Answer:

Step-by-step explanation:
Given
2 number die
Required
P(Sum = 4)
The sample space of 2 die is:


The pairs that adds up to 4 are:


So, the probability is:


Answer:
10+10
Step-by-step explanation:
I think that they will meet in 3 hours and 11 min but I’m not too sure
Answer:
-6
Step-by-step explanation:
= -3 × -3
-3 × -3 = 9
7 × -3 =-21
9 - 21 +6 = -6
Answer:
a) X=0
b) X=2,-2
Step-by-step explanation: