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Minchanka [31]
3 years ago
8

Write an expression for the calculation 84 divided into sevenths added to 9 divided into thirds.

Mathematics
1 answer:
sertanlavr [38]3 years ago
7 0

(9 \div 3) + (84 \div 7)
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Si el lado de un cuadrado mide 10cm cuanto mide él área del círculo que se encuentra adentro de ese cuadrado
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Answer:

El área del círculo que se encuentra en el cuadrado es de 78.5cm²

Step-by-step explanation:

Para resolver este ejercicio tenemos que pensar que un cuadrado tiene sus 4 lados iguales, por lo que todos sus lados medirán 10cm.

Ahora nos fijamos que necesitamos saber para calcular el área de un circulo

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a = π * r²

como podemos ver no sabemos el valor del radio

como el circulo toca con los 4 lados del cuadrado sabemos que su radio sera la distancia del centro del cuadrado a cualquiera de los lados.

Entonces tenemos que dividir un lado por 2

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Ahora que tenemos todos los datos podemos calcular el valor del área

a = 3.14 * (5cm)²

a = 3.14 * 25cm²

a = 78.5cm²

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The height, H,of a cylinder is 5 units less than 3 times the radius, R, which expression expresses the height of the cylinder in
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H = 3r <span>− </span>5
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