Given,
The population of the county in 2000 is 844.
The population of the county in 2009 is 856.
The population of the county in 2015 is 810.
Here, the population of 2000 and 2009 is given.
As known, the value changes linearly between two points.
When the value changes linearly between two points, then value of point between given points can be obtained by interpolation.
Hence, to predict the population of county interpolation is used.
Answer:
B
Step-by-step explanation:
<em>y</em><em>=</em><em>kx</em><em>+</em><em>m</em>
<em>k</em><em>=</em><em>y2</em><em>+</em><em>y1</em><em> </em><em>/</em><em> </em><em>x2</em><em>+</em><em>x1</em><em> </em>
(3,5) and (7,9)
k=(9-5)/(7-3)=4/4=1
Now we want to find out what <em>m</em><em> </em>is. This is by inserting a point in the equation of the line y=kx+m.
so I'll pick (3,5)
5=1×3+m
m= 2
To check if it's correct we could try it with the other point, (7,9).
9=1×7+m
m=2
Therefor the equation would be. y=1x+2
The answer is d, (-2.5,0.75)
Answer:
<h2>The mean is 26666.67 and the standard deviation is 372919430.33.</h2>
Step-by-step explanation:
The mean means the average of the numbers.
The mean will be 
.
The differences of the earnings from the mean are 1666.67, 26997.33, 33997.33.
Squaring the numbers we get, 2777788.89, 728855827.13, 1155818447.12.
We need to find the mean of the above numbers to get the standard deviation.
Thus, the standard deviation is 
.
Answer:
a=14.63
c=13.63
Step-by-step explanation:
a = sinA*b
c = sinC*b
