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Verizon [17]
3 years ago
13

PLSSS hurry answer both correctly for brainliest

Mathematics
1 answer:
Travka [436]3 years ago
4 0

Answer:

18.) (-5,3)

x=-5\\y=3

19.) I can see that 5 and 13 can go into the equations below by substitution. Using mental math with the 5 and 13, I'm able to determine that these number will fit in. So it makes sense for these to be the x and y value(s).

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Answer:

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Step-by-step explanation:

The equation is

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we know that

-3^{-5}=-\frac{1}{3^{5}}=-\frac{1}{243}

substitute

-\frac{1}{243}=\frac{1}{x}

so

x=-243

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