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skad [1K]
2 years ago
11

Find the sum of the first 12 terms of geometric sequence 3,-9,27-81,243

Mathematics
1 answer:
Over [174]2 years ago
5 0

Answer:

3, -9, 27,-81,243,-729,2187,-6561,19683,-59049,177147,-531441

the sum is −398,580

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The product of 5 and g
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5g

Step-by-step explanation:

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I have to find f(3)
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Step-by-step explanation:

plug 3 into x

2(3)^2+(3)

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21

f(3)=21

4 0
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Compare the two groups of data. Which statement is true?
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pasha is thinking of a number such that when twice the number is added to three times one more than the number she gets the same
Lelechka [254]
<span>This is the equation made from the problem where x=mystery number
</span><span>2x+3(x+1)=4(x-1)</span><span>

</span><span>Now let's solve for x!
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</span><span>We start by distributing 3 into (X+1)
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</span><span>3(x)=3x  and 3(1)=3
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</span><span>Now our equation is 2x+3x+3=4(x-1)
</span><span>
</span><span>Let's combine both x values on the left side of the equation: 2x + 3x=5x
</span><span>
</span><span>We now have 5x+3=4(x-1)
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</span><span>Let's distribute 4 into (x-1)
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</span><span>4(x)=4x  and 4(-1)=-4
</span><span>
</span><span>Now our equation is 5x+3=4x-4
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</span><span>subtract 3 form both sides
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</span><span>subtract 4x from both sides
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</span>
5 0
3 years ago
Read 2 more answers
A playstation 5 is $900 and costs $50 per game. A xbox is $400 and costs $60 per game. How many games will it take for both cons
belka [17]

Answer:

It would take a PlayStation 5 and 2 games to equal an Xbox and 10 games.

Step-by-step explanation:

I made a list that increase in the increments of the game price.

Something like this:

900—400~consoles alone

950—460~1 game

1000–520~2 games

1050—580~3 games

1100—640~4 games

1150—700~5 games

1200—760~6 games

1250—820~7 games

1300—880~8 games

1350—940~9 games

1400—1000~10 games

Left side is PlayStation 5 and right side is Xbox. The first row is the price of the consoles alone and then each row after that is the price of the console with an additional game. As you can see, the third row down on the left, the PlayStation 5 with 2 games is $1,000. If you look at the eleventh row on the right, you can see that Xbox with 10 games is also $1,000

3 0
3 years ago
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