In the diagram shown, cd = bc and bc = ab. choose the reasons that best support the following reasoning used to show that x = 11. 1. cd = bc and bc = ab; therefore, cd = ab 2. cd = ab, ab = x, and cd = 11; therefore, 11 = x 3. 11 = x; therefore, x = 11 a. 1. substitution property 2. transitive property 3. symmetric property b. 1. transitive property 2. substitution property 3. symmetric property c. 1. symmetric property 2. substitution property 3. transitive property d. 1. transitive property 2. symmetric property 3. substitution property

(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