Nina and ryan each ran at a constant speed for a 100-meter race. each runner’s distance fro the same section of the race is displayed on the left. who had a head start, and how big was the head start?

Step-by-step explanation:

Ryan had a head start of 10 meters.

Step-by-step explanation:

Ryan had a head start of 10 meters.

i used to know but i learned it a long time ago sorry

step-by-step explanation:

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.