Someone solve question b with working really stuck much appreciated!

a)

b)

Step-by-step explanation:

a) We have the following equation:

(1)

Where is the time is seconds, is the distance in meters and is the acceleration due gravity

If we divide numerator and denominator inside the square root by 2:

We will have:

Hence:

b) Using the same equation (1) with thw following data:

We will have the reaction time:

answer: its because of life

step-by-step explanation: i dont know

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.