36
Step-by-step explanation:
5x-6+3x+90=180
8x+84=180
8x=96
x=12
Plug it in to 3x
3x12=36
Answer:
if x=6, then f(6)=11
164 Cm^3
Solution
V=
3
2
a
h
=
7
≈
163.6788