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const2013 [10]
3 years ago
8

ITS THE LAST QUESTION HELP MEE!!!

Mathematics
1 answer:
zavuch27 [327]3 years ago
4 0

Answer:

Easy, here:

Step-by-step explanation:

1- Divide the bottom between 2

2- Use the Pitagoras theorem.

Answer if you crown me.

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10x^2-3x-27<br> Factor the trinomial
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Answer:

(2x+3)(5x-9)

Step-by-step explanation:

10x^2-3x-27

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(5x)(2x+3)-9(2x+3)

(2x+3)(5x-9)

Hope this helps!

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A scientist needs 4.8 liters of a 12% alcohol solution. She has available a 22% and a 10% solution. How many liters of the 22% a
yanalaym [24]

Answer:

  • 4.0 L of 10%
  • 0.8 L of 22%

Step-by-step explanation:

For mixture problems, it is convenient to define a variable to represent the amount of the greatest contributor. Let x represent the amount of 22% solution in the mix. Then 4.8-x is the amount of 10% solution.

The amount of alcohol in the mix is ...

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  x = (0.02/0.12)(4.8) = 0.8 . . . . . divide by the x-coefficient

The scientist needs 0.8 L of 22% solution and 4.0 L of 10% solution.

5 0
3 years ago
1. If mPCV = 42, then mZVCN =
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Answer:

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Step-by-step explanation:

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