In exercises 19 - 22, determine if f is continuous at the indicated values. if not, explain why.
19. f(x) = sinx
x=0
x> 0
(a) x=0
(b) x=7
x< 1
x> 1
f(x) = { x - x
14-18-2
(a) x=0
(b) x=1 i
21. f(x) = {
x +5x+4
x2+3x+2
**-1
3
(a) x = -1
(b) x = 10
22.819) = {
x² – 64
x2 - 11x+24
oo oo
5
(a) x=0
(b) x = 8

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.

600,000,000,000, or 6e14

step-by-step explanation: