Answer:
is it A?
Step-by-step explanation:
I think it's A because no one has answered!
D is correct because you could put in a value for x and get a true value for y
exg
x=3
y=14(3)-9
y=42-9
y=33
It’s equal to 1
2x divide by 2x = 1
— —
2x divide by 2x 1
which equals to 1
Answer:
b. $28
Step-by-step explanation:
We have these following probabilities:
0.4 = 40% probability of $40
0.2 = 20% probability of $30
0.2 = 20% probability of $20
0.2 = 20% probability of $10
The expected value is:
We multiply each value by its probability. So

So the correct answer is:
b. $28