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slega [8]
2 years ago
8

-2x-9y=-25, -2x-9y=-23 in elimination method

Mathematics
1 answer:
mars1129 [50]2 years ago
3 0

Answer:

Step-by-step explanation:

    -2x-9y=-25

+   -2x-9y=-23

----------------------

    0 + 0 = -48

          0 = -48

This statement is false, therefore this system has no solution.

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-6n-20=-2n+4 (1-3n)<br> how do you solve it?
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Simplify both sides of the equation.

−6n−20=−2n+4(1−3n)

−6n+−20=−2n+(4)(1)+(4)(−3n)(Distribute)

−6n+−20=−2n+4+−12n

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−6n−20=−14n+4

−6n−20=−14n+4

Add 14n to both sides.

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8n/8 = 24/8

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7 0
3 years ago
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Dafna11 [192]

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3 years ago
Express the polar coordinates (-1, 180) as Cartesian coordinates.
Mashcka [7]
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The second number is 180, so we make an angle of 180 degrees and move in that direction.

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Answer:

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