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Alina [70]
1 year ago
11

2. Find the 72nd term in the arithmetic sequence 2, -8, -18, -28, ..

Mathematics
1 answer:
icang [17]1 year ago
7 0

Answer:

The 72nd term is -708

Step-by-step explanation:

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Point T is the midpoint of JH. The coordinate of T is (0, 5) and the coordinate of J is (0, 2). The coordinate of H is:
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\bf ~~~~~~~~~~~~\textit{middle point of 2 points }\\\\
\begin{array}{ccccccccc}
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\end{array}\qquad
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\begin{cases}
\cfrac{x+0}{2}=0\\\\
\boxed{x=0}\\
------\\
\cfrac{y+2}{2}=5\\\\
y+2=10\\
\boxed{y=8}
\end{cases}
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