What is the volume of the cone to the nearest subic meter. r=4 h=5 A.)21m3
B.)84m3
C.)168m3
D.)335m3

B.) 84m3

Step-by-step explanation:

V = 1/3 pi r2 h

1/3 × 22/7 × 4 × 4 × 5

84m3

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.

24 units

step-by-step explanation: