Answer:
The coordinates of point B are : (-1, 1)
Step-by-step explanation:
You multiply -4 by 2 which gives you -8 then you multiply 1 by 2 which gives 2.
Then you create the equations 
you substitute -7 for +7 and add 7 to -8 which gives -1 (
) and subtract 1 from 2 which gives you 1 (
)
To check your answer use the midpoint formula 
which gives you your midpoint (-4,1)
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)
20.89<u>6</u>
The number 3 places after the decimal is the thousandth place.
.8 → tenth place
.8<u>9</u> → hundredths place
.89<u>6</u> → thousandth place
Answer:
the diameter of the semi-circle is 5 in
the area of the shape is 79.63 in squared
Step-by-step explanation:
