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aliya0001 [1]
2 years ago
5

Help (add why you got this answer please)

Mathematics
2 answers:
DENIUS [597]2 years ago
8 0

Answer:

Yes.

Step-by-step explanation:

First of all, both of the dots are in the right spot. Second of all, 10 is bigger than 11. Even though there are decimals after, it still doesn't matter because the ones place is bigger.

hope this helped! :)

scoray [572]2 years ago
5 0
She is incorrect

On one part of the number line she wrote days and on another part she wrote hours. You can only have one label not two different ones.
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Solve this equation for x: 2x^2 + 12x - 7 = 0
zhannawk [14.2K]

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x=0.5355 or x=-6.5355

First step is to: Isolate the constant term by adding 7 to both sides

Step-by-step explanation:

We want to solve this equation: 2x^2 + 12x - 7 = 0

On observation, the trinomial is not factorizable so we use the Completing the square method.

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2x^2 + 12x - 7+7 = 0+7\\2x^2 + 12x=7

Step 2: Divide the equation all through by the coefficient of x^2 which is 2.

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Step 3: Divide the coefficient of x by 2, square it and add it to both sides.

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Therefore, we have:

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x+3=\pm\sqrt{12.5}\\x=-3\pm \sqrt{12.5}\\x=-3+ \sqrt{12.5}, $ or $x= -3- \sqrt{12.5}\\$x=0.5355 or x=-6.5355

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