We can't see any given circle. The general form for a circle centered at the origin with radius r is
Matt is climbing a mountain. When his elevation is higher than 1600 meters, breathing is difficult for Matt. Write an inequality
2 answers:
Answer:
h>1600.
Step-by-step explanation:
We are told that Matt is climbing a mountain. When his elevation is higher than 1600 meters, breathing is difficult for Matt. We are asked to write an inequality that describes h, the elevation at which breathing is difficult for Matt.
We know when elevation (h) will be higher than 1600 meters Matt will face difficulty in breathing. We can represent this situation as: .
Therefore, inequality representing the elevation at which breathing is difficult for Matt will be .
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Answer:
The 98% confidence interval for the mean purchases of all customers is ($37.40, $61.74).
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the mean subtracted by M. So it is 49.57 - 12.17 = $37.40.
The upper end of the interval is the mean added to M. So it is 49.57 + 12.17 = $61.74.
The 98% confidence interval for the mean purchases of all customers is ($37.40, $61.74).
Answer: (2, 18)
Step-by-step explanation:
When x=2, .
So, it should pass through (2, 18).