-12x = -48 A) 576 B) 4 C) -4 D) 1/4
2 answers:
You might be interested in
Circle b:
Diameter = x
Radius =
Area =
Circle a:
Diameter =
Radius =
Area =
Thus,
Area of circle b to area of circle a
=
÷ 
= × 
= 4
Hence, the area of circle b is 4 times the area of circle a.
Diameter = x
Radius =
Area =
Circle a:
Diameter =
Radius =
Area =
Thus,
Area of circle b to area of circle a
=
=
= 4
Hence, the area of circle b is 4 times the area of circle a.