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Tasya [4]
3 years ago
10

Which transformation produces another triangle that has the same area as the one shown?

Mathematics
1 answer:
son4ous [18]3 years ago
8 0

Answer:

A

Step-by-step explanation:

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Find the sum of a finite geometric sequence from n=1 to n=8, using the expression -2(3)^n-1
MissTica
\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
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\sum\limits_{n=1}^{8}~-2(3)^{n-1}~~
\begin{cases}
n=8\\
a_1=-2\\
r=3
\end{cases}\implies S_8=-2\left( \cfrac{1-3^8}{1-3} \right)
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S_8=\underline{-2}\left( \cfrac{1-6561}{\underline{-2}} \right)\implies s_8=1-6561\implies S_8=-6560
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3 years ago
Can anyone please solve this question
DENIUS [597]
The first number is 27 and the second number is 45 so the ratio would be 27;45
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Answer:

Step-by-step explanation:

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