Tasmania may be the smallest state in Australia, but it contains no fewer than 495 separate Protected Areas with a total area of 2,203,383 hectares (land area: 2,201,962 hectares – 32.23% of the state’s area). 19 of these are National parks, totalling 1,430,762 hectares (20.94% of the state’s area).
... is real. (Geometrically, this means that the parabola described by the quadratic equation touches the x-axis in a single point.)
If the discriminant is positive, then ...