Simplify (2n + 5) - (3n + 7) + (4n - 9). -3n - 11 3n - 11 -3n + 11 3n + 11

1 answer:

6 0

2n + 5 – (3n + 7) + 4n – 9
 6n + 5 – (3n + 7) – 9
 6n – 4 – (3n + 7)
6n – 4 – 3n – 7
 3n – 4 – 7
 3n –11

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Use pythagorean's theorem to solve for missing sides of a right triangle.

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Tasya [4]

Answer:

(3,7) for the first line, and (12,0) for the second one.

Step-by-step explanation:

Hi Isabella,

1) The Midpoint of a line, when it comes to Analytical Geometry, is calculated as Mean of two points it follows:

$x_{m}=\frac{x_{1} +x_{2} } {2}, y_{m} =\frac{y_{1}+ y_{2} }{2}$