A ___ is a transformation that changes the size but not the shape of a figure. A dilation can ____ or ____ a figure
1 answer:
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Step-by-step explanation:
Assuming the data is as shown, restaurant X has a mean service time of 180.56, with a standard deviation of 62.6.
The standard error is SE = s/√n = 62.6/√50 = 8.85.
At 95% confidence, the critical value is z = 1.960.
Therefore, the confidence interval is:
180.56 ± 1.960 × 8.85
180.56 ± 17.35
(163, 198)
Restaurant Y has a mean service time of 152.96, with a standard deviation of 49.2.
The standard error is SE = s/√n = 49.2/√50 = 6.96.
At 95% confidence, the critical value is z = 1.960.
Therefore, the confidence interval is:
152.96 ± 1.960 × 6.96
152.96 ± 13.64
(139, 167)
Answer:
The estimated distance is 405 meter.
Step-by-step explanation:
Given : Your velocity is given by in m/sec, with t in seconds.
To find : Estimate the distance, s, traveled between t=0 and t=8 ?
Solution :
We have to integrate the function from 0 to 8 to get the distance.
Integrate w.r.t t,
We know,
The estimated distance is 405 meter.