Which formula describes the following geometric sequence? remember that n represents the term number. 3, 6, 12, 24, an = 2 · 3n - 1 an = 3 · 2n - 1 an = 2 + 3(n - 1) an = 3 + 2(n - 1)

30

step-by-step explanation:

times by times

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm