PLEASE HELP! By visual inspection, determine the best-fitting regression model for the data plot below.
2 answers:
The first thing you should do is observe the behavior of the graph.
It is not linear because the rate of change is not constant.
It is not exponential because the rate of change does not grow or decrease rapidly.
For this case the best regression model is a model of the form:
Where,
a <0: This is because we have a parabola that opens downwards.
Therefore, the best regression model is quadratic.
Answer:
By visual inspection, the best-fitting regression model for the data plot is:
A. Quadratic
It is not linear because the rate of change is not constant.
It is not exponential because the rate of change does not grow or decrease rapidly.
For this case the best regression model is a model of the form:
Where,
a <0: This is because we have a parabola that opens downwards.
Therefore, the best regression model is quadratic.
Answer:
By visual inspection, the best-fitting regression model for the data plot is:
A. Quadratic
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Answer:
11700 mm²
Step-by-step explanation:
A rectangle is a quadrilateral with two equal, opposite and parallel sides. Each of the angles in a rectangle is 90°.
The horizontal distance of the rectangle = r + r + r + r = 4r
The vertical distance = r + h + r = 2r + h
Where h is the distance between the midpoint of the 2 up circles and the midpoint of the down circle.
Using Pythagoras:
(2r)² = h² + r²
h² + r² = 4r²
h² = 3r²
h = √3r²
h = r√3
Vertical distance = 2r + h = 2r + r√3
Area of rectangle = vertical distance * horizontal distance
Area = 4r * (2r + r√3) = 8r² + 4r²√3 = 4r²(2 + √3)
Substituting:
Area = 4r²(2 + √3) = 4(28²)(2 + √3) = 11703.711 mm²
Area = 11700 mm² to 3 s.f
