2 years ago

Plz help and dont put links to bad sites

Mathematics

2 answers:

MrRa [10]2 years ago

4 0

Answer:

1 to the left.

Step-by-step explanation:

Please give me brainlist

Oksanka [162]2 years ago

4 0

Answer

Step-by-step explanation:

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What are the solutions to the following system? StartLayout Enlarged left-brace 1st row negative 2 x squared + y = negative 5 2n

Yakvenalex [24]

Answer:

$(\sqrt{2},-1),(-\sqrt{2},-1)$

(StartRoot 2 EndRoot, negative 1) and (negative StartRoot 2 EndRoot, negative 1)

Step-by-step explanation:

we have

$-2x^{2} +y=-5$ ----> equation A

$y=-3x^{2} +5$ -----> equation B

solve by substitution

substitute equation B in equation A

$-2x^{2} +(-3x^{2} +5)=-5$

solve for x

$-5x^{2} +5=-5$

$-5x^{2}=-10$

$x^{2}=2$

$x=\pm\sqrt{2}$

Find the value of y

$y=-3x^{2} +5$

For $x=\sqrt{2}$ ----> $y=-3(\sqrt{2})^{2} +5=-1$

For $x=-\sqrt{2}$ ----> $y=-3(-\sqrt{2})^{2} +5=-1$

therefore

The solutions are

$(\sqrt{2},-1),(-\sqrt{2},-1)$

(StartRoot 2 EndRoot, negative 1) and (negative StartRoot 2 EndRoot, negative 1)

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3 years ago

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almond37 [142]

Answer:

A. 12

Step-by-step explanation:

-2*-1=2*6=12

plz mark brainliest

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3 years ago

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Valentin [98]

Answer:

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Step-by-step explanation:

because it is two

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harkovskaia [24]

Answer:

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Step-by-step explanation:

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(1,0) and (-4,0)

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Where it crosses the x axis are -3 and -2

(-3,0) and (-2,0)

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