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Kobotan [32]
3 years ago
8

Please help with numbers 6,7,8 will brainlist

Mathematics
1 answer:
Naily [24]3 years ago
3 0

Answer:

6. -3

7. 16

8. -39

Step-by-step explanation:

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Please help asap
KengaRu [80]

Answer:

one

Step-by-step explanation:

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8 0
3 years ago
Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15.
Naya [18.7K]
It's a geometric sequence.

4,-12,36,... \\ \\
a_1=4 \\
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a_n=a_1 \times r^{n-1} \\
a_n=4 \times (-3)^{n-1} \\
a_n=4 \times (-3)^{-1} \times (-3)^n \\
a_n=4 \times (-\frac{1}{3}) \times (-3)^n \\
a_n=-\frac{4}{3}(-3)^n

It's the sum for term 4 through term 15.

 \boxed{ \sum\limits_{n=4}^{15} (\frac{4}{3}(-3)^n)}
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D. Associative Property

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The group is being switched around.

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