Answer:
60
Step-by-step explanation:
lol I love that
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2.8 ! the two is the whole and the fraction is the 8 after the decimal ! happy learning!
Answer:
40
Step-by-step explanation:
The given shape is made up of 4 equal right angled triangles.
Formula : -
Area of right angled triangle
= bh / 2
Here,
Base ( b ) = 5
Height ( h ) = 4
Area of each right angled triangle
= bh / 2
= ( 5 x 4 ) / 2
[ 4 = 2 x 2 ]
= ( 5 x 2 x 2 ) / 2
= 5 x 2
= 10
Area of 4 right angled triangles
= 4 x 10
= 40
Note : -
" □ " signify " right angle ".
If
then we should have
Differentiating with respect to 
gives
So 
is indeed conservative, and
The answer is m=3/4 hope this helps
