If ABCD is dilated by a scale factor of 2 about point E, which of the following is true about E'F'?
1 answer:
Given:
ABCD is dilated by a scale factor of 2 about point E.
To find:
The correct statement about the line segment E'E'.
Solution:
The center of dilation E lies on the line segment E'F' and the dilation factor is 2.
Since the center of dilation E is one end point EF, therefore E and E' represents the same point.
It means, E'F' passes through the center of dilation.
Hence the correct option is D.
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Answer:
the 90% of confidence intervals for the average salary of a CFA charter holder
(1,63,775 , 1,80,000)
Step-by-step explanation:
<u>Explanation</u>:-
random sample of n = 49 recent charter holders
mean of sample (x⁻) = $172,000
standard deviation of sample( S) = $35,000
Level of significance α= 1.645
<u> 90% confidence interval</u>
on calculation , we get
(1,63,775 , 1,80,000)
The mean value lies between the 90% of confidence intervals
(1,63,775 , 1,80,000)