Answer:
![\huge\boxed{x+y=-2}](https://tex.z-dn.net/?f=%5Chuge%5Cboxed%7Bx%2By%3D-2%7D)
Step-by-step explanation:
The standard form of an equation of a line:
![Ax+By=C](https://tex.z-dn.net/?f=Ax%2BBy%3DC)
The point-slope form of an equation of a line:
![y-y_1=m(x-x_1)](https://tex.z-dn.net/?f=y-y_1%3Dm%28x-x_1%29)
where
![m=\dfrac{y_2-y_1}{x_2-x_1}](https://tex.z-dn.net/?f=m%3D%5Cdfrac%7By_2-y_1%7D%7Bx_2-x_1%7D)
We have two points (-2, 0) and (1, -3).
Substitute:
![x_1=-2;\ y_1=0;\ x_2=1;\ y_2=-3](https://tex.z-dn.net/?f=x_1%3D-2%3B%5C%20y_1%3D0%3B%5C%20x_2%3D1%3B%5C%20y_2%3D-3)
![m=\dfrac{-3-0}{1-(-2)}=\dfrac{-3}{1+2}=\dfrac{-3}{3}=-1\\\\y-0=-1(x-(-2))\\\\y=-(x+2)](https://tex.z-dn.net/?f=m%3D%5Cdfrac%7B-3-0%7D%7B1-%28-2%29%7D%3D%5Cdfrac%7B-3%7D%7B1%2B2%7D%3D%5Cdfrac%7B-3%7D%7B3%7D%3D-1%5C%5C%5C%5Cy-0%3D-1%28x-%28-2%29%29%5C%5C%5C%5Cy%3D-%28x%2B2%29)
<em>add x to both sides</em>
![x+y=-2](https://tex.z-dn.net/?f=x%2By%3D-2)
Answer:
C
To find the area of a circle, use the equation A =
![r^{2}](https://tex.z-dn.net/?f=r%5E%7B2%7D)
Answer:
Um theres no question or picture. Or document.
Step-by-step explanation:
Answer:
80.7 inches
Step-by-step explanation:
circumference = 2 * pi * r
2 * pi * r = 507 inches
r = (507 inches)/(2 * pi)
r = (507 inches)/(2 * 3.14159)
r = (507 inches)/(6.2832)
r = 80.7 inches
15% of 1200 = 180
1200-180= 1020
to find the cost price use the discounted price and take it away from the original, then use the profit take away the discounted price.
1020-120=900
the cost price of the watch is Rs. 900