Find the mean for the sequence of numbers.
-6, 9, 12, . . . , 129
A) 33.75
B) 67.5
C) 12
D) 39

Name: Find the mean for the sequence of numbers. -6, 9, 12, . . . , 129 A) 33.75 B) 67.5 C) 12 D) 39
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Question

Quizplus · Accepted Answer

The sequence is an arithmetic sequence with a common difference of 3, starting from 6 and ending at 129. To find the mean of the sequence, we can use the formula for the mean of an arithmetic sequence: mean = (first term + last term) / 2. Thus, mean = (6 + 129) / 2 = 135 / 2 = 67.5.

Find the Mean for the Sequence of Numbers