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iris [78.8K]
3 years ago
11

Simplify.

Mathematics
1 answer:
Sidana [21]3 years ago
5 0
<h3>Answer: 3\sqrt{7}</h3>

3*sqrt(7)

3 times the square root of 7

====================================================

Explanation:

I'm assuming the V stands for square root. You can write sqrt(63).

\sqrt{63} = \sqrt{9*7}\\\\\sqrt{63} = \sqrt{9}*\sqrt{7}\\\\\sqrt{63} = 3\sqrt{7}

The idea is to factor 63 in such a way that one factor is the largest perfect square possible, that way we can pull the root apart to simplify as shown above. The rule I used for the second step is \sqrt{x*y} = \sqrt{x}*\sqrt{y}

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7 0
3 years ago
9
katrin2010 [14]

Answer:

230 - 151 + 180 + (43 - 12) = 290

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Use PEMDAS.

Evaluate the expression in the parentheses:

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15

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Applying,

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Therefore,

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From the diagram,

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