3 years ago

Calculate S37 for the arithmetic sequence in which a7 = 25 and the common difference is d=-1.7

2 answers:

7 0

Answer:

170.2

Step-by-step explanation:

EleoNora [17]3 years ago

5 0

Answer:

-26

Step-by-step explanation:

25 is a7. if you subtract 1.7 each time then at 37 the number will be -26.

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