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kobusy [5.1K]
3 years ago
6

-2x-9y=-25 -4x-9y=-23 I need there to be a step-by-step explanation of how you solved it.

Mathematics
1 answer:
madreJ [45]3 years ago
4 0

solved what I didn't solve anything

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Rational, irrational numbers
liberstina [14]
Page from ready workbook, it’s about rational numbers
5 0
3 years ago
The question is in the picture i attached. the right answer gets brainlist :) <3
sergeinik [125]

Answer:

∠ 4 = 130°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ 4 is an exterior angle of the triangle , so

∠ 4 = ∠ 1 + ∠ 2 ( substitute values )

11x + 9 = 6x + 6 + 4x + 14 , that is

11x + 9 = 10x + 20 ( subtract 10x from both sides )

x + 9 = 20 ( subtract 9 from both sides )

x = 11

Then

∠ 4 = 11x + 9 = 11(11) + 9 = 121 + 9 = 130°

your friend may have only calculated ∠ 1

∠ 1 = 6x + 6 = 6(11) + 6 = 66 + 6 = 72°

7 0
2 years ago
Part À : Find a rational number that is between 9.5 and 9.7 - Explain why is it rational
noname [10]

9514 1404 393

Answer:

  A.  9.6

  B. √92 ≈ 9.59

Step-by-step explanation:

A. 9.6 is a rational number between 9.5 and 9.7. It is rational because it is a terminating decimal.

__

B. √92 is an irrational number between 9.5 and 9.7. It is irrational because it is the square root of an integer that is not a perfect square. Its decimal value is about 9.59.

6 0
3 years ago
Solve the equation. 27x - 6 = 9x - 1
Evgesh-ka [11]
27x-6=9x-1
27x-9x =-1+6
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5 0
3 years ago
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Wewaii [24]

Check the picture below.

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