2019 •
Mathematics
The ratio of the radii of two spheres is 3: 1. the volume of the larger sphere is 729 in3. what is the volume of the smaller sphere?
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Ответ:
The constants don't matter because we're doing it by ratio, what matters is that volume is proportional to r^3. The radius is 3x larger, so the volume will be 3^3 = 27 times larger.
Therefore the volume of the smaller sphere is 729 / 27 = 27 in^3.
Ответ:
A. 25 cm^3.
Step-by-step explanation:
Volume = 1/3 * area of base * perpendicular height,
= 1/3 * 5^2 * 3
= 5^3
= 25.