Mathematics: What are the solutions of the following systems? 2x + 3y = -1 1-2x – 3y = 1 0 (-7, 6) O infinitely many solutions no solutions O (7,-6)

What are the solutions of the following systems? 2x

Ответ:

golderhadashaowtatz

14.11.2020

Mathematics

Answer is below

Step-by-step explanation:

Rewrite equations

2x+3y=-1;-2x-3y+1=1

Solve 2x+3y=−1 for x

$2x+3y=-1\\2x+3y+-3y=-1+-3y$

(Add -3y to both sides)

$2x=-3y-1\\\frac{2x}{2}=\frac{-3y-1}{2}$

$x=\frac{-3}{2}y+\frac{-1}{2}$

Substitute

$-2x-3y+1=1\\-2(\frac{-3}{2}y+\frac{-1}{2})-3y+1=1\\2=1\\2+-2=1+-2\\0=-1\\$

No solutions

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Ответ:

Deascry

21.02.2022

Mathematics

306.9

Step-by-step explanation:

The equation for the volume of a right triangular prism is to (this is for the base of the triangle) multiply the base by the height and then by 1/2. This will determine the area. Then take the height of the whole prism and multiply that to the base's area. That will give you the volume. So in your case: 9 times 6.2 times 1/2 equals 27.9. Then multiply 27.9 by 11 to get 306.9. I hope this helps!

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What are the solutions of the following systems? 2x + 3y = -1
1-2x – 3y = 1
0 (-7, 6)
O infinitely many solutions
no solutions
O (7,-6)

Ответ:

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