In order to find the area of a triangle you have to multiply the base with the height then divide by 2.
hope this helps
In order to be differentiable everywhere, 
must first be continuous everywhere, which means the limits from either side as 
must be the same and equal to 
. By definition, 
, and
so we need to have 
.
For to be differentiable at 
, the derivative needs to be continuous at , i.e.
We then need to have
Then
Answer:
draw a square using only 16 squares representing the area, so 8 by 8 by 8 by 8
1.75
2.15
3.105
4.90
these are the answers
