Answer:
(5a^2-4)*(25a^4+20a^2+16)
Step-by-step explanation:
1/4(8x+56)=20
1/4(8x)+1/4(56)=20
2x+14=20
2x=20-14
2x=6
X=3
Step-by-step explanation:
angle B=6x+4
6x=4
x=4/6
x=0.6
..I got this much...sorry if its wrong
Answer:
Length = 8 feet
Step-by-step explanation:
Perimeter = 2 x ( length + width )
20 = 2 x (length + 2)
10 = Length + 2
10 - 2 = Length
Therefore, Length = 8 feet