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yuni31
21.07.2019 •
Mathematics
Asphere is dilated by a scale factor of 5/2 to create a new sphere. how does the volume of the new sphere compare with the volume of the original sphere? a) the volume of the new sphere is 2.5 times the volume of the original sphere. b) the volume of the new sphere is 7.5 times the volume of the original sphere. c) the volume of the new sphere is 2.5^2 times the volume of the original sphere. d) the volume of the new sphere is 2.5^3 times the volume of the original sphere.
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Ответ:
Ответ:
Option D is correct
Step-by-step explanation:
we have to compare the volume of two sphere.
which implies radius of sphere becomes 2.5 times
As the radius of new sphere=2.5r
∴![\text{Volume of new sphere=}\frac{4}{3}\pi (2.5r)^3=2.5^3(\frac{4}{3}\pi r^3)](/tpl/images/0114/8742/58488.png)
Hence, option D is correct.
Ответ: