Answer:
π - 
Step-by-step explanation:
note that
= x
Given

= π - 
Answer:
x=-5.4
Step-by-step explanation:
0.6+0.2x=-0.48
0.2x=-0.48-0.6
0.2x=-1.08
x=-1.08/0.2
x=-5.4
Answer:
answer b
Step-by-step explanation:
Answer:
104 in²
Step-by-step explanation:
If OR = 8 then 8 x 2 = 16
PM= (42-16)/2=13
Therefore area = 8 x 13 = 104 in²
To check the perimeter is right:
2(8+13) = 42