Answer:
I got 8, but I'm not sure.
Step-by-step explanation:
So I first did -6 + 5, and I got -1 as an answer. Then I did -1 plus 9 because both sides need to be equal. I wrote that x = 8 but that wasn't an option. I'm not sure if this was helpful and I'm really sorry if it's not.
Answer:
The interval is : (7.206 , 7.794)
Step-by-step explanation:
The mean is = 7.5
Standard deviation = 3
n = 400
At 95% confidence interval, the z score is 1.96

And 
and 
So, the interval is : (7.206 , 7.794)
Answer:45675432
Step-by-step explanation:
Answer:
$289.66
Step-by-step explanation:
A=P(1+r)^t
P=250
r= .0375
t= 4
A=250(1+.0375)^4
A= 289.66