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dlinn [17]
3 years ago
13

ASAP

Mathematics
1 answer:
sertanlavr [38]3 years ago
8 0

9514 1404 393

Answer:

  4.31

Step-by-step explanation:

The distance from point (x, y) to line ax +by +c = 0 is given by the formula ...

  d = |ax +by +c|/√(a² +b²)

Putting the equation of the line into the required form, we have ...

  5x +y +3 = 0

So, the distance from point (4, -1) to the line is ...

  d = |5(4) +(-1) +3|/√(5² +1²) = 22/√26

  d ≈ 4.31

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Answer:

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Step-by-step explanation:

If (x_1,y_1),\,(x_2,y_2),\,(x_3,y_3) are coordinates of a triangle then area of a triangle is equal to \frac{1}{2}|x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2)|

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