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andrew-mc [135]
2 years ago
10

Planteamiento algebraico

Mathematics
1 answer:
salantis [7]2 years ago
8 0

Considerando la definición de una ecuación, la expresión que representa esta situación es x(x+5)= 100.

<h3>Definición de ecuación</h3>

Una ecuación es la igualdad existente entre dos expresiones algebraicas conectadas a través del signo de igualdad en la que figuran uno o varios valores desconocidos, llamadas incógnitas, además de ciertos datos conocidos.

Los miembros de una ecuación son cada una de las expresiones que aparecen a ambos lados del signo igual.

<h3>Expresión del área del jardín rectangular</h3>

En este caso, se sabe que el área del jardín rectangular es 100 m² y que uno de sus lados es de 5 m mayor que el otro. Esto puede ser expresado mediante una ecuación, donde consideras que "x" es la incógnita, que representa la medida de uno de los lados del jardín.

Por otro lado, el área de un rectángulo se calcula a partir de los dos lados diferentes (a y b). Es el producto de los dos lados contiguos del rectángulo, esto es, el producto entre el lado mayor por lado menor.

Entonces:

  • Lado del jardín rectangular: x
  • Lado 5 m mayor: x + 5
  • Área del jardín rectangular: 100 m²

Entonces, la ecuación queda expresada como:

x(x+5)= 100

En resumen, la expresión que representa esta situación es x(x+5)= 100.

Aprende más sobre ecuaciones con estos ejemplos:

<u>brainly.com/question/24581345</u>

<u>brainly.com/question/24585838?referrer=searchResults</u>

<u>brainly.com/question/24603998</u>

<u>brainly.com/question/22694378?referrer=searchResults</u>

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Answer:

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Step-by-step explanation:

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3 years ago
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Elenor and Max used two rectangular wooden boards to make a set for the school play. One board was 6 feet long, and the other wa
Tanzania [10]

Answer:

The width is 5.25 feets

Step-by-step explanation:

The dimensions of the two rectangular wooden boards that Elenor and Max used to make a set for the school play are shown in the attached photo. The widths of the two boards are equal. The lengths are 6 feets and 51/2 feets

Area of each rectangular length, L × Width, W

Area of the longer rectangular board

= 6x W = 6W feet^2

Area of the shorter rectangular board

= 11/2 x W = 11W/2 feet^2

The area of the set is 60-3/8 square feet. This is equal to 483/8 feet^2.

Therefore,

483/8 = 6W + 11W/2 = 23W/2

8 × 23W = 483 × 2

184W = 966

W = 966/184 = 5.25 feets

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3 years ago
Limit (sin4x-4sinx)/x^3 when x close to zero
BartSMP [9]

\Large \boxed{\sf \bf \ \ \lim_{x\rightarrow0} \ {\dfrac{sin(4x)-4sin(x)}{x^3}}=-10 \ \  }

Step-by-step explanation:

Hello, please consider the following.

Using Maclaurin series expansion, we can find an equivalent of sin(x) in the neighbourhood of 0.

sin(x) \sim  \left(x-\dfrac{x^3}{3!}\right)\\\\\text{So, in the neighbourhood of 0}\\\\\begin{aligned}(sin(4x)-4sin(x)) &\sim \left( 4x-\dfrac{(4x)^3}{3!}-4x+\dfrac{4x^3}{3!}\right)\\\\&\sim \left(\dfrac{x^3*4*(1-4^2)}{3*2}\right)\\\\&\sim \left(\dfrac{x^3*2*(-15)}{3}\right)\\\\&\sim \left(x^3*2*(-5)\right)\\\\&\sim \left(x^3*(-10)\right)\\\end{aligned}

Then,

\displaystyle \lim_{x\rightarrow0} \ {\dfrac{sin(4x)-4sin(x)}{x^3}}\\\\= \lim_{x\rightarrow0} \ {\dfrac{-10*x^3}{x^3}}\\\\=-10

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4 years ago
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Question 4) Identify the surface area of the composite figure.
netineya [11]

The surface area of the composite figure is given by 730 sq.in

<h3>What are Composites ?</h3>

Composites are solid figures made up of basic shapes like rectangle , square and even of three dimensional figures like cube , cuboid etc.

It is given in the question to determine the area of the composite figure

Area of Cube is

Area = 6 * side²

Area = 6 * 4² = 96 sq.in

The surface area of the cuboid is equal to

Sum of surface area of all the sides

As the opposite sides are same

7x10x2 + 15x10x2 + 7x15x2

650 sq.in

As the surface area of the base of the cube is counted twice

Therefore it will subtracted from the total

96 + 650 - 4*4

=730 sq.in

Therefore the surface area of the composite figure is given by 730 sq.in

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lora16 [44]

Answer:18x cubed +8x squared

Step-by-step explanation:

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