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Katarina [22]
3 years ago
11

If the diameter of the circle is above 20mm what is the area

Mathematics
1 answer:
Phoenix [80]3 years ago
7 0

Answer:

The area would be 314.16 mm squared

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¿cuanto pesa cada uno de nuestros 3 personajes?
sergij07 [2.7K]

Resolviendo el sistema de ecuaciones veremos que:

  • niña = 23kg
  • niño = 28kg
  • perro = 18kg.

<h3>¿Como resolver el sistema de ecuaciones?</h3>

Aqui tenemos el sistema de ecuaciones:

Niña + niño = 51kg

Niño + perro = 46 kg

Niña + perro = 41kg

Para resolver esto, lo primero que debemos hacer es aislar una variable en una de las ecuaciones, por ejemplo, podriamos aislar "perro" en la tercera:

perro = 41kg - niña

Ahora reemplazamos eso en la segunda para obtener:

niño + (41kg - niña) = 46kg

niño - niña = 46kg - 41kg = 5kg

niño = niña + 5kg

Ahora logramos obtener la variable "niño" en terminos de la variable "niña". Podemos reemplazar esto en la primera ecuacion del sistema.

niña + niño = 51kg

niña + (niña + 5kg) = 51kg

2*niña = 51kg - 5kg = 46kg

niña = 46kg/2 = 23kg.

Ahora que sabemos esto, usamos las otras ecuaciones para encontrar el peso del niño y el perro:

niño = niña + 5kg = 23kg + 5kg = 28kg

perro = 41kg - niña = 41kg - 23kg = 18kg.

Sí quieres aprender más sobre sistemas de ecuaciones, puedes leer:

brainly.com/question/17174746

6 0
3 years ago
What is the value of x? <br> 28<br> 47<br> 56<br> 33
Yuki888 [10]
The answer is:  " 47 " .
______________________________________________________
                       →   " x = 47 "  .
______________________________________________________
Explanation:
______________________________________________________
<u>Note</u>:   The "vertex" is "floating around" inside the circle.  


6 0
4 years ago
Eric created a rectangular patio using 1-Foot square paving stones,which are sold in batches by the dozen.The patio measures 7 f
Paladinen [302]
His patio needs 56 stones because 8 multiplied by 7 equals 56. So if the paving stones are sold in batches of 12 (a dozen is equal to 12) then we need to find how many times 12 goes into 56. 12 cannot go into 56 evenly, but 12x5=60 which will be more than enough stones for Eric's patio. So Eric will need 5 batches of paving stones for his patio.
7 0
3 years ago
If the marginal revenue (in dollars per unit) for a month is given by MR = −0.5x + 400, what is the total revenue from the produ
Vesna [10]

Given:

Marginal revenue (in dollars per unit) for a month is

MR=-0.5x+400

To find:

The total revenue from the production and sale of 30 units.

Solution:

We know that, total revenue is integration of marginal revenue with respect to quantity.

TR=\int MR dx

TR=\int (-0.5x+400) dx

TR=-0.5\int x dx+400\int 1 dx

TR=-0.5\times \dfrac{x^2}{2}+400x

Now, substitute x=30 in the equation of Total Revenue (TR).

TR=-0.5\times \dfrac{30^2}{2}+400(30)

TR=-0.5\times \dfrac{900}{2}+12000

TR=-225+12000

TR=11775

Therefore, the total revenue from the production and sale of 30 units is $11,775.

6 0
3 years ago
what should you multiply the first equation (top equation) by in order to eliminate the variable x when the two equations are ad
sammy [17]
Multiply by 4.
______
6 0
3 years ago
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