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aksik [14]
3 years ago
8

The first 4 terms of a 10-term geometric series are listed below. Which expression represent the sum of the series? need ASAP

Mathematics
2 answers:
iren [92.7K]3 years ago
8 0

Answer:

x^6

Step-by-step explanation:

do the math on a online calucator

Artemon [7]3 years ago
7 0

Answer:

Step-by-step explanation:

I need help with it too

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Resolver el siguiente sistema de ecuación:
snow_tiger [21]

Answer:

x=-1\\y=4

Step-by-step explanation:

\frac{5x+2y}{3}=1

\frac{2x+y}{2}=1

Vamos a utilizar el método de sustitución. Vamos a despejar la segunda ecuación por alguna de las variables. Elegiré la y porque esta sola.

\frac{2x+y}{2}=1

Vamos a empezar por eliminar ese 2 del denominador. Para hacer esto, multiplicamos por 2 ambos lados de la ecuación.

2x+y=1*2

2x+y=2

Como vamos a despejar la y, restamos 2x en ambos lados.

y=2-2x

Listo.

------------------------------------------------------------------------

Procedemos a reemplazar el valor de y en la primera ecuación.

\frac{5x+2y}{3}=1

\frac{5x+2(2-2x)}{3}=1

\frac{5x+4-4x}{3} =1

Procedemos a operar términos semejantes.

\frac{x+4}{3} =1

Nos deshacemos del 3 multiplicando.

x+4=1*3\\x+4=3

Restamos 4

x=3-4\\x=-1

-----------------------------------------------------------------------------

Una vez encontrado el valor de x, procedemos a reemplazar en cualquier ecuación para encontrar el valor de y. Usaré la segunda ecuación.

\frac{2x+y}{2}=1

\frac{2(-1)+y}{2}=1

Procedemos a resolver;

\frac{-2+y}{2} =1

Multiplicamos por 2.

-2+y=1*2

-2+y=2

Sumamos 2

y=2+2\\y=4

-------------------------------------------------------------------------------

Para comprobar que los valores son correctos, reemplazamos ambos valores en cualquier ecuación y el resultado debe ser igual.

Usaré la primera.

\frac{5x+2y}{3} =1

\frac{5(-1)+2(4)}{3} =1

Resolvemos;

\frac{-5+8}{3} =1

\frac{3}{3}=1

1=1

6 0
4 years ago
What is the awnser to<br> −n+(−3)+3n+5
Fofino [41]

Answer:

2n+2

Step-by-step explanation:

-n+(-3)+3n+5

-3+5+3n-n

2+2n or 2n+2

5 0
3 years ago
A restaurant chain’s owners are trying to decide if they want to open up a franchise in your town. To help them decide, they wan
Ilia_Sergeevich [38]
There is a bias in this sampling method.
The interviewer only interviews people exiting a local restaurant, which means it's more likely for the people to go out to eat regularly.
If he wanted an interview with no bias, he should go out and interview random people on the street, not in front of any business.
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4 years ago
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For statistics like, how many people like the color green over red
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4 years ago
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Twice the difference of x and 2, is -25.<br> What would this be?
Tom [10]

Answer:

2(x + 2) = -25

2x +4 = -25

2x = -29

Step-by-step explanation:

4 0
3 years ago
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