3 years ago

Please help me solve for the area

Mathematics

2 answers:

Paha777 [63]3 years ago

7 0

Answer:

5x4x9=180 then 4 divided by 2 is 2 then 2x180 you get the answer

Step-by-step explanation:

Elena L [17]3 years ago

5 0

Answer:

-9

Step-by-step explanation:

why not

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horsena [70]

Answer:

x=2/5

Step-by-step explanation:

4 0

2 years ago

A Geometric series has a first term of 4 and a common ratio of 6. what formula is equivalent to the partial sum of the first n t

IRISSAK [1]

$\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
a_1=4\\
r=6
\end{cases}
\\\\\\
S_n=4\left( \cfrac{1-6^n}{1-6} \right)\implies S_n=4\left( \cfrac{1-6^n}{-5} \right)$