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Ahat [919]
3 years ago
5

5. -5k - 16=39 7.-14 = -11+ n - 5

Mathematics
1 answer:
qaws [65]3 years ago
3 0

Answer:

n= -15

k = -11

Step-by-step explanation:

-14 = -11 + n/5

-14 + 11 = n/5

-3 = n/5

n = -15

-5k-16 = 39

-5k = 39 + 16

-5k = 55

k = -11

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Step-by-step explanation:

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6 0
3 years ago
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Answer:

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Step-by-step explanation:

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For AB

AB=\sqrt{(5-8)^2+(-18-13)^2} =\sqrt{(-3^2)+(-31^2)} =\sqrt{970} =31.14

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CD=\sqrt{(-2--6)^2+(-5--6)^2} =\sqrt{4^2+1^2} =\sqrt{16+1} =\sqrt{17} =4.12

For DA

DA=\sqrt{(8--2)^2+(13--5)^2} =\sqrt{10^2+18^2} =\sqrt{424} =20.6

Finding the perimeter will be;

31.14+16.28+4.12+20.6=72.14 units

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