4.
h(f(x)=h(2x-1)=
(2x-1)^2+1=
4x²-4x+1+1=
4x²-4x+2
5.
f(f(x))=2(2x-1)-1=4x-2-1=4x-3
6.
f o g (x)=f(g(x))
h o g (x)=h(g(x))=
(3x)^2+1=
9x²+1
For me i'm getting $57.75
Area of the trapezoid can be calculated as:
Area = 0.5 x Height x Sum of Length of Bases
We have the measure of area and length of bases. Using the above formula we can find the height h of the trapezoid.
So, using the values we get:
Thus, the height of the trapezoid will be 6 in.