Answer:
The sample mean is 3.48 and the margin of error is 0.44.
Step-by-step explanation:
We know that the confidence interval is written in the form "x − E to x + E", meaning x: sample mean or estimator, and E: margin of error.
To calculate the mean, we can calculate the average of both bounds of the confidence interval:
With one of the bounds, we can calculate the margin of error E
Angle mes BCD = (mes Arc AE-mes ARC BD)/2
Plug: mes BCD = (64+20)/2 = 44° (Number C)
Answer:
x= log120/7log3
Step-by-step explanation:
7x=log3 120
7x= log120/log3/7
x= log120/7log3
Answer:
Step-by-step explanation:
Answer D I just fot it right on my test