Answer:
A
Step-by-step explanation:
Answer:
0.3
Step-by-step explanation:
The margin of error is calculated as ...
(standard deviation)/√(sample size) × (z*-score)
where the z*-score is chosen based on the desired confidence level.
Here, you have ...
- standard deviation = 2.7
- √(sample size) = √225 = 15
- z*-score for 90% confidence level = 1.645
Putting these values in the above expression for margin of error gives ...
2.7/15·1.645 = 0.2961 ≈ 0.3
Answer: 55.9 degrees and 124.1 degrees
Step-by-step explanation:
The picture is how I solved it and it will be correct
Answer:
The slope is -2/11
Step-by-step explanation:
Here, we want to find the slope connecting the two points
mathematically, that would be;
m = (y2-y1)/(x2-x1)
m = (1-3)/(2-(-9) = -2/11