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➷ Standard deviation = ![\sqrt{(n*p)(1 - p)}](https://tex.z-dn.net/?f=%5Csqrt%7B%28n%2Ap%29%281%20-%20p%29%7D)
Substitute the values in:
= 8.1975...
This can be rounded to give an approximate answer of 8.2
The answer is option A.
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A. x = -6
6-x-x = 18
6-2x =18
-2x = 12
x = -6
Given:
The given system of equations is:
![2x+y=1](https://tex.z-dn.net/?f=2x%2By%3D1)
![x-2y=8](https://tex.z-dn.net/?f=x-2y%3D8)
To find:
The solution to this system of equations by graphing.
Solution:
We have,
![2x+y=1](https://tex.z-dn.net/?f=2x%2By%3D1)
![x-2y=8](https://tex.z-dn.net/?f=x-2y%3D8)
The table of values for first equation is:
x y
0 1
1 -1
Plot the points (0,1) and (1,-1) on a coordinate plane and connect them a straight line.
The table of values for second equation is:
x y
0 -4
2 -3
Plot the points (0,-4) and (2,-3) on a coordinate plane and connect them a straight line.
The graphs of given equations are shown in the below figure.
From the below figure, it is clear that the lines intersect each other at point (2,-3). So, the solution of the given system of equations is (2,-3).
Therefore, the solution to this system of equations is:
x-coordinate: 2
y-coordinate: -3
Answer:
(12.5)×(x)×(1)=12.5x
Step-by-step explanation:
To find out the volume is formula is:
Volume of rectangular prism=length×width×height.
Hence,
Put all the values in the formula and the answer is here