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jasenka [17]
4 years ago
13

Simplify square root of negative 48.

Mathematics
1 answer:
kvv77 [185]4 years ago
3 0
We want to simplify √(-48).

Note that
i² = -1 by definition.
Therefore
\sqrt{-48} =  \sqrt{i^{2}.16.3} = \sqrt{i^{2}}  \sqrt{16}  \sqrt{3} =4i \sqrt{3}

Answer: c.  4i \sqrt{3}

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3 years ago
Find the value of B - A if the graph of Ax + By = 3 passes through the point (-7,2), and is parallel to the graph of x + 3y = -5
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Answer:

The found values are:

A = 1/3

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Step-by-step explanation:

We know that general equation is given by:

y = mx + c

where m is the slope and c is a constant.

x + 3y = -5

y = -(1/3)x - 1/3(5)

Slop of the equation is -(1/3). As parallel line have same slope substitute it in the first equation:

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By = (1/3)x - 3

Hence, A = 1/3

Substitute point (-7,2) into the equation:

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B(2) = -7/3 - 3

B(2) = -16/3

B = -16/6

B = -8/3

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3 years ago
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Answer:

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