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valentinak56 [21]
3 years ago
6

Distance between (-5, -5) And (-9, -2)

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
5 0
d =  \sqrt{(x_2 - x_1)^2+(y_2-y_1)^2}  \\ d =  \sqrt{(-9 - (-5))^2+(-2 - (-5))^2}  \\ d =  \sqrt{(-4)^2+(3)^2}  \\ d =  \sqrt{16 + 9}  \\ d =  \sqrt{25} = 5
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Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=n%20-%205%20%5Cleqslant%205n%20-%201" id="TexFormula1" title="n - 5 \leqslant 5n - 1" alt="n -
ANTONII [103]
Hello there!

n - 5 ≤ 5n - 1

Solve for n

Let's start by subtracting 5n from both sides

n - 5 - 5n ≤ 5n - 5n - 1

n - 5 - 5n ≤ -1

We need to transfer -5 on the other side, we can do that by adding 5 on both sides

n - 5 - 5n + 5 ≤ -1 + 5

n - 5n ≤ -4

-4n ≤ -4

Finally divide both sides by -4

-4n/-4 ≤ -4/-4

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Do you know why I changed the sign?


 A lot of students failed to remember that rules, which is:
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Step-by-step explanation:

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Step-by-step explanation:

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