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Ratling [72]
3 years ago
14

The rational number -41 is equal to

Mathematics
1 answer:
kolezko [41]3 years ago
8 0

Answer:

0

Step-by-step explanation:

-14 is also equal to 0

cause it does not have any value

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lapo4ka [179]

DE/ 120 = 45/360

DE = 120 * 45 /360

DE = 15

Answer

B. 15 cm

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3 years ago
Una persona asegura que su casa tiene forma rectangular y que el perímetro de la misma es de 18 m y que además, su área es de 21
leva [86]

Considerando las fórmulas para el perímetro y el área de un rectángulo, hay que se chega en una <u>eccuación cuadrática sin solución</u>, o sea, las medidas no son posibles y la persona estaba mintiendo.

<h3>¿Cuál es la fórmula para el perímetro y el área de un rectángulo?</h3>

Considerando que las dimensiones son l y w, hay que:

  • El perímetro es: P = 2(l + w).
  • El área es: A = lw.

El <u>perímetro es de 18 m</u>, o sea:

2(l + w) = 18

l + w = 9

l = 9- w.

El <u>área es de 21 m²</u>, o sea:

lw = 21

(9- w)w = 21

-w² + 9 - 21 = 0

w² - 9w + 21 = 0

El discriminante es dado por:

D = 9² - 4 x 1 x 21 = -3.

El discriminante negativo implica que la <u>eccuación cuadrática no tiene solución</u>, o sea, las medidas no son posibles y la persona estaba mintiendo.

Puede-se aprender más a cerca de el perímetro y el área de un rectángulo en brainly.com/question/26475963

#SPJ1

4 0
2 years ago
Solve 2x + 3y = C, for y
natta225 [31]

Answer:

y= \frac{c-2x}{3}

Step-by-step explanation:

2x+3y=C

isolate y

3y=C-2x

y= \frac{c-2x}{3}

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Step-by-step explanation:

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$5 box of cereal; 40% discount. any kind of ceral.
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Answer:

3

Step-by-step explanation:

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3 years ago
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