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olya-2409 [2.1K]
3 years ago
8

La funcion que representa el beneficio obtenido por una empresa si vende x unidades de uno de sus productos es f(x)= -70x^2+2800

x-45000. ¿cuantas unidades tiene que vender para maximizar sus beneficios?
Mathematics
1 answer:
DerKrebs [107]3 years ago
3 0

Answer:

20

Step-by-step explanation:

La función es

f(x)=-70x^2+2800x-45000

Diferenciando con respecto a x obtenemos

f'(x)=-140x+2800

Igualar con cero

0=-140x+2800\\\Rightarrow x=\dfrac{2800}{140}\\\Rightarrow x=20

Doble derivada de la función

f''(x)=-140

Entonces, la función es máxima cuando el número de unidades vendidas,  x=20,

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ladessa [460]
<h3>Solution (a):</h3>

<em>~Let's change 9.9² to 10² since we have to estimate.~</em>

<u>We know that:</u>

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<u>Solving the expression:</u>

  • 9.9² × 1.79
  • => 10² × 1.79
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The estimated value of 9.9² × 1.79 is 179.

<h3>Solution (b):</h3>

<em>~Let's change √97.5 to √100 and 1.96 to 2</em> <em>since we have to estimate.~</em>

<u>We know that:</u>

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<u>Solving the expression:</u>

  • √97.5 ÷ 1.96
  • => √100 ÷ 2
  • => 10 ÷ 2
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The estimated value of √97.5 ÷ 1.96 is 5.

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3 years ago
What is the width of a rectangle with a perimeter of 70 feet is 1 foot
MatroZZZ [7]
The answer is 280 to get a wright answer
8 0
4 years ago
The vertices of a square are located at:
vivado [14]

Answer:

(4,4), (10,4), (10,10), (4,10)

Step-by-step explanation:

(2,2) x2 -> (4,4)

(5,2) x2 -> (10,4)

(5,5) x2 -> (10,10)

(2,5) x2 ->  (4,10)

Hope that helps!

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The person traveled the farthest during section D. They traveled 60 miles.

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