The tangent line is perpendicular to the radius from the center of the circle to the point of tangency.
ΔDCE is similar to ΔDBA
DC/DB=DE/DA
15/50=DE/40
DE=12
Step-by-step explanation:
Taking any two points through which the line passes;(-10,-3) and (-5,-1)
The equation of the line is given by





=> 5y+15 = 2x+20
=> 5y =2x+5

option C
It is commutative property
Answer:
yung 70
Step-by-step explanation:
i hope its help
carry on learning
Answer:
Ans: 29
Step-by-step explanation:
soln:
Given,
x=3 and y=-2
Now,
x^2-3xy+1/2y^2
= 3^2-3×3×(-2) +1/2(-2)^2
= 9+18+4/2
= (18+36+4) /2
= 58/2
= 29 Ans