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sweet [91]
3 years ago
10

Select the correct answer.

Mathematics
2 answers:
My name is Ann [436]3 years ago
7 0

Answer:

B

Step-by-step explanation:

That was actually trickier than I thought it would be

I was looking for 4(x-4),   but 4(x-2)(x+2) also works

diamong [38]3 years ago
6 0

Answer:

4(x - 2)(x + 2)  (Answer B)

Step-by-step explanation:

4x^2 - 16 is the difference of two squares, a case in which there is a simple formula to remember:  a^2 - b^2 = (a - b)(a + b)

4x^2 - 16 = (2x - 4)(2x + 4)

This can be further simplified:  2(x - 2)(2)(x + 2) = 4(x - 2)(x + 2)  (Answer B)

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se quiere pintar una pared en forma de hexágono regular y se sabe que cada lado mide 3m y que su apotema es de 2,8m cual es el a
qwelly [4]

Answer:

El área total a pintar será:

A_{tot}=25.2\: m^{2}

Step-by-step explanation:

Sabiendo el apotema y la longitu de los lados, podemos encontrar el área de un triangulo. Recordemos que, si trazamos rectas del centro del hexágono a los vértices, se formaran 6 triángulos equiláteros.

El área de un triángulo es:

A_{t1}=\frac{b*a}{2}

b es la longitud de la base (b=3 m)

a es la apotema, osea la altura del triangulo (a = 2.8)

A_{t1}=\frac{2.8*3}{2}

A_{t1}=4.2\: m^{2}

Ahora, solo debemos mutiplicar ese valor por 6 para determianr el área total de la pared.

A_{tot}=25.2\: m^{2}

Espero te haya sido util!

5 0
3 years ago
Helppppppppp photo attached
OverLord2011 [107]

Answer:

D. 4x-13=1

Step-by-step explanation:

Four times a number is 4x. 13 less means you subtract 13 from it.

5 0
2 years ago
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disa [49]

Answer:

-2,3

Step-by-step explanation:

7 0
3 years ago
Which one is correct?
jeka94

Answer:

The first one (A) is the answer I got!

Step-by-step explanation:

5 0
3 years ago
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Type nae nae for 5 marks
baherus [9]

Answer:

nae nae

Step-by-step explanation:

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