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klemol [59]
3 years ago
6

Which expression is equivalent to (3y+3) +(y^2 -1) +2y+(y^2+2)

Mathematics
1 answer:
Marta_Voda [28]3 years ago
8 0
The way I looked at this was the amount of y² s in the expression. There is one fro the second bracket and one from the third so the equivalent expression must have 2y². Therefore the answer must be C
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How to work this out ?
Free_Kalibri [48]

Answer:

The solution is (-3, -2).

Step-by-step explanation:

Please note that if you simply add these 2 equations together, 9x - 9x = 0, and you are then left with -5y = 10.  Thus, y = -2.  Subbing -2 for y in the first equation, we get 9x - 8(-2) = -11, or 9x + 16 = -11.

Subtracting 16 from both sides, we get 9x = -27, so that x = -3.

The solution is (-3, -2).


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3 years ago
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Answer:

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Step-by-step explanation:

7 0
2 years ago
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Fudgin [204]

Answer:

2,6,18,54

How I got this answer:

Each term after the first is found by multiplying by a fixed, non-zero number called a common ratio.

step by step:

2×3=6

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The common ratio is 3.

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Step-by-step explanation:

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Step-by-step explanation:

Use formula for cube volume:

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Read 2 more answers
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