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2 years ago

Parallelogram proof, plz help

Mathematics

1 answer:

VladimirAG [237]2 years ago

7 0

Step-by-step explanation:

Parallelogram proves are as follows:

Both pairs of opposite sides are parallel
Both pair of opposite angles are equal
Both pair of opposite sides are congruent.
One angle is supplementary to the other consecutive angle.
Diagonals should bisect each other.

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1 year ago

QUESTION 20

Elodia [21]

Answer:

B. -55

Step-by-step explanation:

La resta entre ambas funciones consiste en la sustracción de términos semejantes como demostraremos a continuación:

1) $f(x) =-2\cdot x ^{2}-6$ Dado

2) $g(x) = x+4$ Dado

3) $(f-g)(x) = (-2\cdot x^{2}-6)-(x+4)$ Definición de resta de funciones.

4) $(f-g)(x) = (-2\cdot x^{2}-6)+(-1) \cdot (x+4)$ $(-1)\cdot a = -a$

5) $(f-g)(x) = (-2\cdot x^{2}-6) + (-x-4)$ Propiedad distributiva/ $(-1)\cdot a = -a$

6) $(f-g)(x) = -2\cdot x^{2}-x+(-6-4)$ Propiedad conmutativa

7) $(f-g) (x) = -2\cdot x^{2}-x-10$ Sustracción de términos semejantes/Resultados.

A continuación, evaluamos la función resultante en $x = -5$ :

$(f-g)(-5) = -2\cdot (-5)^{2}-(-5)-10$

$(f-g)(-5) =-55$

Por ende, la respuesta correcta es B.

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2 years ago

Create a circle with a centre of (0,0) and a radius of 13

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Answer:

The equation would be:

$x^2+y^2=169$

In the attachment!!!

<em>Hope this helps!!!</em>

<em> $Sofia$ </em>

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