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Which expression represents the sum of the first 30 terms of the sequence? –20, –16, –12, –8, –4, . . .

Which expression represents the sum of the first 30 terms of the sequence? –20, –16, –12, –8, –4, . . .
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2 votes
Which expression represents the sum of the first 30 terms of the sequence? –20, –16, –12, –8, –4, . . .

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User Jamin Grey
by
7.6k points

1 Answer

4 votes

Answer:

1. a30=96

2. D or 30(-20+96)/2

3. S30=1140

Explanation:

answered
User Marcos Guimaraes
by
8.2k points
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