Which of the following can be used to show that the lines a and b are not parallel to each other? bt
O Show that the sum of the measures of angles 2 and 7 is less than 180°
Show that the sum of the measures of angles 4 and 6 is less than 180°
0 Show that the sum of the measures of angles 3 and 7 is less than 180°
O Show that the sum of the measures of angles 3 and 6 is less than 180°

(co 3) the times that customers spend in a book store are normally distributed with a mean of 39.5 minutes and a standard deviation of 9.4 minutes. a random sample of 25 customers has a mean of 36.1 minutes or less. would this outcome be considered unusual, so that the store should reconsider its displays? no, the probability of this outcome at 0.035, would be considered usual, so there is no problem yes, the probability of this outcome at 0.035, would be considered unusual, so the display should be redone no the probability of this outcome at 0.359 would be considered usual, so there is no problem yes, the probability of this outcome at 0.965 would be considered unusual, so the display should be redone