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GalinKa [24]
2 years ago
14

Pls answer the question

Mathematics
1 answer:
Lunna [17]2 years ago
4 0

Answer:

b

Step-by-step explanation:

each always has a x

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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
DerKrebs [107]

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,

3 0
2 years ago
Please help ...........
viva [34]
I believe the answer is d
7 0
3 years ago
25
alexira [117]

Answer:

333/3 = 111 yards Joey walked

3 0
3 years ago
The interest on $2,000 for 2 years is $320. What is the simple interest rate?
umka2103 [35]
R = 8%/year

Equation:
r = (1/t)(A/P - 1)
Calculation:
Solving our equation:
r = (1/2)((2320/2000) - 1) = 0.08
r = 0.08

Converting r decimal to R a percentage
R = 0.08 * 100 = 8%/year

The interest rate required to get a total amount, principal plus interest, of $2,320.00 from simple interest on a principal of $2,000.00 over 2 years is 8% per year.
7 0
2 years ago
Solve the following proportion for x
fenix001 [56]
5:8
X:7

Cross multiply :
= 7(5)=8x

35=8x
Now divide both sides by 8
35/8= x
x= 4.375


8 0
2 years ago
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