3 years ago

Helpp me pleasse im going to cryy please respond asap

Mathematics

1 answer:

vodka [1.7K]3 years ago

5 0

Answer:

Step-by-step explanation:

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<h3>Answer: Choice C</h3>

Work Shown:

$\frac{12^{10}}{12}\\\\\\\frac{12^{10}}{12^1}\\\\\\12^{10-1}\\\\\\12^{9}\\\\\\\frac{1}{12^{-9}}\\\\\\\left(\frac{1}{12}\right)^{-9}\\\\\\$

In the third step, I used the rule that $\frac{a^b}{a^c} = a^{b-c}$ . You subtract the exponents when dividing exponents of the same base.

After that, I used the rule $a^{-b} = \frac{1}{a^b}$ which is the same as saying $a^{b} = \frac{1}{a^{-b}}$ to end up with choice C as the answer.

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Answer:

$\Large \boxed{x=-7}$

Step-by-step explanation:

$6/x+8/x+5=3$

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Adding fractions since denominators are equal.

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