What is the length of AB?
15
9
4.5
18
Answers
Answer:
18
Step-by-step explanation:
Let X be the midpoint of the chord AB
Distance between X and the centre:
15-3 = 12
XB² = 15² - 12²
XB² = 81
XB = 9
AB = 2XB = 18
Answer:
4.5
Step-by-step explanation:
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X^3 times x^? equals to x^17 what’s the missing exponent?
Answers
Answer:
The upper bound of the interval is below 0.5, which means that it can be claimed that a majority of people are not in favor of legalized abortion
Step-by-step explanation:
Confidence interval:
Sample proportion plus/minus margin of error.
In this question:
Sample proportion of 0.45, margin of error of 0.04. So
0.45 - 0.04 = 0.41
0.45 + 0.04 = 0.49
The confidence interval is of (0.41,0.49). The upper bound of the interval is below 0.5, which means that it can be claimed that a majority of people are not in favor of legalized abortion
Final answer:
Given the margin of error of 4 percentage points, we cannot definitively state that a majority are against legalized abortion, even though the survey shows a 45% favor rate. The true proportion could be anywhere from 41% to 49%.
Explanation:
The question relates to the interpretation of survey results and margin of error. The study indicates that 45% of the surveyed adults favor legalized abortion, down from 55%. However, the study also reveals a margin of error of 4 percentage points.
This implies that the true proportion of adults favoring legalized abortion could be anywhere from 41% (45% - 4%) to 49% (45% + 4%). So, we cannot definitively say that a majority of adults are opposed to legalized abortion, as the result could still be close to 50%, given the margin of error.
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B. Confidence Level: 95%; Confidence Interval: 40 to 50
C. Confidence Level: 68%; Confidence Interval: 43 to 47
D. Confidence Level: 95%; Confidence Interval: 42 to 48
Answers
ConfidenceLevel: 95%; Confidence Interval: 42 to 48. Then the correct option is D.
How to interpret the confidence interval?
Suppose the confidence interval at P% for some parameter's values is given by x ± y.
That means that the parameter's estimated value is P% probable to lie in the interval
[x - y, x + y]
Four research teams each used a different method to collect data on how fast a new iron skillet rusts.
Assume that they all agree on the sample size and the sample mean (in days).
Use the (confidence level; confidence interval) pairs below to select the team that has the smallest sample standard deviation.
Then we have
48 - 42 = 6
Then we have
6/2=3
3 is smallest
Then the correct option is D.
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Answer:
D. Confidence Level: 95%; Confidence Interval: 42 to 48
Step-by-step explanation:
48-42=6
6/2=3
3 is smallest
I tested A and got it incorrect so D is the awnser
Answers
The additional number of units required is 10 units.
Given that:
Total number of units needed = 60 units
Total number of units per case = 14
How to find the total number of cases required for the given question?
So, the total number of cases required=Number of units needed / number of units per case.
Number of cases required = 60/14 = 4.285 (this means that 5 cases are required as 4 cases won't be up to 60 units)
With 5 cases, we have exceeded the required units needed :
Additional units will be : (14×5) - 60
Additional units = 70 - 60 = 10 units
Therefore, the additional number of units required is 10 units.
To learn more about the unitary method visit:
brainly.com/question/23423168.
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Answer:
4 with a remainder of 4
Step-by-step explanation:
60 divided by 14 is 4 with a remainder of 4
Answers
Answer:
2/3
Step-by-step explanation:
Choose two points from the graph; count how far one point is away from the other. Simplify if needed.
Answers
Answer:
speed=200 m/s
Step-by-step explanation: