What is the solution of square root x-4 plus 5 =2

√(x -4) + 5 = 2

Note the equal sign. What you do to one side, you do to the other. Do the opposite of PEMDAS.

First, subtract 5 from both sides

√(x -4) + 5 (-5) = 2 (-5)

√(x -4) = 2 - 5

√(x -4) = -3

Next, get rid of the root by squaring both sides

√(x -4)² = (-3)²

x - 4 = (-3)(-3)

x -4 = 9

Finally, isolate the x by adding 4 to both sides

x - 4 (+4) = 9 (+4)

x = 9 + 4

x = 13

13 is your answer

hope this helps

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.