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Sedbober [7]
3 years ago
12

2y+18=12-6(y+7) I need help please

Mathematics
1 answer:
4vir4ik [10]3 years ago
7 0

Answer: Y= -6

Step-by-step explanation:

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Simplify 25^ - 1/2 <br><br>Please explain! I know the answer is 1/5 but why?
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(25)^{-\frac{1}{2} }

When the exponent is negative, you have to make the number a fraction(1 over the number).

For example:

25^{-2} = \frac{1}{25^{2} }

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This gets rid of the negative, but it leaves the exponent

(25)^{-\frac{1}{2}}  = \frac{1}{25^{1/2}}

When an exponent is a fraction, it is the square root.

For example:

x^{\frac{1}{3}} =  \sqrt[3]{x}

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