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What is the sum of the geometric sequence -4, 24, -144 if there are 7 terms
4 months ago
Q:
what is the sum of the geometric sequence -4, 24, -144 if there are 7 terms
Accepted Solution
A:
r= -6
-4(1--6^7)/1--6=
-4(279937)/7=
-1119748/7=
-159964
Your answer is A