What is the approximate area of the shaded sector in the circle shown below?  

Answer

4.71 cm²

Explanation

Area of a circle = πr²

Where r is the radius of the circle.

For a sector which is  part of a circle, its area is given by;

Area of a sector = (Ф/360)πr²

where Ф is the angle making the sector at the center of the circle.

∴ Area of a sector = (Ф/360)πr²

                             = 60/360 × π × 3²

                             = 1/6 × π × 9

                              = 4.71 cm²

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b