Mathematics: Given the following geometric sequence, find the 12th term: {2, -4, 8, }. a. -4096 b. 4096 c. 2048 d -2048

Given the following geometric sequence, find the 12th

Ответ:

palmsalt05

10.01.2022

All geometric sequences can be expressed as:

a(n)=ar^(n-1), a=initial term, r=common ratio, n=term number, in this case:

-4/2=8/-4=-2=r and a=2 so:

a(n)=2(-2^(n-1)) so a(12) is going to be:

a(12)=2(-2^(11))=2(-2048)= -4096

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Ответ:

samantha636

03.02.2020

Mathematics

$\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h\quad 
\begin{cases}
r=radius\\
h=height\\
-----\\
r=12.5\\
h=14
\end{cases}\implies V=\pi \cdot 12.5^2\cdot 14$

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Given the following geometric sequence, find the 12th term: {2, -4, 8, }.

a. -4096

b. 4096

c. 2048

d -2048

Ответ:

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