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noor66
20.07.2019 •
Mathematics
Two similar cones have volumes of 8pi and 64pi find the ratios of the radio
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Ответ:
volume larger cone=64*pi unit³
volume smaller cone=8*pi unit³
we know that
volume larger cone=[scale factor]³*volume smaller cone
[scale factor]³=volume larger cone/volume smaller cone
[scale factor]³=64*pi/(8*pi)> 8
[scale factor]=∛8> [scale factor]=2
Find the ratios of the radio
[radio larger cone/radio smaller cone] is equal to the scale factor
so
[radio larger cone/radio smaller cone]=2
or
[radio smaller cone/radio larger cone]=1/2
Ответ:
r =![\frac{1}{2}](/tpl/images/2523/4637/9cdae.png)
Step-by-step explanation:
The proportional equation is
y = rx ( divide both sides by x )
Substitute any ordered pair from the table
Using (14, 7 ) , then
r =
= ![\frac{1}{2}](/tpl/images/2523/4637/9cdae.png)