A number decreased by three square is: (where x is the number)
x - 3^2
B.) 81
sq rt of x= 12-3
sq rt of x=9
take the ^2 of both sides to get rid of the sq root
x^2= (9)^2
=81
Answer:
mean = 4
medin = violet
mode = light blue
range = 4
Step-by-step explanation:
mean = sum/no
mode = largest number
median = (n+1)/2th item
rnge = largest - smllest
Answer:
![y=-x+7](https://tex.z-dn.net/?f=y%3D-x%2B7)
Step-by-step explanation:
Equation of straight line is given as
![y-y_1=m(x-x_1)](https://tex.z-dn.net/?f=y-y_1%3Dm%28x-x_1%29)
where slope m is calculated as
![m=\frac{y_2-y_1}{x_2-x_1}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D)
<u>Here </u>
![(x_1, y_1)=(1, 6) \ \ and \ \ (x_21, y_2) = (5, 2)](https://tex.z-dn.net/?f=%28x_1%2C%20y_1%29%3D%281%2C%206%29%20%5C%20%5C%20and%20%5C%20%5C%20%28x_21%2C%20y_2%29%20%3D%20%285%2C%202%29)
![m = \frac{2 - 6}{5 - 1}\\m=\frac{- 4}{4} \\m=-1](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%7B2%20-%206%7D%7B5%20-%201%7D%5C%5Cm%3D%5Cfrac%7B-%204%7D%7B4%7D%20%5C%5Cm%3D-1)
<u>Equation of line that passes through the points (1,6) and (5,2)</u>
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Answer: There is no polygon with the sum of the measures of the interior angles of a polygon is 1920°.
Step-by-step explanation:
The sum of the measures of interior angles of a polygon with
sides is given by:-
![(n-2)\times180^{\circ}](https://tex.z-dn.net/?f=%28n-2%29%5Ctimes180%5E%7B%5Ccirc%7D)
Given: The sum of the measures of the interior angles of a polygon is 1920°.
i.e. ![(n-2)\times180^{\circ}=1920^{\circ}](https://tex.z-dn.net/?f=%28n-2%29%5Ctimes180%5E%7B%5Ccirc%7D%3D1920%5E%7B%5Ccirc%7D)
![n-2=\dfrac{1920}{180}\\\\ n= \dfrac{1920}{180}+2\\\\ n=\dfrac{2280}{180}=12.67](https://tex.z-dn.net/?f=n-2%3D%5Cdfrac%7B1920%7D%7B180%7D%5C%5C%5C%5C%20n%3D%20%5Cdfrac%7B1920%7D%7B180%7D%2B2%5C%5C%5C%5C%20n%3D%5Cdfrac%7B2280%7D%7B180%7D%3D12.67)
But number of sides cannot be in decimal.
Hence, there is no polygon with the sum of the measures of the interior angles of a polygon is 1920°.