2 years ago

The length of a rectangular backyard is represented by 4x + 10, and the width is represented by 2x + 5.

Mathematics

1 answer:

kotegsom [21]2 years ago

4 0

Answer:

(2) 6x^2+40x +50

Step-by-step explanation:

(4x+10)*(2x+5) = 8x^2 +40+50

minus 2x^2

=6x^2 +40 +50

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Answer:

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2 years ago

Un paracaidista que pesa 70 N es lanzado de un avión. halla su masa

77julia77 [94]

Answer:

<em>La masa del paracaidista es 7.14 Kg</em>

Step-by-step explanation:

La masa de un objeto es una medida de la cantidad de material que el objeto posee. Sus unidades más comunes son el Kg, gr, lb, Ton.

El peso de un objeto de masa m es la fuerza con la cual la Tierra atrae al objeto a través de la aceleración de gravedad g. Sus unidades son iguales a las de cualquier fuerza, es decir, Nw, Kgf, Dina. Su fórmula es:

P=m.g

Si tenemos el peso P=70 N, podemos calcular la masa, despejándola de la fórmula:

$\displaystyle m=\frac{P}{g}$

Sustituyendo los valores:

$\displaystyle m=\frac{70}{9.8}=7.14\ Kg$

La masa del paracaidista es 7.14 Kg

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3 years ago