Answer:
This is a statement not a question
The area of the flower bed is 77 square feet
<h3>How to determine the area?</h3>
The given parameters are:
- Shape = Triangle
- Perpendicular sides = 14 feet and 11 feet
The area of the flower bed is calculated as:
Area = 0.5 * Product of perpendicular sides
So, we have:
Area = 0.5 * 14 * 11
Evaluate
Area = 77
Hence, the area of the flower bed is 77 square feet
Read more about areas at:
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So you would start at the origin which is 0 then go down one cause of the -1 and right 2 because of the positive 2
Answer:
Step-by-step explanation:
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Answer:
The minimum sample size needed is 125.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
The margin of error is:
For this problem, we have that:
99% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
What minimum sample size would be necessary in order ensure a margin of error of 10 percentage points (or less) if they use the prior estimate that 25 percent of the pick-axes are in need of repair?
This minimum sample size is n.
n is found when 
So
Rounding up
The minimum sample size needed is 125.
