The perimeter of a rectangle is 9 inches, and the length of the rectangle is 1.5 inches. which equation can be used to determine, w, the width of the rectangle?
a. 3w - 2 = 9 b. 2w + 3 = 9
c. 3 - 2w = 9
d. 2 + 3w = 9

D

Step-by-step explanation:

derived from the formula of perimeter of rectangle[2(l+w)]

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.