“reflection across y= -1” HELP
1 answer:
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Answer:
c) 0.22
Step-by-step explanation:
<u>Explanation</u>:-
A random sample of 500 army recruits has a mean height of 68 inches with a standard deviation of 2.5 inches.
The sample size 'n' = 500
Given the mean of the sample = 68 inches
Given standard deviation = 2.5 inches
The 95% of confidence interval ∝ = 1.96
Margin of error = 0.2191 ≅0.22
<u>Conclusion</u>:-
The Margin of error at 95% of confidence intervals = 0.22
Answer:
The new scale drawing is
the new dimensions of the scale drawing in the attached figure
Step-by-step explanation:
<em>Find the original scale drawing </em>
we know that
6 cm in the drawing represent 3 meters in the actual
so
Simplify
The original scale was
That means ---> 2 cm in the drawing represent 1 meter in the actual
<em>Find the new scale drawing </em>
we know that
18 cm in the drawing represent 3 meters in the actual
so
Simplify
The new scale is
That means ---> 6 cm in the drawing represent 1 meter in the actual
therefore
the new dimensions of the scale drawing in the attached figure
