19. Persevera en la resolución de problemas Una bolsa contiene 8 monedas azules y 6 monedas rojas. Se saca una moneda al azar y se reemplaza por tres del otro color. para. ¿Cuál es la probabilidad de que la moneda extraída sea azul?

let's first notice, the center of the hyperbola is at the origin, since the focus points are equidistantly 3 units away from the origin, that also means that the distance "c" from the center to either focus is 3.

it should also be notable that, the traverse axis for this hyperbola is vertical, or namely over the y-axis and therefore, the positive fraction will be the one with y-variable.

the traverse "a" component or distance from the center to either vertex is not 2, is more than 2, so we can safely put it at √5 ≈ 2.24.

if the distance from d to d' is 10 and the distance from a to d is 2, what is the scale factor