LEXIEXO
19.07.2019 •
Mathematics
In the equation sa = 4πr^2h, what happens to r if the height is tripled and the surface area stays the same.
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Ответ:
* edit: had r and h reversed..
1 = (3h)(r)^2
1/3 = h(r)^2
1/3 = (r)^2
√(1/3) = r
h and r are inversely related so tripling h will reduce r by 1/√(3)
Ответ:
2.5 us dollars
Step-by-step explanation: