Which of the expressions below have exactly 4 terms?
select all that apply.
a) 15x4 + 9x2 + 5x + 12
b) 12y3 + 8y2 + 4y + 20
c) 18-5n + 3n + 43
d) 4x3 + 12x

step-by-step explanation:

abc

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