True/False

A facility manager is calculating the total energy savings over a 30-day period. The daily savings follow the arithmetic sequence 8,13,18,23,28,{}8, 13, 18, 23, 28, \dots. True or False: To calculate the total sum of savings using the formula Sn=n2(a1+an)S_n = \frac{n}{2}(a_1 + a_n), the manager must first determine the value of the 30th term (a30a_{30}) using the formula an=a1+(n1)da_n = a_1 + (n - 1)d.

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Updated 2026-05-25

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