Answer:
f(x,y)=(3x,3y)
Step-by-step explanation:
Dilation with the centre at the origin with scale facor k,
= f(x,y)--->f(kx,ky)
When k=3,
f(x,y)---->f(3x.3y)
X = 17
X + 3
———- = 5
4
Multiply both sides of the equation by 4
X + 3 = 20
Move constant to the right-hand side and change its sign
X + 3 = 20
-3 -3
X = 20 - 3
Subtract the numbers
X = 20 - 3
X = 17
Answer:
1/2
Step-by-step explanation:
Just take any two coordinates, and use this fornula
Y2 - y1
-----------
X2 - x1
Answer:
Option (D). 110°
Step-by-step explanation:
Since EB and AD are diameter,
= 
= 180°
= 180° -------(1)
And 
180° = 40° + 
= 140°
Since, 
= 140° [Given 
]
= 70°
From equation (1),
= 180° -
= 180°- 70°
Therefore, measure of arc(EDC) = 110°
Option (D) will be the answer.
