X х
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16
+
=
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x - 3
x2 – 7x + 12

a mantle plume is an upwelling of abnormally hot rock within the earth's mantle. as the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of volcanic centers known as hotspots and probably also to have caused flood basalts.

step-by-step explanation:

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it's possible to build a triangle with side lengths of 3, 3, and 9.- true ( b.)

daren is correct because