First, use simplify
(-a)^2+(a)^2
a^2+a^2
After adding them, your answer would be A.)
Hope this helps!
Answer:
width = 20
length = 28
Step-by-step explanation:
perimeter=96
width=x
length=x+8
(length*2) + (width*2) = perimeter
2(x+8) + 2(x) = 96
2x+16+2x=96
4x+16=96
4x=80
x=20
width = 20
length = 28
Answer:
x = 10
Step-by-step explanation:
recall that for a square with side length "L", the area of the square can be expressed as
Area = L x L
or
Area = L²
in this case we are given that Area, A = 32x
and that Side Length, L = 8√5
If we substitute these into the equation, we will get:
Area = L²
32x = (8√5)² (using the properticals of exponents, we can re-write the right side)
32x = (8)² · (√5)²
32x = 64 · 5
32x = 320 (divide both sides by 32)
x = 320 / 32
x = 10