Circumference = 2 x radius x PI
Circumference = 2 x 3.8 x 3.14
Circumference = 23.86
answer: the closest one is A. 23.8 FT.
The answer is x<9/2
hope it helps
Answer:
We are confident that the true mean for the average income of all U.S. households is between (58820;71180)
Step-by-step explanation:
Information provided
represent the sample mean for the average income of all US households
population mean
s=15000 represent the sample standard deviation
n=25 represent the sample size
Confidene interval
The confidence interval for the true mean of interest is given by the following formula:
(1)
The degrees of freedom are given by:
The Confidence level is is 0.95 or 95%, then the significance is and , the critical value for this case would be
Replacing in formula (1) we got:
We are confident that the true mean for the average income of all U.S. households is between (58820;71180)
Answer:
the answer will have to be c and d
Answer: option B. The paper crease divides the line segment into 2 congruent segments.
This is true whenever you fold the paper in such a way that the edges of the segment overlap when the paper is folded. Then when you unfold the paper, the crease passes trough the middle of the segment showing two identical (congruent) parts.