Answer:
A. 75 km²
Step-by-step explanation:
The area of a triangle
A =1/2 ab sin C where a and b are the lengths of the sides and C is the included angle
A = 1/2 (14)(11) sin (77)
A = 75.0264949885
Answer:
C. The distribution for town A is positively skewed, but the distribution for town B is symmetric.
Hope it helps you out!
Answer:
Center (-13,11) , radius 3
Step-by-step explanation:
The given circle has equation
![x^2+y^2+26x-22y+281=0](https://tex.z-dn.net/?f=x%5E2%2By%5E2%2B26x-22y%2B281%3D0)
We compare this to the general equation.
![x^2+y^2+2ax+2by+c=0](https://tex.z-dn.net/?f=x%5E2%2By%5E2%2B2ax%2B2by%2Bc%3D0)
where (-a,-b) is the center.
This implies that;
2a=26
![\Rightarrow a=13](https://tex.z-dn.net/?f=%5CRightarrow%20a%3D13)
2b=-22
b=-11
The center is therefore (-13,11)
The radius is given by
![r=\sqrt{a^2+b^2-c}](https://tex.z-dn.net/?f=r%3D%5Csqrt%7Ba%5E2%2Bb%5E2-c%7D)
![r=\sqrt{13^2+(-11)^2-281}](https://tex.z-dn.net/?f=r%3D%5Csqrt%7B13%5E2%2B%28-11%29%5E2-281%7D)
![r=\sqrt{9}](https://tex.z-dn.net/?f=r%3D%5Csqrt%7B9%7D)
The radius is 3