What is the area of the shaded sector of the circle?
9 pi units^2
27 pi units^2
81 pi units ^2
162 pi units^2

27π units²

Step-by-step explanation:

The area (A) of the shaded sector is calculated as

A = area of circle × fraction of circle

  =πr² ×

  = π × 9² ×

  = 81π ×

  = 27π units²

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.

move it to the other side

step-by-step explanation: