Find the area of the polygon.
2 answers:
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Answer:
Step-by-step explanation:
Given points are :
x = -2 0 4
y=f(x) = 0 -6 78
We have to model the parabola with the help of these points
Solution:
We consider a standard equation of parabola
now, we put the points in the equation we get,
at (-2,0) is 4a-2b+c=0
at (0,-6) is c=-6
at (4,78) is 78= 16a+4b+c
now, solving these equation we get, a= 4 , b= 5 , c= -6
so the equation formed with these points is
we can see this in the graph attached.
Answer:
Value of additional data point is 31.
Step-by-step explanation:
We are given the following data set:
34, 18, 18, 40, 11, 22, 30, 25, 19, 21, 45 34, 18, 18, 40, 11, 22, 30, 25, 19, 21, 45
Formula:
The old mean is 24.35
A new data was added in the data. The new mean is 24.667
We have to find the value of additional point.
Let x be the added point in the data set.
Thus, we can write:
Thus, value of additional data point is 31