F^-1(x)=1+5×2x
I hope this helps
Answer:
use a graphinig calculator
Step-by-step explanation:
11x° is interior angle of ladder to the ground
and 7X° is interior angle of ladder to the wall
exterior angle of a ladder to wall is 180-7x
and exterior angle of a ladder to ground is 180-11x
[(2×12)+10+(3×12)+12+9]/12=
[24+10+36+12+9]/12=
[34+36+21]/12
81/12=6.75
81 total inches of material
6.75 feet or 6 feet 9 inches
12 inches to a foot
3 feet to a yard
