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OpenStudy (anonymous):
m, 2m, 4m, . . . The first term in the sequence above is m, and each term thereafter is equal to twice the previous term. If m is an integer, which of the following could NOT be the sum of the first four terms of this sequence?
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OpenStudy (nincompoop):
WHERE IS THE FOLLOWING?
OpenStudy (nincompoop):
WHERE ARE THE CHOICES
OpenStudy (anonymous):
-25 -15 45 75 120
OpenStudy (campbell_st):
well if you sum them m +2m + 4m + 8m = 15m which of you're choices isn't a multiply of 15... thats the answer.
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