$(\sqrt {12} * - \sqrt {8}) + (\sqrt {12} * - \sqrt {2}) + (6 * - \sqrt {8}) + (6 * - \sqrt {2} ) =\\- \sqrt {96} - \sqrt {24} -6 \sqrt {8} -6 \sqrt {2} =$

We rewrite in equivalent form:

$- \sqrt {4 ^ 2 * 6} - \sqrt {2 ^ 2 * 6} -6 \sqrt {2 ^ 2 * 2} -6 \sqrt {2} =\\-4 \sqrt {6} -2 \sqrt {6} -6 * 2 \sqrt {2} -6 \sqrt {2} =$

$-4 \sqrt {6} -2 \sqrt {6} -12 \sqrt {2} -6 \sqrt {2} =\\-6 \sqrt {6} -18 \sqrt {2}$

Answer:

$-6 \sqrt {6} -18 \sqrt {2}$

8 0

3 years ago

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Brand A has a recognition value worth $47 billion more than brand B. If the total value of these two brands is $101 billion,

gladu [14]

A+B=$101 billion
A=B+$47 billion

2B+$47 billion=$101 billion.
2B=$54 billion
B=$27 billion

A=B+$47 billion
A=$74 billion.

3 0

3 years ago

-3r +9 = -4r +5<br>what's r?

-BARSIC- [3]

Answer:

-4

Step-by-step explanation:

-3r+9=-4r+5

-3r+4r=5-9

r=-4

8 0

3 years ago

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