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ella [17]
3 years ago
10

Write an expression that is equivalent to 4n – 12 + 8y + (-3n).

Mathematics
1 answer:
Dimas [21]3 years ago
7 0
It would be 1n - 12 + 8y.
4n - 3n = 1n
12 + 8y don’t mix so we can leave it.
Therefore: 1n - 12 + 8y
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3 years ago
En un triángulo, dos de sus ángulos internos miden 40º y 55º. Hallar la medida de su tercer ángulo interno.
TiliK225 [7]

Answer:

La medida del tercer ángulo interno es 85°.

Step-by-step explanation:

Los triángulos son figuras geométricas planas que poseen tres lados en contacto entre sí en puntos comunes denominados vértices. A su vez, los triángulos poseen tres ángulos interiores. Estos tres ángulos interiores del triángulo suman 180°.

En este caso, en un triángulo, dos de sus ángulos internos miden 40º y 55º. Siendo θ el tercer ángulo interior, entonces:

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Resolviendo:

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<u><em>La medida del tercer ángulo interno es 85°.</em></u>

3 0
2 years ago
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