<span>Elevation of city D is half the elevation of city C, It is given that the evelation of city C is 12 feet above the sea level level. Hence elevation of city D=12/2=6feet above the sea level. This is the answer to part A The elevation of city D=x/2, where x is the elevation of city C in feet. For part B write, here x=12 hence x/2=6 Therefore the elevation of city D is 6feet above the sea level.
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Answer:
So then the correlation coefficient would be r =0.98726
And the determination coeffcient would be:

And that means that the a linear model will explain about 97.5% of the variability in the data. So for this case we can conclude that we have a strong linear relationship.
Step-by-step explanation:
Data given
col1 x 20 40 60 80
col2 y 0.24 1.10 1.71 2.12
Solution to the problem
We can find the correlation coefficient we can use this formula:
For our case we have this:
n=4
So then the correlation coefficient would be r =0.98726
And the determination coeffcient would be:

And that means that the a linear model will explain about 97.5% of the variability in the data. So for this case we can conclude that we have a strong linear relationship.
This is the concept of trigonometry:
The vertical height will be given by the formula:
sin θ= opposite/hypotenuse
where:
θ=60°
opposite=vertical height=a0
hypotenuse=slanting side=300 ft
thus plugging the values we get:
sin 60=a0/300
hence
a0=300 sin 60
thus evaluating this we get
a0=259.81 ft
Thus the vertical height is 259.81 ft~260 ft
Answer:
5x-4x=-1+7
X=6
Step-by-step explanation:
Answer:
13
Step-by-step explanation:
9+4=13
when dividing, exponents subtract