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Explanation:
Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. Find
2 answers:
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Answer:
Step-by-step explanation:
We have been give that one a street map the vertices of a block are w(20,30), x(90,30), y(90,120), and z(20,120). The coordinates are measured in yards. We are asked to find the perimeter and area of the block.
First of all, we will plot our given points on coordinate plane as shown in the attachment.
We can see that block wxyz is in form of a rectangle. We know that perimeter of rectangle is two times the sum of length and width.
The length of the rectangle will be length of segment wx that is the difference between x-coordinates of x and w.
The width of the rectangle will be length of segment wz that is the difference between y-coordinates of z and w.
Therefore, the perimeter of the block is 320 yards.
The area of the block will be length times width.
Therefore, the area of the block is 6300 square yards.
Answer:
And then we can calculate the standard deviation with the following formula:
And replacing we got:
So as we can see both deviations are the same, the only thing that change is the mean.
Step-by-step explanation:
For this case we have the following data given:
Data Set I: 12 25 37 8 41
Dataset II: 26 39 51 22 55
And for this case we want to calculate the deviation for each dataset.
First we need to calculate the sample mean for each dataset with the following formula:
And replacing we got:
And then we can calculate the standard deviation with the following formula:
And replacing we got:
So as we can see both deviations are the same, the only thing that change is the mean.