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3 years ago

7

HELP ASAP THIS IS DUE IN AN HOUR ILL MARK U BRIANLY

1 answer:

AlexFokin [52]3 years ago

4 0

Answer:

5.8 plus 5.1 plus 2

final answer is 11.9

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NemiM [27]

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Infinitely Many

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3 years ago

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Determine the sum of the first 9 terms in the geometric series where r= -0.25 and a1= 256.

Damm [24]

$\bf \qquad \qquad \textit{sum of a finite geometric sequence} \\\\ S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ r=\textit{common ratio}\\ ----------\\ r=-0.25\\ a_1=256\\ n=9 \end{cases}$

$\bf S_9=256\left(\cfrac{1-(-0.25)^9}{1-(-0.25)} \right)\implies S_9=256\left( \cfrac{1+0.25^9}{1+0.25} \right) \\\\\\ S_9=256\left( \cfrac{52429}{65536}\right)\implies S_9=\cfrac{52429}{256}\implies S_9=204.80078125$

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3 years ago

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rosijanka [135]

Answer:it’s 19 inches and 60 inches.

Step-by-step explanation:

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3 years ago

Need help graphing!!!!!!!!!!!!!!!!!!!!!!!!

Fiesta28 [93]

Step-by-step explanation:

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2 years ago

You have budgeted $4,800 for a company to complete guest satisfaction surveys for you. They charge $1,800 + $6 per respondent. H

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Step-by-step explanation:

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3 years ago

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