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2 years ago

13

What is the location of the point on the number line that is 1/4 of the way from

1 answer:

Aleonysh [2.5K]2 years ago

5 0

answer is 31

Step-by-step explanation:

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3 years ago

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2 years ago

6,057 round it to the nearest thousands

iren [92.7K]

Answer: 6,000.

Step-by-step explanation:

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2 years ago

Read 2 more answers

Evgesh-ka [11]

D because you need to make the denominators have a common multiple.

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2 years ago

Find the sum of a finite geometric sequence from n=1 to n=8, using the expression -2(3)^n-1

MissTica

$\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}
\end{cases}
\\\\\\
\sum\limits_{n=1}^{8}~-2(3)^{n-1}~~
\begin{cases}
n=8\\
a_1=-2\\
r=3
\end{cases}\implies S_8=-2\left( \cfrac{1-3^8}{1-3} \right)
\\\\\\
S_8=\underline{-2}\left( \cfrac{1-6561}{\underline{-2}} \right)\implies s_8=1-6561\implies S_8=-6560$

8 0

3 years ago