Evaluate the valence intensity of the following tweet, considering the mood of the author. Give a score between 0 and 1 inclusive, where 0 is the most negative and 1 is the most positive.
Tweet: *gen math class*\n\nms: what is the value of x in this eq'n?\n\nme: x is 10....tial dread and suffering is a prison without escape, only death.