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Mathematics 3 Online
OpenStudy (mary.raee):

what is the 9th term of the geometric sequence 4, -20, 100...? A) -312,500 B) -12,500 C) 62,500 D) 1,562,500

OpenStudy (mathmale):

Find the common multiple. 4 times what equals -20?

OpenStudy (mary.raee):

5

OpenStudy (yowarning):

who reported me

OpenStudy (mathmale):

Actually, the common factor is -5. 4 times -5 is -20. -20 times -5 is +100. What is the formula for a geometric sequence?

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