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Elena-2011 [213]
3 years ago
12

PLEASEEEEEEEE HELPPPPPP!!!!!

Mathematics
1 answer:
GalinKa [24]3 years ago
7 0

Answer:

C:

Step-by-step explanation:

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Solve 2x + 5y = −13 3x − 4y = −8
zlopas [31]
If you would like to solve 2x + 5y = -13 and 3x - 4y = -8, you can do this using the following steps:

2x + 5y = -13       /*4
3x - 4y = -8         /*5
_______________
8x + 20y = -52
15x - 20y = -40
_______________
8x + 15x + 20y - 20y = -52 - 40
23x = -92
x = -92 / 23
x = -4

<span>3x - 4y = -8 
</span>3 * (-4) - 4y = -8
-12 - 4y = -8
12 + 4y = 8
4y = 8 -12
4y = -4
y = -1

The correct result would be x = -4 and y = -1.
6 0
2 years ago
16 is the geometric mean of 8 and what other number?
zepelin [54]
It is also the geometric mean of 4
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What are the next three numbers in this sequence? 32,16,8,4,2,
astra-53 [7]

Answer:

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Step-by-step explanation:

the numbers half every time

8 0
3 years ago
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Find the area of the circle below. Use 3.14 for pi
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Answer:

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Step-by-step explanation:

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I need help finding the circumference of F
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So your circumference would be  <span>34.557519189488 cm</span>. hope that helped
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