Answer:
2
Step-by-step explanation:
Let f(x) = 2x – 1
Substitute (x + b) in place of x.
f(x + b) = 2(x + b) – 1
= 2x + 2x –1
To find
:


(Cancel common term)

Hence, 
In 1 minute, 4 litre water leaves = 4*1000 cubic cm = 4000

so, the height decrease = Volume/area =
hence water level in cm falling per min = 0.318
hence water level in cm falling per hr= 0.318 * 60 = 19.09
Answer:
The answer is 30.
Step-by-step explanation:
Hope this helps!
The midpoints of the two diagonals are the same, so ...
D = A +C -B
D = (-7-3+3, -7.5+2.5+7.5)
D = (-7, 2.5)
Another way to look at it is that D will have the same x-coordinate as A and the same y-coordinate as C (in order to make each coordinate repeated twice).
The coordinates of point D are
(-7, 2.5)