x = -1

Step-by-step explanation:

Now we have to,

β find the required value of x.

The equation is,

β -10 + x + 4 - 5 = 7x - 5

Then the value of x will be,

β -10 + x + 4 - 5 = 7x - 5

β -11 + x = 7x - 5

β 7x - x = -11 + 5

β 6x = -6

β x = -6/6

β [ x = -1 ]

Hence, the value of x is -1.

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.

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