5, -15, 45, -135 identify the common ratio , then write the sequence as a geometric series
1 answer:
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Answer:
? = 3
Step-by-step explanation:
given a line parallel to a side of the triangle and intersecting the other 2 sides, then it divides those sides proportionally , that is
=
( cross- multiply )
4? = 12 ( divide both sides by 4 )
? = 3