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bixtya [17]
2 years ago
11

What is the solution to the system of equations below? y = -2x - 6 and 2y = -4x - 12

Mathematics
1 answer:
katen-ka-za [31]2 years ago
6 0

Answer: Infinitely Many Solutions

Step-by-step explanation:

Substitute y into the second equation:

2(-2x-6)=-4x-12

Then you get -4x-12=-4x=-12. Since this is 0=0 it would make it infinitely many solutions.

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she has a 1/4 of the property remaining

Step-by-step explanation:

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2 years ago
The critical value t* gets larger as the confidence level increases. True or false?
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Answer:

We can find the critical value t_{\alpha/2}

And for this case if the confidence increase the critical value increase so then this statement is True

Step-by-step explanation:

For a confidence level given c, we can find the significance level like this:

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We can find the critical value t_{\alpha/2}

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3 years ago
Una recta con pendiente -2 ´pasa por el punto P(5, -1). La abscisa del punto Q que está en esa recta es 1. Encuentre la ordenada
oksian1 [2.3K]

Answer:

La ordenada de Q es 7.

Step-by-step explanation:

La ecuación de una recta es:

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Para este problema, sabemos que la pendiente es -2

Entonces:

a = -2

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También sabemos que esta recta pasa por el punto (5, -1)

Esto significa que cuando evaluamos la ecuación en x = 5, y toma el valor y = -1

Si reemplazamos esos valores en la ecuación, obtenemos:

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y = -2*x + 9

Sabemos que el punto Q está en la línea, y la abscisa de este punto es 1.

Entonces este punto es Q (1, k)

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Porque nuestra línea también pasa por este punto, podemos concluir que cuando x = 1, y = k

Reemplazando eso en la ecuación tenemos:

k = -2*1 + 9 = -2 + 9 = 7

k = 7

La ordenada de Q es 7.

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3 years ago
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I can maybe help, what's the question
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Answer:

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Step-by-step explanation:

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