Which statement is true about figures ABCD and A'B'C'D'? A'B'C'D' is obtained by translating ABCD 4 units up and then reflecting it about the y-axis.
A'B'C'D' is obtained by translating ABCD 4 units right and then reflecting it about the x-axis.
A'B'C'D' is obtained by rotating ABCD counterclockwise by 180 degrees about the origin and then reflecting it about the y-axis.
A'B'C'D' is obtained by rotating ABCD counterclockwise by 90 degrees about the origin and then reflecting it about the x-axis.

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

i believe it is the square root of 122 because when you turn it on it's side, to where the 5 inches is on the bottom, it looks like it is the same length.

the ratio would be 4: 3, the four being for jackson, and the three being not for him.