If
, then
and
because
lies in the fourth quadrant.
By DeMoivre's theorem,

so the answer is B.
Answer: 4x+10y
you can't simplify 4x+10y
Answer:
100,100
Step-by-step explanation:
perimeter=400 m
length=x
let width=y
2(x+y)=400
x+y=200
y=200-x
area A=xy=x(200-x)=200x-x²

101 - Percentage decrease =
101 - (43% × 101) =
101 - 43% × 101 =
(1 - 43%) × 101 =
(100% - 43%) × 101 =
57% × 101 =
57 ÷ 100 × 101 =
57 × 101 ÷ 100 =
5,757 ÷ 100 =
57.57