Matrix index is row then column, so b42 is the fourth row and seconds column of the matrix b. In this case, that is -1.
Answer:
D
Step-by-step explanation:
They have different slopes but same Y intercepts so there is ONE SOLUTION.
D because I actually had the same exact question
Sample space = HHH, HHT, HTH, THH, TTT, TTH, THT, HTT (8 possibilities)
Desirable outcomes = TTH, THT, TTH (3 possibilities)
Required probability = 3/8