Se define la variable aleatoria X como la cantidad de caras que resultan en el lanzamiento de una moneda no cargada 5 veces. ¿Cu´al(es) de las siguientes afirmaciones es (son) verdadera(s)?
I) Los valores que puede tomar la variable X son {1, 2, 3, 4, 5}
II) P(X = 1) = P(X = 5)
III) P(X = 4) = 5 ·

1
2
5
A) Solo I
B) Solo II
C) Solo III
D) Solo I y III
E) Solo II y II

yep

step-by-step explanation:

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

40 i don’t know lololol

a. positive: 2 or 0; negative : 2 or 0; complex: 4or2or0