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Rom4ik [11]
3 years ago
15

Matthew is making a sequence in which -3 is added to each successive term. The 6th term in his sequence is -1. What is the 1st t

erm in his sequence?
Mathematics
1 answer:
Hatshy [7]3 years ago
3 0

Answer:

The first term is 14.

Step-by-step explanation:

The general formula for this kind of sequence (arithmetic) is a(n) = a(1) + (n-1)c, where c is the common difference.  Here, we have a(6) = -1 = a(1) + (6-1)(-3), or -1 +15 = a(1).  The first term is 14.



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Given that Z is the centroid of a triangle RST. This means that Z is the point of intersection of the three medians of the triangle.

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