If we divide 15 by 42:
15 / 42 = 0.3571 or 35.71%
Since the level of significance is 0.05, an accuracy of 35.71%, based on the data, the results of the polygraph suggest that the polygraphs are not effective in distinguishing between truths and lies.
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Find the difference vertically( North and South) and the difference horizontally ( East and West)
Then use the Pythagorean Theorem.
600 North - 200 South = 400 m
400 West - 100 East = 300 m
Now using the Pythagorean Theorem;
400^2 + 300^2 = total displacement^2
Total displacement^2 = 160,000 + 90,000
Total displacement^2 = 250,000
Total displacement = √250,000
Total displacement = 500 m
Answer:
Length=17
Width=13
Step-by-step explanation:
The general formula for calculating the perimeter of a rectangle is 2(l+w)
L=length
W=width
But this value is not given specifically in the question,so we will have to interpret the question
So let solve this
Let the length of the rectangle be x
The width is 4m longer than the length,4+x
So let's solve
2(x+4+x)=60
2(2x+4)=60
4x+8=60
Substrate 8 from both sides
4x=52
Let's make x the subject of formula by dividing both sides by 4
x=13
So the width is 13
Let's calculate the length
4+x
4+13
17
Length=17
Width=13