Which of the following is true of two lines that are perpendicular? their slopes are the same (for example: m1=2, m2=2) their slopes are the same and have different signs (for example: m1=2, m2=-2) their slopes are the inverse of each other and have different signs (for example: m1=2, m2=-1/2) their slopes are the inverse of each other and have the same signs (for example: m1=2, m2=1/2)

Our star pitcher, foster enlight, can throw a pitch so fast that it gets to the catcher’s mitt before it leaves foster’s fingers! if the team wins a game then the probability that foster was pitching is 0.8 but only if foster had at least one day’s rest since his last pitching assignment. if foster does not have a day off and the team still wins, the probability that foster was pitching drops by half of what it was on the previous day. if the team wins three games in succession from the toronto tachyons and foster pitched in game #2, what is the probability that he pitched in one or more of the other games? (assume that foster did not pitch on the day before the first game of this three game series.)