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Nesterboy [21]
2 years ago
7

how many liters of a 30% antifreeze solution need to be added to 10 L of a 57% antifreeze solution to get 50% antifreeze solutio

n. round to two decimal places.
Mathematics
1 answer:
QveST [7]2 years ago
5 0
50% decimal places hope it helps
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Musya8 [376]

Answer:

3x³ + x² - 2

Step-by-step explanation:

a) 3(x squared plus 3x cubed - 2)​

x squared = x²

3x cubed = 3x³

3(x squared plus 3x cubed - 2)​

= 3(x² + 3x³ - 2)

= 3x² + 9x³ - 6

Rearrange according to power

= 9x³ + 3x² - 6

When the expression is divided by 3, it is equivalent to

3x³ + x² - 2

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3 years ago
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I am attaching a document showing the steps.

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3 years ago
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emmasim [6.3K]
If you have to show your work...

8.2 x 9.5 

    8.2
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+ 7380
-----------
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3 years ago
6(x² + 2x + 7)pls ans​
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