4 years ago

What is this opposite of -5.6 ?

Mathematics

1 answer:

qaws [65]4 years ago

7 0

The opposite is the positive version.
5.6

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How do you solve x^2 plus 16x plus 63=0?

Alex

$x^2+ 16x + 63=0 \\ \\a=1, \ b=16 , \ c=63 \\ \\ \Delta =b^2-4ac =16^2 -4\cdot1\cdot 63 = 256 -252 = 4 \\ \\x_{1}=\frac{-b-\Delta }{2a}=\frac{-16-\sqrt{4}}{2 }=\frac{-16-2}{2}=-\frac{-18}{2}=-9 \\ \\x_{2}=\frac{-b+\Delta }{2a}=\frac{-16+\sqrt{4}}{2 }=\frac{-16+2}{2}=-\frac{-14}{2}=-7 \\ \\ \\Answer : \ x= -7 \ \ or \ \ x= -9$

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3 years ago

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azamat

Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

x=8

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3 years ago

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Step-by-step explanation:

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3 years ago

I need help!!!! Evaluate 4/7 + 8/3 in fraction form

Reptile [31]

Answer:

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Step-by-step explanation:

Given equation:

4/7 + 8/3

Solve:

4/7 + 8/3
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2 years ago