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2 years ago

1. Which of the following is a geometric sequence?

Mathematics

2 answers:

irina [24]2 years ago

8 0

Answer:

5, -25, etc

Step-by-step explanation:

It involves multiplying to get each answer, so it is geometric

Ira Lisetskai [31]2 years ago

3 0

Answer:

5, -25, 125, -625,...

Step-by-step explanation:

In order to test if something is geometric, just divide each element by the previous element. It is geometric if the number is always the same.

-25/5=-5

125/-25=-5

-625/125=-5

The other options do not fall into this pattern.

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Neporo4naja [7]

$\textit{Actor A charges 250 plus 50 per day}
\\ \quad \\

\begin{array}{llll}
days&charge
\\---&---\\
1&50\cdot 1\\
2&50\cdot 2\\
3&50\cdot 3\\
4&50\cdot 4\\
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\\ \quad \\
\begin{array}{llll}
days&charge
\\---&---\\
1&60\cdot 1\\
2&60\cdot 2\\
3&60\cdot 3\\
4&60\cdot 4\\
d&60\cdot x\implies 60d
\end{array}\quad meaning\implies B=200+60d
\\ \quad \\
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\\ \quad \\

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Step-by-step explanation:

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