Answer:

And we can use the following formula:

And replacing the info we got:

Step-by-step explanation:
We define two events for this case A and B. And we know the probability for each individual event given by the problem:


And we want to find the probability that A and B both occurs if A and B are independent events, who menas the following conditions:


And for this special case we want to find this probability:

And we can use the following formula:

And replacing the info we got:

Answer:think of many situations you can come up with or problems you can solve which will end up with the same answer if u use different methods
Step-by-step explanation:
Answer:
x=1
y=-3
z=-7
Step-by-step explanation: