Find the area of the shaded portion intersecting between the two circles.

Area shaded portion = 16/3 π - 8√3

Step-by-step explanation:

The shaded portion consists of 2 equal segment

∵ Two circles have the same radii = 4

∵ The the length of the common chord of the two circles =  4

∴ The central angle of each segment = π/3 (60° equilateral Δ)

∵ Area segment = area sector - area Δ

∵ Area sector = 1/2 r²Ф = 1/2 × (4)² × π/3 = 8/3 π

∵ Area Δ = 1/4 s² √3 = 1/4 × (4)² × √3 = 4√3

∴ Area segment = 8/3 π - 4√3

∴ Area shaded portion = 2(8/3 π - 4√3) = 16/3 π - 8√3

top one is right

Step-by-step explanation:

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,