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Jlenok [28]
3 years ago
9

Polygons EFGH and E'F'G'H' are shown on the following coordinate grid:

Mathematics
1 answer:
vlabodo [156]3 years ago
5 0
This would be modeled by a translation 1 unit down and a 270° clockwise rotation.

Each of these points has the x and y values switched, with the y value one less than that of the preimage and negated.  Taking one off the y-value is a translation 1 down; negating the y and switching it and x is a 270° clockwise rotation.
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If the ratio of radius of two spheres is 4:7, the ratio of their volume is?​
Kazeer [188]

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First use the radii to find the volume

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2) Radius of the second sphere is 7 (also taken from 4:7 ratio)

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The simple way to do this problem is to just cube the numbers:  

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