Find the area of the shaded region in the picture below Hint** - The area of a triangle is the base of the triangle times the height divided by 2

​

Help

b

Step-by-step explanation:

i got it correct

30 cm²

Step-by-step explanation:

solve for area of rectangle: 12 x 4 = 48 cm²

solve for area of triangle: 9 x 4= 36 / 2 = 18 cm²

subtract: 48- 18 = 30cm²

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.

555.99.

step-by-step explanation:

hope this