3 years ago

Round 2,236.8 to the nearest ten

Mathematics

1 answer:

jenyasd209 [6]3 years ago

8 0

Answer:

2,240

Step-by-step explanation:

In the ones place we have a 6, so you can round it up, and replace the 3 with a 4 in the tens place.

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Consider 8x2 - 48x = -104.

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Answer:

$3+ 2\mathbf{i}$

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Step-by-step explanation:

<u>Quadratic Equation Solving</u>

We have the equation:

$8x^2-48x=-104$

Divide by 8:

$x^2-6x=-13$

Now complete the squares so the left side is a perfect square of a binomial:

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Factoring the perfect square:

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Taking the square root:

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The square root of a negative number is an imaginary number:

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Solving for x:

$x=3\pm 2\mathbf{i}$

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