Answer:
sorry i did not see my link
Step-by-step explanation:
Answer:
A) The answer is a to the second power
B) The answer is c to the first power or you can just write c
Step-by-step explanation:
If there are exponents that have the same base and you are dividing, you will need to subtract the exponents.
A)5-3=2
The answer is a to the second power
B) 4-3=1
The answer is c to the first power or you can just write c
Hope this helps!
312,000$.
I just found 60 percent of 520,000 so I hope that’s what you wanted, and I am truly sorry if it isn’t.
Answer:
y=-1/3x-1
Step-by-step explanation:
Perpendicular lines have slope that are opposite sign and reciprocals
3x-y=12 has a slope of 3, therefore perpendicular line must have slope of -1/3
2=-9(-1/3)+b
2=3+b
b=-1
Answer:
The best point of estimate for the true mean is:
Since the time can't be negative a good approximation for the confidence interval would be (0,5.248) minutes. The interval are tellling to us that at 95% of confidence the average late time is lower than 5.248 minutes.
Step-by-step explanation:
Information given
represent the sample mean for the late time for a flight
population mean
represent the population deviation
n=76 represent the sample size
Confidence interval
The best point of estimate for the true mean is:
The confidence interval for the true mean is given by:
(1)
The Confidence level given is 0.95 or 95%, th significance would be 
and 
. If we look in the normal distribution a quantile that accumulates 0.025 of the area on each tail we got 
Replacing we got:
Since the time can't be negative a good approximation for the confidence interval would be (0,5.248) minutes. The interval are tellling to us that at 95% of confidence the average late time is lower than 5.248 minutes.
