Schneider Pollard
02/14/2023 · Senior High School
\( 3,6,12,24, \ldots,\left(8^{\text {th }}\right. \) term \( ) \)
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The sequence given is \( 3, 6, 12, 24, \ldots \).
To find the pattern, let's look at the ratios of consecutive terms:
- \( \frac{6}{3} = 2 \)
- \( \frac{12}{6} = 2 \)
- \( \frac{24}{12} = 2 \)
It appears that each term is multiplied by 2 to get the next term.
We can express the \( n \)-th term of the sequence as follows:
- The first term \( a_1 = 3 \)
- The second term \( a_2 = 3 \times 2 = 6 \)
- The third term \( a_3 = 3 \times 2^2 = 12 \)
- The fourth term \( a_4 = 3 \times 2^3 = 24 \)
In general, the \( n \)-th term can be expressed as:
\[
a_n = 3 \times 2^{n-1}
\]
Now, to find the 8th term \( a_8 \):
\[
a_8 = 3 \times 2^{8-1} = 3 \times 2^7 = 3 \times 128 = 384
\]
Thus, the 8th term of the sequence is \( \boxed{384} \).
Quick Answer
The 8th term of the sequence is 384.
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