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Mama L [17]
3 years ago
6

Please help me on this

Mathematics
1 answer:
Readme [11.4K]3 years ago
3 0

For this case we have to define root properties:

\sqrt [n] {a ^ n} = a ^ {\frac {n} {n}} = a

In addition, we know that:

a ^ {- 1} = \frac {1} {a ^ 1} = \frac {1} {a}

On the other hand:

4 ^ 2 = 16

Thus, we can rewrite the given expression as:

\sqrt {4 ^ 2 * a ^ 8 * \frac {1} {b ^ 2}} =\\4 ^ {\frac {2} {2}} * a ^ {\frac {8} {2}} * \frac {1} {b ^ {\frac {2} {2}}} =\\4 * a ^ 4 * \frac {1} {b}

ANswer:

Option B

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Step-by-step explanation:

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Combine like terms.

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Divide by the coefficient of the variable to get it alone.

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3 years ago
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Answer:

= { \tt{ \frac{2}{5}  \div  \frac{3}{7} }} \\  \\  = { \tt{ \frac{2}{5} \times  \frac{7}{3}  }} \\  \\  = { \underline{ \tt{ \:  \:  \frac{14}{15}  \:  \: }}}

<u>Answer</u><u>:</u><u> </u><u>B</u>

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Answer:

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Step-by-step explanation:

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