F(x)= -4x^2-6-1 and g(x)=-x^2-5x+3 find (f+g)(X)

x=-1

Step-by-step explanation:

-4x-6-1+x^2-5+3

-3x^2-9=0

-3x^2=9

√-3x^2=√9

-3x=3

x=-1

PLEASE MARK ME AS BRAINIEST ANSWER

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.