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ExtremeBDS [4]
2 years ago
5

Screen Shot- Please help- I give Brainliest for correct answer​

Mathematics
1 answer:
tiny-mole [99]2 years ago
3 0

Answer:

3

1

4

-2

Step-by-step explanation:

imma math mannnnn

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Determine the sum of the arithmetic series: 5+18 +31 +44 + ... 161.
Finger [1]

Answer:

1079

Step-by-step explanation:

Hello,

18-5 = 13

31-18=13

44-31=13

161=5+13*12

So we need to compute

\displaystyle \sum_{k=0}^{k=12} \ {(5+13k)}\\\\=\sum_{k=0}^{k=12} \ {(5)} + 13\sum_{k=1}^{k=12} \ {(k)}\\\\=13*5+13*\dfrac{12*13}{2}\\\\=65+13*13*6\\\\=65+1014\\\\=1079

Thanks

3 0
3 years ago
The sum of 10 and a product of 7 and a number
NeX [460]
The answer to your question, would be 7x + 10.

Hopefully this helps!
8 0
3 years ago
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frosja888 [35]

Answer:

The answer is 234

Step-by-step explanation:

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2 years ago
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kondor19780726 [428]
I dont really know best of luck tho

6 0
3 years ago
Peter has 100$. The price of a watch is 60$. If Peter gets 25% discount,can he buy 2 watches?
yKpoI14uk [10]

yes.

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45 plus 45 is less than 100.

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2 years ago
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