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andre [41]
3 years ago
9

What is the factored form of x^2 - 196 ?

Mathematics
2 answers:
Luba_88 [7]3 years ago
8 0
D. (x-14)(x+14)
a negative and a positive multiplied makes a negative outcome so -14•+14=-196. x•x is = to x^2
enyata [817]3 years ago
5 0
X² - 196 :

Factored form:

⇒ ( x - 14 ) ( x + 14 )

Answer d

hope this helps!

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PilotLPTM [1.2K]
X = 13/2 or 6 1/2. Hope this helps!
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4 years ago
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6 + 3x = 2(2 + x)<br><br> What is this answer I need help please anytime soon
Aloiza [94]
6+3x = 2(2 + x)

First we will need to open the parenthesis by multiplying the number that’s in front of them:

6+3x=4+2x

Now we need to separate the numbers from the X. By subtracting 2x from both sides:

6+3x=4+2x
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3 years ago
Sea un cuadrado de 2 pulgadas de lado uniendo los puntos medios se obtiene otro cuadrado inscrito en el anterior si repetimos es
Ne4ueva [31]

Answer:

1) La serie geométrica formada es

4, 2, 1,..., ∞

2) La suma al infinito de las áreas de los cuadrados es 8 in.²

Step-by-step explanation:

1) El área del primer cuadrado, a₁ = 2² = 4 pulgadas²

El área del siguiente cuadrado, a₂ = (√ (1² + 1²)) ² = (√2) ² = 2 pulg²

El área del siguiente cuadrado, a₃ = ((√ (2) / 2) ² + (√ (2) / 2) ²) = 1 pulg²

Por lo tanto, la razón común, r = a₂ / a₁ = 2/4 = a₃ / a₂ = 1/2

Las áreas de los cuadrados progresivos forman una progresión geométrica como sigue;

4, 4×(1/2), 4 ×(1/2)²,...,4×(1/2)^{\infty}

De donde obtenemos la serie geométrica formada de la siguiente manera;

4, 2, 1,..., ∞

2) La suma de 'n' términos de una progresión geométrica hasta el infinito para -1 <r <1 se da como sigue;

S_{\infty} = \dfrac{a}{1 - r}

Por lo tanto, la suma de las áreas de los cuadrados hasta el infinito se obtiene sustituyendo los valores de 'a' y 'r' en la ecuación anterior de la siguiente manera;

La \ suma \ al \ infinito \ del \ cuadrado \ S_{\infty}  = \dfrac{4 \ in.^2}{1 - \dfrac{1}{2} } = \dfrac{4 \ in.^2}{\left(\dfrac{1}{2} \right)} = 2 \times 4 \ in.^2= 8 \ in.^2

La suma al infinito de las áreas de los cuadrados, S_{\infty} = 8 in.²

7 0
3 years ago
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Sladkaya [172]

Answer:

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Step-by-step explanation:

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sammy [17]

Answer:

4 kg of sugar would contain 1.2 \times 10^9 crystals.

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Divide both sides by 3

\frac{3x}{3} = \frac{3.6 \times 10^9}{3}

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4 kg of sugar would contain 1.2 \times 10^9 crystals.

5 0
3 years ago
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